[TechAssist] Re: Toshiba 27AF41 Shuts Down On Power Up
- From: "Peter oliver" <oliver_peter1@xxxxxxxxxxx>
- To: techassist@xxxxxxxxxxxxx
- Date: Mon, 03 May 2004 19:12:13 +0000
Have you checked the CRT For a short?
Peter Oliver
Tucson Radio TV
From: "Shoreline Electronics" <jstielau@xxxxxxxx>
Reply-To: techassist@xxxxxxxxxxxxx
To: "Tech Assist" <techassist@xxxxxxxxxxxxx>
Subject: [TechAssist] Toshiba 27AF41 Shuts Down On Power Up
Date: Mon, 3 May 2004 15:05:59 -0400
Make : Toshiba
Model : 27AF41
Problem : Shuts down on power up.
Lifting the collector lead on the horizontal output lets the set stay on
with a B+ on the collector pad of 137VDC......which looks to be OK as the
set looks like it is designed to regulate at 125 with a full load on the
supply.
Changed the flyback.
Collector pulse looks good driving it with a Sencore TVA92. No excessive
load shown
We do have the schematics we downloaded from Toshiba but are confused a bit
on this one.
I see a Fail Safe circuit on the print but I'm a bit miffed as to it's exact
operation......it this another type of X-ray protect?
Anyone have experience on this newer chassis?
=================================
Jeff Stielau
Shoreline Electronics Repair
344 East Main Street
Clinton,CT 06413
(860)399-1861
(860)664-3535 FAX
jstielau@xxxxxxxx
=================================
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