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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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faulty Acer 22" monitor
hi there.
Can you help? I've patched up this inverter with generic power/If matched compatible transistors but they are getting rather warm compared with the "good" side although the inverter works fine. It uses 2 each of P2804BDG and 2 each of P5504EDG P and N channel MOSFETs in a half bridge arrangement, one side of the inverter has both transistors dead shorted with blown capacitors (100uF 35V) A couple of the inverter transformers look like they have been overheating, but this could be due to the FET's. replaced all parts but I really need to make sure its going to last as this monitor sees a lot of use 24/7. thanks, -Andre |
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