[TechAssist] Re: Sanyo DS25204 No vertical
- From: "al m" <ampm@xxxxxxx>
- To: <techassist@xxxxxxxxxxxxx>
- Date: Mon, 11 Apr 2005 22:25:27 -0400
When did that start?
Al Marquardt
ampm@xxxxxxx
Al Marquardt Electronic Repair
206 W Main
Girardville Pa. 17935
----- Original Message -----
From: "Terry J Hutchison" <sony1@xxxxxxxx>
To: <techassist@xxxxxxxxxxxxx>
Sent: Monday, April 11, 2005 10:17 PM
Subject: [TechAssist] Re: Sanyo DS25204 No vertical
> 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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