Question about Sansui Audio & Video Receivers

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Sansui RZ 9400 AV

Speaker chanel for the two main speakers switches off after a few minutes of playing, as if it is overheating. I have sent it in to a technician but he has no schematics for this model, can you suggest a solution and where to get the schematics.
Regards Nick

Posted by on

6 Suggested Answers

robotek
  • 1512 Answers

SOURCE: Sansui RZ 8300 AV Receiver

Hi curtmalm

First, do a rest on the unit by disconnecting from the wall overnight. Then fire it up again to see if it recovers. Let me know here how you go.

regards
Graeme

Posted on Apr 14, 2008

  • 1 Answer

SOURCE: Sansui RZ 1500 II-Manual

i have the same problem but my receiver doesn't change sources and its blocked on the last station llistened. the problem appeared when i washed the face of the receiver with a special spray. i think that i have done something very wrong like a short cut in the command processor. any help, please?

Posted on Nov 08, 2008

  • 1 Answer

SOURCE: Sansui

I need a card with SMD ICs located on the circuit board of my sansui RZ6800 AV Reciever.(its a digital card with function IC and many more SMD components)

Posted on Apr 30, 2010

dunnbiker
  • 8546 Answers

SOURCE: i have a sansui stereo

Remove the fuse cover with a flat screwdriver, then pull the surrounding circular black plastic piec straight out and reorient it to show the desired voltage, then plug it in, insert the fuse and cap.

Posted on Jan 18, 2011

dunnbiker
  • 8546 Answers

SOURCE: When operating my sansui rz

Generally speaking, an amp attempts to protect itself from heat, shorts, overloads and operator exuberance by refusing to turn on or stay on.

Overloads can be from excessive periods of high output or marginally low impedance loading by the speakers; 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 and competent hands-on tech.

Check for loose speaker connections at the speaker as a possible root cause for intermittent shutdown.

Posted on Jun 08, 2011

dunnbiker
  • 8546 Answers

SOURCE: How do I connect Subwoofer

You could refer to the instructions presumably available for the unnamed sub. THAT would determine the methods it can use.

Posted on Aug 17, 2011

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Overloads can be from excessive periods of high output or marginally low impedance loading by the speakers; 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 and competent hands-on tech.

Check for loose speaker connections at the speaker as a possible root cause for intermittent shutdown.

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