Re: LG 47lw5700 back light no video

I would suggest doing a google search for the board number and see what results turn up. Sometimes websites selling spares list the compatible board models on their site.

Re: LG 47lw5700 back light no video

[url]https://www.electronica-pt.com/esquema/tv/lg-esquemas-tv/lg-47lw5700-chassis-lb12c-26443/[/url]

47lw5700 service manualRe: LG 47lw5700 back light no video<...service manualRe: LG 47lw5700 back light no video

[url]https://www.electronica-pt.com/esquema/tv/lg-esquemas-tv/lg-47lw5700-chassis-lb12c-26443/[/url]

47lw5700 service manual

Re: LG 47lw5700 back light no video

I have the service manual for the 42LS570s but the title of the manual says it covers the 42LS570S,570T-ZB,42LS575S,575T-ZD as well. The main board number is EBT62013872 just in case your 47lw5700 uses the same board.
Have you tried a search for the 47lw5700 service manual. It may include other compatible models for your main board.

Re: LG 47lw5700 back light no video

42LS570S Does anyone have the circuit diagram stating the values of the resistors and capacitors on the board P/N 68705-13538 DESC - V12 42FHD Right Ver 1.0 H/F. Does anyone know/have any information on this board?

Re: LG 47lw5700 back light no video

My 42LS570S displays half a good picture when I unplug the ribbon from the right side of the Tcon and a replacement Tcon did not fix the fault. The tab bonding board connected to the screen also shows sign of corrosion, probably due to liquid damage as above. The damaged board looks like it contains caps and resistors and the board its self and the bonded tabs look ok. I have found the LG specification sheet for the screen and board and replacements (left and right pair)are available if you do a search. I would like to attempt to replace the damaged...

Re: dell inspiron N 5030

I had one of these models with a broken screen which when replaced worked fine until it cooked the video chip / bad soldering killed it a few years later. If the laptop screen did not come on but an external monitor worked fine. The problem could be a loose connection on the plug connecting the screen to the motherboard or a broken cable in the wiring loom. Try fully opening the lid and moving it to different positions between open and closed to see if the screen comes on? From what I recall there is also an internal switch to turn the screen off when the...

Re: New Members - please post your introductions here

Hello to all from Brokit. I have spent a lot of time reading posts to diagnose a smart tv fault and it is my first attempt at a digital tv but have had experience on valve and analogue TV's in the good old days. A voltage is still a voltage and a signal still a signal. Reading previous threads I have identified the problem thanks to all those who contribute to the site for the informative information and support. Unfortunately the diagnosis is dire. Someone must have cleaned the screen and the liquid has damaged the led panel...