Mitsubishi Error Code 57 - AVS Forum
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post #1 of 8 Old 08-22-2012, 05:44 PM - Thread Starter
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I have a Mitsubishi WD-65837. A couple weeks ago, I started getting an error code 57. I took out the electronics and gave them to a friend to look at, since none of the caps on the ballast looked bad. He said a couple on the main board tested kinda iffy, so he changed them out. Everything looked fine on the ballast. I still get an error code 57. He suspected a faulty chip on the main board, but could offer no further assistance.

He's suspecting the main board, which is a little tough to find. I don't really want to buy a ballast if that's not the problem.

Advice?
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post #2 of 8 Old 08-23-2012, 01:58 PM
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Three prossibles (read to me from the service manual - no I don't have a copy or access to a copy).

Error Code 57 means Ballast communication problem (ballast to chassis)
Possible causes:
1. Loss of 340V from PWB-POWER to Ballast (Loose PL or CJ1 connector);
2. Loss of communications between PWB-MAIN and Ballast (Loose FB or CJ3 connector).
3. Ballast Failure
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post #3 of 8 Old 08-23-2012, 02:30 PM - Thread Starter
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Right, the information I have, I got from the service manual. I was hoping to hear from someone that had experience with these things to gauge how likely it is for the main board to have a chip failure. Also, how likely is it for the ballast to be bad when there doesn't appear to be any damaged components and the caps on the ballast tested fine.
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post #4 of 8 Old 08-23-2012, 03:16 PM
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Most of the suggestions relate to security of the connectiors between boards not caps or chips, you may already checked those but you did not say so.
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post #5 of 8 Old 08-23-2012, 03:25 PM - Thread Starter
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Sorry, I did reseat all mentioned connections.
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post #6 of 8 Old 08-23-2012, 03:25 PM - Thread Starter
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Sorry, I did reseat all mentioned connections.
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post #7 of 8 Old 08-23-2012, 06:13 PM
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It appears to be the ballast then.

"The wise understand by themselves; fools follow the reports of others"-Tibetan Proverb
 
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post #8 of 8 Old 08-24-2012, 05:14 AM - Thread Starter
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What with the ballast fails? My electronics guy is looking at the TV today and I'd like to have some guidance.
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