[TechAssist] Re: Zenith SM2727RK - hit by lightning (dead set)
- From: "joey baker" <docwade2@xxxxxxxxxxxxx>
- To: <techassist@xxxxxxxxxxxxx>, "fantaj" <fantaj@xxxxxxx>
- Date: Wed, 17 Oct 2001 20:09:13 -0400
I give this advise .......If it is a Zenith with a bad tube BAIL on it .
Advise the customer about Zenith's recent problem with CRT's and cut your
losses .
docwade2@xxxxxxxx Hello LEATHERMAN !
----- Original Message -----
From: "Chaz" <chaz@xxxxxxxxxxx>
To: "fantaj" <fantaj@xxxxxxx>; <techassist@xxxxxxxxxxxxx>
Sent: Wednesday, October 17, 2001 8:12 PM
Subject: [TechAssist] Re: Zenith SM2727RK - hit by lightning (dead set)
>
> Thank you for your input. I also recieved Fuzz's info file detailing this
idea -
> thanks to Doug Keller.
>
> Chaz
> -------
>
> >
> > You can change how the crt filaments gets its voltage by doing a wire
wrap
> > of the IHVT and cutting the old leads.
> > it does work and should also explain to customer you saved the crt.
> > fuzzzzzzz
> > ----- Original Message -----
> > From: <gulftech@xxxxxxxx>
> > To: <techassist@xxxxxxxxxxxxx>
> > Cc: <techassist@xxxxxxxxxxxxx>
> > Sent: Wednesday, October 17, 2001 9:37 AM
> > Subject: [TechAssist] Re: Zenith SM2727RK - hit by lightning (dead set)
> >
> >
> >
> > Chaz,
> >
> > I had an 8th grade English teacher with a sign on the chalkboard which
> > read: "Fail now. Avoid the June rush." I will adapt that to say to
you:
> > Bail now. Avoid losing your shirt.
> >
> > There is every indication that the crt has been giving problems for some
> > time ("The video would go out (white screen) and after powering off to
> > cool down, the video would appear again.") The customer MAY have been
> > hit by lightning, but a better chance the crt took out the p/s. At any
> > rate, if you fix the chassis, it will come back to bite you.
> >
> >
> > Ken Smith
> > Gulf Technical Services
> > 3034 Gulf Breeze Parkway
> > Gulf Breeze, FL 32561
> > 850-934-8324 (Voice) 850-932-0819 (Fax)
> >
> > ---------------------
> >
> > On Tue, 16 Oct 2001 23:12:10 -0500 "Chaz" <chaz@xxxxxxxxxxx> writes:
> > >
> > > Late yesterday, I recieved a hi-fi Zenith TV that had been hit with
> > > lightning
> > > (SM2727RK). I checked everything on Tech- Assist, even for close
> > > numbers,
> > > and found nothing.
> > >
> > > Visual inspection shows blown FX3401 fuse, and what looks like the
> > > p.s.
> > > bridge of diodes (burnt) close to the ICX3431 (I believe) STR????
> > > regulator. I
> > > can't read anything on these diodes nor make out well the PCB
> > > location
> > > descripts. I also suspect that the STR4400 (not able to read well
> > > either) volt-
> > > reg is shorted - ohming it says so anyway. Without knowing what
> > > these
> > > parts are, and resourcing cost of regulator, I can't do much with it
> > > right now
> > > w/o chancing more part damage. Customer wants it fixed but also is
> > > a little
> > > short on budget. Anyone have any ideas, schem, or tips on this.
> > > Part
> > > descriptions would be a big help to start with.
> > >
> > > I'm not sure of the chassis number for this but, the only label I
> > > found in the
> > > unit shows SM2727Rk EU-593 F49702 (numbers under each other).
> > >
> > > Customer had said before it got hit with lightning, that the video
> > > would go out
> > > (white screen) and after powering off to cool down, the video would
> > > appear
> > > again. He said he "just lived with it until this happened".
> > >
> > > Thanks in advance.
> > > Chaz
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>
>
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