Hi all. Any help would be greatly appreciated.
Thiss is a Samsung LCD TV model LN40A550P3FXZA with a picture solarization issue that I am trying to trouble shoot.
I have spent most of my time troubleshooting the T-con board. All test points on the T-con board have stable DC voltages. I have documented those voltages on all test points but can not find anywhere what these voltages should be. The GRD test point on the T-conn board reads 1.8v DC which seems like it should read 0 v DC.
No capacitors on any of the boards appear to have issues. I would like to be sure which board needs to be replaced before I buy a replacement board. Attached are pictures of the TV picture that shows the issue if that would help isolate which board may be bad.
Thanks
Jim
Thiss is a Samsung LCD TV model LN40A550P3FXZA with a picture solarization issue that I am trying to trouble shoot.
I have spent most of my time troubleshooting the T-con board. All test points on the T-con board have stable DC voltages. I have documented those voltages on all test points but can not find anywhere what these voltages should be. The GRD test point on the T-conn board reads 1.8v DC which seems like it should read 0 v DC.
No capacitors on any of the boards appear to have issues. I would like to be sure which board needs to be replaced before I buy a replacement board. Attached are pictures of the TV picture that shows the issue if that would help isolate which board may be bad.
Thanks
Jim
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