Re: Samsung LE40r87BD, backlight working but no picture

I unplugged the left one and the left side of the screen went white and vice versa.
I guess this means something went wrong with the main board and killed the t-con in the process?

Re: Samsung LE40r87BD, backlight working but no picture

I checked the capacitors CD04-08 and now they have 15V.

By the way, where do you find info on this kind of stuff?

Re: Samsung LE40r87BD, backlight working but no picture

I finally got around to replacing the t-con board but it made no difference, same symptoms as before. Any other ideas on what might be the problem?

Re: Samsung LE40r87BD, backlight working but no picture

Ok, I feel more confident ordering a new t-con board now since it's not behaving properly.

Thanks a lot for your help!

trunkmonkey

Re: Samsung LE40r87BD, backlight working but no picture

CD01-08 all have 13,7V on the upper side, 0V at the bottom.

CD33-35 have 3,35V at top, 0V at bottom.

Thanks for the quick replies!

Re: Samsung LE40r87BD, backlight working but no picture

Voltage on FP1 is 13,7V both ends

Hi!

I'm trying to repair a Samsung LCD-TV LE40R87BD and have run out of skill. The backlight and sound is working which leads me to believe it's either the t-con board or the lcd panel. When i power on the tv the little red led blinks for a few seconds before the set comes on but i don't know if that's normal since i haven't seen the tv in working order.

The IC located just up and to the left of the sticker on the t-con board looked a little burnt on the backside of the card, but i don't know how to check if its damaged. I have also checked the fuse (FP1) on the t-con...

Re: New Members - please post your introductions here

Hi there!
I'm just another guy with pretty much no skills in electronics trying to figure out whats wrong with an LCD-TV. I've always wanted to learn a little about how the stuff works so this seemed like a great opportunity. Googling the problem brought me to this forum over and over so I thought I might as well join up.

Have a nice one!

trunkmonkey