[TechAssist] Re: Philips Magnavox 19PR15, 19A800 chassis, video washed out...

  • From: "al m" <ampm@xxxxxxx>
  • To: <techassist@xxxxxxxxxxxxx>
  • Date: Sun, 2 Feb 2003 20:16:07 -0500

Haven't run into one yet but now I'll keep it in mind.
al marquardt
ampm@xxxxxxx


----- Original Message -----
From: "Phillip R. Hull" <phil245@xxxxxxxxxxxxx>
To: <techassist@xxxxxxxxxxxxx>
Sent: Sunday, February 02, 2003 5:58 PM
Subject: [TechAssist] Re: Philips Magnavox 19PR15, 19A800 chassis, video
washed out...


>
> It happens,  haven't  you had a set with a burry blob on the screen and it
> turned out to be a vertical IC.  In the newer sets the video can be
blanked
> if only a voltage to the IC is a little low or hi.  Especially on Samsung
> and Philips chassis.
>
> Phillip R. Hull    STET
> phil245@xxxxxxxxxxxxx
> ----- Original Message -----
> From: "al m" <ampm@xxxxxxx>
> To: <techassist@xxxxxxxxxxxxx>
> Sent: Sunday, February 02, 2003 11:00 AM
> Subject: [TechAssist] Re: Philips Magnavox 19PR15, 19A800 chassis, video
> washed out...
>
>
> >
> > This caught my eye. How does it have full vertical deflection if the
> > vertical IC is bad? This is interesting.
> > al marquardt
> > ampm@xxxxxxx
> >
> >
> > ----- Original Message -----
> > From: "Jeff Dougherty" <support@xxxxxxxxxxxxxxxxxx>
> > To: <techassist@xxxxxxxxxxxxx>
> > Sent: Friday, January 31, 2003 10:38 PM
> > Subject: [TechAssist] Re: Philips Magnavox 19PR15, 19A800 chassis, video
> > washed out...
> >
> >
> > >
> > > Yes you would, Phil.
> > > If your set uses that IC number...change those parts Mando mentioned.'
> > > This one had me fooled the first time.
> > >
> > > FAX 717-564-4952
> > > Jeff Dougherty
> > > Intrepid Video & Electronics      Be careful of your thoughts.
> > > 501 Luther Rd                        They may become your words
> > > Harrisburg, PA 17111                            any moment.
> > > VCR tips, electronics info & general interest.
> > > www.intrepid-video.com www.tech-repair.net
> > > www.thetoolcaddy.com www.9-11-2001tragedy.com
> > >
***********************************************************************
> > >
> > > ----- Original Message -----
> > > From: "Philip Bader" <tjanphyl@xxxxxxxxxxxxxxx>
> > > To: <techassist@xxxxxxxxxxxxx>
> > > Sent: Friday, January 31, 2003 2:05 PM
> > > Subject: [TechAssist] Re: Philips Magnavox 19PR15, 19A800 chassis,
video
> > washed
> > > out...
> > >
> > >
> > >
> > > If those parts were in fact shorted/open, I don't really think I would
> > > be getting full vert deflection, would I?
> > > Phil Bader
> > >
> > > armando guerra wrote:
> > > >
> > > > You probably have a shorted vertical IC TDA-9302H and diode D409
> > > > .Also,check R445 and R420.They are probably open.
> > > > Mando
> > > > Birdie's TV & Electronics
> > > > Casa  Grande, AZ
> > > >
> > > > Philip Bader wrote:
> > > >
> > > > > Still fighting this one.Became a "shop set". Display was totally
> > > > > black,with HV.and sound.
> > > > > Turned up G2 on fly to illuminate screen and it did,with the usual
> > > > > expected white screen and retrace lines from overdrive. But I
still
> at
> > > > > least see a very faded video signal. I checked the entire CRT
board
> > > > > components,all seem OK, no open resistors or shorted
transistors.The
> > > > > three 2 watt 18K resistors on CRT board feeding the outputs,
> > > > > (#3314,3324,3334) all have about +194.00V on source sides and
about
> > > > > +193.00V on other sides.The screen control works. I have a full
> > > > > screen,sound,tuner operation. too faint to see if there is OSD.
> > > > > At this point I simply want to solve this.It's getting personal
;-)
> > > > > Wondering if that jungle chip(TDA8373C) is the cause.
> > > > > Phil Bader
> > > > > --
> > > > > Philip Bader
> > > > > Jan Phyl TV Inc. (estab. 1976)
> > > > > 3420 Recker Hwy. Winter Haven, Fl. 33880
> > > > > Fax (863) 299-8821
> > > > > email: tjanphyl@xxxxxxxxxxxxxxx
> > > > >
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> > > --
> > > Philip Bader
> > > Jan Phyl TV Inc. (estab. 1976)
> > > 3420 Recker Hwy. Winter Haven, Fl. 33880
> > > Fax (863) 299-8821
> > > email: tjanphyl@xxxxxxxxxxxxxxx
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