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(Topic ID: 77393)

System 80B CPU locked up Help Requested:

By coz6

10 years ago


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Topic Stats

  • 42 posts
  • 10 Pinsiders participating
  • Latest reply 10 years ago by myork82
  • Topic is favorited by 1 Pinsider

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#24 10 years ago
 
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cro_pinman

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Read this thread briefly... test with "known working" CPU was exelent idea.
Conclusion...problem IS something "out" CPU board

Question.. pressing reset button on SOUND board..."any" sound ?

(another Q ) is "there any life" on displays....?

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#25 10 years ago
 
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cro_pinman

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Briefly reading isn't "good"

DO NOT connect connector between CPU board and driver board until you reach
"good" boot-up !!!

Very dangerous "thing" on SYS 80 B is potentiometer on 5V regulator board !!

It MUST be removed , and replaced with "quality" one !!

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#33 10 years ago
 
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cro_pinman

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Something is "wierd" for sure - does "good known " CPU makes ANY "life" on PF lamps ?
(of course WITH driver board connected )

Did you measure AC componnent on 5V?

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#35 10 years ago
 
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cro_pinman

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Also read couple times.... "rebooting all the time"... that was mine a reason to "recall good known CPU"

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