Friends set not turning on and first thing I hear is three clicks pause three clicks. Plenty about this on forums here but like many posts often end before conclusive result recorded.
So I have downloaded the training manual dated 8/2010 for the model and note that this set from around 5/2010 has a different main board to that shown in manual. The set made in Korea may be reason why. Did manage to get the power supply working once (possibly problem is intermittent) and all voltages including Vs/Va were OK. Set turned itself off just as I finished voltage checks. While set on the control board led flashed a pattern short/short/long/short/long but no mention of codes or flash pattern in manual. Tried start with Ysus and thus X side disconnected - no go. Tried force PSU on per manual and it did turn on once but then no more - again outputs OK when on. Can't recall any sign of front led coming on at all but of course it wouldn't when main disconnected and I may have just missed it.
So it looks like PSU problem. Have checked the two top white resistors and they read OK. Will have to remove the usual suspect diode to test it as associated resistor very low ohm. It does look as if capacitor in that area is a replacement as different to all others on that board. Will probably have to buy a parts set to fix but do note they vary and in one case just a series of several smd resistors.
Any thoughts and advice appreciated as only my second LG plasma and the first is still awaiting my attention (both Y and X shorted).
So I have downloaded the training manual dated 8/2010 for the model and note that this set from around 5/2010 has a different main board to that shown in manual. The set made in Korea may be reason why. Did manage to get the power supply working once (possibly problem is intermittent) and all voltages including Vs/Va were OK. Set turned itself off just as I finished voltage checks. While set on the control board led flashed a pattern short/short/long/short/long but no mention of codes or flash pattern in manual. Tried start with Ysus and thus X side disconnected - no go. Tried force PSU on per manual and it did turn on once but then no more - again outputs OK when on. Can't recall any sign of front led coming on at all but of course it wouldn't when main disconnected and I may have just missed it.
So it looks like PSU problem. Have checked the two top white resistors and they read OK. Will have to remove the usual suspect diode to test it as associated resistor very low ohm. It does look as if capacitor in that area is a replacement as different to all others on that board. Will probably have to buy a parts set to fix but do note they vary and in one case just a series of several smd resistors.
Any thoughts and advice appreciated as only my second LG plasma and the first is still awaiting my attention (both Y and X shorted).
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