[TechAssist] Re: PTV Unusaul Coolant Leak - Fixed
- From: walter wood <wwood_38478@xxxxxxxxx>
- To: techassist@xxxxxxxxxxxxx
- Date: Wed, 16 Jun 2004 21:39:25 -0700 (PDT)
I have had one of the direct view Toshiba's with
the "too much green".
Our General manager bought it, and mentioned that
fact.
I said that we would go to his house and fix it
anytime.
That rocked on for a long time.
One day, I mentioned it to him and he said, I like
it the way it is.
Go figure!!!!
Walter
--- Bil Green <tv.vcrrepair@xxxxxxxxxxx> wrote:
> Hi Greg,
>
> Yes, I no longer sell TVs, but have serviced many
> thousands over
> the last 30 years.
>
> I do appreciate your input and have found
> Toshibas to be easier to
> work on than some. But I really have seen tons of
> them with bad
> grey scale (and I am not color blind, someone at
> the factory is).
> A little too green is a big deal from my point of
> view (and yes,
> I do appreciate the extra business).
>
> I can't imagine that I am about the only one in
> this country that
> has noticed this! My customers sure appreciate it
> when I set the
> grey scale to normal.
>
> We have a store that sells about one Toshiba
> every day or so.
> Usually when I work on a Toshiba PTV, the
> convergence output
> chips are at fault. So, the rest of the sets seem
> to hold up.
> But I did have one with all the lens wing nuts
> completely loose
> - new set, right out of the box (terrible focus).
>
> The one I worked on today never had any glue on
> the CRT convergence
> tabs (factory mistake). Just barely touched them
> and they moved.
> So on this one also, the loose wing nuts were
> probably Toshibas
> mistake.
>
> One thing I notice over the years. One shop may
> see few problems
> with a particular brand, and a shop in a
> different area (maybe
> partly do to the climate) will see lots of
> problems with that same
> brand.
>
> I may have over reacted when I said that Toshibas
> suck, but I
> couldn't believe how many important things were
> loose on this
> one set! (and not the first time). I expect more
> from a good
> quality Japanese product. But then they are
> assembled by good ol'
> Americans now (last I heard).
>
> --
> Best regards,
>
> Bil Green
> PC 1000
> Mammoth Lakes, CA 93546
> 760-924-1000
> mailto:tv.vcrrepair@xxxxxxxxxxx
>
> Wednesday, June 16, 2004, 7:43:06 PM, you wrote:
>
> GS> Bill,
> GS> I guess your probably a service center
> only & don't sell TV's, because
> GS> if you did you would not be bitchin about
> something that is your source of
> GS> income. I sell TV's & can honestly say that
> Toshiba is by far the least
> GS> troublesome TV that we sell & service. I
> have only repaired 3 Toshiba's
> GS> under warranty since I've been selling them
> for many years. I can't say
> GS> that about the RCA's, Zenith's, & Hitachi's
> (even though Hitachi's are
> GS> excellent sets). You must have a Toshiba
> dealer in your area that sells a
> GS> ton of them because they have one of the best
> failure rates of any brand &
> GS> are one of the easiest to repair. The 65HX81
> is a 3-4 yr old set that has
> GS> had a very good track record. I suspect
> someone worked on this set before
> GS> you got it. I sell hundreds of Toshiba's &
> have seen less than 1% of the
> GS> sets grey scale off out of the box. The only
> gripe I have is their
> GS> packaging is not as good as most. I can also
> say that if you took a poll of
> GS> the tech's on this forum that they will agree
> that they see fewer problems
> GS> with Toshiba's than any other brand. Guess
> you haven't seen many Samsung,
> GS> Akai, Panasonic, Mitsubishi, Zenith's & the 2
> worst NAP & RCA's projo's,
> GS> which are job security for your repair shop.
> Be pleased when you have work.
> GS> Toshiba TV's are like the old Chrysler
> transmissions for the transmission
> GS> shop, the shop would go under if it wasn't
> for Chevy & Ford's. Greg
> GS> ----- Original Message -----
> GS> From: "Bil Green" <tv.vcrrepair@xxxxxxxxxxx>
> GS> To: ".TECHASSIST @ freelists . org"
> <techassist@xxxxxxxxxxxxx>
> GS> Sent: Wednesday, June 16, 2004 5:44 PM
> GS> 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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=====
Walter Wood
Future Tech Home Center
2786 Hwy. 43 N.
Lawrenceburg Tn. 38464
931-829-3337
Fax 931-829-4044
mailto:wwood_38478@xxxxxxxxx
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