[TechAssist] Re: Toshiba 20A42, Dead with two shorted rectifiers
- From: "Intrepid Video Support" <support@xxxxxxxxxxxxxxxxxx>
- To: <techassist@xxxxxxxxxxxxx>
- Date: Wed, 30 Jun 2004 17:07:55 -0400
Art,
Posting the TAC chassis number may yield more responses.
Jeff
--
Intrepid Video TV/VCR Repair
263 S Front St, Steelton PA 17113
717-939-7708; (F) 717-564-4952
www.intrepid-video.com www.tech-repair.net
----- Original Message -----
From: "art bevilacqua" <abevilac@xxxxxxxxxxxxx>
To: <techassist@xxxxxxxxxxxxx>
Sent: Wednesday, June 30, 2004 10:43 AM
Subject: [TechAssist] Toshiba 20A42, Dead with two shorted rectifiers
This set seems to have taken a lightning hit, two rectifiers and the fuse were
gone.
Now it won't come up all the way, it seems that high voltage might be starting,
barely, but then
everything is quiet. B+ voltage doesn't seem right, it's sitting at 165 when
the set is off, when the set
is turned on, it takes on different random values, 105 one time, 115 the next,
110 the next time. The B+
adjust pot has no affect. Other PS secondary voltages seem to be present, the
power led is on when the set
is on. I have a schematic, but some of the voltages listed there seem wrong, as
though they were measured
from the wrong reference ground.
The set is not worth doing much to, but if someone has any ideas that would be
appreciated. Thanks
Art Bevilacqua
Essex Radio & TV
40 Main St
Essex, MA 01929
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