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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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Dell M991 monitor question
Hi all,
I'm having a bit of trouble repairing a Dell M991 19" computer monitor (chassis CM2519, hardly 3 years old). It wouldn't start up, and it turned out that the flyback FET + drain series diode (an IRF640 and a 31DF06, respectively) were shorted. After replacing these parts, the monitor seemed to be fine - at least during the VGA boot screen. As soon as the screen resolution changed, both components immediately failed again. I can't find any other broken or even suspect components, and without a schematic diagram or service manual, it's impossible to determine what else could be wrong. A search by Google didn't turn up anything either. Before I thrown this one in the bin, I'd like to know if anyone here might have an idea where I could look for a solution. Any suggestions are appreciated. Regards, Richard Rasker -- Linetec Translation and Technology Services http://www.linetec.nl/ |
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