Hi all,
I have problem with this monitor - when I turn monitor on, it works only few minutes (approximately 5-30 min) and then backlight turn off, LED lights green, picture stay on. I measured all electrolytic capacitors on power board and all are ok, but I only replace small 47uF capacitors with a little increased ESR.
5V to logic board is ok, to inverter go 13.9V, on logic board are of course good voltages - 1.8 and 3.3V. I think the some ccfl tube is defective or only some wire had bad contact, but why it runs few minutes? Previously when I had problem with tubes it stays on only 1-2 seconds.. I add some photos when I arrive home. Could you advise me? Thanks for answer!
Denis.
I have problem with this monitor - when I turn monitor on, it works only few minutes (approximately 5-30 min) and then backlight turn off, LED lights green, picture stay on. I measured all electrolytic capacitors on power board and all are ok, but I only replace small 47uF capacitors with a little increased ESR.
5V to logic board is ok, to inverter go 13.9V, on logic board are of course good voltages - 1.8 and 3.3V. I think the some ccfl tube is defective or only some wire had bad contact, but why it runs few minutes? Previously when I had problem with tubes it stays on only 1-2 seconds.. I add some photos when I arrive home. Could you advise me? Thanks for answer!
Denis.
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