Archived from groups: comp.sys.ibm.pc.hardware.video (More info?)
Dilbert:
A customer brought in a Viewsonic VP140 LCD monitor for repairs.
A lot of streaking in the picture.
I opened it up and started checking the small surface mounted electrolytic
capacitors on the main circuit board. I used a capacitor ESR meter and
found 24 out of 49 to have high ESR readings. I have not ordered the
replacement capacitors as yet, but I strongly feel that this is the
cause of the streaking. You might want to check your capacitors.
Hope this helps.....
John
Archived from groups: comp.sys.ibm.pc.hardware.video (More info?)
John Gill wrote:
>Dilbert:
>A customer brought in a Viewsonic VP140 LCD monitor for repairs.
>A lot of streaking in the picture.
>I opened it up and started checking the small surface mounted electrolytic
>capacitors on the main circuit board. I used a capacitor ESR meter and
>found 24 out of 49 to have high ESR readings. I have not ordered the
>replacement capacitors as yet, but I strongly feel that this is the
>cause of the streaking. You might want to check your capacitors.
>Hope this helps.....
>John
>
Archived from groups: comp.sys.ibm.pc.hardware.video (More info?)
> ok thanx for the tip on the capicitors.
>
> . 24??? wow, that's half of its bank.
>
> how much do those capacitors cost?
They usually run from about 14 cents to 25 cents each.
They can be purchased at Jameco, MCM, or Newark Electronics.
Most vendors have about a $20.00 minimum order.
John
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