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Packard Bell A720 odd problem

B

Bart Bervoets

Jan 1, 1970
0
Monitor picture too wide and bent on the sides, you can push the buttons
and see the adjuster
slide but it has no effect.
Any suggestions on what commonly fails?

Bart Bervoets
 
W

William R. Walsh

Jan 1, 1970
0
Hi!
Monitor picture too wide and bent on the sides, you can push the buttons
and see the adjuster
slide but it has no effect.
Any suggestions on what commonly fails?

The fifteen inch versions of these monitors usually have capacitors go bad.
I've also found cold solder joints inside.

If you need to make internal adjustments don't expect to find much if
anything inside these. They are very cheap monitors.

William
 
B

Bart Bervoets

Jan 1, 1970
0
James said:
I fixed a monitor with this problem once and it was a bad transistor that
controlled the pincussion. I found it by probing each pin of the CPU chip in
the monitor until I found one with a voltage that varied with the slider on
the screen, then I traced that to the transistor it drives and that was the
problem.
Oh, i like that, will try that.

Bart Bervoets
 
J

James Sweet

Jan 1, 1970
0
Bart Bervoets said:
Monitor picture too wide and bent on the sides, you can push the buttons
and see the adjuster
slide but it has no effect.
Any suggestions on what commonly fails?

Bart Bervoets


I fixed a monitor with this problem once and it was a bad transistor that
controlled the pincussion. I found it by probing each pin of the CPU chip in
the monitor until I found one with a voltage that varied with the slider on
the screen, then I traced that to the transistor it drives and that was the
problem.
 
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