Star Tech Journal

S*TJ JANUARY 1982 19
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MARCH '81
Midway "Galaxian" Substitute +5v Regulator • Atari
"Battlezone" Control Handle Mod • Gottlieb New
System 80 Service Manual • Midway "Pac-Man"
Ram/Rom Location Code• Atari"MissileCommand"
Power Interrupt Mod • Atari "Battlezone" Random
Score Problem • Gottlieb Auxiliary Lamp Driver
Board • Microprocessor Troubleshooting (Part 3) •
Midway "Pac-Man" Degree of Difficulty Mod • Atari
"Battlezone" Aux PCB Mod • Stern "Berzerk" Service
Notes • Cinematronics "Siar Castle" \13 Roms •
Atari "Asteroids" Switch Maintenance • Rowe/AMI
Turntable Maintenance Tips
APRIL '81
Midway "Rally-X" Test Mode • "Big Computer'' in one
chip • Seaburg "SMC 1," "SMC 2" Potential SPKR
Damage • Williams General Illumination Mod •
Midway "Rally-X" Monitor Fuse Rating • Midway
"Pac-Man" Cocktail Table Static PCB • Early Warning
(Field Mainti,nance Tips) • Rowe/AMI Part Number
Conversions• Exidy"Spectar'' Program Update Mod
(11 A-1 to 11 A-2) • Williams C8363 Master Display
Board Troubleshooting Procedures • HVL Circuits-
Atari "Missile Command" Color Monitors
MAY '81
Williams Service Notes • Midway "Rally-X" Static
PCB • Centuri "Phoenix" Options • Exidy Color
Board Ribbon Cables • Updating Older Rowe/AMI
Phonos to Contemporary Prices • Midway "Pac-
Man" Joystick Modification • Signature Analysis
(Part 1) • Atari "Missile Command" Diagnostic Tests
• Rowe Bill Changer Modifications • Gottlieb Coil
Chart
JUNE '81
"Repair of Rock-Ola Dollar Bill Programmers" •
Midway "Galaxian", " Pac-Man" Substitute +5VDC
Power Transistor • Centuri "Phoenix" Modifications
• Midway "Gorf" Program Change • Early Warning
#2 (Field Maintenance Tips) • Signature Analysis
(Part 2) • Stern "Berzerk" Credit Accumulation Check-
list • Stern "Berzerk" Joystick Mod Kit • Suggested
1 ___________ - __ - - - - -
Game Improvements • Color to B&W Converter CKT
• Texas Instruments PowerSemiconductorCatalogs
JULY '81
Atari "Asteroids Deluxe" Program Change Kit • Stern
"Berzerk" Joystick Adjustment • Rowe 447 Product
Price Upgrading • Stern "Scramble" Power Supply
Modification • Gremlin "Astro Blaster'' Audio Modifi-
cation • Wiring Diagram for Wico Manual/Remote
Volume Control • Gottlieb Reset Modification •
Taito "Crazy Climber'' Joysticks • Signature Analysis
(Part 3) • Williams "Defender'' System Summary •
Midway "Pac-Man", "Rally-X" & "Gorf" Anti-Static
Cleaner Application• Williams"BlackKnight"Service
Notes • Loss of All Coils on Bally Pins • Atari
"Asteroids" Troubleshooting Tips • Stern Joystick
PCB Troubleshooting Tips
AUGUST '81
Midway "Gorf" Mission Self Test • Updating Older
"SHP" Seeburg Amps • Bally MPU Screening Error
• Lost and Found Bally Flippers • Midway "Rally-X"
Ram Test Message Code • Stern "Scramble" Joystick
Notes • Atari Service Notes ("Centipede", "Battle-
zone", "Warlords", "Asteroid Deluxe", "Asteroids") •
Bally "Fireball II" Clamping Diode • Game-A-Tron
"Space Bugger'' CPU Modification • Bally "Fireball
11" Fuse Modification • Early Warnings No. 3 (Field
Maintenance Tips) • Signature Analysis (Part 4) •
Exidy Service Notes • Gottlieb Display Problems•
Baily's Tech Quiz Part 1 • Midway "Pac-Man" &
"Rally-X" Brightness Adjustment • Atari "Asteroid
Deluxe" New Program Feature • Centuri "Phoenix"
Upright Modification
SEPTEMBER '81
Midway General Illumination • Bally 7 Digit MPU
Modification • "Hot" Centuri Service Tip • Midway
"Wizard of Wor'' Maze Test • Exidy "Targ" and
"Spectar" Audio Amps • Baily's Tech Quiz (Part 2) •
Modification of One Coin-One Play Machine into Two
Coins-One Play Machine• Williams"Defender''Notes
• Midway Card Rack System Compatibility • Stern
"Berzerk" HandleAssembly •Midway"OmegaRace"
Features • Wico Joystick Report • Exidy "Venture"
- - - - - Fill out and mail - - - - - - - -
Program Change • Gremlin "Space Fury" Cabinet
Notes• Gottlieb System 80 Sound/Speech Board•
Seaburg Price-Setting Instructions (Part 1)
OCTOBER '81
Midway "Omega Race" Troubleshooting Guide •
Centuri "Phoenix" Credit Mod • Stern "Berzerk"
Alternate Joystick• Exidy"Venture" Audio Diagnostic
Test• Bally'sTechQuiz(Part3) • CoincoDoorNotes
• 2nd Annual S* T J Reader Survey • Bally Rectifier
Board Fuse Change • Atari "Centipede" - Potential
Shock Hazard • Stern "Super Cobra" Pwr Supply
Mod • Stern "Super Cobra" Logic System ID •
Seeburg Price-Setting Instructions (Part 2)
NOVEMBER '81
Atari "Centipede" Track-Ball Mod • Bally "Centaur''
Service Notes • Exidy "Venture" Joystick • Atari
"Tempest" Service Documentation • Midway "Pac-
Man", "Rally-X" and "Galaxian" Coin Door Mod •
Stern "Super Cobra" Garbled Sound Mod • Seaburg
Price-Setting Instructions (Part 3) • Midway "Omega
Race" Dip Switch Setting • Midway "Omega Race",
"Wizard of Wor'' and "Pac-Man" Display Glass •
Gremlin/Saga "Space Fury'' Color (G-80) X-Y System
Redesign • Interfacing Dynamic 4027 Rams to the
Z80 • Taito "Moon Shuttle" Program Change •
Baily's Tech Quiz (Part 4)
DECEMBER ,5 1
AMOA Expo '81/New Game Standouts • Segal
GremlinG-80PowerSupply • BallyFuseChangeson
New Rectifier PCB • Midway "Pac-Man"; New Pro-
gram Available • Midway "Omega Race" Encoder
Substitution• New System Preview/Atari "Tempest"
• Two Coin/ One Play Circuit Redesign • Centuri/
Allied Leisure "Clay Champ" Xenon Tube Notes •
Taito "Qix" Service Notes • Midway "Omega Race"
Rom/Ram Checklist • Rock-Ola: lntermittant Problems
and Solutions • Gottlieb System 80 Prom List •
Baily's Tech Quiz (Part 4) Answers • Williams
"Defender'' Ram Failure Due to Blown Fuse• Bally
Burnt Connector Solution • Exidy Monitor Adjust-
men! Procedure • Checking Voltages on Exidy
"Venture" • Exidy " Mousetrap" Special Device Notes
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7
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