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Au 217. Help!

Tyguy1

Tyguy1

New Member
I recently bought an au 217. The knobs are a little scratchy, I’m currently waiting on some deoxit, but I’m pretty sure I can take care of that. What I don’t know is why the right speaker will cut out after a bit. I’ve switched to my old receiver to make sure it isn’t the speakers and it’s not.
I’ve popped the sansui open and it was incredibly dusty. Probably never had any work done to it. What can I do to get this right?
 
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Your speaker problem is typical for a dirty sansui amp: First you have to perform a good cleaning of all pots and toggle switches. This will probably also cure the intermitting/cutting out of one speaker channel. If not, then it is time to investigate further.

The speaker problem you discribe is often caused by a dirty/oxidised selector switch and/or tape-monitor toggle switch.
But best to clean all pots and switches.

Please note that several cleaning sessions can be needed per pot/switch to get them fully operational again.
See AK for more information on the cleaning.

FYI: Personally I spray with deoxit (or simular), blow out deoxit and dirt with airspray (important to get the dirt out), repeat the process 1-2 times en as last action put some fader lube (of very small dosis contact cleaner if no fader lube available) to finish the proces. Work the pot/switch 5-10 times and the job is done. 95% of all problems with intermitting sound will be solved. Done this several times on a AU-217 and allways ended with a great amp.

Have fun
-John-
 
Lovely amp replace all the fuse resistors and 2sa726 transistors as preventative maintenance and may fix your issue above as well if it’s not dirty switches goodluck
 
It might eventually be helpful to know which model you have (there's an AU-217II as well). IIRC there are six fuse resistors which are easily accessible and should all be replaced to assure reliable operation, even if they're not the cause of the channel cutting out. A very easy thing to try is tapping on the speaker protect relay to see if it affects the channel cutting out.
 
Jefft91 said:
It might eventually be helpful to know which model you have (there's an AU-217II as well). IIRC there are six fuse resistors which are easily accessible and should all be replaced to assure reliable operation, even if they're not the cause of the channel cutting out. A very easy thing to try is tapping on the speaker protect relay to see if it affects the channel cutting out.
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It’s just the au 217, not the 217ll. I’ve done a few rounds of deoxit and it has seemed to take care of the problem for now. Hopefully that will buy me some time before I have to replace resistors. It might be easy but seems daunting to a newbie like me.
 
What are your impressions of this amp now that you have it working? What speakers are you driving with it?
 
Jefft91 said:
What are your impressions of this amp now that you have it working? What speakers are you driving with it?
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oh, man. I love it. I’m coming from a little 8 watt Nikko receiver and compared to that this thing is so much more full and bassy. Everything comes through more clearly. I’m driving some klipsch rb 35s. The combo can really fill my little house very easily.
 
Congrats on a great amp. I own one, too. If you decide to go for some repair and restoration work there is plenty of support here.
 
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