LG 42LB5600-UZ sound but no backlight

[Ifixstuff9]

Re: LG 42LB5600-UZ sound but no backlight

http://www.ebay.com/itm/Replacement-...-/361798126670 Do you think these will work? They are not as cheap as the ones you suggested but 12 LEDs and diffuses for $10 is still a lot cheaper than new LED strips.

[dskall]

Re: LG 42LB5600-UZ sound but no backlight

Those should work but you really don't need the lens just led

[budm]

Re: LG 42LB5600-UZ sound but no backlight

Foot print information is not provided!

[jbfr_54]

Re: LG 42LB5600-UZ sound but no backlight

The Shopjimmy LEDs do not mention voltage, size and current but look correct, the vendor may give you details. Anyway, you don't need the lenses as they usually do not break when removing. Here are the LEDs I use : https://fr.aliexpress.com/item/100PC...484083505.html
Their color temperature, light flux value, voltage and current are just perfect fit. You just need to wait a bit more for receiving them ! As a complementary information, the hot air gun I use to unsolder the LEDs is just a standard painting remover gun to which I added a home made nozzle to reduce air flow size. Not necessarily an expensive hot air soldering station. Just be carefull not to overheat the PCB.

[Ifixstuff9]

Re: LG 42LB5600-UZ sound but no backlight

Thanks for the info. I've ordered replacement LEDs, an LED rework station, and an LED backlight tester. I know it sounds a little excessive, but it will pay for itself if I can fix this tv.

[jbfr_54]

Re: LG 42LB5600-UZ sound but no backlight

Great, let us know when you'll be finished.
For testing the LED's one by one, I use an analog multimeter with a 3V and 9V internal batteries that is able to illuminate an LED in ohmmeter X1 position. If you use a tester on an entire strip, you may see a full black strip for only one single failing LED (open circuit) while in other cases a failing LED will be acting like a resistor or a diode then you can see the ones to be changed.

[Ifixstuff9]

Re: LG 42LB5600-UZ sound but no backlight

I just installed the new LEDs and the TV works perfectly. Thanks for the help. Also, the LEDs I provided a link for above were the wrong size so I ordered the 3528's and they work great.

[dskall]

Re: LG 42LB5600-UZ sound but no backlight

Thanks for the update

[jbfr_54]

Re: LG 42LB5600-UZ sound but no backlight

Hi Ifixstuff9, Thanks for the update, I am glad you fixed it for just a small cost compared to buying LED Strips.
I hope this will help convince people to try this kind of inexpensive fix as it is not much difficult to achieve.

[guyaca]

Re: LG 42LB5600-UZ sound but no backlight

TV LG 42 pq30r negative picture. Sound OK

[dskall]

Re: LG 42LB5600-UZ sound but no backlight

TV LG 42 pq30r negative picture. Sound OK

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[jfhojat]

Re: LG 42LB5600-UZ sound but no backlight

TV LG 42LB5600 has high led voltage that reason to burn LED Stripe.