Question about Technics SA-DX850 Receiver

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Could anybody tell me what F70 means ?

Hi there ! I'm a customer from Belgium, have been using Technics SA DX850 for like 10 years now and never had any problems till now ... What has been happening in the last two weeks is that the amp suddenly notify a "F70" error on the screen, and all sound stops (except the same "clic" you can year when you turn the amp on).

Then, whatever button I try to turn or push, it only says "Switch Off Power" ...

This F70 error may arrive every two minutes or two hours, unpredictable. I've been checking the air supply, first thought there would not be enough ventilation due to dust, but it all seems ok ...

Could you please help me ? ' can't find this particlualr error reported on the web ... If so, many thanks !!!


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Re: Could anybody tell me what F70 means ?

You must have air flow through this unit!...accordianman

Posted on Jan 14, 2008

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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.

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