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Hello,\r\n I have a Sansui RZ-3700AV which was operating fine until one day it simply stopped outputing to the speakers. I suspect there was short circuit one one of the speakers outputs when the cleaner accidently disconnected the cable which may have short-circuited the output of the receiver. Front panel readings are fine. Swiched A and B speaker sets to make sure this is not the reason for the silence on outputs. Also tried connecting speakrs to center and rare speakers. Your assistance would be appreciated. I have electronics background. Thanks

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6 Suggested Answers

6ya6ya
  • 2 Answers

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Posted on Jan 02, 2017

techman
  • 3130 Answers

SOURCE: hooking up 2 speakers to 1 speakon output

Power Output (1 kHz*) Stereo Bridge-Mono 8 Ohm 4 Ohm 8 Ohm XLS 802 500W 800W 1600W XLS 602 380W 600W 1200W XLS 402 300W 450W 900W XLS 202 200W 300W 600W *1 kHz Power: refers to maximum average power in watts at 1 kHz with 0.5% THD. It depends on the impedence of the speakers. Carfull as you could burn up this amp if you exceed the resistance rating on it. Go here on all of the specs of this model of crown amps. http://www.crownaudio.com/amp_htm/xlsspec.htm Good Luck

Posted on Mar 27, 2007

SparkGap
  • 363 Answers

SOURCE: Hooking up speakers to amp

YES ! This is usually ok, the speaker cabinet should contain a high pass filter or crossover on the tweeter to decouple it from the low frequency signals. My Linn Index speakers are wired like this.

Posted on Sep 22, 2007

simplemitch
  • 752 Answers

SOURCE: PIONEER DC-Z92 CASSETTE DECK AMPLIFIER

Is this one of the units that has a ribbon cable ( looks alot like an IDE hard drive cable) that connects all the components together? It also has a squre plastic fan that protrudes slightly from the rear (by about a 16th of an inch)? If so, it's the power module which consists of 2 boards (along the fan housing). You can probably find replacements for about $70, but I wouldn't bother. They quit making new replacements several years ago and any board you get now is just a pull from old stck units.... and they fail about 2 minutes after you put them in. Pioneer knows this but still sells the defective parts.

Posted on Oct 13, 2007

  • 54 Answers

SOURCE: Power LED blinking - no sound

Check windings on input and output of main power transformer.
Make shure no open windings.
Good Luck
Big Red

Posted on Nov 03, 2007

SOURCE: No Audio OutPut When Cooling Fan Starts

I have the same rz 6880 av 5.1! bt im not facing that problem. Iv connected my Bose III series speakers to it...and it plays well. Maybe you need to check your system with a qualified personnel.

Posted on Feb 17, 2008

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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.

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Sounds like a temperature issue.

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.

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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.

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No Audio OutPut When Cooling Fan Starts


I have the same rz 6880 av 5.1! bt im not facing that problem. Iv connected my Bose III series speakers to it...and it plays well. Maybe you need to check your system with a qualified personnel.

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