Question about Technics Audio Players & Recorders

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No sound from left channel on my Technics SA-R 230

No sound from left channel on my Technics SA-R230 Receiver no matter what source of input is selected. Would like to know what internal part / parts need to be replaced in order to repair.

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  • Technics Master
  • 1,054 Answers

May just be bad connections on the speaker relay. Flip the main board over, and check those connections. It is pretty common on these older models.

Posted on Jan 18, 2013

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Posted on Jan 02, 2017

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  • 125 Answers

SOURCE: Noisy channel of receiver

Generally, crackling noises come from anyplace there is a mechancial connection for the sound signal. The volume control, main/remote speaker switch and possibly the headphone jack. That is where the contacts must be cleaned, but it requires dissassembly. Try operating the main/remote speaker switches, and plug/unplug a headphone several times. I am assuming there is still audio behind that crackling. Are you using both main and remote speakers simultaneously?

Posted on Apr 09, 2008

  • 1 Answer

SOURCE: Technics sa 400 Receiver

Checked fuses then sprayed contact cleaner on the fuses and the fuse holders. The speakers began to work correctly.

Posted on May 29, 2009

  • 1 Answer

SOURCE: Technics sa-g78 no sound from front speakers

Buy yourself a nice Krell amp!!

Posted on Jun 25, 2009

  • 21 Answers

SOURCE: A and B channels both have left speakers out.

Use a multitester to check the amps then you can find which amp it is.Under the cover youll see two boards on a aluinum plate.

Posted on Oct 27, 2009

  • 4234 Answers

SOURCE: My Technics stereo system ...the display screen shows nothing

The question is, do you hear any sound? Is just the display off or is the entire unit shutdown? Can you tell?

These displays are known to develope poor solder connections at the power input and ground pins. If you can solder, open up the unit (unplugged of course) and examine the pins for the display. This will be on the PC board attached to the front panel. The pins at either end of a long line of pins will be the power and ground pins. Reasolder those pins, taking care not to short the pins together and try the unit once done. If that does not resolve the problem (assuming it is just a display problem), update this with as many details as you can about the behavior of the unit and we'll look further.

Dan

Posted on Nov 18, 2009

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http://archiwumallegro.pl/technics_shac500d_procesor_surround_ddigital_dts-1215399983.html

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