Question about Philips 60PP9202 60" Rear Projection HDTV-Ready Television
I replaced the ic's on my philips 60in. projection tv and turn it on the picture was kind of orange so I tried to adjust the colors then all of a sudden it shuts off and now when I try to turn it on it beeps but nothing comes on the screen
Not that it is pertainent but it would be interesting to know which ICs you replaced and what caused you to suspect them; was the set dead before as it is now?
Generally, no video and no sound points to a power supply failure. Sometimes they will get slow at turning on, and others may fail completely; these two failure types can indicate different failure modes.
The type of failure that causes hard-starting power supplies is often cheap to repair whereas a failure that suddenly occurs can be more costly and involving more labor to resolve.
Pasted below is my usual suggestion for suspected power supply failures: --If it just fails to turn on, the main power supply is probably at fault and without some technical background and a couple of test instruments, you will not be able to do the repair yourself.
What you can do though is; unplug the set, let it stand overnight or at least several hours, remove the back panel and look for a separate board with mostly larger components on it; it will have a ferrite core transformer on it and several larger capacitors which are cylindrical and mounted vertically to the board.
Before touching anything inside, especially on that board, allow several hours to be safe since the larger capacitors can hold a painful voltage charge for some hours.
If you see signs of overheating such as discoloration of the board material, it may not be repairable but if you can find a part number on the board, you might be able to buy the power supply and install it yourself.
If there are no signs of heat damage to the board, there may be companies offering to repair it as a subassembly instead of repairing the whole set which could be much more expensive.
If you choose to replace or have it done, the power supply still may not be at fault since most are capable of switching on and off if a downstream problem is causing an overload.
Posted on Oct 31, 2008
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Posted on Jan 02, 2017
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