[TechAssist] Re: PTK 169PTC P60153EB reg. B+ too high shutsdown
- From: "Larry E." <videotech@xxxxxxxxxxxx>
- To: techassist@xxxxxxxxxxxxx
- Date: Sat, 31 Jan 2004 15:54:03 -0500
Terry, changed C4108 and zener don`t have the smd cap, still no change, I`m
beginning
to think the fly is breaking down, as I said the set will run at lower setting
of
variac, but
then all my voltages are of course bogus, I`ll keep checking, cust. wants for
tomorrows
game of course, Thanks for the reply, Larry E
Larry Eastman
American TV & Electronics
"Terry H." wrote:
> Larry, as per RCA, when I first started repairing these for high B+ was to
> replace the 3volt zener and the 1000pf smd cap in the base drive for Q4401.
> I know you're as thorough as anyone on 169's so possibly that could take
> care of it as well as C4108
> Terry H.
> The TV Shop
> Gonzales, Tx
>
> ----- Original Message -----
> From: "Larry E." <videotech@xxxxxxxxxxxx>
> To: <techassist@xxxxxxxxxxxxx>
> Sent: Saturday, January 31, 2004 1:27 PM
> Subject: [TechAssist] Re: PTK 169PTC P60153EB reg. B+ too high shutsdown
>
> > Wayne, already posted that C4102 was replaced, 104, 108 have been checked,
> Larry
> > E
> >
> > Larry Eastman
> > American TV & Electronics
> > Crystal River, Fl. 34428
> >
> > Wayne Vanaman wrote:
> >
> > > In the power supply primary, there are three caps to change, a 2.2, a
> 15,
> > > and either a 39 or 47.
> > >
> > > Wayne Vanaman
> > > Omega Electronics
> > > 6904 W Fairfield Dr
> > > Pensacola, Fl. 32506-3310
> > >
> > > Wayne@xxxxxxxxxxxxxxxxxxxxx
> > > WWW.PensacolaTVRepair.Com
> > >
> > > 850-456-5995 voice
> > > 850-458-6369 fax
> > >
> > > ----- Original Message -----
> > > From: "Larry E." <videotech@xxxxxxxxxxxx>
> > > To: "tech-assist" <techassist@xxxxxxxxxxxxx>
> > > Sent: Saturday, January 31, 2004 12:17 PM
> > > Subject: [TechAssist] PTK 169PTC P60153EB reg. B+ too high shutsdown
> > >
> > > > Hi Guys, I could definitely use some help on this PTK169, All standby
> > > > voltages are correct,
> > > > set starts to come up then immediately shutsdown, originally I
> replaced
> > > > Cr4118 and C4102,
> > > > set ran perfectly in shop, brought to customers house, and set
> wouldn`t
> > > > start, set will start at
> > > > approx. 80 volts on variac but I have to back it down immed. to 69
> volts
> > > > to keep it running,
> > > > at this setting the run regulated voltage is already at 135 volts, of
> > > > course if I try to increase the
> > > > variac it shuts down. I have checked Y4301, CR4123, CR4401, CR4402,
> > > > C4104, C4108
> > > > C4401, C4402, C4406, I removed the anode lead from the splitter, still
> > > > shutsdown immediately
> > > > I`m lost at this point any ideas? tia, Larry E
> > > > Larry Eastman
> > > > American TV & Electronics
> > > > Crystal River, Fl. 34428
> > > >
> > > >
> > >
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