LC-52D62U PWR,2-OPC,5. Pictures Included

[icekillah]

Just picked up a LC-52D62U the previous owner claimed it had a blue screen and audio but when I got it home the backlights came on with no video. I get a Power 2- OPC 5 Blink code which points to the 12V_PNL_PWR error. The Service Manual can be downloaded free at you do have to wait like 2 minutes before the page will let you download it. There is a blinking LED on the main, yet I suspect the CCFL, or inverter failure. I tried finding a datasheet for the inverter transformer but was unsucessful. I would like to learn how to test these components yet the schematics are over my head. It would seem that the newer tvs have a feedback circuit on these inverter transformers. I have found some posts on this error, and it did not end well im sure we could figure it out, and it will be solved for the rest. I have a meter and a scope, as well as a CCFL tester ( http://www.ebay.com/itm/12-24V-CCFL-...item2ecbb1511d ) but i do not beleive its strong enough to test a ccfl from a 52" tv.

[icekillah]

Re: LC-52D62U PWR,2-OPC,5. Pictures Included

did some more research on that blinking LED it is very close to IC2002 according to the service manual ic2002 is:

1.8. IC2002 (RH-iXB345WJZZQ)
The monitor microprocessor is intended to communicate with the main microprocessor and to operate the system. It also controls power of the entire
system.

Id still like to test those CCFL's / Transformers, but those mainboard bga's are always suspicious

[budm]

Re: LC-52D62U PWR,2-OPC,5. Pictures Included

" I get a Power 2- OPC 5 Blink code which points to the 12V_PNL_PWR error" Then you should check the Voltage on the SMD fuse of the T-Con to see if the T-CON is getting the 12VDC or not.

"but when I got it home the backlights came on with no video" So I do not see why you will be looking at the inverter circuit problem.