Onkyo TX-NR609 Sound only on USB/Internet Radio/DLNA Input

[Sushi1808]

Hi everyone!

I turn to you in hope someone could point me in the right direction since I lack knowledge and experience in diagnosis of audio equipment. (My experience is in computer chip level repairs.)

I bought an Onkyo TX-NR609 receiver which initially produced no sound on speakers/headphones, there was no delayed relay click, speaker matrix icon didn't show up, USB/NET stuck in "Now initializing", instead of DSP/1st NET firmware version there were ?????????...

There was flux residue around the D830K013BZKB4 DSP chip (Q3001) on the HDMI board, some near smd resistors were out of their place and near connectors had burn marks.

I cleaned the board in US cleaner, reballed the DSP, checked and re-soldered the moved resistors according to the schematics. No change.

I then removed and flashed the NAND256W3A2BN6E (Q3002) with firmware for the TX-NR609 (source elektroda.pl).

I now get the delayed relay click, speaker matrix icons show up, I can access USB flash drive and internet radio/DLNA, DSP/1st NET firmware version shows.

I even get sound from speakers but ONLY when source is USB flash drive or internet radio/DLNA. I get no sound when source is tuner, analog inputs or HDMI inputs. Regardless if stereo, pure audio or direct is chosen.

When there is sound (from USB/DLNA) AMUT signal is -14.8V and when no sound (other sources), AMUT signal is 2.48V. I disconnected 47 ohm resistor (R636) from MPD70F3746GJ (Q701) mcu and pulled AMUT_C line to GND, thus disabled the muting circuit (AMUT signal is -14.8V permanently) but still get no sound from inputs other than USB/DLNA.

Which part of the circuit should I check? PCM9211 (Q301)? Is that the common point of failure for the analog and HDMI signals but signals from USB/Internet radio bypass it?

[nobbnobb1]

Re: Onkyo TX-NR609 Sound only on USB/Internet Radio/DLNA Input

These series of Onkyos were notorious for the no sound problem, but it was almost always that chip of which you are saying you reballed already. Did you remove the chip entirely to reball or did you just do the heatgun trick? Also I believe it's called the DTS/HDMI chip

[Sushi1808]

Re: Onkyo TX-NR609 Sound only on USB/Internet Radio/DLNA Input

These series of Onkyos were notorious for the no sound problem, but it was almost always that chip of which you are saying you reballed already. Did you remove the chip entirely to reball or did you just do the heatgun trick? Also I believe it's called the DTS/HDMI chip

Hi, I have removed the chip, reballed it with 60/40 solder balls and re-attached it, I'm not a heatgun cowboy

The baffling thing is that internet radio and .mp3s from USB flash drive play without any issues at all, I have no network connectivity issues...it works very reliably except for the audio from analog/HDMI sources.

A guy from another forum said he has encountered exact same issues many times before and it was always the PCM9211 that needed to be replaced.

I'm waiting for the PCM9211 to arrive and will let you know of the results.

[yajdeeks]

Re: Onkyo TX-NR609 Sound only on USB/Internet Radio/DLNA Input

Replace D830 chip.

[yajdeeks]

Re: Onkyo TX-NR609 Sound only on USB/Internet Radio/DLNA Input

or try make a firmware update from USB

[Sushi1808]

Re: Onkyo TX-NR609 Sound only on USB/Internet Radio/DLNA Input

or try make a firmware update from USB

Thank you for your suggestions.

I first tried replacing the PCM9211 and the issue persists.

When I have the time I will disassemble the unit and do some measurements - trace the analog signal to see where exactly the issue is.

I'm reluctant to replace the D830 because it doesn't exhibit any issues others with faulty D830 / firmware are having. I have already updated firmware via USB, the update process went smoothly but the original issue remains.

[debruina]

Re: Onkyo TX-NR609 Sound only on USB/Internet Radio/DLNA Input

These dsp processors are a known problems. Reball won't help. The problem is inside the chip. You can bring them back alive for a moment when heating up. Maybe in your case that happend now. TI may still have a support doc on their site listing the exact typenumbers