Star Tech Journal

Issue: 1982-September - Vol 4 Issue 7

_~_AR_*_TE_C_H_Jo_u_RN_A_L/-SE-P-TE_M_B_ER-1-98_2_I_N_QizITIV_E
_ _ _ _ _ _ _ _ _ _ _ 1~7
19.
20.
BB·
Identify this ckt. _ __ _ _ _
What would be the symptom if Xsistor 01 shorted C-E?
CK
0
I ~€¢---x-8,ooo
I~
DB5
DB4
DB3
DB2
DB1
DBO
21. What is the output of this ckt?, _ _ _ _ _ _ _
L Coin
LS
174
2N6044
01
D
C
a
-=-
R Coin
+10vdc
- Reset
--
+22vdc >--+------i
IN100
100
ITs;
22. What is the output of the ckt?
23. What would be the symptom if the .1
MFD capacitor shorts?
+5v
+12vdc
_ _ _ _
~
Zy
=
6.8 f - - - - - ' - - - - - - - - -
InQuizltive Answers (August)
15) Full wave, filtered, unregulated, positive
power supply.
16) 6vdc
17) No. (Xsistor is "on"; lamp is off.)
18) Closed "move left'' switch on the joystick
assembly.
ELECTRONICS TECHNICIANS ASSOCIATION
ELECTS OFFICERS
The Electronics Technicians Association, International announces the
election of new officers for the 1982-83 year. Elections took place by
mail ballot as well as in person at the Association's fourth annual
convention at Iowa State University in Ames, IA.
The new Chairman is Mr. Donald Anker, CET, who lives near
Marshalltown, IA, in Garwin. He is employed by Fisher Controls Corp.
as an electronics components purchaser and served as ET A Vice
Chairman last year.
The Vice Chairman is Mr. Grover Harvey, CET, formerly an
electronics technology instructor at ITT Indianapolis. He recently
assumed a new position at the Naval Avionics Facility in Indianapolis as
an electronics technician. Mr. Harvey also was selected by the ETA
membership as the TECHNICIAN OF THE YEAR, ETA's highest
award.
Secretary is Mr. Walter Schwartz, now employed by an electronics
firm in Tennessee. Walter is well known to electronics technicians by
virtue of having been editor of Electronics Technician/Dealer magazine
for several years through 1981 .
Treasurer is Mr. Jesse B. Leach, CET, owner of Lee's TV in
Linthicum, MD. Jesse was the initial chairman of ETA and has
previously served the association movement as Treasurer and Vice
President of NESDA and as Chairman of ISCET.
In addition to the major offices above, subdivision officers were also
elected, as follows:
George Savage, CET, who stepped down as Chairman of ET A at the
Ames convention, was elected to serve as chairman of the Certified
Technicians Division. George is from Doniphan, Nebraska ·and is
employed as a research technician at International Sensor Systems,
Inc., Aurora, Nebraska.
Secretary for the CID division is Edward T. Carroll, CET, an
electronics technology instructor at Indiana Vocational Technical
School in Indianapolis, IN. Ed lives in Indianapolis and previously
served ETA as Chairman of the Educators Division.
The EEA, or Electronics Educators Division of ETA, its instructor
division, is headed by Francis "Buzz" True, CET, who is employed as
an electronics technology instructor in Twin Falls, Idaho.
EEA Secretary/Treasurer is Mr. John Guinan, CET, who has
taught electronics technology for several years in Philadelphia. He also
operates his own business as an electronics consultant and recently has
entered the earth station receiver businesss.
Mike Chapman, CET, who is also Chairman of the local ETA
chapter in Scranton, PA (PETA) was reelected Chairman of the
Communications Division. Mike was responsible for developing ET A's
TELECOMM newsletter for communication techs.
Patrick Reilly, CET, of Watson's TV in Clearwater, Florida, took
over as the Communications Division Secretary/Treasurer. This is Pat's
first year to serve as an ET A officer.
Canadian Chapter members elect their own officers. An announce-
ment will be made later regarding their new officers.
The 1983 Annual Convention for ETA will be held in Indianapolis
on July 14, 15 and 16.
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STAR•TECH JOURNAL/SEPTEMBER 1982
18
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IOL. 4/#1 MARCH '82
Taito"Oix" New Rom Available• Nintendo"Donkey
Kong" Cabinet Problems • Service Notes: Atari
"Centipede", Gottlieb "Black Hole" • Williams
"Make Trax'' Increase Appeal Using Options •
Nintendo "Donkey Kong" PCB Interchangeability
• Atari "Asteroids" Display Problem • Gottlieb
Switch Arcing Modification • New System Preview/
Williams "Hyperball" • Stern Video Power Supply
Interchangeability • Rock-Ola 473, 474, 468-1
Credit Mod • Gremlin/Sega's Digital Tech Test
(Part 3) • Midway "Kickman" Service Notes •
Gottlieb "Haunted House" Prom ID • Overvoltage
Protection for Williams "Defender'' • Atari
"Centipede": Erasing High Scores • Troubleshooting
With The Logic Comparator • Midway CRT Sub-
stitutions • Midway "Bosconian" Service Video
Tape • Service Tips: Rowe Bill Changers, Williams
Flippers, Atari Coin Doors• Midway'sX-Y Monitor
Troubleshooting Guide (Part 2)
IOL 4/#Z Al'llll 'IZ
Gottlieb's New System BOA • Nintendo "Donkey
Kong" Pix Flip Mod • Taito "Oix" Static Mod •
Midway Mini "Pac-Man" Static Solution • On The
Service Trail ... Nintendo "Donkey Kong'', Rowe Bill
Changers, Tommy Lift Gates, Stem Pop Bumpers,
Midway "Ms. Pac-Man" Notes • Taito "Qix",
Midway "Galaga" & "Kickman" PCB Lock-Up Mods
• Midway "Kick"f'Kickman" Notes & Modifica-
tions • Bally "Flash Gordon" Strobe Unit Service
Tip • New System Preview/Gottlieb's "Haunted
House" • Nickel/Dime Adjustments for Jukebox
Coin Mechs • Rowe Responds to Erickson •
Atari Monitor Tech Tips • Midway's X-Y Trouble-
shooting Guide (Part 3) • Midway "Ms. Pac-Man":
PCB Layout, Difficulty Mod • Fluke's New Tester
for Troubleshooting Microprocessor-Based Games
• Doing Away With ThatTired Feeling • Gremlin/
Sega's Digital Tech Test (Part 4)
IOL. 4/#3 MAY '82
Field Service Tips: Williams "Hyperball" Notes,
Williams PCB Interchangeability, Atari "Centipede"
Board Revisions • New Input Protection Circuit for
Wells-Gardner Color X-Y Display • Stern "Turtles"
Update Kit • Newport Joystick Replacement
Solution • On The Service Trail ... AOE '82 Show
Report, Williams "Hyperball" Location Notes,
Williams "Hyperball" Handles, Response to Rowe
Letter • Williams "Hyperball" Ball Lift Motor Kit
and Control Panel Alignment • Annual Technicians
Convention • Gottlieb Transistor and Diode Sub-
stitution Guide • Midway's X-Y Monitor Trouble-
shooting Tips (Continued) • Exidy "Mouse Trap"
Joystick Modification • Additional Manufacturer
Customer Service Numbers • New System Preview/
Stern's "Frenzy'' • Atari "Centipede", "Asteroids"
Tech Tips • Interchangeability of Phono Volume
Controls • Gottlieb "System 80" Prom List •
Taito "Alpine Ski" Joystick Modification • Coin
Door Maintenance: Metal/Plastic Coin Acceptors
• lnOuizltive
IOL. 4/#4 JUNE '82
Gottlieb "Haunted House" Up Kicker Burnout Solution
• Bally "Rapid Fire" Computer Volume Control •
Exidy "Mouse Trap" Enhancement Kit • Midway
"Ms. Pac-Man" and "Galaga" Wavy Video Mod •
Nintendo "Donkey Kong" Static Problems •
Gremlin/Sega "Zaxxon" Joystick Handle Precaution
• Gremlin/Sega "Eliminator" Service Notes: Fuse
Change, X-Y Timing PCB Mod, Freeze Up Mod •
Midway's Color TV Monitor Repair (Part 1) • New
System Preview/Atari's "Dig Dug" • Atari Intro-
duces the "Pat 9000" Test Station • Pace's Micro
Portable Soldering and Desoldering System •
Taito "Grand Champion" Coin and Reset Mods •
Midway "Galaga" Lock-Up Mod • Venture Line
"Looping" Loss of Audio Solution; Eprom Exchange,
Power Supply Mod • Bright Star's New Product
Line • Deco "Lock 'N' Chase"/Cassette System
Notes • On The Service Trail .. . Pinball Suggestion,
Lock Gripe, Gremlin Report • lnOuizltive •
Gottlieb Coil Chart
IOL 4/#5 JULY '82
Atari "Centipede" & Gottlieb "Haunted House"
Service Tips • Stern "Amidar'', "Scramble", "Super
Cobra" lntermittents • Midway Service Bulletins:
"Pac-Man", "Galaga", "Kick-Man", "Bosconian",
"Rally-X", "Ms. Pac-Man", "Robby Roto", "Tron" •
On The Service Trail ... Control Panels, Video Game
Adjustments • Service Tips: Stem Flipper Assy's,
Williams PS Connector, Stereo vs. Mono • Pace's
Fused Eyeletting System • Exidy "Mouse Trap"
Stand-Off Modification • Gremlin/Sega "Turbo"
Modifications • Mid way" Pac-Man" Troubleshooting
Steps • New System Preview/Gottlieb's "Caveman"
• Williams "Robotron 2084" Game Adjustments
• Wells-Gardner Color X-Y Display Tech Tip •
Midway's Color TV Monitor Repair (Part 2) • Atari
"Dig Dug" Static Mod • Williams "Hyperball" Rev
4 Program/Function Settings • Atari "Dig-Dug"
Custom Chips • Gottlieb System 80 Solenoids •
lnOuizltive
IOL. 4/#8 AUGUST '8Z
Service Tips: Gremlin/Sega "Turbo" Optics, Midway
"Galaga" Free Play Solution • Exidy "Venture" to
"Pepper II" Conversion • Technical Tips: Wells-
Gardner Color X-Y Display • On The Service
Trail ... The Goose That Laid The Golden Egg •
Midway Service Bulletins: "Galaga", "Tron",
"Lazarian" • Wells-Gardner Vertical Deflection
Circuit Revision • Platt's New Product Line •
Service Outlets For Rock-Ola Jukeboxes • Elec-
trical Effects on the Body • New System Preview/
Bally/Midway's "Tron" • Tilt • Atari's "Dig-Dug
Credit Accumulation/Temporary Fix • Pace's New
Catalog of Equipment • Midway's Color TV Monitor
Repair (Part 3) • Gottlieb System 80 Controlled
Lamp CKT Troubleshooting • lnQuizltive
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