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Old 11-20-2011, 05:29 PM   #19
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Join Date: Sep 2010
Posts: 10
Default Re: Philips LCD TV with Sound, No Picture (model 42PFL5322/10)

Originally Posted by retiredcaps View Post
Try this, as explained by PlainBill, for testing the ccfls

Well, looks like I fixed it. It wasn't the CCFLs, but the ingenuously simple CCFL test helped me find the problem. From the CCFL test I detected what appeared to be two malfunctioning CCFLs. The two were next to each other, in one corner of the set.

It seemed to me too much of a coincidence that 2 adjacent CCFLs failed together. So I searched the power supply path of the 2 CCFLs for shared components that could've failed. I found out the 2 were sharing an SMT 3A fuse. I tested its resistance, and unsurprisingly, it wasn't conducting. I soldered a new 3A fuse, and the set now works.

Many thanks for your help, retiredcaps and PlainBill!
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