Hello
Got this one to repair. The symptoms are, it flickers when turned on and keeps flickering. Opened the back cover but couldnt find any bad cap. This one requires 12V DC external supply, I did not have one so used a computers power supply and connected dc jack to it to power up the Monitor/TV.
It fired up but the screen shows plain raster with continuous flicker. Thought of bad CCFL as well, I had spare CCFL from some TV so used that to check it, the good CCFL were also flickering. The inverter has OZ960 chip, and 2 CCFLs.
As I have 2 extra CCFLs it helped in checking this. I had little surprise in checking. My thought is if only one CCFL is connected and other not, then the inverter should sense missing or broken CCFL and should power up once and should go black. But it did not happen, it kept flickering 1 CCFL - the only one connected.. ??
Is it normal?
I have checked both the transformers, they are good, secondary impedence/resistance shows upto some 976 etc on both and seems ok.
couldnt get a clue to find fault further?
Got this one to repair. The symptoms are, it flickers when turned on and keeps flickering. Opened the back cover but couldnt find any bad cap. This one requires 12V DC external supply, I did not have one so used a computers power supply and connected dc jack to it to power up the Monitor/TV.
It fired up but the screen shows plain raster with continuous flicker. Thought of bad CCFL as well, I had spare CCFL from some TV so used that to check it, the good CCFL were also flickering. The inverter has OZ960 chip, and 2 CCFLs.
As I have 2 extra CCFLs it helped in checking this. I had little surprise in checking. My thought is if only one CCFL is connected and other not, then the inverter should sense missing or broken CCFL and should power up once and should go black. But it did not happen, it kept flickering 1 CCFL - the only one connected.. ??
Is it normal?
I have checked both the transformers, they are good, secondary impedence/resistance shows upto some 976 etc on both and seems ok.
couldnt get a clue to find fault further?
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