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Pioneer pro-107 unit shuts down sometimes shortly after you first turn it on, and after it plays for a while. In order to cut unit on, it must be unplugged from the AC. Also, there is no indication of any problem in the picture, unit just shuts down.

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Please check if the sleep timer is activated on the unit ,please unplug the cable for 30 min and then replug it back and set back to factory settings if the problem exists please change different power out if the problem continues you may need it to get it checked by authorized service men to service the tv or if within warranty get it fixed by the company ..................................

Posted on Jun 12, 2008

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You could be having a failing power board, or faulty components on the board like capacitors/resistors.Easiest (but not necessarily cheapest) option would be to replace the entire power board at one go.

However, having said that, it is very difficult to diagnose the exact fault without doing spot testings on the unit. I would recommend getting a qualified repairman to take a look and diagnose the issue.

If you would like to attempt a DIY, you will need a service manual to guide you. You can find one here:
http://servicemanuals.vstore.ca/

However, be aware that there are voltages inside your TV set that can kill, even if unplugged.

If you found the solution useful, kindly take a moment to "Accept" my solution.

Posted on Jun 12, 2008

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