This is more of a general question on replacement led backlight sets .Replaced a full set about 5 months ago on the LG 47LN5400.Set went black again and after opening it up an open led was found.Set was purchased on Ali-express and had the aluminum backs.I think the originals had copper backs .Are these sets too cheap and should I stay away from them.Any set I bought at Shop-jimmey for other tv's had copper backs like the originals and,I assume they may be of better quality and perhaps last a few years .So if anyone has any thoughts on this please share.Backlight sets for me are about 1/3 the cost from China as compared to getting them from the states (I'm in Canada ).I have to pay fairly high shipping costs to Canada as well.I have replaced backlight sets on 2 dozen Tv's the past year or so and need backlights to last a year or two otherwise this repair won't be worth it .
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LG 47LN5400 Replacement backlights
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Re: LG 47LN5400 Replacement backlights
All the LN strips on aliexpress and even shopjimmy are substitute strips. I stick to one or two sellers (not the cheapest) and turn down the backlight to around 55% on ALL sources and apps for smart models. Never had a repeat failure with new strips on LN models doing this. Shopjimmy uses Chinese vendors as well and doubles the price vs buying direct.Last edited by neilc6; 06-26-2022, 09:57 AM.
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Re: LG 47LN5400 Replacement backlights
Originally posted by Helikvar View Post.Set was purchased on Ali-express and had the aluminum backs.I think the originals had copper backs .
The copper in original is thin layer, the rest is FR4 which is not good heat conductor.
Still aluminum strips is not a guarantee as it depends on quality of LEDs and assembly.
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