Question about LG 37LC7D 37 in. LCD HDTV

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Power supply board blown - LG 37LC7D 37 in. LCD HDTV

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You wil need to replace the power supply board. I could sell you one.
Rudy
rudygoberdhan@hotmail.com

Posted on Nov 22, 2009

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Jan 01, 2016 | Televison & Video

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Wont turn on


If you dont get a power light then chances are its a shorted power supply which has blown the main fuse. Check the fuse if blown replace the power supply board. You can get replacement power boards from www.tvrepairworld.com

Oct 29, 2012 | Element Electronics Televison & Video

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the power supply board will need replacement if it has blown fuses. Replacing the fuses will only cause them too blow again unless the short in the power supply is fixed. You can get replacement power boards from www.tvrepairworld.com

Apr 02, 2012 | Vizio GV47LF Television

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The fuse in my BR 300 ATX power supply has blown, what is its replacement part


You need to replace the fuse and dis connect the power supply to the mother board and turn nit back on and if the fuse blowns again then it is the power supply, that is bad, bou if it blowns only when connected to the mother board, the mother has a bad component on it.

Sep 16, 2011 | Computers & Internet

1 Answer

Popping sound and then the picture went out no sound makes a crackling sound and the blue led light just blinks


Hello

The sound you heard is probably a cap that has blown on the power supply. On plasma tv's some times you can hear the buffers pop but you said this is an LCD and that is USUALLY a blown cap.

The good news is power supply boards can be found on ebay. Or if you have a local electronics guy he can replace them. Sometimes a blown cap just happens, and sometimes its a sign of bigger problems so I tend to replace the board.

If you are comfortable you can take the back panel off, find the power supply board and look for caps with DOMED TOPS or BLOWN OFF TOPS. And then you can be sure. In most cases the power supply board is easy to find, the power cord plugs in to it.

PLEASE PLEASE dont put your fingers where they dont belong, and if you dont know what you are doing call someone who does. No tv is worth calling 911 to get your heart restarted.

Best wishes

Nov 25, 2010 | Televison & Video

1 Answer

I have the red power light, but when i turn it on, it completely shuts off, red light and all. Then i have to unplug it from the back to get the red light back


Hello,

Either power supply problem or blown surface mount fuse on the main board. First check all SMD fuses on the main board, and the fuse on the power supply board. If the power supply board fuse has blown replace it and try again, if it blows again you need to replace the power supply. If the power supply seems OK check all SMD fuses on the main board. There are 7 on the V3 and about a dozen on the V4 / V5 / V6.
NOTE.... you have to open the console to do this ...

I hope this help in solving the problem.....

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1 Answer

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Hi,
Either power supply problem or blown surface mount fuse on the main board. First check all SMD fuses on the main board, and the fuse on the power supply board. If the power supply board fuse has blown replace it and try again, if it blows again you need to replace the power supply. If the power supply seems OK check all SMD fuses on the main board. There are 7 on the V3 and about a dozen on the V4 / V5 / V6.
Good luck...

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1 Answer

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its the problem in the capacitors and the--- ics--- on the main power supply boards.as some of the caoacitors and --ics--- are blowned out or bulged up on the board and not supporting the tv to start normally.so please check the board and get the faulty one replaced and also check for the blowned out fuses on the power supply board.as the blown fuses can also cause this problem.

Sep 24, 2008 | Televison & Video

1 Answer

Flash red and shut down


either any of the capacitors or --ics-- are blown off on the main power supply board or the fuse on the power supply board is blown out.so please check on the power supply board and get replaced the necessary.the unit is perfect but replacement is necessary.the same problem is faced by many of the clients and after replacement it works properly.
do not worry.

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