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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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Strange problem with Viewsonic E771
I received 2 of these from a buddy in hopes I could fix them. One of them
had a squealing flyback so i swapped it out and now the pictures pulses, for lack of a better description. It stays in place growing slightly larger and brighter until the background turns gray at which time it starts the cycle over again--I would say each cycle takes 1/2 sec or less. Anyone have any tips on where to start looking for problems--I'm thinking bad caps but my ESR meter hasn't shown up yet :P thanks as always! |
#2
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Update:
still have pulsing and have checked all the caps with an ESR--no bad ones. Any ideas whatsoever? anyone? "S" wrote in message news:1110334769.30b1352d1e5c37de3e094fc5276b15de@t eranews... I received 2 of these from a buddy in hopes I could fix them. One of them had a squealing flyback so i swapped it out and now the pictures pulses, for lack of a better description. It stays in place growing slightly larger and brighter until the background turns gray at which time it starts the cycle over again--I would say each cycle takes 1/2 sec or less. Anyone have any tips on where to start looking for problems--I'm thinking bad caps but my ESR meter hasn't shown up yet :P thanks as always! |
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