Star Tech Journal
Issue: 1986-July - Vol 8 Issue 5 - Page 1
Sl'AR...Jf IECH JOURNAL
THE TECHNICAL MONTHLY FOR THE AMUSEMENTS INDUSTRY
JOLY 1986
Sega SPACE HARRIER Motor Burn-Out
By Frank Rothouser/CUstomer Service
Sega Enterprises
San Jose, CA
GAME:
Moving cabinet type SPACE HARRIER.
SYMPI01: Possible motor burn-out of the
left/right drive rrotor if the proper IC is
not present on the Motor Drive PCB
(834-5801).
DISCREPANCY: IC -7 on the Motor Drive
board must be a 315-5160A. If an "A" is on
IC -7, then that PCB has been modified by
the factory and requires no further
action.
(X)RRECI'ION: Have all your moving cabinet
type SPACE HARRIERS checked for the
ITOdified IC -7 on the Motor Drive PCB. If
the "A" suffix is not present, advise
your Sega distributor immediately.
VOLUME 8, NUMBER 5
Tradewest IKARI WARRIORS Video
By Sam Cross
Godwin Distributing
North Little Rock, AR
Syrrptom:
Herringbone pattern in screen. (Fine
alternating light and dark shades or lines
overlayed on the video picture).
cause:
Power Supply - this is caused by the logic
ground and "FG" terminal not being
connected together.
cure:
Connect them together but beware! There is
no internal line filter inside the power
supply and this could cause lightning
susceptibility. Add an WJV overvoltage
protection device (rated at 150V and
available at Radio Shack) across the
120VAC inputs to the power supply.
~;~~~~~2888~~~~~~~~~~~28~~~~~~~~~~~~~~~~~
Monitor Horizontal Tear
By Jarres Beck
Greater southern Distributing Co.
Atlanta, GA
collector of X305. Then replace C501 with
the capacitor rerroved from the C303
location. You should then be able to
adjust the tear out.
ELOCTROHGIB . ..
WELLS-Q\RDNER •••
Problem: When converting games with
Electrohome G:J7 monitors in them, you may
have a horizontal tear that cannot be
adjusted out with the horizontal hold
control. This usually occurs when the kit
uses negative composite sync.
Problem: Wells-Gardner K4600 series
rronitor intermittent loss of horizontal
sync or intermittent horizontal tear.
Fix: Change C303 to a lOuf capacitor @25
volts with_ the positive lead facing the
Fix: Replace C356 (47uf @25V) on the
Horiz/Vert board then center the
horizontal hold pot.
'l\lrn L351 for best horizontal stability.
Fine tune with horizontal hold pot.
STAR•TECH JOURNAL (ISSN 0739-1048) is
STAR•TECH JOURNAL, July 1986, Volume 8,
published monthly during the first week of
each month via First Class Mail in North
America, via Air Mail elsewhere.
******************************************
Subscription rates: USA $56, Canada/Mexico
$63 ($US), Other countries $98 ($US).
Number 5. Copyright (cl 1986 by Star*Tech
Journal, Inc. ALL rights reserved. Address
inquiries to: POB 1065, Merchantville, NJ
08109. Advertising rates on request.
Phone: 609/662-1080.
James Calera: Publisher/Editor.
THE TECHNICAL MONTHLY FOR THE AMUSEMENTS INDUSTRY
JOLY 1986
Sega SPACE HARRIER Motor Burn-Out
By Frank Rothouser/CUstomer Service
Sega Enterprises
San Jose, CA
GAME:
Moving cabinet type SPACE HARRIER.
SYMPI01: Possible motor burn-out of the
left/right drive rrotor if the proper IC is
not present on the Motor Drive PCB
(834-5801).
DISCREPANCY: IC -7 on the Motor Drive
board must be a 315-5160A. If an "A" is on
IC -7, then that PCB has been modified by
the factory and requires no further
action.
(X)RRECI'ION: Have all your moving cabinet
type SPACE HARRIERS checked for the
ITOdified IC -7 on the Motor Drive PCB. If
the "A" suffix is not present, advise
your Sega distributor immediately.
VOLUME 8, NUMBER 5
Tradewest IKARI WARRIORS Video
By Sam Cross
Godwin Distributing
North Little Rock, AR
Syrrptom:
Herringbone pattern in screen. (Fine
alternating light and dark shades or lines
overlayed on the video picture).
cause:
Power Supply - this is caused by the logic
ground and "FG" terminal not being
connected together.
cure:
Connect them together but beware! There is
no internal line filter inside the power
supply and this could cause lightning
susceptibility. Add an WJV overvoltage
protection device (rated at 150V and
available at Radio Shack) across the
120VAC inputs to the power supply.
~;~~~~~2888~~~~~~~~~~~28~~~~~~~~~~~~~~~~~
Monitor Horizontal Tear
By Jarres Beck
Greater southern Distributing Co.
Atlanta, GA
collector of X305. Then replace C501 with
the capacitor rerroved from the C303
location. You should then be able to
adjust the tear out.
ELOCTROHGIB . ..
WELLS-Q\RDNER •••
Problem: When converting games with
Electrohome G:J7 monitors in them, you may
have a horizontal tear that cannot be
adjusted out with the horizontal hold
control. This usually occurs when the kit
uses negative composite sync.
Problem: Wells-Gardner K4600 series
rronitor intermittent loss of horizontal
sync or intermittent horizontal tear.
Fix: Change C303 to a lOuf capacitor @25
volts with_ the positive lead facing the
Fix: Replace C356 (47uf @25V) on the
Horiz/Vert board then center the
horizontal hold pot.
'l\lrn L351 for best horizontal stability.
Fine tune with horizontal hold pot.
STAR•TECH JOURNAL (ISSN 0739-1048) is
STAR•TECH JOURNAL, July 1986, Volume 8,
published monthly during the first week of
each month via First Class Mail in North
America, via Air Mail elsewhere.
******************************************
Subscription rates: USA $56, Canada/Mexico
$63 ($US), Other countries $98 ($US).
Number 5. Copyright (cl 1986 by Star*Tech
Journal, Inc. ALL rights reserved. Address
inquiries to: POB 1065, Merchantville, NJ
08109. Advertising rates on request.
Phone: 609/662-1080.
James Calera: Publisher/Editor.
Future scanning projects are planned by the International Arcade Museum Library (IAML).