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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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Monitor V1428NI --H.O.T. running too hot and shorting
This is a 14 inch monitor V1428NI that i fixed replacing the hot
(BU2520DF) for a 2SC5296 but it gets too hot. Well it was hot with the BU2520DF too. And it won't accept 800x600 and 1024x768 . Only 640x468. It used to accept the three of them. I have replaced the horizontal driver (IRF620) with no improvement. I have checked caps and resistors near the hot and driver. All test ok. I notice there is a blackened coil, but it is not open. Any ideas. Thanks. |
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Monitor V1428NI --H.O.T. running too hot and shorting
Resolder FBT. If the FBT has a bad Internal Cap, it will shorten life of
HOT. You also could have a Problem in the B+ Boost circuit. Whats the FCC number of the Monitor? "Aldo Barrios" wrote in message ... This is a 14 inch monitor V1428NI that i fixed replacing the hot (BU2520DF) for a 2SC5296 but it gets too hot. Well it was hot with the BU2520DF too. And it won't accept 800x600 and 1024x768 . Only 640x468. It used to accept the three of them. I have replaced the horizontal driver (IRF620) with no improvement. I have checked caps and resistors near the hot and driver. All test ok. I notice there is a blackened coil, but it is not open. Any ideas. Thanks. |
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