LG 47LN5200_U: PWR, MAIN, and all LEDs replaced, no picture

[JDC]

Re: LG 47LN5200_U: PWR, MAIN, and all LEDs replaced, no picture

We need to see the pictures of the whole back side of the TV to see how all the boards are connected together, then we need the picture of the T-CON board.

Will do by Monday. Thanks!!

[budm]

Re: LG 47LN5200_U: PWR, MAIN, and all LEDs replaced, no picture

We need to see the pictures of the whole back side of the TV to see how all the boards are connected together, then we need the picture of the T-CON board.

[JDC]

Re: LG 47LN5200_U: PWR, MAIN, and all LEDs replaced, no picture

@budm I've literally double checked every connection. The TV comes on, the screen illuminates, and I hear static. As for checking the TCON fuse, can you be more specific?

I just wish there was a way I could test to see if the panel is garbage before I throw a new TCON board in it.

@dick_barton I have no doubt the LEDS are on. When I replaced the LED strips (all of them), it lit up like Christmas Eve in Vegas. They are on even after I put it back together (I'm rather proud of that! )

[dick_barton]

Re: LG 47LN5200_U: PWR, MAIN, and all LEDs replaced, no picture

So are you saying you no longer have a blinking standby LED and the backlights are definately on when viewed from the rear of the set, absolutely no doubt about the leds being on?

[budm]

Re: LG 47LN5200_U: PWR, MAIN, and all LEDs replaced, no picture

All the cables are properly back in place? You have DCV on the T-CON fuse?, etc.

[JDC]

Re: LG 47LN5200_U: PWR, MAIN, and all LEDs replaced, no picture

I could but I'd rather exhaust every option first. This was my first LED replacement and I'm rather proud that I didn't destroy it, lol.

[dick_barton]

Re: LG 47LN5200_U: PWR, MAIN, and all LEDs replaced, no picture

Can you return the items even if there is a small returns charge otherwise put them up for sale to recover some of your costs.

[JDC]

Ugh. I'm in a hole.

When my friend gave me this TV, the LG 47LN5200-UB would blink when it was powered on and nothing more. I blindly replaced the power board and main board. No change.

Further research showed that this model likes to blow LEDs. Sure enough, when I took in further apart, a couple LED strips were dead along with random other LEDs. I ordered a kit and replaced them all. Now the TV lights up and stays on, but nothing else. No picture.

What else can I look at here? I'm already a couple hundred dollars in the hole but I've learned a lot, so it's worth it in my book.