[TechAssist] Re: Sony 20" monitor Intermittent poor Focus
- From: peggs <peggs@xxxxxxxxxxxxxx>
- To: techassist@xxxxxxxxxxxxx, techassist@xxxxxxxxxxxxx
- Date: Tue, 10 Dec 2002 17:31:46 -0600
This 'divider' has 2 controls F1 and F2.
I ass-ume H and V Focus.
Both H and V Drift, BTW.
I should have mentioned I can turn the set off and
back on,and the Focus is good.
Peggs
At 03:00 PM 12/10/02 -0800, Kevin wrote:
>
>I have no experience with this model, but I have seen computer monitors
>that have focus drift caused by a faulty focus pot. Only way to fix is
>to replace flyback etc. HTH
>
>Kevin Wilks
>Kevin's TV & Video Repair
>Penticton BC Canada
>kevinstv@xxxxxxx
>
>
>-----Original Message-----
>From: techassist-bounce@xxxxxxxxxxxxx
>[mailto:techassist-bounce@xxxxxxxxxxxxx] On Behalf Of peggs
>Sent: Tuesday, December 10, 2002 1:49 PM
>To: techassist@xxxxxxxxxxxxx
>Subject: [TechAssist] Sony 20" monitor Intermittent poor Focus
>
>
>model GDM-F500
>chassis SCC-L03C-A
>Nov. 1998
>'Flat Tube' #M50LPU15X
>This thing has Focus that will Drift very Intermittently.
>It may play for days without drifting.
>It has a seperate Focus 'Divider',which looks like
>just a small version of a Flyback. It has one Lead in
>from the Flyback,and 2 leads out to the Pix Tube Socket.
>The input has 10Kv and each output has app. 5Kv,both
>when the Focus is good and when it's bad.
>Some of the Plugs on the CRT PCB are marked with voltages,all
>of which appear to be fine.
>Are these Tubes known to go bad with poor focus ???
>I'm going to pull the CRT Socket to have a look at it
>
>Peggs
>Peggs' Electronics
>1519 West 2nd Street
>Owensboro,KY 42301
>270-926-4968
>fax 270-686-7399
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Peggs' Electronics
1519 West 2nd Street
Owensboro,KY 42301
270-926-4968
fax 270-686-7399
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