[TechAssist] Re: Sony KP46v15
- From: peggs <peggs@xxxxxxxxxxxxx>
- To: techassist@xxxxxxxxxxxxx, <techassist@xxxxxxxxxxxxx>
- Date: Fri, 26 Mar 2004 10:23:14 -0800
Tritronics doesn't show a part 3 for the blue tube.
Red and Green are there but.......
what does one of these tubes cost ???
Were your sets condemned ???
Also Bob,
did your sets have damage to the N and G boards ???
did I make a mistake by disconnecting the Fly from the HV splitter ???
sorry for babbling :-))
Peggs
At 08:07 AM 3/26/04, Gemini Computer & TV wrote:
>Yes two of them were. That would be my guess that you have a bad blue CRT
>then.
>
>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>; <techassist@xxxxxxxxxxxxx>
>Sent: Friday, March 26, 2004 1:05 PM
>Subject: [TechAssist] Re: Sony KP46v15
>
>
> > from what the customer described,I think it was arcing "behind the right
> > speaker" which would be the Blue tube.
> > All I could get was immediate shut down.
> > Were yours the Blue Tubes ???
> >
> > Peggs
> >
> > At 07:33 AM 3/26/04, Gemini Computer & TV wrote:
> > >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=3DAE #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=3D
> > 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=3D
> > on
> > > > > >timer led flashed, but no picture appeared. Troubleshooting
>revealed
> > >no=3D3D
> > > > > high
> > > > > >voltage being produced.
> > > > > >
> > > > > >RESOLUTION: Verified Hor. Drive to N bd. voltage check Q811=3D
> > collector=3D3D
> > > > > showed
> > > > > >no 115v through flyback, Tracing back on PC board revealed crack
>on=3D
> > PC=3D3D
> > > > > 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=3D
> > shut
> > >down
> > > > > >
> > > > > >RESOLUTION: Found problem on N Board, IC-l802 arcing.
> > > > > >
> > > > > >
> > > > > >
> > > > > >
> > > > > >
> > > > > >
> > > > > >
> > > > > >Bob Waterman, CET=3D3DAE #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=
=3D
> > 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=3D
> > shorted.
> > > > > > > also on the 'G' board found Q603 and Q614,both 2sc4582,=
shorted=3D
> > and
> > > > > > > R604 .1 ohm open.
> > > > > > > Tritronics has HV Tripler as 1-453-108-11,replaced by -12,=3D
> > $140.94=3D3D
> > > > > 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
> > > > > > >
> > > > > > >
> > > > > > >=3D3D
> > > >
> > > =3D
> > =
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