[TechAssist] Re: Toshiba Md# TP50F61, TAC9675
- From: "Damon" <DamonEB@xxxxxxxxxxx>
- To: <techassist@xxxxxxxxxxxxx>
- Date: Sun, 01 Jan 2006 03:33:50 -0500
That sounds more like the large resistors for the yoke's ground path are
open.
Damon B
Telrad Electronics
Fort Wayne IN
----- Original Message -----
From: "Premium Technologies" <premtech@xxxxxxxxxxxxxx>
To: <techassist@xxxxxxxxxxxxx>
Sent: Sunday, January 01, 2006 2:11 AM
Subject: [TechAssist] Re: Toshiba Md# TP50F61, TAC9675
> Thanks for the feedback Al, I took a third look and I don't think that's
my problem. I'm
> thinking maybe the driver Q719, which is a TA75559P different than the
other two which are
> Motorola chips. Although I'm not quite convinced that the driver would
allow the red to
> adjust up/down and not left/right. In the convergence menu with the grid
on the screen red
> is acutely bowed in from both sides. I'm also thinking it could be a bad
or corrupted eprom
> Q713...
> I could really use a schematic and parts list here if anyone has one.
Otherwise I'll call
> Toshiba on Tuesday and see if I can get through to technical.
> Thanks again Al, much appreciated.
> Bill
>
> William Rayburn, CET
> Premium Technologies
> PO Box 442
> Long Beach, WA. 98631
> 360-642-4993
>
> ----- Original Message -----
> From: "Al Gutz" <alg@xxxxxxxxxxx>
> To: <techassist@xxxxxxxxxxxxx>
> Sent: Saturday, December 31, 2005 6:02 PM
> Subject: [TechAssist] Re: Toshiba Md# TP50F61, TAC9675
>
>
> Bill
> I am not sure of the model but I recall a toshiba of about that vintage
> where one of the traces that goes by a large ground trace below the heat
> sink for the STKs was either open or had carboned the board over the the
> ground trace causing a short. I replaced the STKs twice before I found
> the short.
>
> Al G
>
> Premium Technologies wrote:
> > Hi Guys,
> > Need a service manual on this one or at least the schematics and parts
list. This unit
> > came in dead. Replaced the convergence amps and got it back up and
running, but red is
> > out of alignment and will not move left or right. It will adjust up and
down though.
> > I checked Toshiba site and didn't find the manual for this on their
site.
> > Help appreciated.
> > Bill
> > William Rayburn, CET
> > Premium Technologies
> > PO Box 442
> > Long Beach, WA. 98631
> > 360-642-4993
> >
>
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