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Equipment Repairs => PLASMA TV forum => Topic started by: graybe on September 01, 2012,14:57:11

Title: lg 50ps3000 screen dead but gets audio
Post by: graybe on September 01, 2012,14:57:11

please can someone give me an idea on how to fix my lg 50ps3000.
it turns on and you get audio but the screen stays blank. ihave replaced the y sus board but  no difference still screen is dead.

Title: Re: lg 50ps3000 screen dead but gets audio
Post by: Baileybum1234 on September 18, 2012,14:10:20

I dont have the answer mate, but do you hear clicks on/off on/off from the relays?  Im just having simular problems with the LG 50PQ6000 possibly simular boards??

Title: Re: lg 50ps3000 screen dead but gets audio
Post by: rap1d61 on April 22, 2013,09:35:56

Try taking out the upper buffer board....... This should light up the lower section.
If this does not work replace & take out the lower buffer.
This should light up the top section of the screen.
***Remember the board has to be removed so as no contacts can be made.***

Title: Re: lg 50ps3000 screen dead but gets audio
Post by: tv tony on April 25, 2013,10:48:31

Why do you suspect the y-sus so early in your diagnosis, is the psu supplying vs and va supplies, or have you been watching youtube videos?

Title: Re: lg 50ps3000 screen dead but gets audio
Post by: clark97 on June 08, 2013,13:35:20

Check q13 14 and 15 on Z sus for s/c theres a kit available from ohmsupplies if they are short.

Title: Re: lg 50ps3000 screen dead but gets audio
Post by: clark97 on July 10, 2013,18:30:34

Just had one in with same fault, this time it was t-con which is quite common on these.

Title: Re: lg 50ps3000 screen dead but gets audio
Post by: clark97 on July 14, 2013,09:13:54

Failing that check your y-buffers.

Title: Re: lg 50ps3000 screen dead but gets audio
Post by: rap1d61 on July 23, 2013,06:36:42

In answer to TV TONY......... Because i've had 3 in with the same fault... UPPER BUFFER BOARD. :c017:

Title: Re: lg 50ps3000 screen dead but gets audio
Post by: marky mark on July 24, 2013,15:06:05

I thought Tony the TV was the LG expert?  The PG would be more buffers, the PS more x-sus, I've had a look on a forum I get access to & they both seem common sets, I think its the same Tony gets his info from.  :93:

Title: Re: lg 50ps3000 screen dead but gets audio
Post by: tv tony on August 08, 2013,09:40:33

ive worked for lg for 10 years, sony for 25 and had a total of 40 years in the trade, im hanging up my cap in 5 years, im off, see you all in the pub