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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Old July 11th 03, 01:51 AM
Aldo Barrios
 
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Default 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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Old July 11th 03, 06:41 PM
techforce
 
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Default 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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