Question about Technics SA-DX950 Receiver

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Adam's Problem Hi there my name is Adam I have a SA-DX950 All I installed to the back is my computer Cables Red And White, My speakers encluding a floor sub woofer The promblem is when I turn on the unit it shoots back to off and say I over loaded it turn down all Volumes and this time I can Bearly Hear it and when I tujrn it up slowly it dose the same thing Whats Wrong

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You have a short circuit occurring in speaker outputs. If you are using the high power inputs of the sub, try disconnecting them first. check polarity of speaker connections to sub also.

Posted on Dec 10, 2007


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I have a technics reciver SA-DX950 when i tnru on it say F70 on the display

problem is oxidation...Remove and clean the ends of cables with sandpaper slowly...there is slim and flat cable into the reciver (together with five cable)...specially remove it's socket and clean it...

May 09, 2010 | Technics SA-DX950 Receiver

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How do i connect Logitech X-530 to my TV?

Connect the audio cables (red to red, white to white) from the audio out on the back of your TV to the audio in on your speaker system.

Feb 22, 2010 | Logitech X-530 Computer Speakers

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No sound from front speakers

Check if a or b or what is reflected for speaker.

Oct 27, 2017 | Technics SA-DX950 Receiver

1 Answer

Technics SA-DX950 intermitently sounds blown out

There are poor solder connections at the output amp pacs and the voltage regulators. Once these are resoldered the problem should go away. If you can solder, resolder any connections that appear grainy or have rings. If you can not, this should be effectively a labor only repair for any shop that works on audio gear.


Feb 18, 2009 | Technics SA-DX950 Receiver

2 Answers

Technics SA-DX950 has lost digital sound

This may sound like a silly check, but verify that the tape monitor switch is not engaged. What is the quality of the sound when turned up? Is the cound clear or raspy?


Dec 04, 2008 | Technics SA-DX950 Receiver

1 Answer

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


Nov 12, 2008 | Technics SA-DX950 Receiver

1 Answer


That speaker equipment should've came with an adapter to audio cables

its a rectangle that has 3 ports (orange,black,green) that lead out to 2 ports (red,white) from there u need the audio cables or AV cables
connected the red/white prong to the red/white ports on the adapter.
then connect the other end to the back of the tv where you will c white yellow and red

for dvd player connect it to the white and red ports

dont wry about the yellow 1 that is for video

Oct 18, 2008 | Logitech X-530 Computer Speakers

1 Answer

Technics SA-DX950

sounds like the speaker protection relay is operating probably from a dc condition appearing on power amplifiers outputs. probable cause is dry solder joints to the output stages. will need some reworking of the PA stage soldering to fix.

Dec 10, 2007 | Technics SA-DX950 Receiver

3 Answers

Technics SA-DX950

when turn on receiver , after few seconds got message
F70. when wants to do any operation with receiver got message SWITCH POWER OFF

Jun 25, 2007 | Technics SA-DX950 Receiver

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