[TechAssist] Re: help with toshiba cf27h50
- From: "derouin" <derouin@xxxxxxxxxxxxxxxxx>
- To: <techassist@xxxxxxxxxxxxx>
- Date: Tue, 29 Jan 2002 15:32:15 -0800
Thank You I have found the trouble It seems someone removed the tuner and
when they did they opened a trace from pin 10 of tuner to the switch ic QV01
which applies the audio from the tuner to the input of the switch.
Thank everyone for the help and suggestions on this set. Ps If you get one
of these sets in with the following trouble replace c449 the filter off the
12 volt source from the flyback the symptons will be as follows.
No audio while using the tuner or external inputs.
blinking of the power led
cycles through red, green, and blues screen
Vertical height fluctuates with line in picture.
this set had all these symptons the filter corrected
Jim Brown
----- Original Message -----
From: "GARY AND JUANITA CHAMBERS" <gchambe3@xxxxxxxxxxxxxxx>
To: <techassist@xxxxxxxxxxxxx>
Sent: Tuesday, January 29, 2002 3:05 PM
Subject: [TechAssist] Re: help with toshiba cf27h50
>
> on some toshibas, there is a multiplex sub-board that has bad connections
> where the pins soldered to the bottom of the board are attached.you may
want
> to unsolder the board and inspect for this.
> Gary
> CHAMBERS TV
> BRADENTON,FL
> SINCE 1982
> ----- Original Message -----
> From: derouin <derouin@xxxxxxxxxxxxxxxxx>
> To: <techassist@xxxxxxxxxxxxx>
> Sent: Tuesday, January 29, 2002 3:21 PM
> Subject: [TechAssist] Re: help with toshiba cf27h50
>
>
> >
> > Yes have checed for switch on back and in menu I am having trouble
tracing
> > the signal through the set. I feel extremely dumb on this one.
> > thanks
> > ----- Original Message -----
> > From: "Phillip R. Hull" <phil245@xxxxxxxxxxxxx>
> > To: <techassist@xxxxxxxxxxxxx>
> > Sent: Tuesday, January 29, 2002 12:09 PM
> > Subject: [TechAssist] Re: help with toshiba cf27h50
> >
> >
> > >
> > > Did you check for speaker switch on back. or in the audio menu???
> > > Phillip R Hull
> > > phil245@xxxxxxxxxxxxx
> > > ----- Original Message -----
> > > From: "service" <derouin@xxxxxxxxxxxxxxxxx>
> > > To: <techassist@xxxxxxxxxxxxx>
> > > Sent: Tuesday, January 29, 2002 3:01 PM
> > > Subject: [TechAssist] help with toshiba cf27h50
> > >
> > >
> > > > I need some help with a toshiba tv. It came in with distored
picture
> > and
> > > vertical and no audio. I repaired the bad video and audio by
replacing
> > c449
> > > off the 12volt supply still no audio. The voltages to the audio out
are
> > all
> > > correct. I can't seem to trace how the audio gets to the stereo
decoder
> > any
> > > help would be appreciated.\
> > > > Thanks in advance
> > > > Jim Brown
> > > >
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