Korg Forums

rickster1 · Posted: Tue Jul 21, 2020 4:48 pm Post subject: Power cuts out unexpectedly

In the last couple weeks my 8 1/2 yr old Kronos (1st gen) has been shutting off unexpectedly after 20 or 30 minutes. Today I turned it on to upgrade to 3.1.3 OS and it won't even make it through the boot-up. Just blinks off.

I'm not getting a warning message because the power is not staying ON.

I'm currently using OS 2.1.2.

I usually have it plugged in to a UPS, but thinking the problem might be the UPS, I plugged the K directly into the wall.
Never a problem with the local power, tho.

Is there a part / component that would wear out causing this result?

JFree · Posted: Tue Jul 21, 2020 5:13 pm Post subject:

Possibly it's power supply, RAM unseated (not as likely if you don't move it around much) Hard drive on it's way out.

rickster1 · Posted: Tue Jul 21, 2020 6:12 pm Post subject:

GregC · Posted: Tue Jul 21, 2020 6:26 pm Post subject:

rickster1 · Posted: Tue Jul 21, 2020 6:45 pm Post subject:

GregC · Posted: Tue Jul 21, 2020 6:53 pm Post subject:

rickster1 · Posted: Tue Jul 21, 2020 7:14 pm Post subject:

GregC · Posted: Wed Jul 22, 2020 12:29 am Post subject: Re: Power cuts out unexpectedly

rickster1 · Posted: Wed Jul 22, 2020 12:11 pm Post subject: Re: Power cuts out unexpectedly

Liviou2004 · Posted: Wed Jul 22, 2020 1:32 pm Post subject:

You'd better bring you Kronos to a repair service.

Trying to power it on so many times, without knowing where the problem is coming from, can damage components.

All electronic cards do need stabilized tension. If there is an issue with the power supply board, it can deliver some voltage peaks.

So my advice would be : stop trying to switch it on and confide this task to a certified repair service.

Sweat · Posted: Wed Jul 22, 2020 2:03 pm Post subject:

JFree · Posted: Wed Jul 22, 2020 3:21 pm Post subject:

Reseating RAM/cables is a good-fairly easy start and could be the culprit. I had a second drive fail that caused odd behavior-would shut off randomly, sometimes fail during boot process, and eventually not boot at all. I've had RAM unseat and cause it to die or not boot. I believe it goes thru a check of different components as it's booting and something off could prevent it from continuing. I also replaced a dodgy power supply.

Moonglow · Joined: 10 Jul 2010 Posts: 43

This thread scares me. I too, have an 8.5 year-old Kronos. I gig around three times per month (pre-COVID) but move it myself, using kid gloves. I do frequent back-ups, and back-up the back-ups. But unrealistic to think these machines will last forever. Just hope it doesn’t occur at a gig.

rickster1 · Posted: Wed Jul 22, 2020 7:19 pm Post subject:

Moonglow - My K started power-failing about 6 or 7 weeks ago, did it 3 times while I was home with it; then i had to take it to a 3 nite gig after that - I thought it was related to an old UPS I had it plugged into.

So I brought along a MODX7 that I have as a back-up. Kronos held up for the 3 nites, and another important gig after that.

I brought it home, worked with it in my studio for 2 more weeks before it really started failing in earnest. Monday it wouldn't even get through the boot-up.

Looking back now, I was really lucky it didn't fail on those gigs.

AntonySharmman · Posted: Thu Jul 23, 2020 10:13 am Post subject: