20 Most Recent Onkyo Remote Control RC-590M p/n:24140590 - Page 8 Questions & Answers

The TX 8555 can drive the speakers directly but if you want to use the equalizer then you need to add an amplifier to the system so that you can feed the pre-amp connections from the TX8555 through the equalizer and then into the amplifier to drive the speakers. This is because the TX 8555 doesn't have a loop back function for monitoring recordings.

This site may be helpful. The possible answer is near the end. https://www.hometheaterforum.com/community/threads/onkyo-surround-sound-rear-speakers-no-sound-but-work.307946

I suggest you check the settings to make certain everything is correct, the way it was when you first set it up. OR you could try and reset the thing by setting it all up again. If you can find the factory reset on the unit, do that and then do all the settings again.

maybe the speaker is defective, conect diferent speaker

http://www.fixya.com/support/t26883862-dx_c390_compact_disc_changer_get_mech

Try to use S/PDIF (Coax or opt)for audio input instead of HDMI may solve the problem.

You should reset the amp to factory default to see if audyssey disappear. Unfortunately, over 90% using reset to kick audyssey out does not work. What can I do? Calling onkyo to repair is the only option. Never use this function, wifi and bluetooth in onkyo av-amp except warranty is not expired.

No, you cannot do this. Onkyo is just a "receiver" to receive signal not a "transmitter". The receiver requires a "host" to send signals via bluetooth to it in order to playback instead of sending signal to another receiver, your bluetooth headphone. Bluetooth earphone also needs a host (a smart-phone)to send signal to it to playback for you. Any attempts to ask onkyo receiver to send signal via bluetooth will be in vain.

“remote does not operate volume, have to increase decrease manually,” (1)Open remote cover.(2)Clean remote PCB and volume buttons with dry cloth.
(3)add some sliver paint on black colour volume buttons.
(4)wait for paint to dry
(5)remote can be used again.

My onkyo tx-v940 has very low volume. You shouldCheck the voltage supply to both +B and -B voltage.If both voltages are low, the voltage amplification via differetial and voltage amps will be low. Finally, low Volume due to power = VI. If V is low, so does powerOutput. The negative voltage can also be measured as that of +B with black probe clamped to heat sinkby a crocodile clip.

May hav take it apart n fix obstruction or ask a radio store

Enter debug mode to see which type of protection causing amp to shut down.

Apparently so, according to advertisement: https://www.blu-ray.com/Onkyo-TX-SR674/13978/

Download HTR530 Service manual.How to measure voltages?(a)connect the black probe to the heart sink via acrocodile clip. Heat sink can be found easily if you are looking for 12 power transistors.(b)the red probe can connect to any interested points,for example, the POFF (see video1)Check voltages first: POFF(must have. And check 3 components circled in blue see video 1 the last measured voltage) ,10VS (must have)and 12V and also the MPowerd voltage (see video 1) Video 1 shows the MPowerd voltage The lst measured voltagethe - MPowerd voltagemust be ZERO when the amp is switched ON.. Are these voltages present?If so, check reset or you can replace them directly (circled in yellow See video2 and video3)Plug the amp, to see if it is working.If not ,replace 3 components circled in red.If not working again, you can replace the crystal X701,a component 6 MHz, not easily damaged (see video4).If also not working, CPU is torn out.

Have you tried replacing the cord? If a new one doesn't work, then it sounds like the socket is just damaged, or has something stuck inside it! In which case the socket would need to be replaced, if broken.