Radio shack stereo disco mixer

[Alpi]

Can anybody tell me where to find a schematic of this. It's an all
transistor one and the number is 32-1100b. But I think that the 320-1101A is
the same.
When I connect the battery, the voltage lowers to 2 V indicating a shortage.
But without a schematic it will difficult to find the problem.
Thanks

--
Regards
alpi

p.s. delete NS- in th address

 

[eddumokweer]

Check the problem with a ohm-meter. Suspect a electrolityc capacitor, a
diode or a stabilisation regulator in the powerpart first.

Greetings Peter

"Alpi" <NS-alain.pinchemail@skynet.be> schreef in bericht
news:3f2cfdbd$0$17883$ba620e4c@reader1.news.skynet.be...

Can anybody tell me where to find a schematic of this. It's an all
transistor one and the number is 32-1100b. But I think that the 320-1101A
is
the same.
When I connect the battery, the voltage lowers to 2 V indicating a
shortage.
But without a schematic it will difficult to find the problem.
Thanks

--
Regards
alpi

p.s. delete NS- in th address

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[Alpi]

I have just found a problem. The mixer has a generator which delivers about
20 V DC build around a transistor C1815. This transistor was out. I could
replace it by another one coming from a junk. Now I can perfectly hear with
the headphone what is played. But I think one output channel is wrong. To be
solved tomorrow.

--
Regards
alpi

p.s. delete NS- in th address
"David" <dkuhajda@locl.net.spam> a écrit dans le message de
news:3f2d4118@news.greennet.net...

Should be EASY to find without a schematic.
Apply an external power supply that is capable of supplying the current
demands of the unit with the problem. Slowly bring up the power supply to
3
or so volts. Whatever components are shorted causing the problem will get
very hot in a minute or two and be easy to find. Do not forget that the
series pass regulator will also be getting hot, so remove the other
components that are downstream first before assuming it is bad.
David

Alpi <NS-alain.pinchemail@skynet.be> wrote in message
news:3f2cfdbd$0$17883$ba620e4c@reader1.news.skynet.be...
Can anybody tell me where to find a schematic of this. It's an all
transistor one and the number is 32-1100b. But I think that the
320-1101A
is
the same.
When I connect the battery, the voltage lowers to 2 V indicating a
shortage.
But without a schematic it will difficult to find the problem.
Thanks

--
Regards
alpi

p.s. delete NS- in th address