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Shutting down I just bought this receiver today and I set up my Infinity tss-750 speaker set and connected it to my dvd player, and when i plugged it in and turned it on it clicked on and then immediately clicked off. It was as if there was a power overload, but it was the first time I have ever turned it on. I then umplugged the power cord, and all the speakers and replugged it in, and it still did the same thing. I would like to get it working asap.. Thanks

Posted by Bryan Yuhas on

  • 2 more comments 
  • Gary Davis Dec 02, 2007

    I have had this receiver for 6 months with no problems. Recently I have been experiencing this same problem of shutting down as soon as you turn it on. After turning it back on several times it will stay on. However, the problem seem to be getting worse. I have disconnected all the speakers but the problem still occurs. Help!!!!!

  • iemtall Sep 04, 2008

    I turn it on and it goes to standby. The manual said disconnect all speakers, power off for at least an hour, then turn volume up to full, power the unit back on and see it is goes to standby or stays on. It still goes to standby. The manual says the amp protection circuit has been activated. Any idea how else this can be reset? Appreciate any help. Thanx!

  • Anonymous Oct 23, 2008

    Same problem here.. I had the amplifier for quite some time, then all of a sudden it started with the power on and imeddiately power off... I've still been using the amplifier like this for over 10 months now ... I simply have to turn on the unit repeatly for 20-30 times and then it stays on and plays with no problems...

    I have tried fixing it on my own, I cannot seem to figure it out... It has nothing to do with my speaker connects, I disassembled the entire connector from inside ... 

  • mmorg17 Dec 22, 2008

    My problem is similar to the others i heard on here, mine seems to be related to volume.



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Try first to disconnect all your speakers and see if the sdame thing happens. if it dosent, turn off and start to connect up one speaker at a time. BUT always turn off unit while connecting speakers. Keep connecting till you get to the one that makes the system shut down. Then check the wires for splices cuts or shorts and make sure the ends where they connect to the speaker and reciver isent shorted. if it doesnt work with all the speakers disconnected theres a short in the unit and if its new take it back. Good Luck

Posted on Aug 17, 2006


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Infinity tss 750 sub-woofer when powered on immediately pulls speaker in and has loud humming. no inputs hooked up, only plugged in to ac power source.

The loud humming is the sound of AC mains - clearly your amplifier is receiving an input from somewhere and possibly into the front end.

The hum could be induced by radiated energy from nearby unshielded equipment, it could be the result of an accidental hum-loop or could be because the amplifier power supply has a fault.

It is usual practice with amplifier construction to ensure unused inputs are shorted to ground by switching or by additional contacts and wiring at the input sockets. High gain high impedance inputs can cause a great deal of unwanted noise if they are not shorted.

I suggest you read the instruction manual and perhaps Google a few hints and tips about amplifiers and stuff.

Interested in your Infinity sub repair; could I send you some images to verify infinity TSS-1100 has no light, seems blown to me, not sure if it has the screw you mentioned

Hi my name is MIchael and I repair the following amps JBL PB10, PB12, PS10, PS12, TSS-1100,TSS-1200,VENUE SUB12, E250P. If it has the screw near the on/off switch. If your amp is blowing the fuse, has bad sound, no sound, doesn't power up or if the output is low or muffled. We can fix it - please check ebay and search WE REPAIR JBL PB10, PB12, PS10, PS12, TSS-1100,TSS-1200,VENUE SUB12, E250P - you will find us ... Edwards Electronics ....

When playing DVD, it's sometimes display 'PROTECT' and stop playing.

Check if you receive the error when playing any DVD in particular.

What happens when you take out the DVD and try playing it again? Does it play

This protector error denotes several possible problems. Heat, volume level and incorrect DVD settings may be the cause of the problem. The following steps will help you correct your problem and rid your amp of its "Protector" error.

  • Examine your volume setting to be certain that your volume knob is not at maximum. Having your volume cranked too high can cause the capacitors to overheat, shutting down the receiver.
  • Unplug your receiver and disconnect your speakers from the terminals on the back. This will allow you to determine if the error is internal. Plug your receiver back in and look for the same error message. If you continue to get the protector error without having your speakers connected, you may have an internal electrical problem. In this case, contact Sony about finding a repair center.
  • Reconnect your speakers one at a time. The order of connection doesn't matter. When reconnecting, be sure that you do not have your positive and negative speaker wires crossed in any way. After each connection, test your amp by running it with a source. Give each speaker a few minutes of power before connecting the next one. This will help you isolate which speaker terminal is causing the error. When the protector error returns, take note of which speaker connection caused it. Check this speaker wire for shorts or torn shielding.
  • Examine your ohm rating of your speakers if you have no shorts or wiring issues. Sony receivers are not compatible with speakers lower than 4 ohms. Connecting a lower ohm-rated speaker will cause an error.
  • Turn off the surround sound option if you have both your A and B position speakers in use.
  • Keep your receiver well ventilated. Overheating due to poor ventilation can also cause Protector errors.
  • Examine the sampling frequency of your connected DVD player. If the error only occurs when you watch a DVD, the sampling frequency of the DVD player may be set too high. Check the sampling rating in your receiver's manual and in the DVD player

My Infinity TSS-1100 subwoofer emits humming noise when I connect an input cable. It even hums when the cable is not connected to my receiver. It is silent when I remove input cable. I opened the amp and...

Subwoofers are basically a mono amp. If you have replaced most of the big caps on it then I would go for the main amp device, the bit that does most of the work.

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My subwoofer is making a regular thumping noise every 3 or 4 seconds. I had it unplugged for along time and just hooked it back up. It makes the sound regardless of where its plugged in and even if it's...

if you can replace the subwoofer, do it! Unless, your whole sound system is based on it. problem inside of subwoofer's internal amp. It's an active subwoofer, must be replaced with same kind. otherwise, take unit to local repair shop for diagnostics and repair. it might be some capacitors gone bad, may be IC chip is at fault. anyway, not do it yourself, unless you're an electronics expert.
good luck,
Alex's Tv Service,

Infinity tss-1100 sub problem

hey buddy, I have the same system, and although I haven't experienced it on this one, I had the Harman Kardon equivalent to the TSS-750, and the sub did this same thing. It was a loose RCA connection, and, as I was well outside of warranty, I took the amp out of the back and just re-soldered the connection myself. It now functions flawlessly for my bedroom setup. I hope you get it all worked out on your system! I can't imagine using this awesome system without its deep notes!


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