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Loud Hum #2
Repair of: Asteroids(Atari 1979)
Repair Type: PCB
Status: Fixed
Contributed by: mkillewald
Symptom:
loud hum heard over game sounds that increases and decreases with volume control
   
Solution:
replaced LM324N op amp IC located at P12 (rev 05 board)

Other Repair Logs

 
These repair logs are related to this repair log.
Title 
Symptom 
Solution 
Status 
ship fire and saucer fire sounds not right the players ship fire and the saucer fire sounds were very soft low pitched buzzes (bzzt, bzzt, bzzt) replaced 4016B at location M10 (rev 05 board) and now have the correct pew, pew, pew sounds for both ship fire and saucer fire Fixed
some asteroids lose brightness during play some asteroids lose brightness and disappear during play suspect monitor needs to be recapped and transistors replaced.  Unknown
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