Lg 47LV5500 issues.

[Malachi]

Just got this today for free. Not sure how to describe the problem.
The tv will on, LG life is good will splash on the screen then disappear. Back lights stay on.
Some times the lg life is good message flashes a couple more times other times not.
Not sure what to check, haven't even taken it apart yet.

[ReeceyBurger123]

Re: Lg 47LV5500 issues.

Mainboard issue, probably bga solder on the Cpu or firmware failure.

[Malachi]

Re: Lg 47LV5500 issues.

Break out my heat gun? I know how you feel about the oven method.

[ReeceyBurger123]

Re: Lg 47LV5500 issues.

Yeah give it a shot buddy, deffo issue on the Mb though.

[Malachi]

Re: Lg 47LV5500 issues.

Should I put flux on it? How long should I leave the heat gun on it?

[ReeceyBurger123]

Re: Lg 47LV5500 issues.

Well take the back off first and get us an image of the board please.

[Malachi]

Re: Lg 47LV5500 issues.

Here you go. never worked on a tv this thin.

[dick_barton]

Re: Lg 47LV5500 issues.

Wouldn't it be best to attempt the firmware update as suggested by ReeceyBurger123 first?

[Malachi]

Re: Lg 47LV5500 issues.

How? I can't get to the onscreen menu?
The instructions from lg support is to select update from the on screen menu.

[ReeceyBurger123]

Re: Lg 47LV5500 issues.

It can be done by usb, it auto updates.

[Malachi]

Re: Lg 47LV5500 issues.

I'll try. His doesn't mention that.

The eeprom is $20 on eBay. Service to have someone replace the eeprom it $135.

[Malachi]

Re: Lg 47LV5500 issues.

I tried, it doesn't auto update.

[ReeceyBurger123]

Re: Lg 47LV5500 issues.

Maybe try replacing that then ?

[Malachi]

Re: Lg 47LV5500 issues.

Replacing the eeprom? It costs $135 to have that done.

[ReeceyBurger123]

Re: Lg 47LV5500 issues.

Solder it yourself ? Easy to do.

[tvtimmy]

Re: Lg 47LV5500 issues.

The pizza oven re-flow worked twice for me. One was this exact model. One was a 55". Both still working . I only did it because replacement boards are hard to find , or over priced.
I have no idea what the temp is in it, so I just put it in for about 2 min. and checked it like every 15 sec. When I saw shinny solder, and no melting plastic, I pulled it out and let it cool for 30 min. I still can't believe it worked ....Twice!

[ReeceyBurger123]

Re: Lg 47LV5500 issues.

Do not do the pizza flow method Mal, if you do I will personally fly out over to where you live uninstall your oven and smash it up then take it to the skip and keep the money for the scrap metal. Do one with a heat gun and flux, remove the heatsink before reflow then after apply fresh thermal paste to the Cpu.

[Malachi]

Re: Lg 47LV5500 issues.

Not easy for me reecey. I tried the IGTBs on the Panasonic SU board. That was hard enough.
I followed norcals video, same heat gun set on low. Didn't do anything, kept it on the same amount of time as he did, as the video was running as I was doing it.
Even used the same brand flux. I had to put my heat gun on high.

[Malachi]

Re: Lg 47LV5500 issues.

I can try reflowing the cpu. Changing the eeprom is out of my skill set.

[ReeceyBurger123]

Re: Lg 47LV5500 issues.

Im only 17 you think I didnt mess things up when learning ? I did, badly sometimes with ripped pads etc. You will learn if you actually try buddy. However from what that other chap said I would try reflowing this first before replacing the epprom/flash spi chip.