[TechAssist] Re: Zenith PV4661 Projection TV
- From: "Gemini Computer & TV" <geminitv@xxxxxxxxxxxxxxxx>
- To: <techassist@xxxxxxxxxxxxx>
- Date: Thu, 2 Jan 2003 19:13:06 -0500
Perhaps this applies (from WINSTIPS):
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Text pasted from WinSTIPS 2.0
http://www.ServiceSoftware.com
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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
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Text pasted from WinSTIPS 2.0
http://www.ServiceSoftware.com
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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.
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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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