Question about Zenith R57W46 57" Rear Projection Television
I have an older Zenith rear projection tv. Model no. pv5257. I was told it needs a new power supply: part no. A1719602 which is no longer available. Question is... Can I repair this power supply? I'm pretty handy and not afraid to try if I knew what to do and/or what to look for! Any help is really appreciated!
These power supplies are complicated to work on. There are some preprietory parts that you would not be able to genericaly puarchase from general electronic parts suppliers.
If you are very strong in knowledge about power supply design, and if you can have the service manuals, have a scope and a DVM, you should have a chance to figure out what the fault is.
Take care that switching power supplies can be dangerous to work on. They employ high current using high voltages on the drive side.
Normally, these power supplies are not designed to be servicable.
Posted on May 14, 2008
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Posted on Jan 02, 2017
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