[TechAssist] Re: RCA PTK195M26A, model P46921, blows fuse, need to know part numbers

  • From: "Wayne Vanaman" <Wayne@xxxxxxxxxxxxxxxxxxxxx>
  • To: <techassist@xxxxxxxxxxxxx>
  • Date: Wed, 8 Oct 2003 17:38:44 -0500

Extra income.

The diodes on the secondary were insufficient.  Supperseded by 234048.

cr19710/cr19713, 234048.

250686 is the late production part number.  This PCB uses discreet
components in place of the STK IC.  If you have one of these replace these
parts.

Q19701 pn 246967
Q19702 pn 147665
Q19703 pn 232218
U19701 pn 231525
Q19704 pn 229220
U19700 pn 231525
Q19710 pn 215495


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: "Kevin" <kevintv@xxxxxxx>
To: <techassist@xxxxxxxxxxxxx>
Sent: Wednesday, October 08, 2003 5:21 PM
Subject: [TechAssist] Re: RCA PTK195M26A, model P46921, blows fuse, need to
know part numbers


> Does anyone know why the convergence P/S boards are failing at such a
> high rate?  Thanks.
>
> Kevin Wilks
> Kevin's TV & Video Repair
> Penticton BC Canada
> kevintv@xxxxxxx
>
>
> -----Original Message-----
> From: techassist-bounce@xxxxxxxxxxxxx
> [mailto:techassist-bounce@xxxxxxxxxxxxx] On Behalf Of
> tvservice@xxxxxxxxxxxxx
> Sent: Wednesday, October 08, 2003 1:42 PM
> To: techassist@xxxxxxxxxxxxx
> Subject: [TechAssist] Re: RCA PTK195M26A, model P46921, blows fuse, need
> to know part numbers
>
> 1.2 ohm 2 watt #250661
> Robert
> tvservice@xxxxxxxxxxxxx
> H & H Electronics Inc
> Dallas, TX
>
> ----- Original Message ----- 
> From: "Kevin" <kevintv@xxxxxxx>
> To: <techassist@xxxxxxxxxxxxx>
> Sent: Wednesday, October 08, 2003 1:48 PM
> Subject: [TechAssist] Re: RCA PTK195M26A, model P46921, blows fuse, need
> to
> know part numbers
>
>
> > Robert, what is R19706?  It discolored when I replaced the fuse and
> > plugged in the set.  It measures 1.6 ohms.  Thanks.
> >
> > Kevin Wilks
> > Kevin's TV & Video Repair
> > Penticton BC Canada
> > kevintv@xxxxxxx
> >
> >
> > -----Original Message-----
> > From: techassist-bounce@xxxxxxxxxxxxx
> > [mailto:techassist-bounce@xxxxxxxxxxxxx] On Behalf Of
> > tvservice@xxxxxxxxxxxxx
> > Sent: Wednesday, October 08, 2003 7:03 AM
> > To: techassist@xxxxxxxxxxxxx
> > Subject: [TechAssist] Re: RCA PTK195M26A, model P46921, blows fuse,
> need
> > to know part numbers
> >
> > The power supply blows due to shorted secondary diodes on that board
> > Replacement board #250686 or replace all parts listed below.
> > Q19701      246967 / P4NB50FP
> > Q19702      147665 / NTE159
> > Q19703      232218
> > Q19704      229220 / NTE123AP / 2N3904 / BC547
> > U19701      231525 / NTE999
> > CR19701   198589 / NTE519
> > R19703      241313 / 15 ohm 1/2 w
> > CR19710   234048 / MUR115 / NTE587
> > CR19713   234048 / MUR115 / NTE587
> > F14201      175425 / GMA 5A fast acting
> >
> > Robert
> > tvservice@xxxxxxxxxxxxx
> > H & H Electronics Inc
> > Dallas, TX
> >
> > ----- Original Message ----- 
> > From: "Kevin" <kevintv@xxxxxxx>
> > To: "TECH-ASSIST" <techassist@xxxxxxxxxxxxx>
> > Sent: Wednesday, October 08, 2003 12:30 AM
> > Subject: [TechAssist] RCA PTK195M26A, model P46921, blows fuse, need
> to
> > know
> > part numbers
> >
> >
> > > Main fuse blows as soon as the set is plugged in.  Q19701 of the
> > > convergence P/S is blown up, and R19706 is burnt.  Does anyone know
> > what
> > > each of these parts is?  And is the main fuse a 5 amp slo-blo or
> fast
> > > blow?  What would cause Q19701 to short?  I could find no other
> > shorts.
> > > Thanks.
> > >
> > > Kevin Wilks
> > > Kevin's TV & Video Repair
> > > Penticton BC Canada
> > > kevintv@xxxxxxx
> > >
> > >
> > >
> > >
> >
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