Question about Technics Audio Players & Recorders

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I have a Technics SA DA 10 Surround sound receiver, it’s almost 20 years old but it still produces a lovely sound, at the moment I have notice the backlight surrounding the volume control is inoperative and when adjusting the volume with my remote, it will lower the volume but not raise it. Any tips would be gratefully received

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4 Suggested Answers

Anonymous

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Posted on Jan 02, 2017

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Jaime Hernandez

  • 2337 Answers

SOURCE: Technics SA-GX5OO Receiver

The noise you hear when increasing or decreasing the volume control is due to dust particles inside the potentiometer, you should use a contact cleaner to get rid of the noise by spraying it inside the volume control. Radio Shack should have the contact cleaner or you can google it.
The other failure could be some dry solder joints around components that overheat such as the amplifier IC or transistors, high power resistors, etc.

Posted on Oct 17, 2008

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ABRsvcs

  • 4234 Answers

SOURCE: Technics SA-DX950 surround sound problems

The most likely culprit here is the output protection relay. The contacts are a little corroded and the higher volume "jumps the gap" temporarily "cleaning" the contacts. The relay should be changed. I don't have the manual with me, but the following relays are in the unit. One of them is the speaker relay:

Part # Cost
RSY0054-C $12.63
RSY0040M-0 $ 5.89
K6B2AHA00014 $ 8.14


Dan

Posted on Nov 12, 2008

dunnbiker

David Dunn

  • 8546 Answers

SOURCE: I have an old Technics

Reliance on the remote instead of walking across the room to touch the unit will not solve anything. On many receivers, Muting is cancelled if the volume knob is turned to a louder level. Try that.

There's a used original remote for $12 delivered on eBay right now.

http://cgi.ebay.com/Technics-RAK-SA301P-Audio-Remote-Tuner-TV-VCR-CD-/230644267386?pt=LH_DefaultDomain_0&hash=item35b378397a

Posted on Jul 09, 2011

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