[TechAssist] Re: Sony PTV model KP41T15
- From: tibstv <tiberiom@xxxxxxxxx>
- To: techassist@xxxxxxxxxxxxx
- Date: Thu, 14 Apr 2005 08:16:01 -0400
hi ernie
if this is the set that has a separate convergance board mounted on side
when you put screws in to hold board on frame it could cause a cracked
etching happened to me
good luck ernie
this time tommorrow i will be in your neck of the woods Vancouver
tib
On 4/13/05, Damon <damon101@xxxxxxxxxxxxxx> wrote:
> I think I've seen the same thing....the +- 15V supplies generally indicat=
e
> the output IC is actually an operational amplifier and those rarely fail
> from my experience. Since the Jungle IC generates the vertical sawtooth,
> I'll bet that signal is missing.
> I can't recall if the board layout is.....the jungle is on one board and =
the
> vertical output is on another, like on the convergence amp board, but if =
it
> is.....there is a plug labeled V drive that I connect the scope to for
> verification of drive signal. I've seen the same V drive connection on
> various chassis from Sony.
>=20
> Damon Brunger
> Telrad Electronics
> Fort Wayne IN
> ----- Original Message -----
> From: "Gemini Computer & TV" <geminitv@xxxxxxxxxxx>
> To: <techassist@xxxxxxxxxxxxx>
> Sent: Wednesday, April 13, 2005 1:03 PM
> Subject: [TechAssist] Re: Sony PTV model KP41T15
>=20
> > Jungle IC?????
> >
> > Bob Waterman, CET(r) #RI-28
> > Master Technician License #9109
> > Service Manager / Parts Manager
> > Gemini Computer, TV, & Security Alarms
> > (508)695-7302
> > (508)695-7769 FAX
> > geminitv@xxxxxxxxxxx
> >
> >
> >
> > ----- Original Message -----
> > From: "Ernie - Valley TV & Stereo" <valleytv@xxxxxxxxxxxx>
> > To: <techassist@xxxxxxxxxxxxx>
> > Sent: Wednesday, April 13, 2005 1:54 PM
> > Subject: [TechAssist] Sony PTV model KP41T15
> >
> >
> > > This set has 3 curved horiz. lines in center of screen (no
> > vert.deflection)
> > > until the set shuts down after 10 to 15 seconds
> > > I replaced the convergence IC's a year and a half ago
> > > The 15v + and 15v- voltages are OK and the 2 fuses are not blown
> > > on the convergence board. I don't have the vert.OP IC in stock and
> > > was wondering if this can be caused by the convergence IC's.
> > > This is not a straight line, but separate blue, green & red lines
> > > and they are curved
> > > Has anybody seen this problem?
> > > TIA
> > > Ernie
> > >
> > > Ernie Niessen
> > > Valley TV & Stereo
> > > 9401 Fletcher St.
> > > Chilliwack, B.C.
> > > V2P 4Z4
> > > Canada
> > > Since 1960
> > > valleytv@xxxxxxxxxxxx
> >
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>=20
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>=20
--=20
TibsTV
Tiberio Moreira
412 Lancaster St.
Leominster Ma. 01453
Master Liscence # 9176
978.537.5973
(Fax) 978.840.3516
tiberiom@xxxxxxxxx
tibstv@xxxxxxxxxxx
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