[TechAssist] Re: PTV Unusaul Coolant Leak - Fixed

  • From: "Ron Miller d.b.a. Country TV" <rlmbkm@xxxxxxxxxx>
  • To: <techassist@xxxxxxxxxxxxx>
  • Date: Wed, 16 Jun 2004 21:49:40 -0500

Right On Greg!
Country TV
Ron Miller
Inez, TX. 77968

----- Original Message ----- 
From: "Greg Smith" <gaserv@xxxxxxxxxxxxxxxx>
To: <techassist@xxxxxxxxxxxxx>
Sent: Wednesday, June 16, 2004 9:43 PM
Subject: [TechAssist] Re: PTV Unusaul Coolant Leak - Fixed


> Bill,
>      I guess your probably a service center only & don't sell TV's,
because
> if you did you would not be bitchin about something that is your source of
> income.  I sell TV's & can honestly say that Toshiba is by far the least
> troublesome TV that we sell & service.  I have only repaired 3 Toshiba's
> under warranty since I've been selling them for many years.  I can't say
> that about the RCA's, Zenith's, & Hitachi's (even though Hitachi's are
> excellent sets).  You must have a Toshiba dealer in your area that sells a
> ton of them because they have one of the best failure rates of any brand &
> are one of the easiest to repair.  The 65HX81 is a 3-4 yr old  set that
has
> had a very good track record.  I suspect someone worked on this set before
> you got it.  I sell hundreds of Toshiba's & have seen less than 1% of the
> sets grey scale off out of the box.  The only gripe I have is their
> packaging is not as good as most.  I can also say that if you took a poll
of
> the tech's on this forum that they will agree that they see fewer problems
> with Toshiba's than any other brand.  Guess you haven't seen many Samsung,
> Akai, Panasonic, Mitsubishi, Zenith's & the 2 worst NAP & RCA's projo's,
> which are job security for your repair shop.  Be pleased when you have
work.
> Toshiba TV's are like the old Chrysler transmissions for the transmission
> shop, the shop would go under if it wasn't for Chevy & Ford's.  Greg
> ----- Original Message ----- 
> From: "Bil Green" <tv.vcrrepair@xxxxxxxxxxx>
> To: ".TECHASSIST @ freelists . org" <techassist@xxxxxxxxxxxxx>
> Sent: Wednesday, June 16, 2004 5:44 PM
> Subject: [TechAssist] PTV Unusaul Coolant Leak - Fixed
>
>
> > Toshiba PTV
> > Model 65HX81
> > Symptom: no power
> >
> > Just finished repairing this set. It was so hard to figure where the
> > leak was that I thought this may help someone else (other interesting
> > defects found)
> >
> > 1. Troubleshot
> > 2. Located and replaced open 2A circuit protector in power supply -
> >    at this time a portion of the green CRT (picture tube) circuit
> >    board immediately started burning up
> > 3. Examined area around green CRT and found a few drops of liquid
> >    leaking from the CRT onto the circuit board (cause of burning).
> > 4. Removed the green CRT/assembly - checked carefully for leaks (no
> >    longer leaking! - so obvious sign as to where it leaked from)
> > 5. After hours of waiting for it to leak, and more tests, a loose
> >    filler plug was found (buried under silicone sealant). We added
> >    more coolant, tightened it (was not leaking at this time), and
> >    sealed it with silicone sealant.
> > 6. Repaired burnt wiring on green CRT board
> > 7. Reinstalled green CRT/assembly
> > 8. Adjusted convergence controls
> > 9. Tightened loose lens wing nuts (not done properly at factory)
> > 10. Cemented totally loose convergence adjustment tabs (another
> >     big mistake at factory)
> >
> > DOES TOSHIBA SUCK OR WHAT? - This is not the first time I am seen
> > loose lens wing nuts, not to mention almost every direct view Toshiba
> > I see having very green grey scale. But then it is good for business.
> >
> > -- 
> > Best regards,
> >
> >  Bil Green
> >  PC 1000
> >  Mammoth Lakes, CA 93546
> >  760-924-1000                          mailto:tv.vcrrepair@xxxxxxxxxxx
> >
> >
>
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