Sansui AU-317 restoration project - 56k warning

Nordic · 3rd January 2008, 08:38 PM

I am going to try and document the refurbishing of this wonderfull piece of amp. This is still a masterpiece from when Sansui was Sansui!!! Produced between about 1973 and 1975 (my birth year)

First error was resolved by finding blown fuse... but I believe after all these years all fuses are due for replacement.

Most of the fuses have rateings of xA at 125V, fuses available to me are normaly 250V, do I just divide the current of the 125V units by two if I want to use 250V fuses or would I be better off ordering some 125V ones?

What is the verdict on those large Elna caps (30+ years old), stay or go?

I think they samller elco's are probably due for a replacement.

It was quite a job getting the crust of thick old dust out of there and I will go get some compressed air when I can drive again, to do a better job.

P.S. I would love the service manual for this model.. I have most of the manuals for the models on either side, but they do differ more than you'd think.

Now for some pictures

Nordic · 3rd January 2008, 08:51 PM

Page one

zeonrider · 3rd January 2008, 08:51 PM

EEEEE! good old amps.

Send me your adress, i'll send you one mising AU-217.

It is joke!

Regards zeoN_Rider

PS. somewhere i, have schematic, I'll send you.

Nordic · 3rd January 2008, 08:52 PM

Page 2

destroyer X · 3rd January 2008, 08:55 PM

Pretty units

And they use to sound fine too.

regards

Carlos

Nordic · 3rd January 2008, 08:57 PM

It can litteraly reproduce signals from 0Hz to 200kHz.
I have heard this unit before... it is proabaly everybit as good as HRII, will run them side by side when I'm done, as a test... I would not be surprised if it wins though... it had an awesome musicality to it.

zeonrider · 3rd January 2008, 09:07 PM

This is for 117, 317 is about 5,5Mb.

Email adress?I, see you are online.

Regards zeoN_Rider

zeonrider · 3rd January 2008, 09:08 PM

Send me your Email adress.

Regards zeoN_Rider

destroyer X · 3rd January 2008, 09:37 PM

the schematic is very good... i think it is a great performer.

regards,

Carlos

zeonrider · 3rd January 2008, 09:44 PM

317 is about 5,5MB, I'll send, but to?

Regards zeoN_Rider

3rd January 2008, 08:38 PM	#1
Nordic diyAudio Member Join Date: Sep 2005	Sansui AU-317 restoration project - 56k warning I am going to try and document the refurbishing of this wonderfull piece of amp. This is still a masterpiece from when Sansui was Sansui!!! Produced between about 1973 and 1975 (my birth year) First error was resolved by finding blown fuse... but I believe after all these years all fuses are due for replacement. Most of the fuses have rateings of xA at 125V, fuses available to me are normaly 250V, do I just divide the current of the 125V units by two if I want to use 250V fuses or would I be better off ordering some 125V ones? What is the verdict on those large Elna caps (30+ years old), stay or go? I think they samller elco's are probably due for a replacement. It was quite a job getting the crust of thick old dust out of there and I will go get some compressed air when I can drive again, to do a better job. P.S. I would love the service manual for this model.. I have most of the manuals for the models on either side, but they do differ more than you'd think. Now for some pictures

3rd January 2008, 08:51 PM	#3
zeonrider diyAudio Member Join Date: Mar 2004 Location: Belgrade RS	Hi! EEEEE! good old amps. Send me your adress, i'll send you one mising AU-217. It is joke! Regards zeoN_Rider PS. somewhere i, have schematic, I'll send you.

3rd January 2008, 08:55 PM	#5
destroyer X diyAudio Member Join Date: Feb 2004 Location: Recife - Brasil Northeast	Beautifull Pretty units And they use to sound fine too. regards Carlos __________________ Try to build an amplifier folks ... it is pure adrenaline!.. when not work first time, then becomes a nice challenge...and we usually overcome the trouble... and we feel very well to be mastering the machine.

3rd January 2008, 09:07 PM	#7
zeonrider diyAudio Member Join Date: Mar 2004 Location: Belgrade RS	They call me fast! This is for 117, 317 is about 5,5Mb. Email adress?I, see you are online. Regards zeoN_Rider

3rd January 2008, 09:08 PM	#8
zeonrider diyAudio Member Join Date: Mar 2004 Location: Belgrade RS	Hi! Send me your Email adress. Regards zeoN_Rider


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3rd January 2008, 08:57 PM	#6
Nordic diyAudio Member Join Date: Sep 2005	It can litteraly reproduce signals from 0Hz to 200kHz. I have heard this unit before... it is proabaly everybit as good as HRII, will run them side by side when I'm done, as a test... I would not be surprised if it wins though... it had an awesome musicality to it.

3rd January 2008, 09:44 PM	#10
zeonrider diyAudio Member Join Date: Mar 2004 Location: Belgrade RS	Mr.X ! 317 is about 5,5MB, I'll send, but to? Regards zeoN_Rider

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