[TechAssist] Re: Sanyo TV - DS27510 - Won't turn OFF - Followup
- From: "David Lessard" <mr_fixit@xxxxxxxxxxxx>
- To: <techassist@xxxxxxxxxxxxx>
- Date: Mon, 23 Feb 2004 21:05:15 -0500
Kevin,
The relay is removed from this chassis and the same problem is
occurring. The relay I removed is the thermistor relay. I've checked all
the diodes and transistors in and around the relay as suggested by
another member, I can't find anything obvious. This is a newer model TV
with surface mount components everywhere, even the jungle, micro and
tuner control IC's are surface mount. It's kind of hard to trace things
on this chassis. What I need, and I know I've already asked, is a
schematic on this chassis. I may have to dig deep and purchase one
because I'm stumped.
Thank-you,
David Lessard.
Alexandria Electronics
50 Harrison Street
Alexandria, Ontario
K0C-1A0
mr_fixit@xxxxxxxxxxxx
-----Original Message-----
From: techassist-bounce@xxxxxxxxxxxxx
[mailto:techassist-bounce@xxxxxxxxxxxxx] On Behalf Of Kevin
Sent: Monday, February 23, 2004 5:09 PM
To: techassist@xxxxxxxxxxxxx
Subject: [TechAssist] Re: Sanyo TV - DS27510 - Won't turn OFF - Followup
I have tested relays when turned off to see if there is a short where
there shouldn't be. When off of course the relay should be open on the
switch side.
Kevin Wilks
Kevin's TV & Video Repair
Penticton BC Canada
kevintv@xxxxxxx
-----Original Message-----
From: techassist-bounce@xxxxxxxxxxxxx
[mailto:techassist-bounce@xxxxxxxxxxxxx] On Behalf Of Bob@Bobs tv
Sent: Monday, February 23, 2004 6:34 AM
To: techassist@xxxxxxxxxxxxx
Subject: [TechAssist] Re: Sanyo TV - DS27510 - Won't turn OFF - Followup
Dave,
I would try removing the relay...Then your 100% sure its not
that...
I did the same thing with the Panasonic, testing relay transistor, pulse
from micro...then I removed/replaced the relay and that took care of the
problem...Panasonic was doing EXACT same thing as your Sanyo...{I
thought it
can't be relay as it clicks on/off}
Bob,
Bobs TV Worcester, ma
woodman1@xxxxxxxx
Main 508-853-1482
Fax 508-853-1480
----- Original Message -----
From: "David Lessard" <mr_fixit@xxxxxxxxxxxx>
To: <techassist@xxxxxxxxxxxxx>
Sent: Saturday, February 21, 2004 12:20 PM
Subject: [TechAssist] Re: Sanyo TV - DS27510 - Won't turn OFF - Followup
> Customer dropped off TV today. When plugged in HV fires up but with no
> picture. Hit the ON button and there is a picture with sound, turn TV
> off and audio goes off but picture remains. Checked the relay and its
> not stuck. This TV has a surface mount micro on the foil side of the
> PCB, what I need is information on the relay circuit from the micro to
> the relay please.
>
> Thanks.
>
> David Lessard.
>
> Alexandria Electronics
> 50 Harrison Street
> Alexandria, Ontario
> K0C-1A0
>
> mr_fixit@xxxxxxxxxxxx
>
>
> -----Original Message-----
> From: techassist-bounce@xxxxxxxxxxxxx
> [mailto:techassist-bounce@xxxxxxxxxxxxx] On Behalf Of Webster TV
> Sent: Tuesday, February 17, 2004 2:05 PM
> To: techassist@xxxxxxxxxxxxx
> Subject: [TechAssist] Re: Sanyo TV - DS27510 - Won't turn OFF
>
> David,
>
> It definitely can be the relay if your unit uses a relay in the power
> circuit. Some sets only use the relay in the degaussing circuit. I've
> run
> into this numerous times on Quasar/Panasonics, you push power to shut
> the
> unit off and the on screen display and audio go off, but the picture
> will
> slightly dim down, but stay on. Replacing the relay solves the
problem.
>
> Dan Webster
> Webster's TV
> Shullsburg, Wi.
> ----- Original Message -----
> From: "David Lessard" <mr_fixit@xxxxxxxxxxxx>
> To: <techassist@xxxxxxxxxxxxx>
> Sent: Monday, February 16, 2004 6:29 PM
> Subject: [TechAssist] Re: Sanyo TV - DS27510 - Won't turn OFF
>
>
> > Furthermore one would think that if the relay was stuck that the TV
> > would never turn off. I'll have to check this problem out first hand
> > when I visit the customer this week. Thanks for the responses, it
give
> > me something to think about.
> >
> > David Lessard
> >
> > Alexandria Electronics
> > 50 Harrison Street
> > Alexandria, Ontario
> > K0C-1A0
> >
> > mr_fixit@xxxxxxxxxxxx
> >
> >
> > -----Original Message-----
> > From: techassist-bounce@xxxxxxxxxxxxx
> > [mailto:techassist-bounce@xxxxxxxxxxxxx] On Behalf Of Intrepid Video
> > Support
> > Sent: Monday, February 16, 2004 4:14 PM
> > To: techassist@xxxxxxxxxxxxx
> > Subject: [TechAssist] Re: Sanyo TV - DS27510 - Won't turn OFF
> >
> > I would not think it is the relay..if it was, the picture would not
> come
> > on.
> >
> > Jeff Dougherty
> > Intrepid Video TV/VCR
> > 263 S Front St
> > Steelton PA 17113
> > fax...717-564-4952
> > www.intrepid-video.com www.tech-repair.net
> >
> > ----- Original Message -----
> > From: "David Lessard" <mr_fixit@xxxxxxxxxxxx>
> > To: <techassist@xxxxxxxxxxxxx>
> > Sent: Monday, February 16, 2004 3:51 PM
> > Subject: [TechAssist] Re: Sanyo TV - DS27510 - Won't turn OFF
> >
> >
> > Bob,
> >
> > Was it a defective relay or the relay circuitry?
> >
> > Thanks for the information.
> >
> > David Lessard
> >
> > Alexandria Electronics
> > 50 Harrison Street
> > Alexandria, Ontario
> > K0C-1A0
> >
> > mr_fixit@xxxxxxxxxxxx
> >
> >
> > -----Original Message-----
> > From: techassist-bounce@xxxxxxxxxxxxx
> > [mailto:techassist-bounce@xxxxxxxxxxxxx] On Behalf Of Bob@Bobs tv
> > Sent: Monday, February 16, 2004 3:35 PM
> > To: techassist@xxxxxxxxxxxxx
> > Subject: [TechAssist] Re: Sanyo TV - DS27510 - Won't turn OFF
> >
> > Dave,
> > Just repaired a 27" Panasonic EXACT same problem, it was the
> > power
> > relay.
> > Bob,
> >
> > Bobs TV Worcester, ma
> >
> > woodman1@xxxxxxxx
> >
> > Main 508-853-1482
> > Fax 508-853-1480
> > ----- Original Message -----
> > From: "David Lessard" <mr_fixit@xxxxxxxxxxxx>
> > To: <techassist@xxxxxxxxxxxxx>
> > Sent: Monday, February 16, 2004 1:46 PM
> > Subject: [TechAssist] Sanyo TV - DS27510 - Won't turn OFF
> >
> >
> > > Customer called and explained the problem as not being able to
turn
> > off
> > > this TV. When the on/off button is pressed the audio and picture
> goes
> > > off but then the picture returns without audio. If the on/off
button
> > is
> > > pressed again the audio comes up. Weird, I would like to arm
myself
> > with
> > > whatever details of this problem before visiting the customer.
> > >
> > > Thanks in advance,
> > >
> > > David Lessard
> > >
> > > Alexandria Electronics
> > > 50 Harrison Street
> > > Alexandria, Ontario
> > > K0C-1A0
> > >
> > > mr_fixit@xxxxxxxxxxxx
> > >
> > >
> > >
> > >
> >
>
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