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Full text of "Arcade Game Manual: Midway Service Bulletin"

CABLE - MiDCO 
TBLBX NO. 72-1596 




MIDWAY MFG. CO.— 

A BALLY COMPANY 

10750 W. GRAND AVENUE • FRANKLIN PARK, ILL 60131 



PHONE: AREA CODE 312 451-1360 



CHICAGO PHONE: 992-2250 



TABLE OF CONTENTS 



SfLF TESTING RAMS & ROMS 
HAMS & PROM CHART 
GAME NUMBERS 
DIFFERENT POWER SUPPLIES 
ANTI-PENNY KIT 
ANTI-STRING KIT 
WIZARD OF WOR FEATURES 

RALLY X RAM CODE 

GORF CARD RACK SYSTEM 

GORF PROGRAM CHANGE 

SPECIAL ALLEN WRENCH 

ANTI-STATIC CLEANER 

NEW BACK DOOR KEY 

CREDIT BYPASS JACK 

COLOR MONITOR BRIGHTNESS ADJUSTMENT 

PAC-MAN CUSTOM CHIP 

PAC-MAN DIP SWITCHES 

PAC-MAN ROM & RAM TEST CODE 

CARD RACK SYSTEM TEST CARDS 

SPACE ENCOUNTER STROBE UNIT FIX 

SPACE ENCOUNTER TRIGGER KIT 

SPACE ENCOUNTER GAME BOARDS 

SPACE ENCOUNTERS 25K POTS 

SPACE ENCOUNTERS POWER SUPPLY 

GALAXIAN COIN SWITCH CAPACITOR 

GALAXIAN AND PAC-MAN STATIC KIT 

GALAXIAN RAM & ROM TEST 

GALAXIAN PROGRAM #1& #2 

GALAXIAN PROGRAM #3 

GALAXIAN ALTERNATE P.C. BOARD 

GALAXIAN BAD RAM #2 

VIDEO GAME MONITORS 

ELECTROHOME COLOR ADJUSTMENT 



Page No. 

1 

2 

3-6 

7 

8-9 

10 

11 

12-13 

14 

15-17 

18 

19 

20 

21 

22 

23 

24 

25 

26 

27-28 

29—30 

31 
32-33 
34 
35 
36-37 
38 
39 
40 
41 
42 
43 



GALAXIAN INTERFACE WIRE SEQUENCE 

WELLS GARDNER INTERFACE WIRE SEQUENCE 

ELECTROHOME INTERFACE WIRE SEQUENCE 

GAUXIAN WELLS GARDNER 19K 4500 

GALAXIAN 25 INCH MONITOR 

GALAXIAN BLACK & WHITE MODIFICATION 

EXTRA BASES BALLSENSOR MODIFICATION 

EXTRA BASES RAM CARDS 

DELUXE SPACE INVADERS NAME FEATURES 

SPACE INVADERS DELUXE CUSTOM I.C. 

SPACE INVADERS DELUXE PROM & ROMS 

PROM & ROM IDENTIFICATION 

SPACE INVADERS RANDOM GARBAGE 

SPACE INVADERS LINES IN VIDEO 

SPACE INVADERS DIP SWITCH SETTING 

SPACE INVADERS 25S10 & 74151 CHIPS 

SUBMARINE ZERO SWITCHES 

18 WHEELER PREMATURE GAME OVER 

18 WHEELER BACK DOOR VENTING 

ELECTROHOME GO-2 COLOR MONITOR 

CUSTOM CHIPS 

SEA WOLF II ELECTROHOME MONITOR 

ROTATION Vm POWER RESET 

ROTATION VIII "F"&"G" BOARD 

RAM & ROM SELF TEST BOWLING ALLEY 

STRAPPING 2716 & 9316 

PROM STRAPPING SINGLE SUPPLY 

POWER SUPPLY CHECK LIST 

MOTHER BOARD RESET FIX 

MONITOR YOKE WIRING 

MONITOR MANUFACTURERS 

GLOSSARY OF TERMS 



Page No. 
46-50 

51 

52 

53 
54-55 

56 

57 

58 



61 

62 

63-64 

65 



67 



70-71 

72 

73 

74 
75-76 

77 
78-79 

80 

81 

82 

83 
84—85 



87 




MIDWAY MFG. CO.— 

A BALLY COMPANY 

10750 W. GRAND AVENUE • FRANKLIN PARK, ILL 60131 



CABLE - M/DCO 
TELEX NO. 72-1596 

PHONE: AREA CODE 312 451-1360 



CHICAGO PHONE: 992-2250 



SERVICE BULLETIN 



Roms and Rams Self Testing 



GAME 



SELF TEST SWITCH 



Gun Fight 
Sea Wolf 

Tornado Baseball 

Maze 

280ZZap 

Check Mate 

Boot Hill 

Double Play 

Road Runner 

Guided Missile 

Laguna Racer 

M-4 

Clowns 

Extra Inning 

Sea Wolf II 

Space Walk 

Dog Patch 

Shuffleboard 

Bowling Alley 

18 Wheeler 

Phantom II 

Super Speed Race 

Space Invaders II 

Galaxian, Pac-Man & Rally X 

Space Encounters 

Space Zap, Gorf & Wizard Of WOR 



None 



Roms only 

Switches 6, 7, & 8 to off position 

Switch #6 off 
Switch #4 off 
Switch #3 off & #4 on 
Switch #8 off 
Switch ifS off 
Switch #7 on 
Switch #7 & #8 off 
Switch #8 on 
Switch #7 off & #8 on 
Switch #5 on 
Switch #8 off 
Switch #7 on 
Switch #8 off 
Switch #8 off 
Switch #6 on 
Switch #8 on 
Switch #8 on 
Switch #8 on 
Switch #6 off 
Switch #8 off 
Switch #8 off 
Slide Switch on 
Switch #5 off & #6 on 
Slide Switch on 



NOTE: Activate coin door tilt switch to start self test 
invaders & Blue Shark has no Ram and Rom Test. 



(2X) 



(2X) 
(2X) 

(2X) 

(2X) 

(2X) 

(Z80) 

(2XL) 

(Z80) 

(Z80) 

(2XL) 

(2XL) 



ROM 
GAME 

GUN FIGHT 

SEA WOLF 

TORNADO BASEBALL 

MAZE 

280 ZZZAP 

CHECKMATE 

BOOT HILL 

DOUBLE PLAY 

ROADRUNNER 

GUIDED MISSILE 

LACUNA RACER 

M-4 

CLOWNS 

EXTRA INNING 

SEA WOLF II 

SPACE WALK 

DOG PATCH 

SHUFFLEBOARD 

ROTATION VIII 

SPACE INVADER 

BOWLING ALLEY 

BLUE SHARK 

18 WHEELER 

PHANTOM II 

SUPER SPEED RACE 

SUBMARINE 

SPACE INVADERS DELUXE 

SPACE INVADERS il 



& PROM CHART 
4K 



(NAMCO) GALAXIAN 



8 
8 

NO 

8 

NO 

8 

NO 

NO 

NO 

NO 

NO 

NO 

NO 

NO 

NO 

NO 

NO 

NO 

NO 

NO 

NO 

NO 

NO 

NO 

NO 

NO 

NO 

NO 
NO 



GAME 8K 

EXTRA BASES NO 

SPACE ENCOUNTERS NO 

SPACE ZAP NO 

CORF NO 

PAC-MAN NO 

RALLY X NO 

Wizard Of WOR NO 



(3604) 
(3604) 

(3604) 

(3604) 



8K 

4 

4 

NO 

4 

6 

4 

NO 

8 

8 

8 

7 

8 

6 

NO 

NO 

8 

NO 

NO 

NO 

NO 

NO 

NO 

NO 

NO 

3 

3 

NO 

NO 
NO 



(1976) 
(27581) 

(2708) 
(2708) 
(2708) 

(2708) 
(2708) 
(2708) 
(2708) 
(2708) 
(2708) 



(2708) 



16K 

8 

8 

8 

16 

NO 

NO 

NO 



16K 

NO 

2 

3 

2 

3 

2 

4 

4 

4 

4 

4 

4 

NO 

5 

4 

NO 

4 

4 

4 

4 

5 

3 

4 

4 + 1 

2 

2 

5 

6 

7 



(9316) 
(9216) 
(9316) 
(9316) 
(9216) 
(9316) 
(9316) 
(9316) 
(9316) 
(9316) 
(9316) 

(2716) 
(2716) 
(9316) 

(2716) 

(2716) 

(2716) 
(2716) 
(9316) 

(2716) 
(2716) 

(2716) 
(2716) 

(2716) 

(2716) 
(9316) 

(2716) 

(2716) 
(9316) 



32K 

4 

NO 

4 

8 

6 

5 

7 



CABLE - MIDCO 
TELEX NO. 77-1596 




/%/\ PHONE: AREA COPE 312 451-1360 

MIDWAY MFG. CO. ch/cago phone.. 992-2250 

A BALLY COMPANY 

10750 W. G«AND AVENUE • FRANKUN PARK, ILL. 60)3) 



SERVICE BULLETIN 



GAME (UPRIGHT) 


DATE 


GAME NUMBER 


GUN FIGHT 


1975 


597 


SEAWOLF 


1976 


596 


TOP GUN 


1976 


603 


TORNADO BASEBALL 


1976 


605 


280 ZAP 


1976 


610 


MAZE 


1976 


611 


BOOT HILL 


1977 


612 


CHECKMATE 


1977 


615 


ROADRUNNER 
DESERT GUN 


1977 


618 


DOUBLE PLAY 


1977 


619 


LACUNA RACER 


1977 


622 


GUIDED MISSILE 


1977 


623 


M-4 


1977 


626 


SEAWOLF II 


1978 


625 


CLOWNS 


1978 


630 


SPACE WALK 


1978 


640 


EXTRA INNING 


1978 


642 


SHUFFLEBOARD 


1978 


643 


DOG PATCH 


1978 


644 



BOWLING ALLEY 


1979 


SPACE INVADERS 


1979 


PHANTOM II 


1979 


18 WHEELER 


1979 


SUBMARINE 


1979 


SUPER SPEED RACE 


1979 


EXTRA BASES 


1980 


SPACE ENCOUNTERS 


1980 


SPACE INVADERS II 


1980 


SPACE INVADERS DELUXE 


1980 


BLUE SHARK 


1980 


CALAXIAN 


1980 


SPACE ZAP 


1980 


PAC-MAN 


1980 


CORF 


1981 


RALLY X 


1981 


WIZARD OF WOR 


1981 



730 

739 

652 

653 

760 

762 

761 

645 

851 

852 

742 

866 

902 

932 

873 

935 

961 



ANDY DUCAY 
SERVICE MANAGER 

AD/dd 




CABLE - MIOCO 
TBLBX NO. 72-1596 



MIDWAY Mr Gm CU. ch/cago phone 992-2250 

A BALLY COMPANY 

10750 W. GRAND AVENUE • FRANKLIN PARK, ILL 6013] 



SERVICE BULLETIN 



GAME (TABLE) 


DATE 


GAME NUMBER 


GUN FIGHT 


1975 


604 


TORNADO BASEBALL 


1976 


607 


MAZE 


1976 


613 


CHECKMATE 


1977 


617 


DOUBLE PLAY 


1977 


621 


ROTATION VIII 


1978 


627 


CLOWNS 


1978 


634 


BOWLING ALLEY 


1979 


749 


SPACE INVADERS 


1979 


775 


SPACE INVADERS II 


1980 


851 


SPACE INVADERS DELUXE 


1980 


870 


GALAXIAN 


1980 


869 


SPACE ZAP 


1980 


920 


EXTRA BASES 


1980 


889 


PAC-MAN 


1980 


933 


CORF 


1981 


927 


RALLY X 


1981 


936 



CABLE - M/DCO 
TELBX NO. 72-1596 




^. --_^^ ^^^ PHONE: ARE A CODE 3)2 45hl360 

MIDWAY /WFG- CO. ch/cago phone.. 992-2250 

A BALLY COMPANY 

70750 W. GRAND AVENUE • FRANKLIN PARK, ILL 60131 



SERVICE BULLETIN 



GAME (MINI) 

SPACE ENCOUNTERS 

SPACE ZAP 

PAC-MAN 
CORF 

RALLY X 1981 937 



DATE 


GAME NUMBEP 


1980 


905 


1980 


908 


1980 
1981 


934 
926 




MIDWAY MFG. CO.— 

A BALLY COMPANY 

10750 W. GRAND AVENUE • FRANKLIN PARK, ILL 60131 



CABLE - MIOCO 
TELEX NO. 72-1596 

PHONE: AREA CODE 312 451-1360 



CHICAGO PHONE: 992-2250 



SERVICE BULLETIN 



GAME 

GUN FIGHT (EARLY MODEL) 

GUN FIGHT TO SPACE ENCOUNTERS 
8080 SYSTEM (1975 - 1980) 

SEAWOLFII 

ROTATION VI 1 1 

SUPER SPEED RACE 

18 WHEELER 

SUBMARINE 

EXTRA BASES 

SPACE ZAP 

CORF 

WIZARD OF WOR 



POWER SUPPLY NUMBER 

PC 80-901 

PC A082-90400-H000 
PCA082-90401-B000 
PC A082-90400-E000 
PCA082-90401-C000 
PC A082-90406-B000 
PC A082-90406-B000 
PC A082-90408-D000 
PCA082-9O411-A0O0 
PCA082-90411-A000 
PCA082-90411-A000 



ANDY DUCAY 
SERVICE MANAGER 



AD/dd 



CABLE -MIDCO 

TELEX NO. 72-1596 




M^^^^ ^%^% PHONE: AREA CODE 312 451-1360 

IwK f iJ WWn J IwK r \Xm W W« CHtCAGO PHONE: 992-2250 

A BALLY COMPANY 
10750 W. GRAND AVENUE • FRANKLIN PARK, ILL 60131 



SERVICE BULLETIN 

GAME: All Midway Games 

CONDITION: Flipping pennies into return cup for free games. 

REMEDY: 

Order from the Midway Parts Department an Anti-Penny Device Field Kit. 
Part number A090-00064-0000. 

Install as per instructions. 



Andy Ducay 
Service Manager 



AD:jk 
2/13/80 



ANTI-PENNY DEVICE INSTALLATION 
A090-000e4-0000 



1. 
2. 
3. 

4. 

5. 



REMOVE COIN ACCEPTOR FROM BRACKET. 

REMOVE (3) HEX HEAD SCREWS THAT HOLD BRACKET TO DOOR. 

REMOVE BRACKET FROM DOOR. 

INSTALL ANTI-PENNY DEVICE MIDWAY PART NO. A090-00064-0000 USING (2) 
6-32 X 5/16 SLOT HEX HEAD SCREWS MIDWAY PART NO. 0017-00101-0555. 
MOUNT DEVICE WITH 1 SCREW FROM THE FRONT AND 1 SCREW FROM THE 
BACK OF BRACKET AS SHOWN. 

SCREW BRACKET BACK TO DOOR AND SNAP COIN ACCEPTOR BACK IN 
PLACE. 




MIDWAY MFG. CO. 



A BALLY COMPANY 



CABLE - M/DCO 
TELEX NO. 72-1596 




MIDWAY MFG. CO.— 

A BALLY COMPANY 

10750 W. GRAND AVENUE • FRANKLIN PARK, ILL 60131 



PHONE: AREA CODE 312 45 M 360 



CHICAGO PHONE: 992-2250 



ANTI-STRING DEVICE INSTALLATION 
A090-00061-0000 

SERVICE BULLETIN 



1. REMOVE 1/8 LONG SLOT HEAD MACHINE SCREW. 

2. INSTALLANTI-STRINGINGDEVICEMIDWAYPARTNO. 0090-00907-0000. 

3 REPLACE 1/8 LONG SLOT HEAD MACHINE SCREW (STEP 1) WITH 3/8 
LONG SEMS PHILLIPS HEAD MACHINE SCREW. MIDWAY PART NO. 
0017-00101-0339. 

4 REMOVE (2) #4 SLOT HEAD MACHINE SCREWS WHICH MOUNT 
MICRO SWITCH AND SWITCH COIN GUIDE ASSEMBLY. 

5 REPLACE SWITCH COIN GUIDE ASSEMBLY WITH NEW SWITCH COIN 
' GUIDE ASSEMBLY MIDWAY PART NO. A090-00060-0000. MOUNT 

MICRO SWITCH USING (2) #4 MACHINE SCREWS REMOVED IN STEP 4. 



Andy Ducay 
Service Manager 




10 



CABLE - M/DCO 
TELEX NO. 72-1596 




MIDWAY MFG. CO- ch/cago phone: 992.2250 

A BALLY COMPANY 

10750 W. GRAND AVENUE • FRANKLIN PARK, ILL 60131 



June 11, 1981 

SERVICE BULLETIN 

GAME: WIZARD OF WOR 

SUBJ ECT: NEW FEATURES 



1 Wizard of Wor allows you to service the entire electronic system (with the 
exception of the video monitor) from the front of the cabinet, (upright only). 

2. Wizard of Wor features lighted coin slots. 

3. Wizard of Wor is equipped with wheels on the back of the cabinet for ease of 
movement. 

4. Wizard of Wor is a talking video game that uses three speakers for improved 
sound. 

5 Wizard of Wor features Midway's positive approach to increase price of play 
at the player's option. A single coin gives a player the standard number of 
Worriors, two coins for two players. If additional Worriors are desired, 2 
coins will give 1 player twice as many Worriors plus an additional bonus 
Worrior. Four coins will give 2 players twice as many Worriors plus an 
additional bonus Worrior for each player. 

6. New service outlet. 

7. Flourescent lamp fixture. 

8 Wizard of Wor copyrighted and trademarked in accordance with the U.S. 
copyright laws. Midway will protect its proprietary rights agamst any 
infringers of Wizard of Wor. 



ANDY DUCAY 
SERVICE MANAGER 

AD/dd 



11 



CABLE - M/OCO 
TELBX NO. 72-1596 




#%^% PHONE: AREA CODE 312 451-1360 

MIDWAY MFG. CO. Chicago phonE: 992.2250 

A BALLY COMPANY 

10750 W. GRAND AVENUE • FRANKLIN PARK, ILL 60131 



June 11, 1981 

SERVICE BULLETIN 

GAME: RALLY X 

SUBJ ECT: RAM TEST MESSAGE CODE 



1 . The position of rams given in our Ram Test Message on page 6 of the Parts 
and Operating Manual is incorrect. 

2. The correct Ram Test Message Code is shown in figure #1. 

3. Each of the 2114 Rams are checked during the Ram Test and when any 
irregularity is found a test message (e.g. Ram OL) is displayed and the test 
series stops. If there is no irregularities in the rams the sound and switch 

test begins. 

4. The Ram Test is only for the 2114 Rams. 



ANDY DUCAY 
SERVICE MANAGER 

AD/dd 



12 



FIGURE #1 



Test Message 



RAMOL 



RAM OH 



RAM1L 



RAM1H 



RAM2L 



RAM2H 



RAM3L 



RAM3H 



RAM4L 



RAM4H 



RAM5L 



RAM5H 



Position of RAM on PCB 



6C 



6A 



6D 



6B 



6K 



6J 



6L 



6H 



6M 



6F 



6N 



6E 



13 



CABLE - MIDCO 
niBX NO. 72'}S96 




^%#% PHONE: AREA CODE 312 451-1360 

MIDWAY MFG- CO- ch,cago phone: 992.2250 

A BALLY COMPANY 

J 0750 W. GRAND AVENUE • FRANKLIN PARK, ILL. 60131 



SERVICE BULLETIN 

GAME: GORF 

SUBJ ECT: NEW 6 CARD Z-80 SYSTEM USI NG A CARD RACK 

************************************************************ 



GAME CARD (PC A084-90708-A873) 
l&O CUSTOM CHIP (TWO) 
TALKING CHIP -SC-01 

ROM & RAM CARD (A082-91364-A000) 

DOMESTIC & FOREIGN (A082-91374-A000) 

RAMS 2114 

ROMS 9316 OR 9332 

CPU CARD (A082-91354-E000) 
Z80 CPU 

ADDRESS CUSTOM CHIP 
DATA CUSTOM CHIP 
CRYSTAL 14,318 

RAM CARD (A082-91 356-0000) 
TWO RAM CARDS 
16 RAM EACH (M4027) 

PATTERN CARD (PC 082-91 355-COOO) 

SHIFTS INFORMATION AT A FASTER RATE 

POWER SUPPLY (PC 082-9041 1-AOOO) 
SAME AS SPACE ZAP 

NOTE: ALL PC CARDS EDGE CONNECTORS ARE GOLD PLATED. 



Andy Ducay 
Service Manager 



14 



CABLE - MIDCO 
TELEX NO. 72-1596 




^^% r^r% PHONE: AREA CODE 3n 45)-)360 

MIDWAY MFG. CO. ch/cago phone.- 992-2250 

A BALLY COMPANY 

J 0750 W. GRAND AVENUE • FRANKLIN PARK, ILL 60131 



April 27, 1981 

SERVICE BULLETIN 

GAME: GORF 

SUBJ ECT: ROM PROGRAM CHANGE 



1. Rom program number two is now in all Gorf games which will make the 
game harder to play after the 5th mission . 

2. The roms will not be interchangeable between program number one and 
two. 

3. The rom code and board location of program number one and two roms. See 
the code and location chart. 

4. The rom location on domestic and foreign rom/ram boards are different. 



ANDY DUCAY 
SERVICE MANAGER 

AD/dd 



15 




MIDWAY MFG. CO.— 

A BALLY COMPANY 

10750 W. GRAND AVENUE • FRANKLIN PARK, ILL 6013) 



CABLE - MIDCO 
TELEX NO. 72-1596 

PHONE: AREA CODE 312 451-1360 



CHICAGO PHONE: 992-2250 



ROM COPE AND LOCATION CHART 

Domestic Rom/Ram Board 
PCA082-91364-A000 



PROGRAM NUMBER ONE 



ROM CODE 






LOCATION 


M873A-0850 






x-1 


M873B-0850 






x-3 


M873C-0850 






x-5 


M873D-0850 






x-7 


M873E-0850 






x-11 


M873F-0850 






x-1 3 


M873G-0850 






x-15 


M873H-0850 






x-1 7 




Foreign 


Rom/Ram Board 






PC A082-91374-A000 




ROM CODE 






LOCATION 


M873A-0850 






x-1 


M873B-0850 






x-2 


M873C-0850 






x-3 


M873D-0850 






x-4 


M873E-0850 






x-5 


M873F-0850 






x-6 


M873C-0850 






x-7 


M873H-0850 






x-8 



16 




MIDWAY MFG. CO.— 

A BALLY COMPANY 

10750 W. GRAND AVENUE • FRANKLIN PARK, ILL 60131 



CABLE - M/DCO 
TELEX NO. 72-1596 

PHONE: AREA CODE 312 451-1360 



CHICAGO PHONE: 992-2250 



ROM CODE AND LOCATION CHART 

Domestic Rom/Ram Board 

PCA082-91364-A000 



PROGRAM NUMBER TWO 



ROM CODE 

873-109AXR- 

873-109AXR- 

873-109A>;R- 

873-109AXR- 

873-109AXR- 

873-109AXR- 

873-109AXR- 

873-109AXR- 



AXSD 
BXSD 
CXSD 
DXSD 
EXSD 
FXSD 
CXSD 
•HXSD 



LOCATION 
x-1 
x-3 
x-5 
x-7 
x-11 
x-13 
x-1 5 
x-1 7 



ROM CODE 

873-109AXR- 
873-109AXR- 
873-109AXR- 
873-109AXR- 
873-109AXR- 
873-109AXR- 
873-109AXR- 
873-109AXR- 



AXSD 
BXSD 
CXSD 
DXSD 
EXSD 
FXSD 
-CXSD 
-HXSD 



Foreign Rom/Ram Board 
PCA082-91374-A000 



LOCATION 

x-1 
x-2 
x-3 
x-4 
x-5 
x-6 
x-7 
x-8 



17 




CABLE - MiOCO 
TBLBX NO. 72 1596 



-«— ^^ ^^^ PHONE: AREA CODE 3T2 457-7360 

MIDWAY MFG. CO. ch/cago phone.. 992.2250 

A BALLY COMPANY 

10750 W. GRAND AVENUE • FRANKUN PARK, ILL 60737 



April 3, 1981 

SERVICE BULLETIN 

GAME: GORF 

SUBJ ECT: ALLEN KEY 1/8" TAMPER PROOF WRENCH 
(0017-00009-0484) 



The operator can not service the control grip without this special wrench. 
Enclosed, please find a spare tamper proof wrench. 



ANDY DUCAY 
SERVICE MANAGER 

AD/pc 



18 



CABLE -M/DCO 
TELEX NO. 72-1596 




MM^^^ ^%#% PHONE: AREA CODE 312 45 M 360 

Irl f 1/ wwn W twl ■ w ■ www ch/cago phone.- 992-2250 

A BALLY COMPANY 

J0750 W. GRAND AVENUE • FRANKLIN PARK, ILL 60131 



March 30, 1981 

SERVICE BULLETIN 

GAME: PAC-MAN, RALLY X, & GORF 

SUBJ ECT: ANTI-STATIC CLEANER APPLICATION 



When a game has a plexiglas front glass and or tinted Plexiglas T.V. tube 
overlay, anti-static cleaner must be used. 

When using any anti-static cleaner, both surfaces of the Plexiglas must be 
sprayed and cleaned individually. Also, as a new policy, we will be usmg this 
same anti-static cleaner to clean the C.R.T, This is most important smce this is 
the prime source of static discharge. 

In the past we have been using a anti-static cleaner called K-Lux. We will 
continue using this product until the stock has been depleted. We will then 
begin using a new product called Merix Anti-Static No. 79 Concentrate 
(0017-00008-0091). This concentrate must be diluted 1:10-1 part concentrate; 
10 parts H20. 

Please read caution label before using. 



ANDY DUCAY 
SERVICE MANAGER 

AD/pc 



19 



CABLE - M/DCO 
JBieX NO. 721596 




_ -« tUtCf^ f^f% PHONE: AREA CODE 312 451-1360 

iWt f 1/ WWi\ W IWt ■ W ■ W %/■ CHiCAOO PHONE: 992-2250 

A BALLY COMPANY 

10750 W. GRAND AVENUE • FRANKLIN PARK, ILL 60131 



April 9, 1981 

SERVICE BULLETIN 

GAME: PAC-MAN, RALLY X & GORF 

SUBJ ECT: NEW BACK DOOR, #350 KEYS 



Some Pac-Man, Rally X & Gorf will have the new lllinis locks with #350 keys. 

Extra Illinois locks with #350 keys can now be ordered from our parts 
department. 

All operators must order locks and keys from their local distributor. 



ANDY DUCAY 
SERVICE MANAGER 

AD/pc 



20 




CABLE - M/DCO 
TELEX NO. 72)596 



r%^\ P^ONE: AREA CODE 312 451-1360 

MIDWAY MFG. CO. Chicago phone-. 992-2250 

A BALLY COMPANY 

10750 W. GRAND AVENUE • FRANKLIN PARK, ILL 60131 



March 30, 1981 

SERVICE BULLETIN 

CAME: PAC-MAN (UPRIGHT & MINI) 

SUBJECT: CREDIT MULTIPLIER 

BYPASS JACK PC# A080-9109-A000 



The credit unit bypass jack is not needed when a credit multiplier unit is used. 
PC# A082-01348-C000. 

The credit multiplier is for foreign games, for additional credits. 

When the credit multiplier is missing the coin jack must be inserted to the 
credit bypass jack for proper coin operation. 



ANDY DUCAY 
SERVICE MANAGER 

AD/pc 



21 



CABLE - MtDCO 
TELEX NO. 72-1596 




_^ _-_^^ r^^\ PHONE: AREA CODE 312 451-1360 

MIDWAY MFG. CO. ,,^^,^^ ,,^^,.^ ,,2-2250 

A BALLY COMPANY 

?0750 W. GRAND AVENUE • FRANKUN PARK, ILL 60131 



May 15, 1981 

SERVICE BULLETIN 

CAME: PAC-MAN & RALLY X 

SUBJ ECT: BRIGHTNESS ADJ USTMENT 

WELLS GARDNER COLOR MONITOR (K4604 - 4) 



1 . To set the brightness level on a Wells Gardner Color Monitor, use the Black 
Level Control located ontthe interface PC Board. 

2. Location of the Black Level Control can be found by following the logic board 
video cable which will be connected to the Interface PC Board. 

3. Do not alter the screen control on the neck board, this can distort the picture 
when used as a brightness control. 



ANDYDUCAY 
SERVICE MANAGER 

AD/dd 



22 




CABLE - M/DCO 
JBLEX NO. 72-1596 



^^ ^^\ PHONE: AREA CODE 312 451-1360 

MIDWAY IwFG. CO. ch/cago phone.. 992-2250 

A BALLY COMPANY 

]0750 W. GRAND AVENUE • FRANKLIN PARK, ILL 60131 



SERVICE BULLETIN 



GAME: P AC-MAN 

SUBJ ECT: CUSTOM CHIPS 6-D and 5-S 



:|e:|c:|e3(c:|:3|c 



**************************♦**************************'* 



When the custom chips are not available due to a supply problem the 
following alternate plug in units will be used. 



1 . At location 6-D PC 082-91 383-BOOO Z80 sync buss controller. 

2. At location 5-S PC 082-91 384-BOOO V-Ram Addresser. 



Andy Ducay 
Service Manager 



AD/dc 



23 



CABLE - M/DCO 
TBLBX NO. 72-1596 




^^^^ PHONE: AREA CODE 312 451-1360 

MIDWAY MFG. CO. ch/cago phone: 992.2250 

A BALLY COMPANY 

10750 W. GRAND AVENUE • FRANKUN PARK, HL 60131 



11-13-80 

SERVICE BULLETIN 

GAME: PAC-MAN 

SUBJ ECT: DIP SWITCH SETTING (7 & 8) 

1. Switches 7 & 8 must be in the off position for proper game operation. 

2. When switch #7 is on, a test of all racks is possible. 

3. When switch #8 is on, the picture will lock up. 

4. The above information will be added to all switch setting cards. 



Andy Ducay 
Service Manager 



AD/pr 



24 




MIDWAY MFG. CO.— 

A BALLY COMPANY 

10750 W. GRAND AVENUE • FRANKUN PARK, tlL 60131 



CABLE - MIDCO 
TELEX NO. 72-1596 

PHONE: AREA CODE 312 451-1360 



CHICAGO PHONE: 992-2250 



Januarys, 1981 



SERVICE BULLETIN 



GAME: P AC-MAN 

SUBJ ECT: ROM-RAM TEST 

************************************************************ 



BAD ROM LOCATION CODE 



DISPLAY 
M-Rom-O 
M-Rom-1 
M-Rom-2 
M-Rom-3 



DISPLAY 
BadV Ram-0 
BadV Ram-1 
Bade Ram-0 
Bade Ram-1 
Bad W Ram-0 
Bad W Ram-1 



BAD RAM LOCATION CODE 



LOCATION 
6E 
6F 
6H 
6J 



LOCATION 
4K 
4N 
4L 
4P 
4M 
4R 



ANDY DUCAY 
SERVICE MANAGER 



AD/pc 



25 



CAfltE - M/DCO 
TELBX NO. 72-1596 




llifr/^ f^f% P^Q^^-- ^^^^ ^Q^^ ^^^ 45?-? 360 

Irl I £/ Vw /I I Irl « U ■ W W» CH/CAGO PHON5: 992-2250 

A BALLY COMPANY 

10750 W. GRAND AVENUE • FRANKLIN PARK, ILL 60131 



SERVICE BULLETIN 

November 19, 1980 

GAME: SPACE ZAP, GORF & WIZARD OF WOR 

SUBJ ECT: Card Rack System Test Equipment 

************************************************************ 
To aid board repair the following test cards are available. 

1 . A Ram Test card to locate a bad Ram. A082-91516-A000. 

2. A Card Rack Test card which is used with the Ram Test Card and will also 
test the pattern card. A082-91517-A000. 

3. Order test cards from Midway's Parts Department. 



Andy Ducay 
Service Manager 



AD/dc 



26 



CABLi - MiOCO 
TELEX NO. 72-1596 




mMgW\tMi£i\f Hiir/^ f^f\ PHONE: AREA CODE 312 451-1360 

Irl f 1/ Vr M J Iwl ■ U ■ w \/« Chicago phone-. 992-2250 

A BALLY COMPANY 

10750 W, GRAND AVENUE • FRANKUN PARK, ILL 60131 



December 11, 1980 



SERVICE BULLETIN 

GAME: SPACE ENCOUNTERS 

SUBJ ECT: Strobe unit PC A084-91359-B645 
Serial No. 101 to 3700 

MODIFICATION: (see figure #1) 

************************************************************ 

1 . Change resistor R3 and R5 to one of the following values. 

1 . 300 ohms, 20 watts. 10% . 
2.310ohms,20watts.10%. 

2. Capacitor C-2 and C-3 should be 22MF. , 250 V. 

3. Check electrically. 



ANDY DUCAY 
SERVICE MANAGER 



27 



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28 



CABLB - M/DCO 
Tf LEX NO. 72-1596 




_^ -, _«_^i^ ^^^ PHONE: AREA C ODE 312 451-1360 

MIDWAY MFG. CO- ch,cago phone: 992.2250 

A BALLY COMPANY 

J 0750 W. GRAND AVENUE • FRANKLIN PARK, ILL 60131 



SERVICE BULLETIN 

November 19, 1980 

GAME: SPACE ENOUNTEIrS 

SUBJECT: Trigger Switch Kit 

*************************************************** 

1 . Due to field failures a new trigger switch is now available. 

2. The switch and hand grip assembly kit may be ordered from the parts 
department. (A645-00042-0000). 



Andy Ducay 
Service Manager 



AD/dc 



29 



(O 



tfe 



I 
CO>- 



o 
o 
o 

o 
= I 

UJCD S 

<?< en 
So 

«>< 2 
oi *-' 




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in 



z — ^ 
.OOUJ 

— ' ^1— 
iij 0:^-5 

UJCDOCO 

3IA-X3 
O-Oh-li- 



30 




MIDWAY MFG. CO.— 

A BALLY COMPANY 

10750 W. GRAND AVENUE • fRANKUN PARK, ILL 60131 



CABLE - MiDCO 
TELEX NO. 72-) 596 

PHONE: AREA CODE 312 451-1360 



CHICAGO PHONE: 992-2250 



SERVICE BULLETIN 



GAME: Space Encounters 

SUBJ ECT: Angle Encoders 

1 . Due to a shortage of Encoders some games will have 25K pots, (two) 

2. For proper operation of pots a A/C converter. PC A082-91377-B000 has 
been added. 

3. The A/C Converter PC is mounted under the control panel . 

4. Refer to instruction adjustment for proper pot alignment. 



Andy Ducay 
Service Manager 

AD/dc 



32 



SPACE ENCOUNTERS U.R. AND MINI 
INSTRUCTIONS TO ADJUST CONTROL PANEL: "B" VERSION 

1. Place adjustment switch (5) "OFF" and (6) "ON". 

2. Press trigger button, located on steering control to set test mode. 

3. On P.C. board A082-91377-B000, rotate Pot A clockwise and Pot B 
counter-clockwise. 

4. Push steering control forward, rotate vertical pot until defense ship is in 
Its' furthest position. Back off pot until ship starts to come back down. 
Tighten set screw. 

5. Put steering control in its' furthest out position. Rotate Pot A until defense 
ship stops in lower part of viewing area. 

6. Put steering control all the way to the left. 

7. Turn horizontal pot until defense ship is to the left side of the tunnel. 

8. Tighten set screw. 

9. Turn control to the right and adjust Pot B until the defense ship reaches 
the right side of the tunnel . 



A/G CONVERTER 
P.C. A082-91377-B000 

POT "A" 



T Trr ml 



POT "B' 



um 



10 

1 



10 



33 



CABLE - MIDCO 
TELEX NO. 72-1596 




r»^^ r^^\ PHONE: AREA CODE 312 451-1360 

MIDWAY MFG. CO. ch/cago phone.. 992-2250 

A BALLY COMPANY 

10750 W. GRAND AVENUE • FRANKLIN PARK, ILL 60131 



SERVICE BULLETIN 

CAME: Space Encounters 

SUBJ ECT: Power Supply PC0080-00904H 

Condition: 

The power supply +5 voltage may shut down in certain games due to an 
overload. The 0.18 5 watt resistor tolerance will affect the + 5 volts, shut down . 

Modification: 

1. Replace the 0.18 resistor with another 10% tolerance type (better 
tolerance). 

2. Replace the 0.18 resistor with a 5% tolerance if available. 

3. Parallel a 1 .5 1 watt resistor across the 0.18 resistor (rear side). 

4. Check game electrically. 

Note: This power supply overload only occurs in Space Encounters. 



Andy Ducay 
Service Manager 

AD/cm 



34 




MIDWAY MFG. CO.— 

A BALLY COMPANY 

10750 W. GRAND AVENUE • FRANKLIN PARK, ILL 6013] 



CABLE - MIOCO 
TELEX NO. 72-1596 

PHONE: AREA CODE 312 451 1360 



CHICAGO PHONE: 992-2250 



April 16,1980 



SERVICE BULLETIN 



GAME: 



SUBJECT: 



Galaxian (Serial No. #101 to #8400) 



Loss of Credit 



MODIFICATION: 

1. Install 100MF 10V capacitor to coin switch terminals as shown in 
Figure #1. 

2. Capacitor is only needed at one coin switch. 

3. Check game electrically. 

Figure #1 



ORN-B 



o 



r. 



100MF 10V 
CAPACITOR 



/ESt 



COIN SWITCH 



RED 



Andy Ducay 
Service Manager 



35 



CABlf-MIOCO 

TBLBX NO. 72- T 596 




Ailfff\IJ/il\^ tmCf^ f^f\ PHONE: AREA CODE 312 451-1360 

iwM f 1/ Vr M I Irl ff U ■ \# %/■ CH/CAGO phonE: 992-2250 

A BALLY COMPANY 

?0750 W. GRAND AVENUE • FRANKLIN PARK, ILL 6013) 



April 29,1980 



SERVICE BULLETIN 



GAME: CALAXIAN & PAC-MAN 

SUBJECT: StaticCondition Causing A False 
Ram and Rom Test. 



************************************************************ 

MODIFICATION: 

1 . Order from the Midway Parts Department an Anti-Static Kit PC A865- 
00078-0000 and install as shown in instruction diagram. (Fig. #1 ) 

2. Check game out electrically. 



Andy Ducay 
Service Manager 



36 



CABl£ - MIOCO 
TBLBX NO. 721596 




mMgr\tMi£k\f tmcf^ f^f% phone: area code 212 451-1360 

iwi f 1/ Vr M F IW ff U ■ w w ■ CH/CAGO phone: 992-2250 

A BALLY COMPANY 

10750 W. GRAND AVENUE • FRANKLIN PARK, ILL 60131 



February 11,1980 



SERVICE BULLETIN 



GAME: Galaxian 

************************************************************ 

GAME BOARD TEST 

If game board is good, the foliowing information will be displayed on the 

screen: 
OK 

Coin Adjustment Setting 
Bonus Adjustment Setting 
No. of Gaiixip Per Game Setting 

RAM/ROM TEST 

If any of the Rams or Roms are faulty, the following information will be 

displayed on the screen: 

*'Bad Ram 1 " - indicates bad Ram at location 7N or 7P. 

"Bad Ram 2" - indicates bad Ram at location 3F or 3H. 

**Bad Ram 3'* - indicates bad Ram at location 4FH or 5FH. 

''Bad Rom" - indicates bad Rom on memory board. 
*NOTE: Early models were not equipped with memory boards. In these 
models, ''Bad Rom" indicates bad Rom at location 7F or 7H. 

CONTROL PANEL and COIN SWITCH TEST 

To verify operation of any switch, close switch in question. If the switch is 
operating properly, a game sound will emit when closure is made. 
CAUTION: Be sure to return test switch to game mode when all tests are 
completed. 

Andy Ducay 
Service Manager 

AD/jk 

38 




MIDWAY MFG. CO-— 

A BALLY COMPANY 

10750 W. GRAND AVENUE • FRANKLIN PARK, ILL. 60131 



CABLE - MIDCO 
TELEX NO. 72-7596 



PHONE: AREA CODE 312 457-1360 



CHICAGO PHONE: 992-2250 



GALAXIAN LOGIC BOARD 



SERVICE BULLETIN 



^c************************************************* *********** 



There are two (2) versions of the Galaxian Program. They are: 



M866J-09S0 

M866L-09S0 

M866U-09S0 

M866V-09S0 

M866W-09S0 

M866Y-09S0 

M866Z-09S0- 



CHARACTER- 



PROGRAM. 



NAMCO 



2. 



M866J-09S1 
M866L-09S1 
M866U-09S1 
M866Y-09S1 



CHARACTER- 
PROGRAM. 



MIDWAY 



The Midway Roms and the Namco Roms CHARACTER CANNOT be mixed. 
It will result in the super-imposing of the names in the attract mode of the 



game. 



However the Midway and Namco Program can be mixed with one exception 
and that is the locations U & Y. If you use one you'll have to use the other or 
you'll get a BAD ROM read-out. 



39 




MIDWAY MFG. CO.— 

A BALLY COMPANY 

10750 W. GRAND AVENUE • FRANKLIN PARK, ILL 60131 



CABLE - M/DCO 
TBLBX NO. 72-] 596 

PHONE: AREA CODE 312 451-1360 



CHICAGO PHONE: 992-2750 



SERVICE BULLETIN 



May 6, 1980 



GAME: 
SUBJECT: 



Galaxian (As of Serial No. 11,500) 

Rom program identification (3rd Program) 



1 . The 3rd program ciiange has new Bonus Values, (see Figure #1 ). 

2. New program identification (Game, Location and Program). 

M866 - U - 09S2 
M866- V-09S2 
M866-W-09S2 
M866 - Y - 09S2 
M866 - Z - 09S2 

3. The 1st program version 09S0 and 2nd program version 09S1 can not 
mix with 3rd program 09S2. 

4. The 1st and 2nd program has 2716 Proms and also 2716 Proms mixed 
with 9316 Roms. 

5. If additional clarification is needed please call the service department. 

6 New Program Bonus Values are as follows (Figure #1 ). 

SW. 3 SW. 4 

Bonus Galaxip at 7000 pts. OFF ON 

Bonus Galaxip at 1 0,000 pts. ON OFF 

Bonus Galaxip at 1 2,000 pts. OFF ON 

Bonus Galaxip at 20,000 pts. ON OFF 

Andy Ducay 
Service Manager 



40 



CABLE - M/DCO 
TELEX NO. 72-1596 




MIDWAY MFG. CO.— 

A BALLY COMPANY 

10750 W. GRAND AVENUE • FRANKLIN PARK, ILL 6013) 



PHONE: AREA CODE 312 451-1360 
CHiCAGO PHONE: 992-2250 



SERVICE BULLETIN 



GAME: CALAXIAN 

SUBJ ECT: Alternate PC A082-91 370-000 



1. 
2. 

3. 

4. 



Due to a supply problem an alternate PC Board may be located at position 
8F, 8H,and4J,4K. 

The alternate PC Board replaces the Bi-directional Drivers 8216, 8304, 
and 74LS245. (8F, 8H, 4J , 4K, 9B, and 5J ). 

The ICs on the alternate PC Board are 74LS244 and 74S00. 

The alternate PC Board can be removed and ICs 8216, 8304, and 74LS245 
can be used in the proper location. 



Andy Ducay 
Service Manager 



AD/dc 
8/7/80 



41 



CABLE - M/DCO 
TftfX NO. 72-1596 




m^^% ^%#\ Pi^ONE: AREA CODE 312 451-1360 

MIDWAY MFG. CO- ^,^^^^^ p^one: 992.2250 

A BALLY COMPANY 

10750 W. GRAND AVENUE • FRANKUN PARK, ILL 60131 



June 5, 1980 

SERVICE BULLETIN 

GAME: Galaxian 

SUBJECT: When Ram Test reads Bad Ram #2 and Rams are Good, 

************************************************************ 
PROBABLE REMEDY 

1 . Replace Bi-Directional Driver at location 9-B or 5-J {74C245). 

2. Alternate chips 821 6 and 8304 may be used as replacements. 

3. Refer to Galaxian Parts and Operating Manual component layout page 
#20 for alternate locations. 



Andy Ducay 
Service Manager 



AD/dc 



42 




MIDWAY MFG. CO.— 

A BALLY COMPANY 

10750 W. GRAND AVENUE • FRANKUN PARK, ILL 60131 



CABLE - MIDCO 
TELEX NO. 72-1596 

PHONE: AREA CODE 312 451-1360 



CHICAGO PHONE: 992-2250 



November/, 1980 

SERVICE BULLETIN 

SUBJECT: MONITOR'S MIDWAY GAMES 

******* **:|c***************************** *************** ****** 

MANUFACTURE MODEL NO. GAME 

WELLS GARDNER 19K4500 (19") GALAXIAN UR 

WELLS GARDNER 19K4601 (19") GALAXIAN UR & CT 

ELECTROHOME G02 (25") GALAXIAN UR 

ELECTROHOME G07-901 & 904 UPRIGHT & COCKTAIL 

ELECTROHOME V-17 (15") SPACE ZAP, SPACE ENCOUNTERS MINI 

WELLS GARDNER V1001 (19") SPACE ZAP & SPACE ENCOUNTERS 

MOTOROLA M-500 (19") SPACE ZAP & SPACE ENCOUNTERS 

ELECTROHOME G07 (13") PAC-MAN, GORF & RALLY-X 



Andy Ducay 
Service Manager 



AD/dc 



43 



CABLE - MIDCO 
TELEX NO. 72-1596 




a^^^^ ^%^\ PHONE: AREA CODE 312 451-1360 

twl I mJ Vr /I f fri ■ W ■ w w- ch/cago phone.- 992-2250 

A BALLY COMPANY 

10750 W. GRAND AVENUE • FRANKUN PARK, ILL 60131 



SERVICE BULLETIN 

CAME: GALAXIAN, PAC-MAN & CORF 

SUBJ ECT: Electrohome 19" Color Monitor 

************************************************************ 

Static convergence (in the center of the monitor) is achieved by nnanipulating 
four magnets located on the neck of the CRT nearest the base of the tube. The 
middle pair of rings adjust the red and blue Crosshatch. The rear pair of rings 
adjusts the blue/red to the green Crosshatch lines. Dynamic Convergence is 
handled by tilting the yoke up, down, left and right, then securing it with 
wedges. Refer to the game schematic for Diagnostic Tests that generate 
Crosshatch and background colors. 

A. Tilt the yoke up, down, left and right to achieve convergence around the 
edges. Secure with one temporary wedge. 

B. Rotate the center rings to adjust the red and blue seperation 

C. Rotate the rear rings to adjust the magenta (red-blue) and green seperation; 
when best results are obtained, seal the rings with nail polish. 

D. Remove the temporary wedge from the yoke. Tilt the yoke again to adjust 
the edges of the screen for minimum seperation and insert three new wedges. 
These should have adhesive added to hold them permanently. 

See figure #1 . 



Andy Ducay 
Service Manager 



44 



FIGURE 1 



CRT 







ir?1 




It' Blue 




f- 


^ 


i 








f 




^^ 


tr 



(FRONT VlEWl 



Let the red ond blue lines come In line toy 
turning two 4-pole mognets. 



Green 



Around 
centre 




m 




(FRONT VIEWl 



Let the green and magenta lines come in line 
by turning two 6-pole magnets. 



PURITY RINGS 

RED 8c BLUE SEPARATION 

MAGENTA 8t GREEN SEPARATION 



LOCKING RING ON SOME MODELS 
Red-^ Gf ^ B lue 



Blue-f... ^ 
Green- 



Red- 



r¥TA 



(FRONT VIEW) 



"V 



LV^CJ 



-^Red 
Green 

Blue 



Blue Green Red 
Tilting the yoke upward will move the lir>es 
0$ shown with the arrows. 



Green 



Blue 



BHje^f^ Red 




Tilting ttie yoke to the right will move the 
lir>es as shown with the arrows. 



45 




MIDWAY MFG. CO.— 

A BALLY COMPANY 

10750 W. GRAND AVENUE • FRANKLIN PARK, ILL 6013? 



CABLE - M/DCO 
TELEX NO. 72-1596 

PHONE: AREA CODE 312 451-1360 



CHICAGO PHONE: 992-2250 



SERVICE BULLETIN 

GAME: CALAXIAN 

************************************************************ 

1. Proper video cable wire sequence for interface PC, Wells Gardner color 
monitor 19K4500. (See Figure #1) 



SYNC 



RED GUN 



GREEN GUN 



BLUE GUN 



r r r h' 'h H 



G-R GRND 



MONITOR INTERFACE 



L _ ,- J 



"CALAXIAN" 

MIDWAY MFG, CO. 

10750 W.GRAND AVE. 

FRANKLIN PARK ILL. 60131 



Figure #1 



NOTE: The 19K4500 is used only in upright gannes. 



46 



2. Proper video cable wire sequence for interface PC, Wells Gardner color 
monitor 19K4601 . (upright) (See Figure #2) 



-; r r r r 'h 



"CALAXIAN" 
MIDWAY MFC. CO. 



I MONITOR (HTEflFACE 



L _ ,_ -I 



Figure #2 

NOTE: The cocktail table main cable is wired for the Electrohome monitor and 
must be altered when installing a Wells Gardner monitor. (Same wire 
sequence as above) 



47 



3. Proper video cable wire sequence for interface PC, Electrohome 19" color 
monitor G07 - 901 & 905 (upright & cocktail table). (See Figure #3) 



MAIN CABLE 



W-Y 



Y-B 



KEY 



R-W 



G-R 



0-R 




ADAPTOR 



UPRIGHT ONLY 



Figure #3 



R-W 



W-Y 



Y-B 



G-R 



0-R 



O-R 



INTERFACE PC 



NOTE: 1. The adaptor Jack PC A080 - 91106 is used in upright games for 
proper wire sequence. 

2. The cocktail table wire sequence if for the Electrohome Monitor. 



R-W 



W-Y 



Y-B 



C-R 



O-R 



0-R 



MAIN CABLE (TABLE) 



48 



4. Proper video cable wire sequence for interface PC, Electrohome color 
monitor. C02 - 25 inch (upright). (See Figure #4) 




"CALAXIAN" 

MIDWAY MFC. CO. 

10750 W. GRAND AVE. 

FRANKLIN PARK, ILL. 60131 



Figure #4 



NOTE; Due to cable changes and other modifications the 25 inch color monitor 
must be used. 



49 



Proper video cable wire sequence for interface PC, Electrohome color monitor 
C07 CBO - 904. (upright & cocktail table). (See Figure #5) 




NOTE: 



FROM MAIN 
CABLE 



R-W 


1 
2 
3 
4 
5 
6 




W-Y 




Y-B 




C-R 










MAIN PC 




G07-CB0 



REMOVE 0-R 



Figure #5 



1 . The adaptor jack PCA080 - 91106 is used to eliminate wire changes in 
upright games. 

2. Not used in cocktail table games. (PCA080 - 91106). 

3. The orange- red must go to 3 pin jack as shown. 



AD/dc 



Andy Ducay 
Service Manager 



50 




MIDWAY MFG. CO.— 

A BALLY COMPANY 

10750 W. GRAND AVENUE • FRANKLIN PARK, til. 60131 



CABLE - MtDCO 
TELEX NO. 72-1596 

PHONE: AREA CODE 312 451-1360 



CHICAGO PHONE: 992-2250 



SERVICE BULLETIN 



CAME: PAC-MAN, CORF AND RALLY-X 



** 



:K*:Ie******************************************************* 



1. PROPER VIDEO CABLE WIRE SEQUENCE FOR WELLS GARDNER 
COLOR MONITOR 19K4606 
SEE FIGURE #1 



MONITOR 

INTCRFACC 



L _ J 


~1 












.^^ 


' .^* 


«- 


W 






1 o— 


W-BRN 






V-B 


u^ 




' 3 


C-k 


-i« 






FIGURE #1 





NOTE- PAC-MAN, CORF AND RALLY-X UPRIGHT GAMES CAN USE 19" 
ELECTROHOME OR WELLS GARDNER COLOR MONITORS. 

MINI GAMES CAN USE THE G07-13 ELECTROHOME COLOR 
MONITOR. 



ANDY DUCAY 
SERVICE MANAGER 



51 




MIDWAY MFG. CO.— 

A BALLY COMPANY 

10750 W. GRAND AVENUE • FRANKUN PARK, ILL 60131 



CABLE - M/DCO 
TELEX NO. 72-1596 

PHONE: AREA CODE 312 451-1360 



CHICAGO PHONE: 992-2250 



SERVICE BULLETIN 



GAME: PAC-MAN, GORF AND RALLY-X 

************************************************************ 

1. PROPER VIDEO CABLE WIRE SEQUENCE FOR ELECTROHOME 19'' 
COLOR MONITOR G07-CB0 

SEE FIGURE #1 



0-R 



o 



d^ 



G-R 




FIGURE #1 



NOTE PAC-MAN, GORF AND RALLY-X COCKTAIL TABLES USE ONLY 
ELECTROHOME MONITORS G07-CB0. 



ANDYDUCAY 
SERVICE MANAGER 



52 



CABLE - M/OCO 
JELBX NO. 72-1596 




PHONE: AREA CODE 3)2 451-1360 

MIDWAY MFG. CO- ch/cago phone.. 992.2250 

A BALLY COMPANY 

?0750 W. GRAND AVfNUE • FRANKLIN PARK, ILL 60131 



April 14,1980 



SERVICE BULLETIN 

GAME: Galaxian 

SUBJECT: Wells Gardner 19 inch Color Monitor 



**** 



********************************************************* 



The four controls contrast, brightness, color and tint are not used. These 
controls are located in the upper right side of the monitor panel. 

The brightness control is located on the interface P.C. Board. (85-X0134- 
001) 



Andy Ducay 
Service Manager 



53 



CABLE - MIDCO 
TELEX NO. 72-1596 




_^ mm^f% f^gX PHONE: AREA CODE 312 451-1360 

iWi 1 1/ Vr At f Irf r U ■ w \/» Chicago phone-. 992-2250 

A BALLY COMPANY 

10750 W. GRAND AVENUE • FRANKLIN PARK, ILL 60131 



July 1,1980 



SERVICE BULLETIN 



GAME: GALAXIAN 

SUBJ ECT: ELECTROHOME GO-2 COLOR MONITOR 

MODIFICATION: AS OF SERIAL NO. 20509 



1 . Due to a supply problem the 25 inch Electrohome monitor will now be used in 
upright games. 

2. See figure #1 for additional and deleted parts. 

3. The modification prevents using the 19 inch monitors as replacements. 



Andy Ducay 
Service Manager 



AD/bp 



54 



Figure #1 



New Part No. 



Name 



Replaces Part No. Comment 



0866-0091 3-OOXF 

0866-00912-0000 
0866-00507-0000 
0866-00508-0000 

0866-00914-0000 

A866-00094-0000 

0866-00127-0000 
-0100 

0866-00128-0000 

0866-00129-0000 

0866-00130-0000 



Display Glass..... 0866-00900-OOXF New Part uses the same 

blank glass. 

Tinted Plexi 0851-00904-0000 

Cabinet 0866-00500-0000 

Monitor Support 2 Req'd Was not required on 

standard game 
5h jgl^ Was not requireq on 

standard game. 

Monitor Brkt. Assy Was not required on 

standard game. 

Side Mtg. Brkt Was not required on 

standard game. 

Back Shipping Brkt Was not required on 

standard game. 

Front Shipping Brkt Was not required on 

standard game. 

Support Brkt Was not required on 

standard game. 



These parts will be deleted: 
Part No. Name 



0866-00904-0000 
0866-001 11 -OOXF 
0866-00120-0000 



T.V. Bezel 

Monitor Shipping Brkt. 

Chassis Brace 



These parts will continue to be used: 
Part Ng^ Name 



0866-00124-0000 
0866-001 26-OOXF 



Re-lnforcingBrkt. 2 Req'd. 
Monitor Brkt. 2 Req'd. 



NAME 



25" Color Monitor 

2.5V R-G-B-lnterface P.C. 

(Modified) 

2.5V R-G-B-lnterface 
Schematic 

Galaxian Wiring Schematic 

Low Voltage Cable Assy. 

High Voltage Cable Assy. 

Monitor Service Literature 

TAG-"Modified 2.5V R-C-B 
Interface" 

TAG-''Unit Supplied with 
25" Monitor'' 



Replaces 
Part Number 



Quantity 



New 
Part Number 



17-00003-0294 
Not Used Before 

Not Used Before 

M051-0866-B003 
A866-00054-0000 
A866-00051-0000 
Not Used Before 
Not Used Before 

Not Used Before 



1 A866-00099-0000 

1 A084-91304-B162 

1 M051 -00866- A027 

1 M051-00866-C003 

1 A866-00096-0000 

1 A866-00095-0000 

1 M051 -00866- A024 

1 M051 -00866- A026 

1 M051 -00866- A025 



Delete: MT82 MTOO-00082-0000 



55 




MIDWAY MFG. CO.— 

A BALLY COMPANY 

10750 W. GRAND AVENUE • FRANKLIN PARK, ILL 60131 



CABLE - MIDCO 

TELEX NO. 72-1596 



PHONE: AREA CODE 312 451-1360 



CHICAGO PHONE: 992-2250 



February 11,1980 



SERVICE BULLETIN 



GAME: 



Galaxian 



************************************************************ 

MODIFICATION: 

To bench test a Galaxian logic board with a black and white monitor, the 
following change must be made (see Figure #1 ) : 



+7VDC 



T RED 



lOMF(lOV) 

+ t 1 — 



16 CRN 



TO 



LOGIC ^^ 
BOARD 



U BLUE 



17 SYNC 



VIDEO 



^#1 



-WVNAAA/ — 
470 



IN 4148 
GRND 



330 



5.1V 



TO 

B&W 

MONITOR 



rj 



-^n 



FIGURE #1 



Note: The top and bottom may be slightly distorted due to horizontal 
synchronization. 



Andy Ducay 
Service Manager 



AD/jk 



56 




MIDWAY MFG. CO.— 

A BALLY COMPANY 

10750 W. GRAND AVENUE • FRANKLIN PARK, ILL 60131 



CABLE - M/OCO 
TELEX NO. 72-7596 

PHONE: AREA CODE 312 451-1360 



CHICAGO PHONE: 992-2250 



July 30, 1980 



SERVICE BULLETIN 



GAME: EXTRA BASES 

SUBJ ECT: BALL CONTROL UNIT PC A082-91323-E000 

************************************************************ 

MODIFICATION; 

1. The Extra Bases Ball control PC A082-91323-E000 can be used on Shuffle 
Board or Bowling Alley without any modification. 

2. The Shuffle Board and Bowling Alley Ball Control unit PC A082-91323- 
EOOO can be used on Extra Bases with the following modification 

A. Change the two 51 K resistors to 33K. 

B. Change the two 270K resistors to 51 K. 

3. Check Electrically. 



Andy Ducay 
Service Manager 

AD/dc 



57 



CABLE - M/DCO 
TELEX NO. 72-1596 




^%^\ PHONE: AREA CODE 312 451-1360 

MIDWAY MFG. CO- ^^^^^^^ p^one.. 992-2250 

A BALLY COMPANY 

;0750 W. GRAND AVENUE • FRANKLIN PARK, ILL 60131 



July 1,1980 



SERVICE BULLETIN 



CAME: EXTRA BASES 

SUBJ ECT: Upright and Cocktail game Card Rack Ram Cards 

(PC A082- 91356 -BOOO) 

************************************************************ 

NOTE FOLLOWING; 

1. In all upright games the Ram card must be plugged into jack J-1. 
(J -2 is empty). 

2. In all cocktail games we have two Ram cards which are plugged into jack 
J-1 and J -2. These Ram cards are interchangeable. 



Andy Ducay 
Service Manager 

AD/dc 



58 




CABLE - M/DCO 
JBLEX NO. 72-1596 



^^ /%/* PHONE: AREA CODE 312 451-1360 

Iwl f 1/ Vw M f Irl ■ i> ■ W W ■ CH/CAGO PHONE: 992-2250 

A BALLY COMPANY 

J0750 W. GRAND AVENUE • FRANKLIN PARK, ILL 60131 



December 26, 1979 
SERVICE BULLETIN 

GAME: Deluxe Space Invader 

sH* ************************************************* ********** 

ATTENTION: 

A. For proper game operation in play mode, switch #2 must be in the "on*' 
position. PC A082-90700-A000. 

B. The record name feature can be tested, or the high score can be raised as 
follows: 

HIGH SCORE AND NAME DISPLAY PROGRAM 

1. Place switch #2 located on Game Logic Board (P.C A082-90700- 
AOOO) in **OFF'' position. 

2. Close coin switch to display one credit on screen. 

3. Depress One Player Select Button. *Treset Mode" will be dis- 
played on screen. 

4. Depress One Player Select Button again to increase score until pre- 
vious Hi Score is beaten. 

5. Depress Fire Button to start game. When all laser bases have been 
destroyed, the alphabet will be displayed on the screen. A new 
name may now be programmed on the screen as indicated by instruc- 
tions on Control Panel. 

6. Place switch #2 located on Game Logic Board (P.C. A082-90700- 
AOOO) in "ON*' position to reestablish game mode. 

Note: To reset Hi-Score (to 5000) and Name Display, depress "ON- 
OFF" switch. 

Andy Ducay 
y^Q.jI^ Service Manager 



59 




CABLB - MtDCO 
reiEX NO. 72-7596 



^/\ P HONE: ARC A CODE 312 451-1360 

MIDWAY MFG. CO. ch,cago phone: 992-2250 

A BALLY COMPANY 

?0750 W. GRAND AVENUE • FRANKLIN PARK, ILL 60131 



April 14,1980 

SERVICE BULLETIN 

GAME: Space Invaders Deluxe 

SUBJECT: Game Board Auxiliary, PC A080-91366-A000 

1. Due to a supply problem, we are temporarily out of the Custom LC. 
MB14241 on the Game Board PC A082-90700-A000. 

2. The plug in Auxiliary PC Board will be used until the Custom bit shifter 
is available again. 

3. The Auxiliary PC Board has 4 - 25S10 bit shifters and 4 - 74175 latches. 



Andy Ducay 
Service Manager 



60 



CABLE - MIOCO 
TBIEX NO. 72-1596 




^%^% P^ONE: AREA CODE 312 451-1360 

MIDWAY MFG. CO. ch/cago phone,- 992^2250 

A BALLY COMPANY 

10750 W. GRAND AVENUE • FRANKLIN PARK, ILL 60131 



May 16, 1980 

SERVICE BULLETIN 

CAME: Space invaders Deluxe 

SUBJ ECT: Proms and Roms 

************************************************************* 

1. Due to a supply problem the Invader program may be all 2716 Proms or all 
9316 Roms. 

2 On occasion the Invader program will be a mixture 2716 Proms (single supply) 
and 9316 Roms. The 2716 Proms will have pin #21 cut with a jumper wire 
between pin #21 and pin #24. 

3. When all 2716 Proms are single supply type the Mother Board Strapping is 
different from 9316 and 2716 multiple type. 



Andy Ducay 
Service Manager 



AD/dc 



61 



CABLE - MIDCO 
TELEX NO. 72-1596 




llilfmA#ilV tUtCf^ f^f% PHONE: AREA CODE 312 451-1360 

iWt 1 1/ wwn J IwK r \3I ■ w %/■ ch/cago phone.- 992-2250 

A BALLY COMPANY 

10750 W. GRAND AVENUE • FRANKLIN PARK, ILL 60131 



SERVICE BULLETIN 

GAMES: 18 Wheeler, Bowling Alley, Space Invaders and 

Blue Shark 

SUBJECT: Prom and Rom Identification 

1 . The game number will identify which game Proms and Roms belong to, 
as listed below: 

18 Wheeler M-653-H 
Bowling Alley M-730-H 
Space Invaders M-739-H 
Blue Shark M-742-H 

Midway-Game-Locations 

NOTE: The game number of each game can be found on the cover of the 
parts catalog. 



Andrew Ducay 
Service Department 



AD:dc 

07/2/79 



62 



CABLE - MtOCO 
TELEX NO. 72-1596 




EWt 1 1/ Vr M f iWt r \Jlm \^%Jm CHICAGO PHONE: 992-2250 

A BALLY COMPANY 

10750 W. GRAND AVENUE • FRANKLIN PARK, ILL 60131 



SERVICE BULLETIN 

GAME: Space Invaders (Up-right and cocktail table) 

SUBJECT: Prevent random garbage and extra credit condition 

************************************************************ 

MODIFICATION: 

1. All A084-90700-739-D game boards have three capacitors which are 
not grounded (RRC Network). 

2. Refer to Figure #1 for the location of 1 .0MF-25V capacitors. 

3. On rear side of game logic board, solder jumber wires from negative side 
of capacitor to ground (See Figure #1). 

4. Check coin and control circuits electrically. 



Andrew Ducay 
Service Manager 



AD/r 
07/16/79 



63 



FIG. #1 



[ tin I 

< Trs, — I b sw 



e: 



Mil I 



sn 



~g^ 



CONNECT JUMPERS 
ON REAR SIDE 
AS SHOWN HERE 



) 7414 



f m &tP ' 



) 7m 



CXI] 




5 74161 



r*NT. [-5sir 1 



) 74161 






iboicl 



CONNECT THE 
NEGATIVE SIDE 
OF THESE 3 
CAPACITORS 
TO GROUND 



) LM390C 



I ?*t I 

1 I20K I 



: 1^^- 

^ MYLAR. 



76477 



I ISOK ) 



OE, 



a,0 






CLCNJ 





r 2.2H I 



I 330A I 
lllN4004 



d 



■oy-n^o 



i~ir— I 



5 74153 



)74L5!5I 



74175 



)74L5I5I 



:> 74153 



)74LS15I 



3 74i75 



) 74 LSI 51 



) 71153 



)74L5l5t 



} 74174 



)74LSI5I 



-jf 1 * ;).iMr. yy. cewamk. 



) 74153 



)74LSI51 



) 74174 



)74LSI5I 



) 7442 



) 74174 



74174 



MYLAW. 



) 7404 



7417 



7417 



t [iO»^t;_2V 



! t^ott I 



■r ">iMF. 



D 7411 



) 55G 



MYLAK. 



12 ■>■ |iOMf. 



OE. OHi izr 



.OlMF. ^t 



0.1 MF. 
IIOOV. 

■'mylaw. 



HlW4i4b I 
[ltN4l4o I 



CMKl] 

I iucjk""] 




)LM3900 



n-Q-Q->n 1=^^^ 

^0.4TMF, H"'4t 4g i 



J 401C 



1 6fc6x I 



I )'W4 l4e 1 

I f80K 1 






Cj^ 



i frBOK 






)LM39uO 



O^ 



)LM3^XX) 



J30Pf. 

■^a"AMic. 



I ^-6^ 1 



)LM3900 



^lOMf. 
TANT. 



I 220K I 



I K)OK i 



I lOOK I 

--OJMf. 



[ IOk '] 






I WOx I 



1_2JK_I 



sO-"*. 



I- (ioMf ZSV \ - 



i l ii*4>48 I 



I^ OK I 



4?o ^-f, 

|"tO OK~ l 
niM4HB" '| 



)LN'39C'U 



JiOOV. 
MtLAR. 



DO.IMf. 
100¥._ 
MYLAR. 



Sl3 

.CW^/F. I 4.7M I 

^MYLAW. 



-^TANT. 
^TANT. 

~^. ] 



•Tai^l 



I feftoiT" 



O.IWF. 

luOV. 
MYLAR. 

I 'OOH i 

I *TOiH 1 



)Lk:-) vK" 



- 470Hf. 
CCDAWIC. 



I 4 7f ■« I 



'iC^ I Lj^ 



•^[■OMF. 2Sv"l 



^tOK I I |tH4l4e I 



_.Q.IMF, 

_;joov. 

MYLAR, 



^ .7 



ilOMF. 

)25V. 
'tant. 



.O.IMF. 
'lOOV. 
MYLAR. 



nyjT 



I 4 70K 1 



OK I 



r looK 



j-jlQU'f 2 5Y~ !- 

Lioa.J 



} 4006 



iLM39jO 



^30^'F. 
- lERAMIC. 






I [ m4l4f 1 



SPACE INVADERS 
A084-90700-D739 



Zl 



I 3.31* 

1 I.SM 
I £2W~ 



nM«; 



4030 



--,0.1 MF 
J iOOV. 
WYLAH. 






_ .OOlMF. 

wriAR, 



64 




CABlf - M/DCO 
TELEX NO. 72-1596 



_^ -« mmpg% f^f\ PHONE: AREA CODE 312 451-1360 

IWa f 1/ wwn J Irf ■ w » w w» ch/cago phone .- 992-2250 

A BALLY COMPANY 

10750 W. GRAND AVENUE • FRANKLIN PARK, ILL 60131 



February 13, 1980 



SERVICE BULLETIN 



GAME: Space Invaders 

CONDITION: Garbage Lines In Video and Extra Credit 

************************************************************* 

POSSIBLE REMEDY 

1. Check game board for proper RRC capacitor grounding. (P.C. A804- 
90700-D739). 

2. Clean game board edge connector and inspect Mother board 72 pin 
connector. 

3. Measure +5, +12 and -5 voltages at edge connector of Mother board. 
Adjust voltages using pots on Pov^er Supply. 

4. Replace possible heat sensitive TI-8080 CPU v^ith 791 9 date code. 

5. Add a Cor-Com line filter. (0017-00003-0114) 

6. Inspect soldering of bit shifters on game board. (25S1 or 741 51 ) 



Andy Ducay 
Service Manager 



AD:jk 



65 




MIDWAY MFG. CO.— 

A BALLY COMPANY 

10750 W. GRAND AVENUE • FRANKLIN PARK, ILL 60131 



CABLE - MIOCO 
TELEX NO. 72-1596 

PHONE: AREA CODE 312 451-1360 



CHICAGO PHONE: 992-2250 



SERVICE BULLETIN 



May 14,1979 



GAME: 



SUBJECT: 



Space Invaders Upright and 
Cocktail Table 

Dip Switch Settings, Game Logic 
Board (PC-A084-90700-739) 



************************************************************ 

1. Upright Games 

A. Switches 5, 6, 7 and 8 must be in on position. 

2. Cocktail Table 

A. Switches 5, 6, 7 and 8 must be in off position. 



Andy Ducay 
Service Manager 

AD:jk 



66 



CABLE - MIOCO 
TELEX NO. 72-1596 




■ilfff\IJ/ilV tmCf^ f^f% PHONE: AREA CODE 312 451-1360 

IW f 1/ WWr\ J twt ■ U ■ \^%Jm CHICAGO PHONE: 992-2250 

A BALLY COMPANY 

10750 W. GRAND AVENUE • FRANKLIN PARK, ILL 60131 



December 11,1978 

SERVICE BULLETIN 

GAME: Space Invaders 

SU BJ ECT : Game Logic Board 

:^=C********************************** ************************* 

MODIFICATION: 

1. Due to a supply problem the 25S10 shifter I.C.'s have been replaced 
with 74151 data selector multiplexers. 

2. Game logic board P.C. A084-90700-B000 have four 25S1 I.C.'s. 

3. Game logic board P.C. A084-90700-C00 have eight 74151 I.C.'s. 



Andy Ducay 
Service Manager 



AD:jk 



67 



CABLE - M/DCO 
TELEX NO. 72-1596 




tkMMr\tMiii\f tkMCf^ f^f\ P^Ot<^- Afi^A COPE 3T2 45) -1360 

iWl f £/ WWn W iWl r \Mm \^\0m CHICAGO PHONE: 992-2250 

A BALLY COMPANY 

10750 W. GRAND AVENUE • FRANKUN PARK, ILL 60131 



SERVICE BULLETIN 

GAME: Submarine 

************************************************************* 

ATTENTION: 

The target ship explosion light zero switch and sink target ship zero switch 
must be closed for proper game operation. If either switch is open, dirty con- 
tacts or loose cam set screws the coin counter will pulse and the game will 
stay in the game over mode. 



Andy Ducay 
Service Manager 



AD:jk 
11/26/79 



68 




MIDWAY MFG. CO.— 

A BALLY COMPANY 

10750 W, GRAND AVENUE • FRANKLIN PARK, ILL 60131 



CABLE - M/DCO 
TELEX NO. 72-1596 

PHONE: AREA CODE 312 451-1360 



CHICAGO PHONE: 992-2250 



SERVICE BULLETIN 

GAME: 18 Wheeler 

CONDITION; Premature Game Over (games serial #101 to 300) 

************************************************************ 

MODIFICATION: 

1. Solder 0.1 MFD disc capacitor to the mother board PC A082-90400- 
BOOO, location J-4. (See Figure #1 ) 

2. Check out game electrically. 



AD/r 
07/27/79 



Andrew Ducay 
Service Manager 




(Figure #1 




MIDWAY MFC, CO.— 

A BALLY COMPANY 

10750 W. GRAND AVENUE • FRANKLIN PARK, ILL 60131 



CABLE - M/OCO 
TELEX NO. 72-1596 

PHONE: AREA CODE 312 451-1360 



CHICAGO PHONE: 992-2250 



18 WHEELER'; BACK DOOR REWORK 
TO IMPROVE CABINET VENTING 



CUT OUT VENT 

AREA RIBS AS 

SHOWN 



RE-MOUNT EXISTING VENTS 
FLUSH WITH 6 x Vi SCREW 
(0017-00101-0014) 




70 



'18 WHEELER" PROJECTOR FANREWORK 



Installation Instructions 

1. Remove 6 screws holding projector light shroud to 
pan and hub assembly. 

2 . Remove old fan and platform . 

3. Assemble bracket (Item 1) to new exhaust fan (Item 2) 
as shown using self threading screws (Item 3). 

4. This assembly gets fastened using the game holes and 
screws as the old fan platform. 

5. Drill 2, 3/16 dia. holes in bottom of shroud as per 
dimensions on shroud rework detail. 

6. Replace projector light shroud by first assembling 2 
self threading screws through fan shroud to the fan 
mounting bracket (Item 1) and then the 6 remaining 
screws through the shroud to the pan and hub 
assembly. 



KIT PARTS LIST CONSIST OF 



Item 
1 
2 
3 



Description 
Bracket 

Exhaust Fan Assy. 
#8-32x5/16 Sit. 
Hex. Hd. Mach. 
Screw 



Part No. 



0653-00191-0000 
A653-00074-0598 
0017-00101-0598 



1 
1 
4 




^DIA. H0LE(2) 



'~ \^^^^2'-\ 



EXISTING 
HOLES 




'16 

SHROUD REWORK DETAIL 



M051-00653-A028 



71 



CABte - MIOCO 
TBLEX NO. 72-1596 




mmmm^mMgm^^ Mil C /^ ^ f\ PHONE: AREA CODE 312 451-1360 

iWl f 1/ Ww/\ J IwB r\Mm X^X^m CHiCAGO PHONE: 992-2250 

A BALLY COMPANY 

10750 W. GRAND AVENUE • FRANKLIN PARK, ILL 60731 



February 11 , 1 980 

SERVICE BULLETIN 

GAME: Super Speed Race and Sea Wolf II 

CONDITION: Reversed Image on GO-2 Color Monitor (25") 

************************************************************* 

Both Super Speed Race and Sea Wolf II use the Electrohome GO-2 color 
monitor. In Sea Wolf II a mirror reverses the image from the monitor, but in 
Super Speed Race the monitor is viewed directly. 

If the monitor in either game is changed and the image comes up back- 
wards, switch the yellow and green wires at pins #1 and #2 on the round male 
connector coming from the yoke assembly to the geometry PCB #82-230010- 
05. 

Pin #1 should be yellow and pin #2 green for "direct** viewing. 



Bob Norton 
Service Technician 



BN:jk 



72 




CABLE - M/DCO 
TELEX NO. 72 1596 



Jliffm4/ilV tkMCf^ f^f\ ^^O^^'- ^^^^ <^OD^ 312 45} -1360 

Mwl 1 1/ Vr M f Irl f U ■ \# !/■ ch/cago phone.- 992-2250 

A BALLY COMPANY 

]0750 W. GRAND AVENUE • FRANKLIN PARK, ILL 60131 



SERVICE BULLETIN 

GAME: SEAWOLF II, EXTRA BASES, SPACE ZAP & CORF 

SUBJ ECI: Custom chip identification (I/O, Address, and Data) 

************************************************************ 

The following numbers will identify the special custom chips used in Seawolf 
II motherboard (PC 084-90002-B-625): 

I/O 2720 or 0066-1 1 7XX 

Address 2719 or 0066-1 15XX 

Data 2721 or 0066-1 16XX or 2860 



Andrew Ducay 
Service Manager 



AD/r 

07/10/79 



73 




MIDWAY MFG. CO.— 

A BALLY COMPANY 

10750 W. GRAND AVENUE • FRANKLIN PARK, HL 60131 



CABLE - M/DCO 
mfX NO. 72-1596 

PHONE: AREA CODE 312 451-1360 



CHICAGO PHONE: 992-2250 



SERVICE BULLETIN 



SEAWOLF II 



ELECTROHOME COLOR MONITOR (25") 



SYMPTOM: TV loses anode voltage, 30,000 VDC approximately, 

after 5 or 6 seconds. 

CAUSE: On the Electrohome color monitor, the high voltage is 

protected by an overvoltage protection circuit. This 
circuit is probably too sensitive, or the 125 volt DC 
power supply is faulty. 

SOLUTION : First determine if 1 25 volts DC is available on the power 

supply PCB. C940 could make it more sensitive if it has 
excessive leakage. Check R928B 680k .5 watt, if it*s 
missing or clipped out, replace it. If R928B 680k is being 
used, change this resistor to one with a value of 510k 
.5 watt. If it is still too sensitive, change resistor to 470k 
.5 watt. 



REACTANCE 
CONTROL 






HOR. DRIVER 



Q926 




_«• 4- 2?c V 



CUPPEO i3 'TOURED PDR , 
R930 AOkJUSTMeNT 

■I T FACTORY i 

m NOMINAL ^vALUE 
FiC TCRYS£L£CTED 



Andy Ducay 
Service Manager 



AD:ih 
05/78 



74 




MIDWAY MFG. CO.— 

A BALLY COMPANY 

10750 W. GRAND AVENUE • FRANKLIN PARK, ILL 60131 



CABLE - M/DCO 
reiBX NO. 72-1596 

PHONE: AREA CODE 312 451-1360 



CHICAGO PHONE: 992-2250 



GAME: 



SERVICE BULLETIN 



Rotation VIII 



CONDITION: Power reset failure when turning game on causing coils 

to pulse or stay energized. 

************************************************************ 

MODIFICATION: 

1. Replace the 2.7 volt zener in power reset circuit with a 7.5 volt zener. 

2. Cut trace at pin 4 LM339 location A2-3. (See Fig. 1 ) 

3. Solder a 1 K resistor from pin 4 LM339 to the cathode of the 7.5 volt 
zener. (See Fig. 1) 

4. Solder a IN4148 diode from pin 4 LM339 to ground (pin 12 LM339). 

5 . Check game out electrically. 



Andrew Ducay 
Service Manager 



AD:jk 
05/3/79 



75 



FIG. #1 



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CABLE - M/DCO 
TELEX NO. 72-} 596 




tkM M r\tAi Jk^f tmCf^ f^f\ f'^O^^'^ ^^^^ CODE 3n 4S}-}360 

IWK 1 1/ WwM J IWt r\Mm \^\Jm CHiCAGO PHONE: 992-2250 

A BALLY COMPANY 

10750 W. GRAND AVENUE • FRANKUN PARK, ILL 60131 



December 21, 1978 
SERVICE BULLETIN 

GAME: Rotation VIII 

SUBJECT: Logic Board A084-91313-G627 (Sound) 

*********************************************************** 

When changing from an 'T'* board to a "G" board, cut the orange or yellow- 
green wire at power supply jack "C" pin #6. (Prevents damage to amplifier 
I.e. LM377.) 



Andy Ducay 
Service Manager 



Note: When changing from a "G" board to an "F" board, the orange or 
yellow-green wire must be connected at "C" jack, pin #6. (For 
proper sound.) 



AD:jk 



77 



CABLE - M/DCO 
TELEX NO. 72- J 596 




JUIffmii/AV tmCf^ f^f% PHONE; AREA CODE 312 451-1360 

IwK f £/ rr/l f Irf r U ■ w wa ch/cago phone: 992-2250 

A BALLY COMPANY 



J0750 W. GRAND AVENUE • FRANKLIN PARK, ILL 60131 



SERVICE BULLETIN 

V 



GAME: Bowling Alley 

SUBJ ECT: Rams, Proms and Roms 

*************************************************** 

The BOWLING ALLEY game microprocessor system has been programmed 
to detect a defective Ram, Prom and/or Rom. To utilize the test, proceed as 
follows: 

1. Set switch #8 to on position (A084-90700-C730). 

2. Activate coin door tilt switch. 

3. The Ram test sequence will scan and vertical lines will appear. 

4. When all Rams are good, the scan will be continuous. 

5. When a Ram is defective, dark vertical columns will appear (refer to 
Figure #1 for method of locating a bad Ram). 

6. When Ram test is completed and all Rams are good, the T.V. screen will 
blank out to indicate a bad Prom or Rom by displaying letters locating 
it 

7. When Proms and Roms are good, the Ram scan will be continuous. 

8. Return switch #8 to off position (A084-90700-C730). 

9. The Ram scan will stop and game will return to normal when the tilt 
switch is activated. 

NOTE: Rams must be good before Prom and Rom test can be made. 



Andy Ducay 
Service Manager 

AD:jk 

3/2/79 

78 



GAME: 



SERVICE BULLETIN 



Bowling Alley 



SUBJECT: Figure One - Method of Locating a Bad RAM 

************************************************************ 



-H- 







RAM 
LOCATION 



15 14 13 12 11 10 9 8 15 14 13 12 1 1 10 9 8 

1. When one or more colunnns are nnissing or altered, this would indicate a 
RAM problem. 

2. Use Figure One TV display to determine location of faulty RAMs. 



AD/r 
12/27/77 



79 



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80 




MIDWAY MFG. CO.— 

A BALLY COMPANY 

10750 W. GRAND AVENUE • FRANKLIN PARK, ILL 60131 



CABLE - M/DCO 
TEtEX NO. 72-1596 

PHONE: AREA CODE 312 451-1360 



CHICAGO PHONE: 992-2250 



October 13, 1980 



SERVICE BULLETIN 

GAME: SEA WOLF \. 280Z. GUIDED MISSILE, LAGUNA RACER 

SUBJ ECT: 8516 & 2716 Prom Strapping Information (16K) 



1 . Refer to figure #1 for proper strapping of jumpers and capacitor removing or 
relocating. 

2. Cut pins #18 and #20 of each prom and jumper as shown in figure #2. 

3. Check electrically. 



FIGURE #2 



JUMPERS 



PROM 




PIN #20 



PIN#18 



REVERSE PIN #18 & 20 AS SHOWN 



Andy Ducay 
Service Manager 



81 




MIDWAY MFG. CO.— 

A BALLY COMPANY 

10750 W. GRAND AVENUE • FRANKLIN PARK, ILL 60131 



CABLE - MIDCO 
TELEX NO. 72-1596 

PHONE: AREA CODE 312 451-1360 



CHICAGO PHONE: 992-2250 



SERVICE BULLETIN 



GAMES: 



SUBJECT: 



Gun Fight 
Sea Wolf 
Tornado Baseball 

Power Supply P.C. 80-904 



What may look like a logic problem may be a power supply failure. 
Check the following; 

(1) +5V,-5V,and+12V. 

(2) The 24 pin jack for defective wiring or pin connectors (female and male). 

(3) Cold solder connections, capacitors, diodes, resistors, and transistors, 
(rear side). 

(4) Damaged printed circuit traces. 

(5) Loose parts on heat sink. 

(6) Make repairs and check game out electrically. 



AD:r 
09/30/76 



82 




MIDWAY MFG. CO.— 

A BALLY COMPANY 

10750 W. GRAND AVENUE • FRANKLIN PARK, ILL 60131 



CABLE - MIDCO 
TELEX NO. 72-1596 

PHONE: AREA CODE 312 451-1360 



CHICAGO PHONE: 992-2250 



SERVICE BULLETIN 

GAMES: Gun Fight, Sea Wolf, and Tornado Baseball 

CONDITION: Randonn errors appearing on TV screen. 

1. Garbage 

2. Lock-up condition 

3. False ram scan (Tornado Baseball) 

MODIFICATION: Add two .01 MFD capacitors to the mother board, 

PC 80-900; reset circuit (CPU) as shown below. 

1 . Solder .01 MFD capacitor between pin #10 and ground (-5 volts). 

2. Solder .01 MFD capacitor between pin #10 and +5 volts (VCC). 



GROUND 



PIN #10 
^ RESET CIRCUIT (ORN.) 




PC 80-900- D 
MOTHER BOARD 



+5 VOLTS 



AD:r 

10/05/76 



83 



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85 



CABLE - MIDCO 
JELBX NO. 72? 596 




_^ -- -__^ /*/> PHONE: AREA CODE 312 451-1360 

iWt f 1/ ¥r M I IW r U ■ W %/■ CH/CAGO PHONE: 992-2250 

A BALLY COMPANY 

]0750 W. OR AND AVENUE • FRANKLIN PARK, ILL 6013) 



MONITOR MANUFACTURERS 

MOTOROLA INC. 

Display Products 

455 East North Avenue 

Carol Stream, Illinois 60187 

Telephone: (312) 231-4400 

Chris Petri, Product Service Manager 

WELLS GARDNER ELECTRONICS CORP. 
2701 North Kildare Avenue 
Chicago, Illinois 60639 

Telephone: (312) 252-8220 

Norm Schumacker, Service 

ELECTROHOME LIMITED 
809 Wellington St. N. 
Kitchener, Ont. N2G4J6 

Telephone: (519) 744-7111 

Tom Van Gink, Program Co-Ordinator 



86 



Glossary of Computer Terms 

Silicon Valley - The region around Sunnyvale, California (south of San Francisco) is known as the 
birthplace and present capital of the microprocessor. Fairchild Instrument is considered as the 
pioneer company in this area with most of their engineers leaving and branching out to form com- 
peting companies such as Intel and Zilog. 

Hardware ■ The physical components of a system, i.e. transistors, capacitors, microprocessor, 
data chip, incput-output chip, address chip. 

Software - Can be best defined as the program, whether it be resident permanently as a fixed set 
of instructions as in ROM or inputed as data by the user. 

Bit - A word is one logical unit of information consisting of 4, 8, 12 or 16 bit (a bit is a binary digit, 
either 1 or 0, high or low). An 8 bit microprocessor requires 8 bits of data and the word size for an 8 
bit microprocesssor is therefore 8 bits. 

Byte - Eight bits are called a byte. 

Memory - That part of a system which is used to store both the programs which will execute on the 
processor, and the data which will be manipulated by the system. 

ROM - Read Only Memory is a device that has data permanently entered into it to be outputed on 
demand, a fixed set of instructions. 

RAM - Random Access Memory is a type of memory in which any byte can be accessed (that is, 
written into or read from) after any other byte. The random access capability of RAM makes it 
easier to use, and allows much faster operation. 

Address -The position or location of the word within the memory is called its address. 

LSI technology - Large Scale Integration technology allows the implementing of 1 to 15,000 tran- 
sistors on a single chip. 

CPU -The CPU (central processing unit) is basically a microprocessor. The CPU Is divided into two 
units, the ALU (arthimetic logical unit) and the CU (control unit). The function of the ALU is to per- 
form arithmetic and logical operations on data passing through it. The CU will sequence the 
operation of the entire system. The control unit fetches, decodes and executes successive 
instructions stored in the memory system. 

Microprocessor - An LSI component which implements the functions of an arithmetic-logical-unit 
plus its associated control unit in a single chip. 

Register - A fundamental unit inside a micoprocessor which is a specialized memory. It can be 
thought of as a blackboard where data is written so it can be easily accessed and changed. 
Registers usually contain the data the processor is currently working on. Generally, micro- 
processors with more registers are more powerful and easier to program to do a given job. 

Intel 8080 - First off-shoot of the 8008. This machine inspired the development of most microproc- 
essors today, such as the Motorola 6800, Rockwell PPS8, Signetics 2650, and the Zilog Z-80. The 
8080 is a general purpose middle of the road microprocessor. Its instruction set and other 
characteristics are good examples of microprocessors in general, being neither extremely 
simplified, nor extremely powerful, nor particularly unusual. 

Motorola 6800 - A machine that was introduced as direct competition to the Intel 8080. The 6800 
has two apparent advantages to the 8080, it requires only one voltage level to operate as com- 
pared to the three needed by the 8080, hence a more simplified power supply is needed. Secondly, 
the 6800 hasd an additional two pins. 

F-8 (by Fairchild) - This microprocessor is designed for specialized applications where the 
microprocessor is permanently incorporated as part of a specific piece of equipment unrelated to 
computing. This microprocessor is known for the large amount of supporting circuitry and 
devices it needs for operation. 

Zilog - Designers of the Z-80. This microprocessor was developed by many of the men who design- 
ed the Intel 8080. This device is probably the first case where experienced microprocessor 
designers, after having seen the results of their work used in practical applications, designed a 
new general purpose microprocessor. 

The Z-80 executes 158 different instructions, which increase to 696 operation codes, com- 
pared to 78 instructions and 244 operation codes for the 8080A (the first version of the 8080). 



87