[TechAssist] Re: Toshiba 27AF41 Shuts Down On Power Up
- From: "Shoreline Electronics" <jstielau@xxxxxxxx>
- To: <techassist@xxxxxxxxxxxxx>
- Date: Mon, 3 May 2004 15:48:30 -0400
CRT checks good and with CRT board , yoke and anode....disconnected , it
still shuts down.
=================================
Jeff Stielau
Shoreline Electronics Repair
344 East Main Street
Clinton,CT 06413
(860)399-1861
(860)664-3535 FAX
jstielau@xxxxxxxx
=================================
----- Original Message -----
From: "Peter oliver" <oliver_peter1@xxxxxxxxxxx>
To: <techassist@xxxxxxxxxxxxx>
Sent: Monday, May 03, 2004 3:12 PM
Subject: [TechAssist] Re: Toshiba 27AF41 Shuts Down On Power Up
> 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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