[TechAssist] Re: Toshiba 27A51 dead
- From: walter wood <wwood_38478@xxxxxxxxx>
- To: techassist@xxxxxxxxxxxxx
- Date: Thu, 7 Aug 2003 10:42:49 -0700 (PDT)
Thanks, I'll take it out of circuit and check.
Seems OK.
I have an up to date WinsTips, and did not see a
single entrey for 27A51!!!
The 27A50 is different.
Walter
--- "Phillip R. Hull" <phil245@xxxxxxxxxxxxx>
wrote:
> Lightning usally shorts D-514
> Its in Winstips
>
> Phillip R Hull STET
> FAX 517--569-3075
> ----- Original Message -----
> From: "teltek3" <teltek3@xxxxxxxxxxxx>
> To: <techassist@xxxxxxxxxxxxx>
> Sent: Thursday, August 07, 2003 12:40 PM
> Subject: [TechAssist] Re: Toshiba 27A51 dead
>
>
> > Walt;
> > Will send you a couple of Flow Charts shortly,
> pick the one that goes with
> > that particular chassis.
> >
> > -Ed-
> > Tel-Tek Electronics
> > Ontario-Canada
> > teltek3@xxxxxxxxxxxx
> > ----- Original Message -----
> > From: "walter wood" <wwood_38478@xxxxxxxxx>
> > To: "Tech Assist" <techassist@xxxxxxxxxxxxx>
> > Sent: Thursday, August 07, 2003 11:48 AM
> > Subject: [TechAssist] Toshiba 27A51 dead
> >
> >
> > >
> > >
> > > > Haven't found any flow charts or theory on
> this
> > > > one.
> > > > Likely Toshiba didn't build it anyway.
> > > >
> > > > DEAD, nothin' at all when power is pushed.
> > > > Lightning likely, but nothing burned and
> fuse
> > > > good.
> > > On primary side
> > > > IC501
> > > > pin 1 167vdc
> > > > 2 0
> > > > 3 0
> > > > 4 12 to 14vdc
> > > > 5 0
> > > On secondary side
> > > > D 514 2.1 to 2.5vdc
> > > > D 511 0 to 0.6
> > > > D 512 4 to 5
> > > > D 510 86 to 91
> > > > D 505 0
> > > > D 509 30
> > > >
> > > > I'm having a hard time deciding if the Scan
> and
> > > > Data lines are being pulled down, as it
> looks
> > > > like
> > > > the 5 volts isn't being developed in the
> first
> > > > place.
> > > Anyone seen one of these before?
> > > > Ideas??
> > > > Starting place??
> > > > By the way, the 167 volts remains even when
> the
> > > > set
> > > > is unplugged.
> > > > perhaps something open in the primary?/
> > > > Walter
> > >
> > >
> > >
> > > =====
> > > 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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=====
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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