[TechAssist] Toshiba 27AF41 Shuts Down On Power Up

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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