LG 47LC7DF panel question

[crosstalk]

I picked up an LG 47LC7DF that wouldn't power on. Replaced 5 bad caps on the power supply and back in business. Next problem is there are several small semi-circular defects at the top of the panel that fade away as the panel warms up (10 mins or so). See photo attached.

I would like to reseat the tcon to panel ribbons, but it looks like a lot of work to remove the tcon on this model (lots of support structure in the way on this older model set). Any idea if I am wasting my time trying to get to the tcon to fix this picture problem?

[heavymachines]

Re: LG 47LC7DF panel question

Working on this problem as well after replacing all the primary caps except some bigger ones but set come on fine every time now as it had intermittent turn on issues the 5 volt stby was original problem as it was too low, replace all little caps in primary fixed that. However after warming this set up the rings at top of screen almost goes away completely but still there very very faintly. Anyone have any idea what this could be?





P.S. Resetting cable from t-con didn't have any affect... I tried shotgunning with hair dryer so far no affect. Just plain weird...

[heavymachines]

Re: LG 47LC7DF panel question

Problem is same as OP weird yellow half rings at top of screen...

[dskall]

Re: LG 47LC7DF panel question

Are they still there when you disconnect ribbon cables?

[attainteddragon]

Re: LG 47LC7DF panel question

looks like the diffuser sheet is sagging a little to me and the backlight is reflecting through the edge.