PWD 1 upgraded to PWD 2 - issue


#1

I’m the happy owner of a PWD mk1. A friend of mine just upgraded his PWD2 to a DirectStream with the DS kit. I’ve therefore bought all the hardware from his PWD mk2, so that I could upgrade my PWD mk1.

I’ve just finished installing it all - digital board, analogue board, power board and power supply - and everything fitted in perfectly (it was surprisingly easy). I finished by installing firmware version 2.4.6. The unit booted up perfectly and connects to my MacBook through USB - the light on the display switches from red to green and the unit clicks. But there is no sound coming from the DAC - neither through RCA nor XLR. I’ve also tried with digital input from a CD-player using COAX, but it’s the same result. No sound.

When I installed the new firmware there was noise coming from the speakers, so it must be connected.

Does anyone have any suggestions?


#2

If you still hear the noise, it might be related to my case: http://www.psaudio.com/forum/need-help-ask-alex-the-psa-expert/loud-noise-from/


#3

First I would double check all the cables are properly seated (maybe pull then and reseat them). I assume the volume on the PWD is turned up (double check that too).


#4
Alekz said If you still hear the noise, it might be related to my case: http://www.psaudio.com/forum/need-help-ask-alex-the-psa-expert/loud-noise-from/
The noise was only there when the firmware was updating.

#5
stevem2 said First I would double check all the cables are properly seated (maybe pull then and reseat them). I assume the volume on the PWD is turned up (double check that too).
The volume is at 100. I'll double check all the internal connections.

#6
Kenneth said

The noise was only there when the firmware was updating.


Ah, in this case it’s a normal behaviour.

#7

I have now double checked that all the cables are properly seated - they are. Everything is connected.

I have also tried to install an older firmware (2.2.0) - but that made no difference, so I installed 2.4.6 again.

Any further suggestions? Could this be a software issue?


#8

Do you have J15 J16 J17 and J18 connecteed the digital input? If not you need a jumper on JP2.

Dennis


#9
Dennis Kerrisk said Do you have J15 J16 J17 and J18 connecteed the digital input? If not you need a jumper on JP2.

Dennis

Hi Dennis,

Thank you for your reply. Yes, all four are connected at both the digital and analogue board. I’ve posted some picture links below - perhaps they can give a clue?

Connections at digital board: https://www.dropbox.com/s/rv70d116bnp476i/DSC_4338.jpg?dl=0

Connections at analogue board: https://www.dropbox.com/s/i6uho6bxvrtptnd/DSC_4340.jpg?dl=0

Picture of digital board: https://www.dropbox.com/s/k1xhe3s9x1vkawq/DSC_4344.jpg?dl=0

Picture of power supply and power board: https://www.dropbox.com/s/hv2tfk48usqamr6/DSC_4346.jpg?dl=0

Picture of power board: https://www.dropbox.com/s/yeukufyh4rmgck8/DSC_4347.jpg?dl=0


#10

Thanks. I see one thing one the pictures that I am not sure about. Let me check it out when other people get in to the office this morning. I will get back to you in a few hours if it is a problem.

Dennis


#11
Dennis Kerrisk said Thanks. I see one thing one the pictures that I am not sure about. Let me check it out when other people get in to the office this morning. I will get back to you in a few hours if it is a problem.

Dennis


Thank you very much, Dennis!

#12

What I saw is not a problem. One thing you can try is disconnect j15-j18 and put a jumper on JP2 if you get audio with it set up like this, either one of the cables on j15-j18 was not hooked up correctly, or is bad.

Dennis


#13
Dennis Kerrisk said What I saw is not a problem. One thing you can try is disconnect j15-j18 and put a jumper on JP2 if you get audio with it set up like this, either one of the cables on j15-j18 was not hooked up correctly, or is bad.

Dennis


I apologise for what may be a stupid question, but what and where is JP2? :-)

#14
Kenneth said
Dennis Kerrisk said What I saw is not a problem. One thing you can try is disconnect j15-j18 and put a jumper on JP2 if you get audio with it set up like this, either one of the cables on j15-j18 was not hooked up correctly, or is bad.

Dennis

I apologise for what may be a stupid question, but what and where is JP2? :-)


Right by where is says PS Audio on the digital input board.

Dennis


#15
Dennis Kerrisk said
Kenneth said
Dennis Kerrisk said What I saw is not a problem. One thing you can try is disconnect j15-j18 and put a jumper on JP2 if you get audio with it set up like this, either one of the cables on j15-j18 was not hooked up correctly, or is bad.

Dennis

I apologise for what may be a stupid question, but what and where is JP2?

Right by where is says PS Audio on the digital input board.

Dennis


Isn’t that J11?

#16
Kenneth said
Dennis Kerrisk said
Kenneth said
Dennis Kerrisk said What I saw is not a problem. One thing you can try is disconnect j15-j18 and put a jumper on JP2 if you get audio with it set up like this, either one of the cables on j15-j18 was not hooked up correctly, or is bad.

Dennis

I apologise for what may be a stupid question, but what and where is JP2?

Right by where is says PS Audio on the digital input board.

Dennis

Isn’t that J11?


The connector is J11. Right next to the connector is JP2. Right below the 14 pin chip.

Dennis


#17
Dennis Kerrisk said
Kenneth said
Dennis Kerrisk said
Kenneth said
Dennis Kerrisk said What I saw is not a problem. One thing you can try is disconnect j15-j18 and put a jumper on JP2 if you get audio with it set up like this, either one of the cables on j15-j18 was not hooked up correctly, or is bad.

Dennis

I apologise for what may be a stupid question, but what and where is JP2?

Right by where is says PS Audio on the digital input board.

Dennis

Isn’t that J11?

The connector is J11. Right next to the connector is JP2. Right below the 14 pin chip.

Dennis


Okay, found it! I disconnected the J15-J18 leads and put a jumper on JP2, but still no signal from the DAC. The J15-J18 leads looks pretty intact and they appear to connect properly, so I doubt they are the problem. :-/

#18

Sorry that did not point you in the right direction.

Dennis


#19

I appreciate your help, Dennis!! I’ve taken a picture of the unit powered up - the green LED’s on the analog board lights up, so I assume it is fed with power. I really can’t grasp why there is no signal coming from the analog outputs - everything seems to be right and work :-/

Picture: https://www.dropbox.com/s/86gvutpi9to6xku/DSC_4356%20%281%29.jpg?dl=0


#20

Is it possible that it could be a firmware issue? Is it possible to “empty” the unit completely of software and reinstall it - as a kind of rebirth? I apologise if this is a stupid theory, but I was just wondering…