[TechAssist] Re: Sanyo DS25204 No vertical
- From: "Terry J Hutchison" <sony1@xxxxxxxx>
- To: techassist@xxxxxxxxxxxxx
- Date: Mon, 11 Apr 2005 22:17:10 -0400
Just a foot note, if the serial number of that Sanyo confirms it is less
than a year old you can get any parts you need free from Sanyo, just call
the number on the remote. Just food for thought. Terry
> [Original Message]
> From: John <maintv2004@xxxxxxxxxxx>
> To: <techassist@xxxxxxxxxxxxx>
> Date: 4/11/2005 1:48:22 PM
> Subject: [TechAssist] Re: Sanyo DS25204 No vertical
>
> Yes, +26 volts. In this set it comes from the SMPS, not from the flyback.
> This is a newer set, less than a year old. I do not have an exact
> schematic, I was using Sams 4801. It is for the same chassis number but
my
> model has a VM after it (vertical modified? Just guessing) Usually if
the
> horizontal is running, there will also be a vertical drive. I just wanted
> to verify the correct pin for vertical drive from IC101. It may be
possible
> the set is in some kind of service mode. I do not have the original
remote.
> I think I will call the customer to bring it in. This set should be in
> warranty but he said he "lost the receipt". That always makes me wonder.
> Thanks, John.
>
> John Mielke
> Main TV
> Longmont, Co.
> www.longmontmaintv.com
> 303 776 6955
>
> ----- Original Message -----
> From: "Terry J Hutchison" <sony1@xxxxxxxx>
> To: <techassist@xxxxxxxxxxxxx>
> Sent: Saturday, April 09, 2005 10:15 PM
> Subject: [TechAssist] Re: Sanyo DS25204 No vertical
>
>
> > Do you have B+ to the vert IC? Don't mean to insult your intelligence,
> but
> > you could also check the diode that connects pin 1 or 7 to the other let
> of
> > the vert IC to see if the volts are present there to. I have also seen
a
> > bad tuner cause a loss of vert in those older Sanyo's you can desolder
the
> > tuner and see if you get your scan back. Hope this helps and let me
know
> > about the B+.
> > Terry
> >
> >
> > > [Original Message]
> > > From: John <maintv2004@xxxxxxxxxxx>
> > > To: <techassist@xxxxxxxxxxxxx>
> > > Date: 4/9/2005 5:16:19 PM
> > > Subject: [TechAssist] Sanyo DS25204 No vertical
> > >
> > > I'm working on a Sanyo DS25204 (chassis 25204-01) made in 2004. I
have
> > ho vertical but high voltage and sound are OK. I do not see a drive
> > waveform out of IC101 pin 26. I have isolated that pin from any shorts.
I
> > do not have the exact schematic. Can someone verify that pin 26 is the
> > vertical drive out of this chip (LA76843N) or have any suggestions as
to
> > what could be wrong. I find it strange that everything works except the
> > vertical. TIA, John.
> > > John Mielke
> > > Main TV
> > > Longmont, Co.
> > > www.longmontmaintv.com
> > > 303 776 6955
> > >
> > >
> >
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