Had the same long time ago, but now doing it more often
Symptom :
Sometime during the day my NAC 282 have light coming on (usually set off) .
This happen today during my listening session. Music stops and Nac goes on mute mode with light on…the. After xx second music is coming back and lights stays on
Sounds like either something is momentarily interrupting one of the power supplies, or the control side of the 282 has a hardware fault & is as you say rebooting.
If the unit is “forgetting” your settings, this would point to a hardware problem. If you set an input to RCA input or unity gain, does the unit retain these settings after this happens?
I have a Rega RP10 and an NDX connected to my Nac 282 and all setting a still the same after the reboot than in was before.
During the reboot only light from NAC are turning on (that was not the initial setup…set off)
Could you try something? Switch off your power amp(s)*, set the 282 display to off, then unplug the PSC & plug it back in. Does the 282 display then revert back to the off state after the mute period?
*should have said wait a minute for them to discharge.
Ok, thanks for performing that test. Unfortunately it does sound like you have a hardware issue.
The only other thing that may be influencing it could be some odd IR interference. So you could try blocking the logo with some thick card for a while & see if that makes any difference?
unplugged my SUPERCAP (keeping both NAC250 and Hicap powered On)
unplugged the “power” (PSC) of the Nac282.
When PSC plugged again and after the mute period (light on) the Nac282 is back with the setting that was set before (light off) on same source “aux2” as selected before
TEST 2)
turned Nac282 display off
unplugged my SUPERCAP + NAC250 (keeping Hicap powered On)
unplugged the “power” (PSC) of the Nac282.
When PSC plugged again and after the mute period (light on) the Nac282 is back with the setting that was set before (light off) same source “aux2” as selected before
IF REBOOT :
When reboot is happening the source is the same as the one selected before the reboot (eg Aux2 when listening Vinyl)
TEST 3 :
Perhaps a stupid question but could this be caused by the Hicap ?
If
Hicap unplugged
PSC unplugged
Hicap plugged back
PSC plugged back
When PSC plugged again and after the mute period (light on) the Nac282 is back but still LIGHT ON ( source input as “aux2”, as selected before ) => CORRECTION : Light back to OFF , but need lot more time than for Test 1 and Test 2
If it weren’t for the 282 not reverting to display off after this happens, I would say something is interrupting one of the power supplies. That’s the weird part!
I’d keep monitoring it for a while, try masking the remote sensor (logo), you could also try running the 282 with nothing but its power supplies & everything else disconnected and see if it happens again.
My 282 does this whenever I place my hand fully on the top of the unit if playing, which I did to retrieve my Staffordshire Terrier’s toy once. I goes back to functioning after a minute. I always figured it was the static. I’ve ‘tested’ it a couple of times and you can guarantee - if I place my hand on the box it’ll go into mute.
@Richard.dane : yes, I have a Powerline on my Hicap and another one on my NAP250.2
I’ve plugged it strongly and when moving it slightly nothing happen.So it’s plugged as strong as expected .
In addit, seams that having Hicap turned off and back on is not rebooting the NAC282 the same way and not causing NAC282 led going back to “ON “.
During my this test NAC 282 Led were back to “OFF” after several minute .