Question about LG 42PX5D 42 in. Plasma HDTV
I was wondering if you could help me in diagnozing a problem that I have with my 42" LG plasma tv (RU-42PZ61).
The initial problem started with two vertical red bars ~2" on each side that would occasionally go away and then return.
By poking around I found to be a possible cold solder joint on the control board (6871QCH038A). By wedging a piece of wood behind the board it would work ok for quite a while. Until one day the image detriorited completly. I believe that I heard a pop one day. I ordered a replacement for this board w/ a different part # (6871QCH060Q) that they said replaces the old one ($240 outch..).
The board replacement did not fix it completly; now it has verticall lines of all colors.
(When I switch to an input that has no signal, the screen reduces to a narrow vertical strip of about 6 or 8"). So I believe that another board was also damaged. (sound is ok)
How can I determine what board is at fault?
On the tuner board (6870VS1984E) there is an led that flashes near the (eeprom?) long IC on a socket. I don't have the service manual for this set.
I will be very thankful to any help that you could provide me with.
6871QCH038A......I replaced this board with one bought at Parts Store.com for 112.00, number 6871QCH038C. Set now works like new with no problems. If this is such a wide spread problems with these sets, LG should have done something to help....
Posted on Oct 08, 2009
Never buy LG products again !
Posted on Sep 06, 2008
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Posted on Jan 02, 2017
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