Question about Technics SA-DX950 Receiver

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I have a Technics SA DX950 and have been getting a F70 error code. What is this and how do I fix it?

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SOURCE: 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

Posted on Sep 24, 2008

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SOURCE: i have a technics reciver SA-DX950 when i tnru on

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...


Posted on Aug 06, 2010

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1 Answer

What causes f70 code


This may be blown fuze. This is an informative forum. Read answer one-third down page. Hope this helps Technics stereo receiver F70 error code CK5 Forums

Mar 11, 2015 | Technics SA-DX750 Receiver

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I have a Technics SA - DX750 Amp Everytime I turn it on I get an error message F70 and then it requests that I turn the power off. This is all it does now, so sound. How do I solve this issue I have...


Hi!

The F70 error certainly indicates a blown fuse inside.
The real problem is why the fuse is blown: there are only two possible reasons
1. there is a short circuit on the output (lines or speakers)
2. you have a blown output transistor (and that means some work and skills to replace).


To be sure, please change the fuse with a same rated fuse (buy more than one because it can blow again). Disconnect the speakers and turn the amp on. If the fuse blows again, it is sure something wrong with the output transistors. If the fuse remains ok, then please check all the wiring to the speakers.

Hope it helped.

Regards,

Bogdan

Aug 21, 2011 | Technics SA-DX950 Receiver

1 Answer

SA-DX750 error F70


I have a technics sa dx 750 receiver that cut...

Dec 21, 2010 | Technics SA-DX750 Receiver

1 Answer

Technics sa-dx 950. F70 on display. ???


This is a shorthand version of protect. See the link below. If you have more questions, please post them here and I'll respond.

Thanks,
Dan

Link: http://www.fixya.com/support/r5390728-protector_means

Aug 21, 2010 | Technics SA-DX950 Receiver

1 Answer

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

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.

Dan

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?

Thanks,
Dan

Dec 04, 2008 | Technics SA-DX950 Receiver

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

1 Answer

F70 Error on SH-AC300


unit has a blown internal fuse. replace it with exact type of fuse and see what happens. if it blows again, it will need to be returned to a service agent

Sep 25, 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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