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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 ?


Posted on Nov 26, 2008


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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 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

I have a 1975 Sansui Integrated Stereo Amplifier and Left Channel on System A & B are faint and Tinny as if Left Channel in System went out. I swapped speakers from right to left channel and same...

It's likely there is a fault on the power amp. This is located on the heatsink. A visual check inside the unit might be what you need. Look out for blown parts, bulging capacitors or burnt components. Remember the two channels are generally separate and identical. So identify the two channels. Work back from the speaker sockets if you can't tell. Then compare the left channel parts with the right side components. If it looks odd on the left compared to the right you have found the problem.

Feb 14, 2018 | Sansui RZ-5300AV Receiver

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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.

Jul 23, 2010 | Sansui Audio Players & Recorders

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Sansui Home Theatre - rear speakers don't work

Select the Audio mode in Player remote control. On selecting the Audio mode 5.1, u will get all speakers to work. Cheers..

Sep 03, 2009 | Sansui VRDVD4000 DVD Player/VCR

1 Answer

No sound out of left side speakers, front and back.

easiest way to see if the left outputs have gone is to swap the right and left speakers over. if the left works out of the right channels you know if the set has had it.hope this helps

Apr 22, 2009 | 2004 Nissan Sentra

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

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??


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.


Historic information about 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

2 Answers

My right speaker does not work

My left speaker didn't work, I described how I fixed it here:

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