Star Tech Journal

January 1987 (14]
STAR*TECH Journal
Electrohome Monitor Horizontal Wave
By John R. Waschura
Cleveland Coin Machine Exchange
Cleveland, Ohio
SUBJOCT:
Electrohome Monitor G07-cOB.
RE: Negative Signal Mismach.
PROBLEM: Horizontal Wave or Curl.
ILGIC: 'Ihe negative sync signal of rost
logic sets are slightly different than the
G07--CSO ronitor negative sync inputs. 'Ihe
result of this mismach is a horizontal
wave or curl.
CORRECI'IVE ACTION: Join negative sync
signal inputs J2 and J3 together using a
jumper wire, then locate W 102.
Solder a jumper wire from W 102 to J2 or
J3.
'Ihis simple Irodification will result in a
perfect picture.
Atari CHAMPIONSHIP SPRINT
Bad Video
By Atari Field Service Dept.
Milpitas, California
Symptom: Bad video in the attract rode
screen of CHAMPIONSHIP SPRINI'
kits.
Solution: Rerove R80 on the video P.C.B.
For rore information call Atari Customer
Service at (408) 434-3950.
SALEI SALEI SALEI SALEI SALEI SALEI
Our first four complete volumes of back
issues are on sale at 50% offl Normally
they sell for $42, but now you cen
complete your library of technical deta
for only $21 eachl Order now.
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Vol
Vol
Vol
Vol
1,
2,
3,
4,
[Mar79-Feb80J,
[Mar80-Feb81J,
[Mar81-Feb82J,
[Mar82-Feb83J,
144
144
188
256
pages
pages
pages
pages
w/index
w/index
w/index
w/index
Prepaid or COD from: STAR*TECH JOURNAL,
POB 1065, Merchantville, NJ 08109.
(Foreign countries please add postage.]
Atari 720: Squares In Video Symptom
By Atari Field Service Dept.
Milpitas, California
Conversion Kits
Lowest prices in America!
Syrrptom: Squares or blocks appearing in
the play field video.
Solution: On the video P.C.B., replace the
Rams at location 4B or 4C with
known good ones.
Atari part: # 137441-001
For additional information, call Atari
Customer Service at 408/434-3950.
For Sale:
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GLADIATOR
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LEGEND OF KAGE
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10 YARD FIGHT
JAILBREAK
TIGER HELi
1942
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