DirectStream DAC Junior restarts by itself


#1

Within the last a couple of weeks, my DirectStream DAC Jr restarts/reboots by itself, as least I thought so. After I put it into standby mode, a couple of times when I went back, I noticed that the unit front screen is on, showing 60 R. More often that not, I can’t put it back into standby mode using the front button and I had to use the remote off button to do that.

Any thoughts?


#2

Brief power glitches can cause the unit to reboot, but, at times not everything had powered down completely. It might be good to power it off with the back switch if things aren’t working as expected after a glitch.

Just today there’s a lot of snow (at least for this area) and just about every time my lights blink the Jr reboots.

Perhaps we can do a more thorough job of initializing after a glitch and perhaps we can make the power loss sensor a little less sensitive.


#3

Maybe the DS Jr is more sensitive? I have the BHK preamp and amp on the same powerline. The BHK preamp did not seem to reboot, since the volume setting was the same as I left it.


#4

Yes, the Jr is the most sensitive thing in my system (which includes the BHK mono blocks.) Before the DS Jr my SimAudio Attraction MC preamp/video switcher was the most sensitive and often times it would be the only thing in the house that glitched in a storm. I hadn’t really noticed the Jr being more sensitive than the Attraction until today.


#5

Hi All,

Yes, I’ve had this happen quote a few times here in Adelaide SA.

We do have a really bad/fluctuating power supply but this is happening twice, x3 a week? Always to a volume of 60 with R in the right top corner? I did return to play music once & the balance had shifted100% to the LHS, I’m not sure this is same thing & it’s only happened once?

I don’t really want to have to switch it off at the back all the time as I read in the manual something about 3 hours before the FPGA is at it’s best?

Cheers

Matt


#6
mattjtaylor2809 said

I don’t really want to have to switch it off at the back all the time as I read in the manual something about 3 hours before the FPGA is at it’s best?


I wouldn’t go that far - most of the warm up time is, well, warming up. If the unit is just switched off for a little that’s not much of an issue. Also, as we all know, getting warm isn’t really a problem for the DS Jr. The longer times after a cold boot are more relevant for the DS Sr.

It does take a little time (maybe 5 minutes?, not hours) after a software update for things to sound their best on the DS Sr, those issues are related to the output transformers during the upgrade. That isn’t a problem on the DS Jr.


#7

Thanks for clarifying Ted…& as you say, warming up not so much of an issue with the DS Jr…she runs HOT!


#8

Hi Guys,

Just wanted to register this issue again as sitting down watching TV yesturday the DSjnr switched on about 5 times in row, sometimes just seconds after I switched it to standby?

I then thought maybe the “radio” was playing in Roon but on checking this my iMac was switched off?

It’s also continually reducing the volume down to 60?

Any thoughts or is this normal?

Cheers

Matt


#9

It’s certainly not normal and since it’s two separate (seemingly unrelated) functions that are misbehaving I suspect either a conflict of remote control codes or, perhaps, sunlight shining on the IR receiver of the Jr. Does the volume descend slowly like you are using the remote or does it instantaneously jump to 60 (and if so is it always exactly 60?)

In an earlier house of mine the volume would go bony on my receiver a few days a year after the second time I figured out those were the only times during the year that the sun hit my receiver…


#10

Hi Ted,

I don’t think it’s sunlight causing this issue as the Jnr doesn’t face the window & the majority of the time the curtains are drawn shut. I’ve not actually seen the volume decrease, it just switches on & the volume is at 60.

It could well be a conflict with the remote as I’ve had my original DSJnr replaced but I kept the remote from the 1st system, not the replacement?

Could this be the issue?

Cheers

Matt


#11

The volume switching to 60 is a known issue that will be fixed in the next version. It is caused by the bridge restarting and forcing a volume change on the DSjr.

Dennis


#12
mattjtaylor2809 said

Hi Ted,

I don’t think it’s sunlight causing this issue as the Jnr doesn’t face the window & the majority of the time the curtains are drawn shut. I’ve not actually seen the volume decrease, it just switches on & the volume is at 60.

It could well be a conflict with the remote as I’ve had my original DSJnr replaced but I kept the remote from the 1st system, not the replacement?

Could this be the issue?

Cheers

Matt


Dennis’s response shows that I was wrong about the two problems being independent. There’s still a chance that there’s some IR signal turning the unit on and off, but given your other posts I don’t think that’s it. Anyway no, it’s not a problem to use a different PS Audio remote. Could you PM me your contact info?

#13

I’ve PM’d my details Ted


#14

My DSJ has started turning itself on when I want it to remain off (i.e. STBY).

I have been having issues with the front panel power button, any number of presses either not turning it on when I want it on, or not turning it off when I want it off. However now, when it has successfully been turned off via the front button, it’s turning itself back on without me doing anything.

DSJ is connected to DMP via !2S, DMP is on and playing to another DAC via AES/EBU. I’m curious why DSJ keeps putting itself out of STBY. Unless I push the front power button, or ON on the remote control, I expect it to stay in STBY.


#15

As a test, does changing the input select to some other input change the behavior? Or if the volume is at 100 does changing it 99 make a difference? Perhaps Dennis has a suggestion.


#16

There is one issue with Torreys and earlier versions of firmware that might cause this issue. There are several remotes for other products that will cause issues like this, Including LG TV’s and Comcast remotes. This issue will be fixed in Huron.

Dennis


#17
Ted Smith said

As a test, does changing the input select to some other input change the behavior? Or if the volume is at 100 does changing it 99 make a difference? Perhaps Dennis has a suggestion.


No to both. It still turns itself on outside these parameters.

#18

Thanks for checking. I’ve got some email in to PS Audio; they or I will get back to you (probably not today.)


#19

This issue is fixed in Huron, Email me at dennis@psaudio.com and we will see if we can help until Huron is released.

Dennis


#20

It is the remote control that is waking up DSJ. Sending I<< or >>I to DMP via IR remote wakes up DSJ.

I<< or >>I via the DMP touchscreen does not wake up DSJ.