[TechAssist] Re: JVC AV36260 G2 Drift
- From: MDileo0000@xxxxxxx
- To: techassist@xxxxxxxxxxxxx
- Date: Thu, 19 Aug 2004 18:25:45 EDT
That ceramic cap only needs 20 to 30 megs of leakage to ground to pull the
G2 line down enough to cause the fluctuation.Porous/cracked overcoat or
impurities in the disc substrate can produce such leakage.
Dominic DiLeo
Atlantic TV
Freeport, Maine
~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
In a message dated 8/19/04 8:23:02 AM Eastern Daylight Time,
jstielau@xxxxxxxx writes:
<< Possible , but I'd think if it was the case it would drag the G2 down and
darken the image.
==========================
Jeff Stielau
Shoreline Electronics Repair
344 East Main Street
Clinton,CT 06413
860-399-1861
860-664-3535 (fax)
jstielau@xxxxxxxx
========================
"If you push something hard enough it will fall over."
Fudd's First Law of Opposition - Sir Sidney Fudd
----- Original Message -----
From: <MDileo0000@xxxxxxx>
To: <techassist@xxxxxxxxxxxxx>
Sent: Wednesday, August 18, 2004 2:13 PM
Subject: [TechAssist] Re: JVC AV36260 G2 Drift
> Jeff,
>
> There may be a leaky 1000 pf ceramic cap on the G2 line(CRT board) causing
> the drift.
>
> Dominic DiLeo
> Atlantic TV
> Freeport, Maine
> ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
>
> In a message dated 8/18/04 1:02:17 PM Eastern Daylight Time,
> jstielau@xxxxxxxx writes:
>
> << Make : JVC
> Model : AV36260
> Problem : Set was coming on OK but would immediately go to bright white
> washed out image then shut down.
>
> Apparently the G2 setting on the flyback had drifted grossly enough to
cause
> this as we turned down the G2 control and the fired the set up , the
> readjusted.
>
> Customer said set was fine one day then the next morning exhibited this
> problem.
>
> Just curious if anyone else has seen the G2 drift this much on these
newer
> JVC models?
>
> If so , did the basic readjustment prove to be long lasting fix?
>
> ==========================
> Jeff Stielau
> Shoreline Electronics Repair
> 344 East Main Street
> Clinton,CT 06413
> 860-399-1861
> 860-664-3535 (fax)
> jstielau@xxxxxxxx
> ======================== >> >>
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