[TechAssist] Re: Toshiba 27A51 dead
- From: "Phillip R. Hull" <phil245@xxxxxxxxxxxxx>
- To: <techassist@xxxxxxxxxxxxx>
- Date: Thu, 7 Aug 2003 12:54:43 -0400
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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