[TechAssist] Re: RCA PJR500SR
- From: tvdoctors@xxxxxxxxxxxxx
- To: techassist@xxxxxxxxxxxxx
- Date: 12 Dec 2001 08:02:06 -0800
What about that diode, D708, does it serve any purpose! I am beginning to
regret fixing this chassis. I am already hating it.
> ** Original Subject: [TechAssist] Re: RCA PJR500SR
> ** Original Sender: "Clancy Harms" <dickstv1@xxxxxxxxxxxxx>
> ** Original Date: Wed, 12 Dec 2001 10:50:24 -0500 (EST)
> ** Original Message follows...
>
> I think that's the regulator. I have had the screws
> come loose and actually develope a carbon/resistive
> connection it. Also there are some electrolytics between the
> flyback and that transistor that are notoriously bad. I believe
> they are 1000uf@35v & 2200uf@63v (change all of them in that area)
>
> I HATE THAT CHASSIS
>
> Clancy Harms NESDA's Region 7 Director
> Dick's Radio & TV, Inc.
> 2319 West Clay St.
> St. Charles, MO. 63301
> (636)-724-5055
> (636)-724-5531 fax
> email: dickstv1@xxxxxxxxxxxxx
> ----- Original Message -----From: <tvdoctors@xxxxxxxxxxxxx>
> To: <techassist@xxxxxxxxxxxxx>
> Sent: Wednesday, December 12, 2001 9:44 AM
> Subject: [TechAssist] Re: RCA PJR500SR
>
>
> > It is actually shutting down, audio and all. I checked for arrant
> voltages for the rf connector and the tuner and regular ground but found
> that the ground is common and no isolation from the rf connector and the
> tuner. I don't think this thing got hit by lightning, we don't get very much
> lightning in this area (We aren't that lucky) like Bill suggested. Later
> today I will disconnect b+ from the Horiz. out. transistor and see if unit
> still goes down. There is another To3 power transistor on the side of the
> HorizOut heatsync, not really sure what circuit this is in, but it's in the
> same circuit that I noticed a diode is missing from (Looks as if it was
> unsoldered and taken out) thats D708 that I mentioned earlier, Neil
> >
> >
> > > ** Original Subject: [TechAssist] Re: RCA PJR500SR
> > > ** Original Sender: "Clancy Harms" <dickstv1@xxxxxxxxxxxxx>
> > > ** Original Date: Wed, 12 Dec 2001 09:12:33 -0500 (EST)
> >
> > > ** Original Message follows...
> >
> > >
> > > Is this unit really shutting down?
> > > Or is it blanking the raster? Do you have audio?
> > > Just curious. Because this set was known for a problem
> > > that blanks out the video/raster
> > >
> > > Clancy Harms NESDA's Region 7 Director
> > > Dick's Radio & TV, Inc.
> > > 2319 West Clay St. If it's broken...a real man can
> > > St. Charles, MO. 63301 can break it even better !
> > > (636)-724-5055
> > > (636)-724-5531 fax
> > > email: dickstv1@xxxxxxxxxxxxx
> > > mailto:dickstv1@xxxxxxxxxxxxx
> > > ----- Original Message -----From: <tvdoctors@xxxxxxxxxxxxx>
> > > To: <Techassist@xxxxxxxxxxxxx>
> > > Sent: Tuesday, December 11, 2001 12:51 PM
> > > Subject: [TechAssist] RCA PJR500SR
> > >
> > >
> > > > Still having problems with this set. Shuts down within 2 to 3 minutes
> > > after turn on. If I hook an antenna to it after turn on I dont have to
> wait
> > > 2 to 3 minutes for the unit to shut down, it shuts down immediately.
> Checked
> > > Voltage reg. (IC901) and it was on 110 volts until set shuts down, then
> > > jumps to around 135. I changed the reg. and it still does it. I noticed
> on
> > > the deflection board that diode D708 was missing (looks like someone
> took it
> > > out) I don't know if it's supposed to be there or not. Any help would be
> > > appreciated, Thanks Neil
> > > >
> > > > TV Doctors 108 W. Main St. Monroe,Wa. 98272 360-794-6469
> > > >
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> >
> > >** --------- End Original Message ----------- **
> >
> > >
> >
> > TV Doctors 108 W. Main St. Monroe,Wa. 98272 360-794-6469
> >
> > =================================
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>** --------- End Original Message ----------- **
>
TV Doctors 108 W. Main St. Monroe,Wa. 98272 360-794-6469
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