[TechAssist] Re: Pana.CTH-1942R out of sync.
- From: "Jorge Miret" <jmiret@xxxxxxxx>
- To: <techassist@xxxxxxxxxxxxx>
- Date: Mon, 21 Jan 2002 03:56:41 -0400
Thanks Dan will check later.
Jorge.
----- Original Message -----
From: Webster TV <webstertv@xxxxxxx>
To: <techassist@xxxxxxxxxxxxx>
Sent: Monday, January 21, 2002 1:02 PM
Subject: [TechAssist] Re: Pana.CTH-1942R out of sync.
>
> Jorge,
>
> Check and see if this set has a capacitor #C805 hooked to pin 4 of the
> flyback, it should be 33mfd-160v. If it does replace it, these were a
common
> failure in older Quasar/Panasonic sets. Usually when this cap goes bad it
> increases the Bplus voltage from 123v to the 140's and causes set to go
into
> overvoltage protection (horiz. lines).
>
> Dan Webster
> Webster's TV
> Shullsburg, Wi.
> ----- Original Message -----
> From: Jorge Miret <jmiret@xxxxxxxx>
> To: <techassist@xxxxxxxxxxxxx>
> Sent: Sunday, January 20, 2002 3:36 AM
> Subject: [TechAssist] Pana.CTH-1942R out of sync.
>
>
> >
> > Hi guys:
> > I have a Panasonic Model CTH-1942R (a little old) and have no schematic
> for
> > it,is Sams 2538.
> > The problem is that is out of hor.sync but if I lower the input to
around
> > 80v will play ok,so I think
> > that it is not regulating ?.I replace q801 (scr) and check caps around
but
> > dont find anything wrong,even check resistor and are ok.If somebody
could
> > send me the regulator area to verify or any tips I will appreciate it.
> > TIA and have a good weekend.
> > Jorge.
> > Jorge Miret-Puerto Rico
> > J.C.Video & P.C.Repair
> > Tel:787-761-0920.
> > jmiret@xxxxxxxx
> >
> >
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