[TechAssist] Re: Sony KP46v15
- From: "Gemini Computer & TV" <geminitv@xxxxxxxxxxx>
- To: <techassist@xxxxxxxxxxxxx>
- Date: Fri, 26 Mar 2004 10:33:08 -0500
Correct and some can be seen glowing or arcing down the neck. I have had
three in the past couple of weeks.
Bob Waterman, CET® #RI-28
Master Technician License #9109
Service Manager / Parts Manager
Gemini Computer, TV, & Security Alarms
(508)695-7302
(508)695-7769 FAX
geminitv@xxxxxxxxxxx
geminitv@xxxxxxx
www.geminicomputertvsecurityalarms.com
----- Original Message -----
From: "peggs" <peggs@xxxxxxxxxxxxx>
To: <techassist@xxxxxxxxxxxxx>; <techassist@xxxxxxxxxxxxx>;
<techassist@xxxxxxxxxxxxx>
Sent: Friday, March 26, 2004 12:10 PM
Subject: [TechAssist] Re: Sony KP46v15
> I ask that because I had removed the CRT PCB on the Red CRT
> to see if it would fire up.I did that before I disconnected the FLyback's
> input to the HV Splitter.
> I guess the Pix Tube's Anode is what you are talking about being 'bad'
>
> Peggs
>
> At 08:55 AM 3/26/04, peggs wrote:
> >bob,
> >how would I verify a shorted Pix tube
> >
> >Peggs
> >
> >At 04:23 AM 3/26/04, Gemini Computer & TV wrote:
> > >Sounds like you have have a bad CRT but see the following:
> > >
> > >SYMPTOMS: Cust. complaint of intermittent picture. When first turned on
> > >timer led flashed, but no picture appeared. Troubleshooting revealed
no=
> > high
> > >voltage being produced.
> > >
> > >RESOLUTION: Verified Hor. Drive to N bd. voltage check Q811 collector=
> > showed
> > >no 115v through flyback, Tracing back on PC board revealed crack on PC=
> > board
> > >beneath L805 & C803 interrupting 115v supply to flyback. Jumper wire
across
> > >crack restored high voltage & picture.
> > >
> > >-----------------------------
> > >
> > >SYMPTOMS: Relay clicks twice. Replaced shorted H. Out.
> > >
> > >CAUSE: Found a little star hole under the yoke and was causing to shut
down
> > >
> > >RESOLUTION: Found problem on N Board, IC-l802 arcing.
> > >
> > >
> > >
> > >
> > >
> > >
> > >
> > >Bob Waterman, CET=AE #RI-28
> > >Master Technician License #9109
> > >Service Manager / Parts Manager
> > >Gemini Computer, TV, & Security Alarms
> > >(508)695-7302
> > >(508)695-7769 FAX
> > >geminitv@xxxxxxxxxxx
> > >geminitv@xxxxxxx
> > >www.geminicomputertvsecurityalarms.com
> > >
> > >
> > >
> > >
> > >
> > >
> > >
> > >----- Original Message -----
> > >From: "peggs" <peggs@xxxxxxxxxxxxx>
> > >To: <techassist@xxxxxxxxxxxxx>
> > >Sent: Thursday, March 25, 2004 6:35 PM
> > >Subject: [TechAssist] Sony KP46v15
> > >
> > >
> > > > Set came in with a complaint of No Power and 'flash' behind the
right
> > >speaker
> > > > at Power on.
> > > > I get immediate shutdown at plug-in.I think the Flash is a relay
closing
> > > > but not sure.
> > > > Anyway,I disconnected the flyback input to the HV Splitter and the
set
> > >fired up
> > > > at plug-in.
> > > > I put the flyback anode back in to test the Picture tubes one at a
> > >time,but
> > > > before
> > > > I disconnected any of the Tube anodes from the HV splitter,I plugged
it
> > >back
> > > > up.Set came on momentarily then died.Now I don't even get
shutdown,it's
> > >dead.
> > > > Found on the 'N' board Q811 2sd1887 shorted,andQ801 2sd2555 shorted.
> > > > also on the 'G' board found Q603 and Q614,both 2sc4582, shorted and
> > > > R604 .1 ohm open.
> > > > Tritronics has HV Tripler as 1-453-108-11,replaced by -12, $140.94=
> > retail.
> > > >
> > > > Has anyone been down this road,or have some tips on this set.
> > > > It belongs to a good friend
> > > >
> > > > Peggs
> > > > Peggs' Electronics
> > > > 1519 West 2nd Street
> > > > Owensboro,KY 42301
> > > > 270-926-4968
> > > > fax 270-686-7399
> > > > peggs@xxxxxxxxxxxxx
> > > >
> > > >
> > > >=
>
--------------------------------------------------------------------------
> > >---
> > > > Lost Password:
> > > > http://www.tech-assist.org and select "Login Problems?".
> > > > Email Archives:
> > > > //www.freelists.org/archives/techassist/
> > > >
> > >
> > >
> > >
> >
>---------------------------------------------------------------------------
=
> >--
> > >Lost Password:
> > >http://www.tech-assist.org and select "Login Problems?".
> > >Email Archives:
> > >//www.freelists.org/archives/techassist/
> >
> >
>
>---------------------------------------------------------------------------
--
> >Lost Password:
> >http://www.tech-assist.org and select "Login Problems?".
> >Email Archives:
> >//www.freelists.org/archives/techassist/
>
>
> --------------------------------------------------------------------------
---
> Lost Password:
> http://www.tech-assist.org and select "Login Problems?".
> Email Archives:
> //www.freelists.org/archives/techassist/
>
-----------------------------------------------------------------------------
Lost Password:
http://www.tech-assist.org and select "Login Problems?".
Email Archives:
//www.freelists.org/archives/techassist/
Other related posts:
