[TechAssist] Re: scott amplifier A4001 model,need schematic
- From: "Peter oliver" <oliver_peter1@xxxxxxxxxxx>
- To: techassist@xxxxxxxxxxxxx
- Date: Fri, 20 Dec 2002 23:30:50 +0000
Most of these I just rely on the sides being simmilar or mirror imaged,
Schematics were hard to get unless you did warranty. Their are a few sellers
online of schematics that list it (google search). rebuilding these things a
second time is often worse than the first.
Peter Oliver
Tucson Radio Tv
From: "Wilfred Blakey" <wblakey@xxxxxxxxxxxxxxxx>
Reply-To: techassist@xxxxxxxxxxxxx
To: <techassist@xxxxxxxxxxxxx>
Subject: [TechAssist] Re: scott amplifier A4001 model,need schematic
Date: Fri, 20 Dec 2002 15:21:51 -0500
I had rebuilt it already about one month ago and it seemed to work well but
when he got it home he said only one side worked and when he went to "play"
with the speaker wires it went poof and all "***" broke loose. I suspect the
speakers are definitely at fault. They tell me that the unit has been in a
cabinet since new , even when moving they kept it in the same cabinet and
only removed it when they took it to me.I can't read the numbers on the TO
220 transistors toward the front.
Blakey TV
Kirkland Lake,Ont.,Canada
----- Original Message -----
From: "Peter oliver" <oliver_peter1@xxxxxxxxxxx>
To: <techassist@xxxxxxxxxxxxx>
Sent: Friday, December 20, 2002 2:47 PM
Subject: [TechAssist] Re: scott amplifier A4001 model,need schematic
>
> That Scott is probbably name only depends on who really made it...
Probbably
> made mid late '80s the same time orion was using the name for its vcr's
too
> (or someone was using it on the vcr) If I rember correctly these amps
were
> pretty simple compaired to sony more like some of the items put out under
> the teac logo and a few other lines like MTS. Since everthing is direct
> coupled a falt in the output stage or drivers can cause the preamps to
> meltdown, open transistors are a little more atypical than shorted one,
its
> possible Did you get any indication from the customer as to the mode of
> failure... moved, moved while on, Car speakers, Subwoofer, Cat/mice ate
> wires, wired to another amp, Striped speaker wire and pluged into ac
outlet,
> Lightning, etc ...... You might be able to replace the bured/blown parts,
> and the resitors in the set and it will work but that is a big ?...
> Defeinately need to test the customers speakers or it will happen again
with
> that kind of damage to the output stages.
>
> Peter Oliver
> Tucson Radio TV
>
>
>
>
>
>
> From: "Wilfred Blakey" <wblakey@xxxxxxxxxxxxxxxx>
> Reply-To: techassist@xxxxxxxxxxxxx
> To: "tech assist" <techassist@xxxxxxxxxxxxx>
> Subject: [TechAssist] scott amplifier A4001 model,need schematic
> Date: Fri, 20 Dec 2002 13:45:10 -0500
>
> I have a Scott stereo with a problem of too much voltage. I checked it
out
> and found two of the outputs on one channel open and two transistors
further
> to the front with holes in them and burned off legs. Also three small
> electrolytics are exploded so I take it that there must have been a
problem
> with the supply voltages. I do not think this company is still in
business
> now but am not sure.
> Could I ask if anyone has a diagram I could get sent to me by pdf or
other
> means? TIA
> Blakey TV
> Kirkland Lake,Ont.,Canada
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