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I have a sansui au-717 ampand the left speaker side dosen't work for either A or B speakers. already swapped speakers so I know it's not a speaker problem..........

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The amp will most likely need to be replaced but the pre amp will need to be checked first
can you perform these tests ?

electech

Posted on Nov 26, 2008

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Onkyo HT-R510 left side speaker garbled


Out put transister could be fried ,Or the speaker is blowin,

Nov 29, 2012 | Onkyo Ht-r510 600w 6.1 Dts Home Theatre...

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Off of the top of your head could you tell me what my problem with my sansui AU-717 amps problem could possibly be? When I am playing a cd if the volume is even barely loud the sound will go out then I...


It sounds like one of the following:
> You have an impedance miss-match between your speakers and the amp (speakers have am Ohm rating lower than the amp can handle),
> You have the switch set to both A&B speakers turned on, but have speakers connected to either the A or B set, but not both, or
> You have both A & B (4 speakers) connected, and one or both have an Ohm rating lower than 8 (if two sets are connected, they must be 8 or higher).

My best guess off the top of my head.

Apr 07, 2011 | Sansui Audio Players & Recorders

1 Answer

I can only get the right half of the speakers to work, how do I get the rest?


switch the speaker connectors and see if the ones that work on the right work on the left. if they do then your amp is ok and the problem is either the wiring for the right side or the right side speakers. If the speakers don't work when you try this swap, then you have a bad channel onn your amp and will need a bench mechanic to fix it, (if you could find one). also make sure that you have a signal to both the right and the left, this can be tested by again doing a swap, take the left feed and put it in the side that is now working and if you hear sound then the inpurs are ok

Mar 17, 2011 | Denon AVR-1100 Receiver

1 Answer

I have a Sansui 717 Receiver/Amplifier. Everytime I turn on the power it will warm up for a few seconds...the blinking will stop and ready. I try to turn the volume up and it cuts out immediately. Can this...


Generally speaking, an amp protects itself from heat, shorts and overloads.


Overloads can be from excessive periods of high output and shorts would be wiring issues or a speaker blowing up.


You should be able to feel if it's hot. WHY is it overheating? Make sure it has sufficient ventilation on all sides and that vent holes are not blocked by dust balls. Ensure the fan (if equipped) is running as designed (some only operate on demand). Clean dust and debris from it.


If the amp comes back on after cooling, you're lucky. They only have so many self-protection cycles in their lives so continuously resetting or cycling their power without addressing the cause can do more harm than good.


If it protects immediately on a cool power up you should disconnect the speaker connections and try it 'naked'. If it comes up then diagnose which lead(s) are shorted. If it does not come up the problem is internal and should be left to an experienced hands-on tech.

Jan 23, 2011 | Sansui Audio Players & Recorders

1 Answer

MY Teac AG-370 reciever only plays one speaker , I know the speakers are good ,I checked them , what other things can I check?


If you've already swapped them left to right to prove the speaker works bt the channel doesn't then you know the problem is in the electronics. Is it one or more sources? Turn the receiver off and manually operate all the switches and knobs throughtout their ranges (particularly the Tape controls) and see if that helps. No? Take it to someone to look at it.

Dec 28, 2010 | Teac AG-370 Receiver

1 Answer

I have an old Sansui 400 receiver. I get no sound from the left channel--both A and B speaker options. The speaker and wires are OK, because they work when hooked to the right channel contacts.


The problem seems to be the left transistor part of the unit. Try this:change A versus B speakers, asuming speaker A was working properly. If still speaker A, now connected to left output does not work, you will probably have transistor malfunction on the left channel of the receiver. Any electronic store will substitute the left transistors.
Good Luck.
Flavio/BRAZIL

Jul 23, 2010 | Sansui Audio Players & Recorders

1 Answer

Right rear speaker has no audio


Swap the speaker wire from left rear to right rear if the speaker was from RR now work on LR side this prove the speaker OK then you problem in the receiver
If you swap the RR speaker to LR side and still not work then you
have that RR speaker open
Make sure you hook up speakers cable properly and not short from both terminal speakers and receiver the RED and Black poles
Let me know how you go

Nov 28, 2008 | Yamaha HTR-6130 Receiver

1 Answer

Sansui 3200Z stereo receiver -- Both A and B no longer drive speakers. Progressive failure: first Right went out, now left.


now you have to try and isolate frist your problem .is it your speakers? your cabling or your receiver? check all your cables for any loose connections. check your speakers for possible damage, you can try using another set of speakers to your receiver and see if it does the same thjing and wont work. or try also your speakers in another set of receiver.

Jun 19, 2008 | Sansui Audio Players & Recorders

1 Answer

I own a classic Sansui intergrated amplifier (AU-717). It has a short in one channel. At low volume, the sound shorts out. I've had this unit for about 20 years now. Otherwise, it's a great product!


Hi mellemcee


Cool amp mate, and becoming collectable now to. Sansui amps from the era where the best in the world of HiFi. iT may have lost bias control to the offending channel, it may have dirty source switches, tape monitor switch, or even speaker switching. The speaker protection relay may also have a dirty contact, will usually burst back into life with a quick rotation of the vol control. Can you pin the problem down a little more with the info i have given you, try all the controls to see if it impacts on operations, you will need to fix those problems first. Low bias would make that channel sound distorted at low levels also. Is this what is happening to you??

regards
Graeme

Apr 18, 2008 | Audio Players & Recorders

1 Answer

I have a Sansui AU-717 Integrated Amplifier that needs some work done on it. Is there a Sansui service center in Washington State that can work on this?


This company is not like they used to be. You can try the links below to see if you can find authorized service for your set.

Sansui:
http://www.sansui-india.com/

http://www.classicsansui.net/


Historic information about Sansui:
http://en.wikipedia.org/wiki/Sansui


I would personaly suggest to find a service center or a very good local tech who can do audio amplifier and reciever service.


Jerry G.

Apr 13, 2008 | Audio Players & Recorders

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