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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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#1
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Sony Multiscan 400PS Monitor
I have been living with this monitor with the failed IC007, CXA2043Q,
for more than 2 years. Now I have got a different problem, please have a look at this picture : http://temp.web-epoch.com/sony.jpg Could anyone please let me know as close as possible the source of this trouble, or still better, if you have the schematics for this Monitor, let me know which area of the circuit board or what component to look for. Any help would be greatly appreciated. I also like to know if this new symptom in anyway connected with the failed IC. I have been thinking of practicing soldering the SMDs but it seems I now have to bite the bullet and practice soldering SMDs before I tackle this IC. |
#2
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Sony Multiscan 400PS Monitor
On Mon, 03 Apr 2006 13:49:30 GMT, bigdaddy
wrote: I have been living with this monitor with the failed IC007, CXA2043Q, for more than 2 years. Now I have got a different problem, please have a look at this picture : http://temp.web-epoch.com/sony.jpg Could anyone please let me know as close as possible the source of this trouble, or still better, if you have the schematics for this Monitor, let me know which area of the circuit board or what component to look for. Any help would be greatly appreciated. I also like to know if this new symptom in anyway connected with the failed IC. I have been thinking of practicing soldering the SMDs but it seems I now have to bite the bullet and practice soldering SMDs before I tackle this IC. That picture looks like what a failed CXA2043Q could cause. I suspect the partially failed IC just got worse. It might be worth checking for bad caps in the power supply, but the CXA2043Q is the most likely cause. It's not too hard to replace if you have a fine point tip and a temperature controlled soldering iron. Use a sharp xacto knife to cut the pins off at the IC's body, then remove the pins from the board and clean the pads with solder wick. Be careful not to cut any circuit board traces with the xacto knife. Practicing on a scrap board is a good idea. Removing the old part without damaging the board will be the hardest part. Andy Cuffe |
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