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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Michele Smith
 
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Default wavey image

Hi. I have a b/w monitor that has a rolling wave than travels from the
bottom to the top after it has been turned on for a few minutes. Thanks.
Mark.

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Sam Goldwasser
 
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Michele Smith writes:

Hi. I have a b/w monitor that has a rolling wave than travels from the
bottom to the top after it has been turned on for a few minutes. Thanks.
Mark.


If it's running at an NTSC scan rate and the wave has a period of about
15 seconds, it's probably a bad power supply filter capacitor or 60 Hz
getting into the video.

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Jerry G.
 
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This is usually from bad caps in the power supply. After servicing, it
should be okay.

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Jerry G.
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"Michele Smith" wrote in message
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Hi. I have a b/w monitor that has a rolling wave than travels from the
bottom to the top after it has been turned on for a few minutes. Thanks.
Mark.


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