Question about Zenith Z46Z83D 46" Rear Projection Television

1 Answer

Screeching heard on powerup

Just been donated this RPTV not working obviously, no picture on powerup but definite high pitched screech coming from area next to internal power supply, just checking this is normal startup sounds at this stage, issue appears to be fuse related, though fuse passes multimeter testing power beyond current installed fuse fails multimeter test. possibly last owner installed incorrect fuse, any suggestions or possibility of schematic or service/repair manual or even a link that doesnt want me to pay for this info would be great for this model. Even better would be the ten step cheat sheet for diagnosing power failure would be fine at this stage thanks in advance.

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  • Adam Mager May 17, 2007

    No fan installed on this model, any suggestions or precautions for testing the high voltage on this system

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The screech any chance there is a fan nearby that could do with a little lubrication?

Posted on May 17, 2007

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