Question about Technics SA-DX950 Receiver

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F70 Error showing up on my SA DX750 reciever.

Hi I know now that F70 is meant to mean a blown internal fuse, which by the way I found and changed, however I am still recieving the same message, how many fuses are they? I have not connected back up the speakers as yet as I do know my puppy enjoyed playing with one of them and ate out the cone:-). This speaker issue happened months ago but the F70 error is recent. Any suggestions?

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  • Slavisha May 15, 2009

    I HAVE THE SOME PROBLEM WHIT MY RECEIVER SA-DX 750

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5 Suggested Answers

SOURCE: What is F70???

F70 means Blown Internal Fuse change the internal fuse and that should solve the problem if not you may have to change the output

Posted on Jun 13, 2008

  • 336 Answers

SOURCE: F70 on my reciever

Most likley it is in need of repair. I suspect the output IC. Check for bad solder connections on the IC and voltage regulators.
Remove the speakers and see if it still happens (it probably will).

Posted on Feb 13, 2009

  • 118 Answers

SOURCE: Technics SA-EX600 reciever shuts off and goes into

repairable, but not worth it

Posted on Nov 03, 2009

Grubhead
  • 4861 Answers

SOURCE: on switching my technics sa-dx750 it says switching off overload

The question is what is causing the overload? The power supply or the output devices on the heat sink?
If you have accidently shorted a speaker wire, then the answer will be output devices, otherwise it could be anything in the power section. You may find a burnt or damged device with either of the causes.

Posted on Mar 09, 2010

  • 1 Answer

SOURCE: SA-DX750 error F70

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

Posted on Jan 03, 2011

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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

2 Answers

Its showing F70 error on display. Only workd on DVD mode, when i turn it on any other mode it just shows F70, switch power off. All fuses are ok, no any visibly damaged components


The fuse is a part of the problem it is for safety measures
the problem is in between the power supply regulators, capacitors and power amplifier circuit board.
usually a regulator or an output transistor can cause this error.
hope this helps.


its-showing-f70-error-display-only-hsr1hry0r110iqa53bzttpz3-5-0.jpg

Aug 08, 2014 | Panasonic SA-HE70 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

2 Answers

F70 displays after about 5 min of use.


According to Technics reference manual, turn the unit off, unplug for a few, plug in, turn unit on. Consult your "dealer"(authorized repair person, i guess) if light remains on. But doesn't say what f70 means, or associated with.
Unplug and open up the unit, and check the internal fuses on the circuit board. Also check for proper speaker wire hook up. Re-seat the connections. Visibly check the speaker wire runs for shorts, cracked casing, cat/dog chewing. etc.

Hope this helps.

Apr 28, 2010 | Technics SA-DX750 Receiver

2 Answers

F70


The system has detected a fault in the output section. How much are you asking of the system? Greater than 50%? That will push most systems to their limit in a short period of time...accordianman

Jan 14, 2008 | Technics SA-DX850 Receiver

1 Answer

What is F70???


F70 means Blown Internal Fuse change the internal fuse and that should solve the problem if not you may have to change the output

Oct 30, 2007 | Technics SA-DX750 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

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