Question about Sony TA-N1 2-Channel Amplifier

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Sony str-k1600 digital amplifier sound doesnt come out no indication of any error and protect voltages are ok every where but no sound rely does not on when power turn on pls help thanks a lot

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6 Suggested Answers

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Posted on Jan 02, 2017

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SOURCE: sony TV kv29LS60e - over voltage protection

it is power supply problem. your oscillator for switching ckt or switching output failure. if you are not tech person call him for help. it is not a major problem good luck.

Posted on Oct 08, 2007

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SOURCE: SONY STR-DE675 RECEIVER

Protect mean that the speaker wires are touching eachother or that one of your speakers are blown and it is shorting out the receiver.

Posted on Dec 24, 2007

  • 1 Answer

SOURCE: Sony STR DB-930 Receiver jumping into protector mode

I went through the amp/receiver and used small star washers on all the grounding screws I could find including the one securing the transformer, cleaned dust off all circuit boards, checked output transistors and fuses, all OK.

Re Assembled unit and it worked OK.

I will buy a fan and fan it to avoid sourcing heatsinks for the previusly suggested IC's.

Thanks for the technical help, sure solved my problem.

Regards

Darryl.

Posted on Mar 13, 2008

  • 3 Answers

SOURCE: code for sony receiver model str d565 protect mode

If you need support you can log into:
http://esupport.sony.com/US/perl/support-contacts.pl?mdl=STRDG510

for free tech support on sony chat line

Posted on Jun 02, 2008

ginko
  • 19396 Answers

SOURCE: Sony STR-DE 605 FLASHES PROTECTION ON READOUT

To all users with this problem:

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

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1 Answer

There's no sound with my STR-V555ES 5.1 channels and there is protector in display


It is possible that the amplifier had encountered a fault with a higher current drain which had triggered it to a protection fault condition. The fault can be with your output drivers. Please check for short on the outputs fitted for both the channels. Use a meter after disconnecting to check for short in the drivers. Disconnect the positive and negative voltages to the output and see if the protect changes. Even a fault in the preamp stages that drives in high current into the output can shut the Amplifier. Sometimes this can be a noise which can be a HUM or HISS before the protect works. Faulty capacitors in these circuits also can cause similar issues and needs close observation.You need to confirm and replace the specific stages or outputs. If not there can be issues in the mother board. Maybe the protect circuit by itself is shutting off due to a faulty bias or there is a leak in any voltage/current sensing circuit. Also disconnect the speakers and test, if the amplifier comes out of the protect mode then check for short on the speakers.

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Hello my sony audio/video control center #STR DE335 is in PROTECT MODE.. and i cant listen to it..can u please tell me whats wrong?


PROTECT display indicates that receiver got serious problem in output amplifier section and protection mode is activated to avoid further damage.
Output amplifier section should be tested by qualified technician to find out and replace defective part(s) to solve this issue. Local repair shop will do this job as it is not user level repair.
Thanks.

Apr 29, 2011 | Sony STR-DE335 Receiver

2 Answers

My sony STR-DE345 amp says "protect" and there is


The manual says it thinks there is a short circuit on the amplifier output side. If it still says Protect after disconnncting all the speakers wires there is an internal problem. Take it to a hands-on tech.

If the problem disappears, you had a short. Attach speakers one at a time to isolate the cause.

http://www.retrevo.com/support/Sony-STR-DE345-Receivers-manual/id/387bh943/t/2/

Dec 24, 2010 | Sony STR-DE345 Receiver

1 Answer

The digital sound is off after 1 houre str de sony str de 485


It sounds like the receiver is either failing or going into a thermal protection mode.

There should be NO reason why the input source (digital versus analog) should make a difference unless you play the digital sources obscenely louder than the analog ones.

If you suspect heat, you should be able to feel it.

Can you verify that the digital sources ONLY do this?

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I have a sony str-de335 fm stereo receiver and


This can be shorted output transistors (common) or a defective voltage amplifier IC. WIthout taking measurements inside, there is no way for me to make that determination. In any case, this should be a relatively simple repair for a shop that repairs audio gear. Expect a parts cost in the $25-$40 range.

Dan

Aug 19, 2009 | Sony Audio Players & Recorders

1 Answer

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Check if you connect corectly the speakers wiresnand if they are right connected the audio amplifier Ic are damaged

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Sony STR-K1600


http://esupport.sony.com/US/perl/model-find.pl?mdl=TA-N1

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1 Answer

Power On Displays Flashing "Protected"


The audio amplifier IC´s are on short circuit.

Jun 15, 2008 | Sony STR-DE535 Receiver

1 Answer

Sony XM-2200GTX...Power, Green Light, All OK, No Sound!


Sony generally drives their power light from a source that does not rely on the amplifier's switching power supply. This means that it's not a good indicator as to the health of the amplifier.

 

As long as you have B+ and remote voltage, it will light up. Since you've tested the speaker and the signal source, I think the amplifier is likely defective.

Oct 17, 2007 | Sony XM-2200GTX Car Audio Amplifier

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