20 Most Recent Onkyo TX-SR705 Receiver - Page 7 Questions & Answers

Hello Mario
1: check connection properly.
2: test Speakers left and right on the channel that is working.
Do you have HDMI built in the AVR or not?
Some models does not have HDMI.
Try and give a feedback.

Onkyo Audio... | Answered on Sep 09, 2019

There are a lot of customers having the same issue.
It is a manufacturer defect.
Sorry for you.

Onkyo Audio... | Answered on Sep 09, 2019

what kind of a preamplifier you are using between the Turntable and the Amp.
please take a photos of the preamp from inlets and outlets.
so i can figure it out.

Onkyo Audio... | Answered on Sep 09, 2019

When the device stay on STBY it means it is in a protection mode.
means also safe mode so it wont make more damage.
Try this my friend.
1: please check speakers cables.
If you have some knowledge in Electronics
test on the supply board in/out volts and power Amp voltage (Not on the transformer)
check with diagram as shown


Onkyo Audio... | Answered on Sep 09, 2019

can you add a foto of the error plz so i can see what you have!

Onkyo Audio... | Answered on Sep 09, 2019

Same situation as this. V means DC protection.

http://www.fixya.com/support/t26859458-need_help_onkyo_tx_nr636_cuts_off_as235c75ae-0611-4ecd-b799-2e12c2784c09.jpgforum-zzw53jh0vnu5wdtpskq2i21s-4-2.jpgforum1 -zzw53jh0vnu5wdtpskq2i21s-4-3.jpg819279_200_200-12hrymc5q4xy5bipfulaagnc-1-3.jpg819280_200_200-12hrymc5q4xy5bipfulaagnc-1-5.jpg819279_200_200-12hrymc5q4xy5bipfulaagnc-1-4.jpg


Onkyo Audio... | Answered on Aug 30, 2019

Good luck my friend. A needle in a haystack, sorry!!

Onkyo Audio... | Answered on Aug 21, 2019

You need to check several voltages
(2)FLAC1 and FLAC2
(3)drive signals to FL needs a digital storage oscilloscope to observe waveform. Or replace chip directly.
This is a full picture.


Onkyo Audio... | Answered on Jun 24, 2019

does it make any sound when you click the eject button? please explain the problem in brief.

Onkyo Audio... | Answered on Jun 17, 2019

"Tone Control is not working when I push the button but the light will go on and off." Download TX8511 service manual. Tone control circuit involving balance, bass and treble circuit is defective. Check circled componets or replace them all. If replacing them all, balance circuit should also be replaced.


Onkyo Audio... | Answered on Jun 13, 2019

"ONKYO tx-nr737, when I am connected via Bluetooth to my iPhone for music I get a SP Wire message. " The wifi and bluetooth part is defective, replacing it may fix your problem. See photo how a good wifi and bluetooth works.


Onkyo Audio... | Answered on Jun 13, 2019

"I accidentally touched a speaker wire to the metal spikes on the bottom of my speaker. " This action makes +B voltage (positive voltage) short to ground. You may assume 2 power transistors mounted on a large heat sink are defective. Now try to remenber which speaker terminals was accidentially shorted. Then check this terminal or you should check all power transistors mounted on the heat sink, by measuring the collector and emitter resistance. Normal value is Mega ohms and all white 3 pins resistor with 0.22ohm should also be checked if they are open( infinity resistance).I have tried to reset it several times to no avail. Of course, due to defective power transistors. Is my receiver done? Yes. I wrote detailed troubleshooting steps used in onkyo service dept. a year ago, just find it out in my answers.210cda21-872d-438d-949c-2196ccf76712.jpg

For your case, DET. PROTECT: I instead if entering debug mode.forum.php-1foajingjd1ngrzzacwcq31h-2-2.jpeg
NG L R BL BR, This amp is under DC protect.

Onkyo Audio... | Answered on Jun 08, 2019

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