Question about Philips 55PW9363 55" Rear Projection HDTV-Ready Television

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Reply ok i read my post and it didnt sound right LOL The 4 i mention do nothing when i put meter on them in any setting so i assume they are open or blown.... i bought the set used 2-3 yrs ago .... those 4 are the only ones with that type resistor everything else is the baby blue 6.8 ohm you mention .... so do you think someone put something there in its place wrong ? if so should i put back the right ones ? or replace with ones it has ?

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IF your model is the 55PW9363 those resistors should be 6.8 ohms like the other ones. i would put in the ones the service manual lists as those other resistors may have been close but burned out causing the ICs to be over worked.

Posted on Apr 04, 2008

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Ok first of all the only way the trippler could have caused this was if it shorted, and you would have known if that happened, because of the fire that would have occurred. So let's go back to square one. did you check the primary power supply in the back of the chassis? check it first for a blown fuse. I you can not find that then disconnect the power connection to the high voltage board and secondary power supply (switching power supply) and see if you can get the supply rail to the secondary board up (you will need a schematic to see the voltage values that should be there. Now if that fails to produce results you will have to assume that the secondary power supply is the culprit (it usually is). The funny part about this is the one component no one ever tells you to test is the one you should test all of the time and that is the IHVT (Integrated High Voltage Transformer) some folks refer to it as the "flyback" transformer. Now one of the biggest problems happens at this point there are three tests that you have to run the equipment needed is a s follows:

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This is a logical start as opposed to the shotgun approach a lot of forums seem to lead to. Let me know if this helps you.

Thank you,

Shuttle83

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