[TechAssist] Re: RCA PTV P46151WK, Odd Problem, FIXED

  • From: Gary McCartney <number63@xxxxxxxxxxxxx>
  • To: techassist@xxxxxxxxxxxxx
  • Date: Mon, 31 Dec 2001 11:08:20 -0500

I use WD-40 to clean up all kinds of sticky glue left behind from
stickers, etc. Maybe it would work for these rubber pads too.



Gary McCartney

McCartney Electronics
7134 Fife Rd, RR 7
Guelph Ontario Canada N1H 6J4
Fax: (519)821-1530
email: number63@xxxxxxxxxxxxx






gulftech@xxxxxxxx wrote:
> 
> Dennis,
> 
> MEK.  The I tried soap and water--no good.  Ditto for alcohol.  Oh, yes,
> I used the MEK in a well-ventilated environment!
> 
> I should have stated that this is a PTK169.
> 
> Ken Smith
> Gulf Technical Services
> 3034 Gulf Breeze Parkway
> Gulf Breeze, FL  32561
> 850-934-8324 (Voice) 850-932-0819 (Fax)
> 
> -----------------
> 
> On Sun, 30 Dec 2001 17:35:28 -0800 Dennis Viereck <wa6ati@xxxxxxxxxxxxxx>
> writes:
> >
> > What did you use to clean the messy compound from the bumpers?
> > Dennis
> >
> > gulftech@xxxxxxxx wrote:
> >
> > > Friends,
> > >
> > > I haven't posted this as a problem before, because I couldn't
> > identify
> > > the problem well enough to ask for help.  After many, many hours
> > of work
> > > and two failed attempts to return the light box to the customer,
> > the set
> > > is finally fixed and I hope this will help others in the future.
> > >
> > > The set came in with the complaint of instant shutdown.  The green
> > CRT
> > > was arcing at the second anode.  There appeared to be a contaminant
> > > spilled in the area.  Cleaning and RTV appeared to repair the set.
> > >
> > > Took lightbox back to customer.  Found light horizontal lines,
> > almost
> > > like retrace on all three CRT's.  Had not seen in shop.  Also,
> > appeared
> > > to have a slight sync problem.  For example, bring up convergence
> > > crosshatch, vertical lines had slight "s" shape in middle.
> > >
> > > After many hours of troubleshooting and failed attempts, tried PIP
> > pix.
> > > PIP image was totally out of sync, like is typical of Mitsubishi.
> > Pulled
> > > the PIP module.  It had three rubber bumpers to isolate the pcb
> > from the
> > > shield.  These bumpers had melted like Hershey's Kisses.  What a
> > mess!
> > > Also found seven bad caps.  For the record:  C424, C425, C426,
> > C501 (all
> > > 15ufd, 50V), C318/.47@50, C518/10@50, and C121/25@100.  Most of
> > these
> > > caps check good with a normal cap meter, but high ESR.
> > >
> > > Set works fine now.
> > >
> > > Ken Smith
> > > Gulf Technical Services
> > > 3034 Gulf Breeze Parkway
> > > Gulf Breeze, FL  32561
> > > 850-934-8324 (Voice) 850-932-0819 (Fax)
> > >
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> ________________________________________________________________
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> Juno offers FREE or PREMIUM Internet access for less!
> Join Juno today!  For your FREE software, visit:
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