[TechAssist] Re: Zenith PV4661 Projection TV
- From: "Lyles Tv" <tech@xxxxxxxxxxx>
- To: <techassist@xxxxxxxxxxxxx>
- Date: Fri, 3 Jan 2003 09:04:21 -0600
Remove, and resolder the stand up daughter board that sits behind and to the
left of the flyback (if this set has one) You have to remove it to get at
bad connections where the 2 boards meet. Had one bust my nuts not to long
ago--intermittant dark/to no video.
Jeff Farnsworth
Lyles TV and Appliance
17 S Washington St
Elkhorn, Wi. 53121
ph 262-723-3477
fax 262-723-3658
tech@xxxxxxxxxxx
----- Original Message -----
From: "Gemini Computer & TV" <geminitv@xxxxxxxxxxxxxxxx>
To: <techassist@xxxxxxxxxxxxx>
Sent: Thursday, January 02, 2003 6:13 PM
Subject: [TechAssist] Re: Zenith PV4661 Projection TV
>
> Perhaps this applies (from WINSTIPS):
>
> ---------------------------------------------------------------
> Text pasted from WinSTIPS 2.0
> http://www.ServiceSoftware.com
> ---------------------------------------------------------------
>
> ZENITH 9-1302
>
> Video And Osd Lost After Warmup. Audio Ok
>
> Jeff Stielau : 11/26/02 : Shoreline Electronics
>
> Cracked Solder Connections Smps/Sweep Module. Tx3402 Pin Had Burnt/Heat
> Stressed Connection. Scrape Away Copper Trace Next To Eyelet & Resoldered
> Really Well For Good Connection. Cracked Solder Connection On Qx3201 &
> Vertical Yoke Pins. Go Over Chassis Really Well
>
> ---------------------------------------------------------------
> ---------------------------------------------------------------
> Text pasted from WinSTIPS 2.0
> http://www.ServiceSoftware.com
> ---------------------------------------------------------------
>
> ZENITH 9-1302-6
>
> Picture Pulls In On The Sides To A Hour Glass Shape
>
> Doug - Vision Video Labs, Inc.
>
> Resolder 20 Plus Bad Connections On Board. Many Broke Loose.
>
> ---------------------------------------------------------------
>
> Bob Waterman, CET® #RI-28
> Master Technician License #9109
> Service Manager
> Gemini Computer, TV, & Security Alarms
> (508)695-7302
> (508)695-7769 FAX
> geminitv@xxxxxxxxxxxxxxxx
> geminitv@xxxxxxx
>
>
> ----- Original Message -----
> From: "David Lessard" <mrfixit@xxxxxxxxxxx>
> To: <techassist@xxxxxxxxxxxxx>
> Sent: Thursday, January 02, 2003 7:03 PM
> Subject: [TechAssist] Re: Zenith PV4661 Projection TV
>
>
> >
> > Ed, Yeah I thought about the filament voltage at first but it doesnt
make
> > sense that the menu is still present after the picture goes out. So its
> only
> > the video that dissappears, what caps are most likely to cause this
> problem?
> > Are they surface mount? I have no information on this chassis, can you
> help
> > out? Diagrams, schematics, tips, anything...Thanks a bunch Ed.
> >
> > David Lessard
> > Alexandria Electronics
> > mrfixit@xxxxxxxxxxx
> >
> > -----Original Message-----
> > From: techassist-bounce@xxxxxxxxxxxxx
> > [mailto:techassist-bounce@xxxxxxxxxxxxx]On Behalf Of Tel-Tek Electronics
> > Sent: Thursday, January 02, 2003 4:54 PM
> > To: techassist@xxxxxxxxxxxxx
> > Subject: [TechAssist] Re: Zenith PV4661 Projection TV
> >
> >
> >
> > David;
> > This is the C8S chassis. Without seeing it, hard to say, but sounds like
> > probably a bad connection on the board for the Filament voltage. Unless
> it's
> > only the Video that dissapears, then you got some bad Caps to contend
with
> > in the Video circuit.
> >
> > -Ed-
> > ----- Original Message -----
> > From: "David Lessard" <mrfixit@xxxxxxxxxxx>
> > To: <techassist@xxxxxxxxxxxxx>
> > Sent: Thursday, January 02, 2003 4:08 PM
> > Subject: [TechAssist] Zenith PV4661 Projection TV
> >
> >
> > >
> > > Hi techs,
> > >
> > > Has anyone ever heard of this model before? Google search turns up
> > nothing.
> > > Customer describes the problem being a slow picture start (2-5
minutes -
> > > gradually) however OSG menu is visible before picture starts to come
in,
> > > then after 30 minutes picture goes black again, shut down and cool off
> > > period required before trying again. Not sure if OSG menu is still
> visable
> > > at this point, forgot to ask, I will follow up on this. Any help would
> be
> > > appreciate.
> > >
> > > Thanks.
> > >
> > > "Share what you know, Learn what you don't"
> > >
> > > David Lessard
> > > Alexandria Electronics
> > > 50 Harrison Street
> > > Alexandria, Ontario
> > > K0C-1A0
> > > mrfixit@xxxxxxxxxxx
> > >
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