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Greetings. I'm thinking of buying a Technics SE- A 900 power amp but the lights don't work. Does any body know where I can fix and approx how much. Many thanks

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  • Audio Player... Master
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Personally I wouldn't buy it. A power failure could indicate a serious problem. Most amp power failures are caused by power transistor failures. Sometimes these transistors can cost a lot of money if they are not common type. I once had a amp where one transitor would cost £50 to replace, and it need 3 of them!

Posted on Nov 18, 2014

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Posted on Jan 02, 2017

marsrover
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SOURCE: My technics se hd 51

please bring a good contact cleaner from radio shack near you and apply the spray over the socket of the headphone(the place where you put your headphone jack)take headphone jack out and apply spray in and insert the jack in and out many times.-also check your system setup and confirm that all speaker are on- no mute button pressed-no cable is disconnected.

Posted on Jul 13, 2008

  • 1 Answer

SOURCE: no cable for technics

I had the same problem with my sua900s pre-amp.
If it's the same cable, you need a (I think 6 pin) mini din cable, male to male. It's sometimes called a PS2 cable (nothing to do with Play Station!). It's the same cable that runs from your mouse into your pc and is readily available for about £5 from online computer retailers. Check the number of pins first though!!

Posted on Feb 18, 2009

technical114
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SOURCE: is there volume adjustments on a technics amp

Technics SE-TX100 is a power amplifier and has no volume controls on it. Uoy can control the volume from the preamplifier tha will give the signal at SE-TX100.

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Posted on May 11, 2010

caroldon
  • 17129 Answers

SOURCE: Technics SE-A 2000. Powers up

It is not so easy to probe into to find a protection fault condition. The fault can be your output drivers- the mosfets fitted for both the channels, Use a meter after disconnecting to check for short in the drivers. Disconnect the positive and negative voltages to the output and see if the protect changes.
If so replace the outputs. If not there can be issues in the mother board, maybe the protect circuit by itself is shutting off due to a faulty bias , maybe a leak in any voltage/current sensing circuit.Also disconnect the speakers and test, if the protect is off then check for short on the speakers.

Posted on Apr 28, 2011

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No cable for technics


I had the same problem with my sua900s pre-amp.
If it's the same cable, you need a (I think 6 pin) mini din cable, male to male. It's sometimes called a PS2 cable (nothing to do with Play Station!). It's the same cable that runs from your mouse into your pc and is readily available for about £5 from online computer retailers. Check the number of pins first though!!

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