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Electronics Repair (sci.electronics.repair) Discussion of repairing electronic equipment. Topics include requests for assistance, where to obtain servicing information and parts, techniques for diagnosis and repair, and annecdotes about success, failures and problems. |
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Help: ACER 19" monitor model 7299SL arking in the CRT socket
I have this 19" monitor with this problem;
There is arking in the CRT socket ? I have removed it from the tube and it still arks? I have looked for shorted capacitors but I don't see any? any help appreciated, maybe you have fixed a couple with this problem? |
#2
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ACER 19" monitor model 7299SL arking in the CRT socket
Where is it precisely ?
"Aslaner" a écrit dans le message de ... I have this 19" monitor with this problem; There is arking in the CRT socket ? I have removed it from the tube and it still arks? I have looked for shorted capacitors but I don't see any? any help appreciated, maybe you have fixed a couple with this problem? |
#3
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ACER 19" monitor model 7299SL arking in the CRT socket
It is just about anywhere inside the socket. I have removed the red wire
from the flyback and it started arcing elsewhere. This is definetly a problem where the high voltage is way too high. This is obviously a bad design since most monitor go into shutdown if anything happens with high voltage too high? Without a diagram I have ahardtime figuring out where the regulator is. I see an IC around the power supply that is a SLA6046 which I think is involved with the regulation (5 N-channels) I think that somehow it the current load on the high voltage is fed back into that IC. I can't be certain without a diagram. Bad design for sure, "noisette" wrote in message ... Where is it precisely ? "Aslaner" a écrit dans le message de ... I have this 19" monitor with this problem; There is arking in the CRT socket ? I have removed it from the tube and it still arks? I have looked for shorted capacitors but I don't see any? any help appreciated, maybe you have fixed a couple with this problem? |
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