[TechAssist] Re: Toshiba 43H71 repeat vertical failure

  • From: "Phillip R. Hull" <phil245@xxxxxxxxxxxxx>
  • To: <techassist@xxxxxxxxxxxxx>
  • Date: Fri, 11 Jun 2004 17:01:10 -0400

It could be a select part that must have certain tolerances
Phillip R Hull     STET
phil245@xxxxxxxxxxxxx
FAX 517--569-3075
Professional Technicians only
----- Original Message ----- 
From: "Joel Jacobs" <jj@xxxxxxxxxxxxxxxx>
To: <techassist@xxxxxxxxxxxxx>
Sent: Friday, June 11, 2004 4:40 PM
Subject: [TechAssist] Re: Toshiba 43H71 repeat vertical failure


> It's a puzzle isn't it?  Mine is in an OEM bag that says LA7833S on the
bag
> but no 'S' on the part.  Maybe the 'S' means 'Select' where they torture
> them in a tester and if they survive.... Who knows?
> I surely don't remember there being an 'S' on the original either.
> Joel Jacobs
> Ohio Consumer Electronics
> Pickerington, Ohio
>
> ----- Original Message -----
> From: "Phillip R. Hull" <phil245@xxxxxxxxxxxxx>
> To: <techassist@xxxxxxxxxxxxx>
> Sent: Friday, June 11, 2004 4:31 PM
> Subject: [TechAssist] Re: Toshiba 43H71 repeat vertical failure
>
>
> > I ordered the IC (online) and it said LA7833S right on the invoice.
> > Phillip R Hull     STET
> > phil245@xxxxxxxxxxxxx
> > FAX 517--569-3075
> > Professional Technicians only
> > ----- Original Message -----
> > From: "Phillip R. Hull" <phil245@xxxxxxxxxxxxx>
> > To: <techassist@xxxxxxxxxxxxx>
> > Sent: Friday, June 11, 2004 4:13 PM
> > Subject: [TechAssist] Re: Toshiba 43H71 repeat vertical failure
> >
> >
> > > Well I called Toshiba and asked if they knew the difference between
the
> > two
> > > ic's and they didn't.   I don't have one in stock to compare,  but I
> will
> > > order one from Toshiba today and see what I get.
> > >
> > > Phillip R Hull     STET
> > > phil245@xxxxxxxxxxxxx
> > > FAX 517--569-3075
> > > Professional Technicians only
> > > ----- Original Message -----
> > > From: "Joel Jacobs" <jj@xxxxxxxxxxxxxxxx>
> > > To: <techassist@xxxxxxxxxxxxx>
> > > Sent: Friday, June 11, 2004 3:19 PM
> > > Subject: [TechAssist] Re: Toshiba 43H71 repeat vertical failure
> > >
> > >
> > > > Well, I got my parts from tritronics today.  The bag says p/n
23319787
> > > > LA7833S and it's a Toshiba bag, but the part in the bag is just a
> plain
> > > old
> > > > (overpriced) LA7833 - no 'S':>(
> > > > Joel Jacobs
> > > > Ohio Consumer Electronics
> > > > Pickerington, Ohio
> > > >
> > > > ----- Original Message -----
> > > > From: "Phillip R. Hull" <phil245@xxxxxxxxxxxxx>
> > > > To: <techassist@xxxxxxxxxxxxx>
> > > > Sent: Wednesday, June 09, 2004 11:34 AM
> > > > Subject: [TechAssist] Re: Toshiba 43H71 repeat vertical failure
> > > >
> > > >
> > > > > That is the correct part # for LA7833S
> > > > > Phillip R Hull     STET
> > > > > phil245@xxxxxxxxxxxxx
> > > > > FAX 517--569-3075
> > > > > Professional Technicians only
> > > > > ----- Original Message -----
> > > > > From: "Joel Jacobs" <jj@xxxxxxxxxxxxxxxx>
> > > > > To: <techassist@xxxxxxxxxxxxx>
> > > > > Sent: Wednesday, June 09, 2004 11:06 AM
> > > > > Subject: [TechAssist] Re: Toshiba 43H71 repeat vertical failure
> > > > >
> > > > >
> > > > > > I found a couple at Tritronics but not under the LA7833S number.
> If
> > I
> > > > put
> > > > > > in the Toshiba P/N  23319787 they showed it in stock.  Keeping
my
> > > > fingers
> > > > > > crossed that it's the right part...
> > > > > > Joel Jacobs
> > > > > > Ohio Consumer Electronics
> > > > > > Pickerington, Ohio
> > > > > >
> > > > > > ----- Original Message -----
> > > > > > From: "Phillip R. Hull" <phil245@xxxxxxxxxxxxx>
> > > > > > To: <techassist@xxxxxxxxxxxxx>
> > > > > > Sent: Wednesday, June 09, 2004 9:42 AM
> > > > > > Subject: [TechAssist] Re: Toshiba 43H71 repeat vertical failure
> > > > > >
> > > > > >
> > > > > > > I have always ordered mine from Toshiba.  But I think you can
> > order
> > > > from
> > > > > > > partsolver.com  or the Sears web site. www3.sears.com
> > > > > > > Phillip R Hull     STET
> > > > > > > phil245@xxxxxxxxxxxxx
> > > > > > > FAX 517--569-3075
> > > > > > > Professional Technicians only
> > > > > > > ----- Original Message -----
> > > > > > > From: "Joel Jacobs" <jj@xxxxxxxxxxxxxxxx>
> > > > > > > To: <techassist@xxxxxxxxxxxxx>
> > > > > > > Sent: Tuesday, June 08, 2004 5:27 PM
> > > > > > > Subject: [TechAssist] Re: Toshiba 43H71 repeat vertical
failure
> > > > > > >
> > > > > > >
> > > > > > > > No kidding?  I don't have the original anymore but I didn't
> > notice
> > > > > that.
> > > > > > > If
> > > > > > > > that's the case then theta's probably the problem..
> > > > > > > > I haven't found anywhere that has the 'S' version in stock
> yet -
> > > > > anyone
> > > > > > > know
> > > > > > > > where I could order one?  MCM has 24 day backorder -
> Tritronics
> > > has
> > > > > none
> > > > > > > but
> > > > > > > > can order one - B&D does not list it - slelectronics.net
lists
> > two
> > > > > > > la7833's
> > > > > > > > one from Korea and one from Japan but neither is the 'S'
> > > version...
> > > > > > > > Joel Jacobs
> > > > > > > > Ohio Consumer Electronics
> > > > > > > > Pickerington Ohio
> > > > > > > >
> > > > > > > >
> > > > > > > > ----- Original Message -----
> > > > > > > > From: "Phillip R. Hull" <phil245@xxxxxxxxxxxxx>
> > > > > > > > To: <techassist@xxxxxxxxxxxxx>
> > > > > > > > Sent: Tuesday, June 08, 2004 4:03 PM
> > > > > > > > Subject: [TechAssist] Re: Toshiba 43H71 repeat vertical
> failure
> > > > > > > >
> > > > > > > >
> > > > > > > > > That set uses a LA7833S     and it may be different
because
> > NTE
> > > > > showed
> > > > > > > no
> > > > > > > > > sub on the web site.
> > > > > > > > > Phillip R Hull     STET
> > > > > > > > > phil245@xxxxxxxxxxxxx
> > > > > > > > > FAX 517--569-3075
> > > > > > > > > Professional Technicians only
> > > > > > > > > ----- Original Message -----
> > > > > > > > > From: "Ohio Consumer Electronics" <jj@xxxxxxxxxxxxxxxx>
> > > > > > > > > To: "Tech Assist" <techassist@xxxxxxxxxxxxx>
> > > > > > > > > Sent: Tuesday, June 08, 2004 3:31 PM
> > > > > > > > > Subject: [TechAssist] Toshiba 43H71 repeat vertical
failure
> > > > > > > > >
> > > > > > > > >
> > > > > > > > > > Set came in with no vertical deflection. Replaced LA7833
> and
> > > it
> > > > > > looked
> > > > > > > > > fine.
> > > > > > > > > > About three weeks later it's back with same problem.  I
> put
> > in
> > > a
> > > > > new
> > > > > > > > > LA7833
> > > > > > > > > > and it blew immediately!  I couldn't find any other
> problem
> > so
> > > I
> > > > > > > figured
> > > > > > > > > > maybe a bad new part so replaced it again and it worked
ok
> > > this
> > > > > > time.
> > > > > > > > Ran
> > > > > > > > > a
> > > > > > > > > > bit hot after a while but that's normal with these newer
> > cost
> > > > > > reduced
> > > > > > > > > > designs. I sent it home.   Well 1 week later and it's
back
> > > > again!
> > > > > > > Same
> > > > > > > > > > problem.  Customer said it played all day the day before
> but
> > > > today
> > > > > > it
> > > > > > > > > played
> > > > > > > > > > only 10 minutes and went out.  The LA7833 would not have
> > been
> > > > that
> > > > > > hot
> > > > > > > > > after
> > > > > > > > > > only 10 minutes so I don't think it's a thermal
problem -
> > that
> > > > and
> > > > > > the
> > > > > > > > > fact
> > > > > > > > > > that one blew right away.  I can't find any bad
> connections
> > > > > > anywhere.
> > > > > > > I
> > > > > > > > > > really need some help with this one, the customers been
> > pretty
> > > > > good
> > > > > > > > about
> > > > > > > > > it
> > > > > > > > > > so far but I think this may be my last chance to get it
> > > right...
> > > > > > > > > > I'll appreciate any tips/suggestions - Thanks Much!
> > > > > > > > > >
> > > > > > > > > > Joel Jacobs
> > > > > > > > > > Ohio Consumer Electronics
> > > > > > > > > > Pickerington, Ohio
> > > > > > > > > >
> > > > > > > > > >
> > > > > > > > >
> > > > > > > >
> > > > > > >
> > > > > >
> > > > >
> > > >
> > >
> >
>
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