[TechAssist] Re: Toshiba DVD/VCR Deck - Dead After Storm
- From: mebonnell@xxxxxxxxx (Old TV Man)
- To: techassist@xxxxxxxxxxxxx
- Date: Tue, 19 Jul 2005 12:45:28 -0500
I use a Lil Bitty Tester.
It will test transistors, FET's, SCR's and triacs etc.
Max Bonnell
Bonnell TV
Robinson, IL
Sender: techassist-bounce@xxxxxxxxxxxxx From:
gary@xxxxxxxxxxx(Gary=A0McCartney) Date: Tue, Jul 19, 2005, 12:46pm
(CDT+1) To: techassist@xxxxxxxxxxxxx Subject: [TechAssist] Re: Toshiba
DVD/VCR Deck - Dead After Storm Reply=A0to: techassist@xxxxxxxxxxxxx
Usually shorts. I like to compare the suspect FET with a new one,
measuring with my Fluke multimeter.
Gary McCartney
McCartney Electronics
Guelph Ontario Canada
Est. 1984
email: gary (at) number63.ca
David Lessard wrote:
I hope this doesn't come off sounding like stupid questions. I've always
been told no questions are too stupid so here it goes. When the main
drive FET in a SMPS goes bad do they usually open or short? What is the
most reliable method of testing a FET? Thanks.
David Lessard
Mr_fixit@xxxxxxxxxxxx
Alexandria, Ontario, Canada
K0C-1A0
-----Original Message-----
From: techassist-bounce@xxxxxxxxxxxxx
[mailto:techassist-bounce@xxxxxxxxxxxxx] On Behalf Of Tel-Tek
Electronics
Sent: Tuesday, July 19, 2005 7:28 AM
To: techassist@xxxxxxxxxxxxx
Subject: [TechAssist] Re: Toshiba DVD/VCR Deck - Dead After Storm
David...
Need a Model Number.
Biggest thing to go on these, small diodes in the Primary of SMP's. Also
a
couple of 1 Meg 1/4 watt resistors in series, which I think they have
changed to a single 2 meg.
But without a Model Number...not sure.
-Ed-
Tel-Tek Electronics
Ontario-Canada
teltek3@xxxxxxxxxxxx
----- Original Message -----
From: "David Lessard" <mr_fixit@xxxxxxxxxxxx>
To: <techassist@xxxxxxxxxxxxx>
Sent: Monday, July 18, 2005 9:58 PM
Subject: [TechAssist] Toshiba DVD/VCR Deck - Dead After Storm
This unit was manufactured November 2004. If the customer brings this
to
an authorized Toshiba shop will it be repaired under warranty or will
the shop know the SMPS (and whatever else) was damaged by a power
surge
rendering the warranty null and void? Does it matter how the damage
occurred while under warranty? I know there is the obvious, i.e.
peanut
butter sandwich inside. Does anyone have access to the above
schematic,
if it's available please send it along. BTW SMPS is dead; I mean
really
dead, there are no pulses at the gate of FET, nothing. I hate SMPS's,
it
seems that's all I do lately.
David Lessard
Mr_fixit@xxxxxxxxxxxx
Alexandria, Ontario, Canada
K0C-1A0
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