Hi all
I have the above TV which displays no picture and produces no sound. From a cold boot the set displays the LG Life's Good logo for a second on what appears to be a good screen with even backlight spread. This then disappears after approx 1 second followed by the screen illuminating again at approx half the brightness of that previously (no logo) for a further second, then completely dark screen. The power led is illuminated in unison with the initial screen activity, then stays extinguished. Changing channel flashes the power led in response, then is extinguishes again. When n standvy the power led is permanently on. No sound with an aerial plugged in at all, nor any faint image on the screen detected.
On the power board there is an led labelled LD701. This flashes 4 times over approx 2 seconds, followed by a gap of 6 seconds and then repeats. No caps appear to be bad, but that's only from a visual perspective. Where a small ribbon leaves the power board and goes to the screen itself there are 2 test points marked 'P210 LED+' and 'P211 GND'. I read 54Vdc between these pins
Anyone had any experience with this model or able to offer a pointer to allow me to attempt to fix. I have attached some photos to assist, which in order of attachment are the back of the whole tv, the power board, the main board, and what I assume to be the timing control board.
Thanks in advance.
prober
I have the above TV which displays no picture and produces no sound. From a cold boot the set displays the LG Life's Good logo for a second on what appears to be a good screen with even backlight spread. This then disappears after approx 1 second followed by the screen illuminating again at approx half the brightness of that previously (no logo) for a further second, then completely dark screen. The power led is illuminated in unison with the initial screen activity, then stays extinguished. Changing channel flashes the power led in response, then is extinguishes again. When n standvy the power led is permanently on. No sound with an aerial plugged in at all, nor any faint image on the screen detected.
On the power board there is an led labelled LD701. This flashes 4 times over approx 2 seconds, followed by a gap of 6 seconds and then repeats. No caps appear to be bad, but that's only from a visual perspective. Where a small ribbon leaves the power board and goes to the screen itself there are 2 test points marked 'P210 LED+' and 'P211 GND'. I read 54Vdc between these pins
Anyone had any experience with this model or able to offer a pointer to allow me to attempt to fix. I have attached some photos to assist, which in order of attachment are the back of the whole tv, the power board, the main board, and what I assume to be the timing control board.
Thanks in advance.
prober
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