I this case, there is no short or anything like that in the PS / LED driver, so fix that what you know is broken (the caps). I'd be changing those 3 caps C523, 524 and 525 and see if that problem went away. Caps are cheap.
Back to the X602 connector. There should be something like 30V to 70V there. Try to measure that again with both meter leads on those 2 pins. Then try the same thing again with the connector unplugged. What does the back light do when you turn on the tv? Does it come on for a brief period and turn off, or is it off all the time? Another idea is that the backlight cable is shorted out to the chassis.
btw... 36$ buys a new power supply / led driver board.
What is the TV doing now? Does it turn on? Is there something on the LCD and sound, but no backlight? Is the backlight trying to come on, flickering or something? If you have a good board and you get something on the LCD itself and sound, then there is only 2 more things. Either a LED wiring harness problem or a LED has burnt out. But I asked you questions already on my last post, I didn't get any answer for.
Anyone have any clue to the actual issue that all these tv's seem to inevitably face?..(seems quite common sadly..) and "nomadder I'd have to wager against your fix lasting too terribly long sadly...(happy to be wrong though!)
Pretty obvious they are designed to fail.... overheating seems a "large" concern.
..grandfather wanted me to order a new power board. not worth his money imo.
Capacitors are not equal... there are good ones and there are bad ones. We don't know what brand, what series and what temperature rating he put in. If he had replaced them with a generic capacitor that is only good for 85C, 3 weeks sounds about right!
Capacitors are not equal... there are good ones and there are bad ones. We don't know what brand, what series and what temperature rating he put in. If he had replaced them with a generic capacitor that is only good for 85C, 3 weeks sounds about right!
Kinda assuming that was aimed at me:
"Nippon Chemi-Con Hi Temp 105°C
47uF 100 volt 20% radial leaded electrolytic capacitors."
Were those a terrible choice?
Idk, there's not much info on this tv on the net.. only people replacing caps/whole power supply with the problem still persisting that I can find... thoughts?
Maybe make your own tread, put in some hi res pictures of your boards, describe exactly what your TV is doing or not doing, provide measurements with pin out on the connector that goes from the PSU to the main board, service manual etc.
That will wake more interest in things. Since your TV isn't working anymore, we have to start again at square one.
Anyone have any clue to the actual issue that all these tv's seem to inevitably face?..(seems quite common sadly..) and "nomadder I'd have to wager against your fix lasting too terribly long sadly...(happy to be wrong though!)
Pretty obvious they are designed to fail.... overheating seems a "large" concern.
..grandfather wanted me to order a new power board. not worth his money imo.
Here is what I found with this TV. LED's have bad connections.
have exact same tv - have apart like yours. can set be turned on without lcd screen attached ? so that the backlight leds come on by themselves ? Or are you applying 50 VDC to X602 to light LEDS ??? thanks
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