Philips 107B computer monitor -- slow to focus

[dddd]

I've a Philips 107B computer monitor which takes a few seconds ( 5-10
s) for the picture to focus. This happens when I initially turn it
on, or after it's coming from the stand-by. I assume it's a problem
with a bad electrolytic cap in the supply or focus circuit somewhere.
Could someone please look up this model in the tips database before I
rip it open and start ESR checks ? Thanks!

 

[Jerry G.]

It is very common that this problem can come from a slow warming CRT, or the
HV module (usually part of the flyback) is taking a long time to come up to
operation.

If you have an HV probe, you can monitor the focus voltage to see if it is
drifting slowly when starting up.

--

Greetings,

Jerry Greenberg GLG Technologies GLG
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"dddd" <aol@yo.cm> wrote in message
news:i73gpvoav2qeh1h87q2e0rb9vp0ee0j7ta@4ax.com...
I've a Philips 107B computer monitor which takes a few seconds ( 5-10
s) for the picture to focus. This happens when I initially turn it
on, or after it's coming from the stand-by. I assume it's a problem
with a bad electrolytic cap in the supply or focus circuit somewhere.
Could someone please look up this model in the tips database before I
rip it open and start ESR checks ? Thanks!