Question about Sony STR-K840P

Open Question

My SONY STR/K840P receiver keeps showing a red light saying Speakers Off but I cannot find any button on the receiver itself to turn it off. It was working just the other day.... The remote control does not work and I do not have a manual. Anyone have any suggestions? Help I miss my music.

Posted by Anonymous on

Ad

6 Suggested Answers

6ya6ya
  • 2 Answers

SOURCE: I have freestanding Series 8 dishwasher. Lately during the filling cycle water hammer is occurring. How can this be resolved

Hi,
a 6ya expert can help you resolve that issue over the phone in a minute or two.
best thing about this new service is that you are never placed on hold and get to talk to real repairmen in the US.
the service is completely free and covers almost anything you can think of (from cars to computers, handyman, and even drones).
click here to download the app (for users in the US for now) and get all the help you need.
goodluck!

Posted on Jan 02, 2017

Ad

SOURCE: rear speakers not working on STR-K740P

The only way your surround sound will work is if you have either the coaxial or fiber optic digital hookups attached to a PS3/Blueray/DVD/Cable box/Satellite box that have digital sound outputs. If you are just using the 1970's version of the red/white audio cables that is stero only.

Posted on Apr 11, 2008

Ad
ginko
  • 19396 Answers

SOURCE: Sony STR-D665

Protet mode is a special diagnostic mode that starts when a fault is detected.

When in protection mode the unit is prevented from starting by protection circuit, so to prevent further damage.

Check the speakers and speakers wiring, a contact in speaker wires, or faulty speakers can send the unit in protection.

Try unplugging power cable for one hour or so. then connect cable back and see if you get rid of protect state. Sometimes accumulation of electrostatic charges inside circuit capacitors can kick in protect mode. In that case unplugging the unit from main for some times can get rid of electrostatic charges, and reset circuits by draining power completely.
If that was the problem, you will not get Protect when plugging back power cable.

If you do all the above and still get Protect, then there is a real fault.

In that case the unit may be disassembled and tested to find the fault.

If that is the case I suggest contacting the manufacturer at the number listed on the owners manual, or asking a quote on repair to a local technician.

Posted on May 29, 2009

VOTIT
  • 2071 Answers

SOURCE: audio protect keeps turning off my receiver (sony STR-DE597)

That is the common symptom of the defected STK-IC in power amp.section that busted already or just a loose connection.First try to resolder the pins of STK-IC and also all component parts joint in power amplifier section if its works! if not that is the time you replace it, so it works normal again.

Hope it may helps you...

Posted on Jun 08, 2009

  • 4234 Answers

SOURCE: STR-DH700 won't power up unless I unplug-plug it.

This is a logic problem with the internal microprocessor. A quick experiment: Turn the unit on for about 2 minutes and shut it down. Doe sit power uip in this case? If so, I'd suspect that the heat generated during normal operation is creating an internal problem thaty is preventing the micro from recognizing the "off" condition. The power data line is hung and is not being recognizwed by the micro so any attempt to turn the unit on will fail. The unplug/re-plug essentially clears or resets the unit.

If the unit is new, return it for warranty repair. It will be important to describe when the unit fails however. Try to see how long it must remain on for the problem to occur.

Update this with your results if the unit is not under warranty and we'll try to narrow it down.

Thanks,
Dan

Posted on Nov 05, 2009

  • 99 Answers

SOURCE: I have Sony STR DE845

If you consult the card that came with the remote, you will find several codes for "Sony". You will need to experiment with each code until you find one that will power the receiver on and off. Then you will have control of the receiver. If you don't have the card, then go to the web site and download a copy in PDF format from there. I have a lot of Sony stuff, and I have found that the codes varry according to the year the equipment was made and its function.

Posted on Aug 31, 2010

Add Your Answer

Uploading: 0%

my-video-file.mp4

Complete. Click "Add" to insert your video. Add

×

Loading...
Loading...

Related Questions:

1 Answer

Mum pressed some buttons on amp now the amp wont respond to the original remote or the universal remote. buttons wont work, batteries good and lights up. is there a button that blocks ir signal?


Looking at the user guide it appears that the amp has a standby mode.

See not below on turning standby on. Question can you see the standby light flashing.

I would also suggest using function on the amp to remove any possible issues with the remote.

One would expect the system to return to normal operation by pressing the power button again. If not what do you see on the display.

Note:
Press 1 to turn on the receiver.You can also turn on the receiver using 1 on the remote control. When you turn off the receiver, press 1 again. "STANDBY" flashes on the display panel. Do not disconnect the AC power cord (mains lead) while "STANDBY" is flashing. This may cause a malfunction.

Jul 08, 2017 | Sony Audio Players & Recorders

2 Answers

Why is center channel dead?


Sony STR-K840P Sound center speaker - Questions - Fixya

www.fixya.com > ... > Sony > Sony STR-K840P
... sound from center channel during viewing, or during speaker level test- all other speakers emit tone, but center is dead. I have optical digital cable and hdmi ...

Sony STR-K840P Sound center channel - Questions - Fixya

www.fixya.com > ... > Sony > Sony STR-K840P
... sound from center channel during viewing, or during speaker level test- all other speakers emit tone, but center is dead. I have optical digital cable and hdmi ...

Sony STR-DB940 pulled back from the brink - Page 2 - Badcaps ...

www.badcaps.net > ... > Audio Equipment Discussion

Jan 01, 2016 | Sony STR-K840P

1 Answer

Sony rm-pp411 av system remote not connecting to str-k840p amplifier


The problem might not be your remote. It could be your IR sensor in the reciever.

Apr 10, 2012 | Audio Players & Recorders

1 Answer

We turn on our sony STR/K840P receiver and it wont work the only thing it is doing is flashing protect wires are ok is it a parent lock if so how do we turn it off


No, it's in trouble.


Generally speaking, an amp protects 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. Eure 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.

Feb 28, 2011 | Sony STR-K840P

1 Answer

Hi i am a new member and i have a problem with my str-k840p it started to have a protect mode flashing and I can't hear the at all the tv or speakers. What could i do i check all my connection and they...


Hi,
Protect display indicates that receiver is in protection mode due to some serious problem in output amplifier section and most probably any output channel output chips got shorted out.
Protection mode turns On to avoid any further damage in receiver. If your Sony STR-K840P is under warranty then call numbers written on warranty documents to ask warranty cover and if unit is out of warranty then either Sony service center or local repair shop will help you to get it fixed, it is not user level repair.
Hope these info will help you.
Let me know if you have additional question.
Thanks.

Nov 29, 2010 | Sony Audio Players & Recorders

1 Answer

Sony Model: STR-DG800


You've got a short in one of your speaker wires either at the receiver (most common) or at the speaker itself. you should only have a 1/2" of each side of the speaker wire stripped to put on each terminal, and when you strip them, twist them so there are no frays in the strands that will touch the other terminal. The receiver is protecting itself from harm. Turn it off then disconnect all speaker wires, examine each wire carefully before reinstalling, then turn the receiver back on. If it still says protection, look at each speaker and reconnect your wires the same way. If you still have a problem, disconnect the wires again at the receiver and turn on, at this point, if it say's protection, it needs to be serviced. Hope this helps

Jun 23, 2009 | Sony STR-DG800 Receiver

1 Answer

MySony str-da5000es is showing error code 11 and shut off by itself after few seconds.check and disconnect all speakers, unplugged power from wall and still showing error 11. am missing something in here...


error code 11 (protector) - According to the manual, 11/PROTECTOR means, "Irregular current is output from the speakers. Turn of the receiver, check the speaker connection and turn on the power again." Most likely, a strand of speaker wire is shorted to the chassis at one of the speaker terminals.
Hope this helps !

Jun 17, 2009 | Sony STR-DA5000ES Receiver

1 Answer

Surround sound won't work


Try Googling (sony)(STR-K840P)(manual) without parens.

May 25, 2017 | Audio Players & Recorders

1 Answer

Rear speakers not working on STR-K740P


The only way your surround sound will work is if you have either the coaxial or fiber optic digital hookups attached to a PS3/Blueray/DVD/Cable box/Satellite box that have digital sound outputs. If you are just using the 1970's version of the red/white audio cables that is stero only.

Mar 02, 2008 | Sony STR-DE625

Not finding what you are looking for?
Sony STR-K840P Logo

Related Topics:

43 people viewed this question

Ask a Question

Usually answered in minutes!

Top Sony Audio Players & Recorders Experts

kakima

Level 3 Expert

102366 Answers

 Grubhead
Grubhead

Level 3 Expert

5113 Answers

The Knight
The Knight

Level 3 Expert

74185 Answers

Are you a Sony Audio Player and Recorder Expert? Answer questions, earn points and help others

Answer questions

Manuals & User Guides

Loading...