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Equipment Repairs => LCD TV forum => Topic started by: lew247 on January 07, 2016,05:18:29

Title: Backlight replacement (or not)
Post by: lew247 on January 07, 2016,05:18:29

Has anyone tried, or is it even possible to use one of these http://www.amazon.co.uk/gp/product/B00LWYFTHC (http://www.amazon.co.uk/gp/product/B00LWYFTHC)
to replace the backlight in a tv?
I have a 50inch LG one that has a lot of backlights that have failed, and it's a case of either sourcing new led's for it and soldering them in
or
I wondered if something like the strip above would work  - there's enough leds not to need the diffuser/lens?


Just a thought

It's my own tv so it doesn't matter if it gets broken in the process - its useless without the backlight anyway

Title: Re: Backlight replacement (or not)
Post by: downunder on January 07, 2016,05:59:57

They say necessity is the mother of invention. In this case I haven't had the necessity. No reason why it shouldn't work. The only downside is that LED circuits are a constant current setup, so you may have to juggle LED numbers so that it doesn't trigger the backlight protection which will of course have a window of max/min current range.