Star Tech Journal
Issue: 1982-November - Vol 4 Issue 9 - Page 5
5
STAR*TECH JOURNAL/NOVEMBER 1982
Nv1NUFACTs
DON'T SIT
ON YOUR
TECHNICAL TIPS FOR ATARI "DIG DUG" & "CENTIPEDE"
"Asteroids"!
By Frank Becker, Atari, Inc., Somerset, NJ
Game: "Dig Dug"
Problem: No sound
Solution/Style:
Change cap C 11 on new
PCBs (A038575) or cap
C 13 on old style PCB
(A038156).
Note:
This cap is not the only problem that
will cause no sound; however, it does
have a higher failure rate than you
might expect from a cap and is not as
obvious a solution as changing the
audio amplifier or speaker.
•
Game: "Dig Dug"
Problem: Game freezes up after
power-up
Solution/Style:
Check option switches on logic board.
• For new PCB (A038575) toggle 5
of option switch at location 9P
should be off.
• For old PCB (A038156) toggle 3 of
option switch at location 2C should
be off.
Game: "Dig Dug"
Problem: Game play
freezes while all characters
cycle through the center of the
playfield. ( Starting location for
Dig Dug.)
Solution/Style:
Change 3rd priority CPU
address buffers -
• New boards (A038575) 74LS367 at
3H and 3J
• Old boards (A038156) 74LS367 at
location 7M and 7K/L.
Game: "Centipede"
Problem: Picture flips in upright
game.
Solution:
Check to see if pins Z and 15 are
connected on the large 44-pin edge
connector.
Convert to new hot full
color games with
XC-1 00 Asteroids
Cabinet Conversion Kit.
All you need is PCB.
XC-100 KIT
*$495.*
This is a super kit. It is
well engineered and
can be installed in less
than 2 hours. Your
total satisfaction is
guaranteed.
Kit Includes
* 19" Color Monitor
* Isolation Transformer
* Heavy Steel Monitor
ROM/PROM TEST RIG
FOR SIGNATURE ANALYSIS
By Bill Say, Banner Specialty Co., Baltimore, MD
I have used the test rig shown below with excellent results to test ROMs and PROMs
that are soldered in-circuit, using the Kurz-Kasch ROM 1 and Signature II test units
with appropriate personality board. (Part numbers are from Augat catalog #101.)
HEADER
14Pin
16 Pin
24Pin
*Use 16
TEST CLIP
614-CG3
616-CG3
TCC 8136-16
624-CGl
TCC 8138-24
Pin and omit Pins 8 and 9.
•
*
*
*
*
HEADER
/
TEST __
CLIP
*
*
*
Mounting Bracket
(allows both vertical
and horizontal
picture tube
mountings)
Picture Tube Bezel
Tinted Plastic Safety
Screen
Choice of Control
Panels with Joystick
and Buttons
Monitor Bracket
Template for Easy
Mounting
All Required Hardware
Clear Plastic Top
Attraction Panel
Easy Instructions
*
WVGO, Inc.
Send Check or Order UPS COD to
Procedure:
1. Do not apply power to PCB under test.
2. Sever Vee or ground on chip to be tested, whichever is easiest to cut and/or repair.
3. Put clip on test chip and header into personality board.
4. Take signature.
5. Repair severed trace.
15000 Main Street
Cardena, CA 90248
213-516-9525
STAR*TECH JOURNAL/NOVEMBER 1982
Nv1NUFACTs
DON'T SIT
ON YOUR
TECHNICAL TIPS FOR ATARI "DIG DUG" & "CENTIPEDE"
"Asteroids"!
By Frank Becker, Atari, Inc., Somerset, NJ
Game: "Dig Dug"
Problem: No sound
Solution/Style:
Change cap C 11 on new
PCBs (A038575) or cap
C 13 on old style PCB
(A038156).
Note:
This cap is not the only problem that
will cause no sound; however, it does
have a higher failure rate than you
might expect from a cap and is not as
obvious a solution as changing the
audio amplifier or speaker.
•
Game: "Dig Dug"
Problem: Game freezes up after
power-up
Solution/Style:
Check option switches on logic board.
• For new PCB (A038575) toggle 5
of option switch at location 9P
should be off.
• For old PCB (A038156) toggle 3 of
option switch at location 2C should
be off.
Game: "Dig Dug"
Problem: Game play
freezes while all characters
cycle through the center of the
playfield. ( Starting location for
Dig Dug.)
Solution/Style:
Change 3rd priority CPU
address buffers -
• New boards (A038575) 74LS367 at
3H and 3J
• Old boards (A038156) 74LS367 at
location 7M and 7K/L.
Game: "Centipede"
Problem: Picture flips in upright
game.
Solution:
Check to see if pins Z and 15 are
connected on the large 44-pin edge
connector.
Convert to new hot full
color games with
XC-1 00 Asteroids
Cabinet Conversion Kit.
All you need is PCB.
XC-100 KIT
*$495.*
This is a super kit. It is
well engineered and
can be installed in less
than 2 hours. Your
total satisfaction is
guaranteed.
Kit Includes
* 19" Color Monitor
* Isolation Transformer
* Heavy Steel Monitor
ROM/PROM TEST RIG
FOR SIGNATURE ANALYSIS
By Bill Say, Banner Specialty Co., Baltimore, MD
I have used the test rig shown below with excellent results to test ROMs and PROMs
that are soldered in-circuit, using the Kurz-Kasch ROM 1 and Signature II test units
with appropriate personality board. (Part numbers are from Augat catalog #101.)
HEADER
14Pin
16 Pin
24Pin
*Use 16
TEST CLIP
614-CG3
616-CG3
TCC 8136-16
624-CGl
TCC 8138-24
Pin and omit Pins 8 and 9.
•
*
*
*
*
HEADER
/
TEST __
CLIP
*
*
*
Mounting Bracket
(allows both vertical
and horizontal
picture tube
mountings)
Picture Tube Bezel
Tinted Plastic Safety
Screen
Choice of Control
Panels with Joystick
and Buttons
Monitor Bracket
Template for Easy
Mounting
All Required Hardware
Clear Plastic Top
Attraction Panel
Easy Instructions
*
WVGO, Inc.
Send Check or Order UPS COD to
Procedure:
1. Do not apply power to PCB under test.
2. Sever Vee or ground on chip to be tested, whichever is easiest to cut and/or repair.
3. Put clip on test chip and header into personality board.
4. Take signature.
5. Repair severed trace.
15000 Main Street
Cardena, CA 90248
213-516-9525
Future scanning projects are planned by the International Arcade Museum Library (IAML).