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Sound Tech PL1402, shuts off after couple minutes use

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I have a Pioneer VSX 823 - K, and when I hook up my Klipsch HG-12 300 watt subwoofer to it, the receiver is prone to overheating or just shutting off with too much bass. Is there a fix to this?


This is receiver thermal going in protect issue and has no bearing to your sub, The sub has its own power amp and not supplied by the receiver. Thermal module may be bad. See a tech.

Mar 06, 2014 | Pioneer VSX-823-K

1 Answer

I have onkyo reciever tx-ds898 no sound


Some receivers shut down automatically if a thermal overload is detected or more commonly if speaker impedance is less than specified, i.e, driving a 2 ohm impedance speaker with an output rated for 8 ohms. If you can get the receiver operating long enough, you may see a message indicating why it is shutting down

Oct 03, 2012 | Onkyo TX-SR606 Receiver

1 Answer

My marantz sr7001 has sound but the video wont show on the tv


Video processing section circuit should be troubleshooted. Seek tech support.

Jun 03, 2012 | Marantz SR7001

1 Answer

Pioneer VSX-818V receiver. less than 3 years old. Getting no sound out of speakers all of a sudden. Signal to TV is ok just no sound. What component drives the sound out to the speakers? The sound stopped,...


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 'nekkid'. 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.

Aug 27, 2011 | Pioneer VSX-818V-K Receiver

1 Answer

My STR-DE945 5.1 channel, works "fine" just a small issue that started to bother me... when i start the thing the 5 speakers have sound (also the bass), but after like 5 or 6 minutes, i hear a...


Commonly your problem is a result in bad thermal connectivity on the power transistors.

Each power transistor is coupled to a heat sink with thermal paste / thermal conductor. When they run hot, they **** more power. There is commonly a thermistor which acts as a protection from blowing out the transistors.

There is probably a transistor that is nearing the end of its life. It will work for a while (when you power up the system) but after a couple of minutes, it starts to **** power, heat up, and trigger an thermistor up stream of the transistor, and it shuts the power stage of the amp off.

This is unfortunately a problem for a technician, or you would need to be armed with a schematic to be able to work with this problem effectively.

Mar 17, 2011 | Sony STR-DE945 Receiver

1 Answer

Sound quits after 2-3 minutes


bad regulator ic most likely there are several in the set.. I can walk you through it. need to check some voltages

Jul 10, 2009 | Yamaha RX-V663 Receiver

2 Answers

Receiver overload problem


The overload message is indicating that a problem was found and the system is shutting down the output section to prevent further damage. There are probably poor connections on the main board and failing capacitors in the front end. Expect a parts vcost in the $10 range. Add in the local labor rate for the total repair bill.
Dan

May 23, 2008 | Technics SA-DX930 Receiver

1 Answer

Powering off by it's self...


It sounds like an overload/no load problem.
Are ALL the speakers connected? to the right places?
If the amplifier section doesnt "See" what it needs, it will shut off.
If all connections are good and it shuts off still take it to a tech who knows stereo. Doesnt have to be an authorized HK guy either

Feb 28, 2008 | Harman Kardon AVR 630 Receiver

1 Answer

Onkyo receiver


It sure dosent sound good!! The clicking sound you here are the protection relays to assist in protecting your speakers from blowing out. Your output devices are shorted it sounds like. Do not ever ever attemp to jump out those relays as it will burn out your speakers and possibly burn down your house!. Theres alot of current inthese amps for high power so if your not a tech and you think its worth it take the unit in to be looked at as there are no serviceable user parts inside these units . Sorry to have to tell ya this.. Good Luck

Jun 05, 2006 | Onkyo TX-DS575 Receiver

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