I have the technical skills, but I don't like very much the idea to make changes into the Kronos
Kronos X73 Turn On/Off Problem.
Moderators: Sharp, X-Trade, Pepperpotty, karmathanever
- AntonySharmman
- Approved Merchant

- Posts: 3796
- Joined: Sat Oct 16, 2010 2:24 pm
- Location: Hellas
- Contact:
Crystal clear plus my 10 cents , but in any case of discontinued Kronos PSU , this is the best solution !massca wrote:I don't like very much the idea to make changes into the Kronos
Music Conductor - Sound Engineer & Developer - Automotive SMPS/RF R&D - Electronics Engineer
Keyboards : Steinway-D, Kronos X, Pa5X 76, Pa4X 76, Montage M7 , Roland-XV88, Emu3,Emax II, Synclavier II , Yamaha DX Series, ΟΒ-8V

wavesΑrt official webpage - KorgPa.gr
DEMO's Playlist - WavesArt Facebook
Keyboards : Steinway-D, Kronos X, Pa5X 76, Pa4X 76, Montage M7 , Roland-XV88, Emu3,Emax II, Synclavier II , Yamaha DX Series, ΟΒ-8V

wavesΑrt official webpage - KorgPa.gr
DEMO's Playlist - WavesArt Facebook
Service repaired my KronosX PSU and checked it. Serviceman said that Kronos is working, and starting up 100%. But in my house, i still have the same problem.
So, PSU is 100% efficient, RAM is 100% efficient.
Previous owner don't have any problems, serviceman said that my Kronos is 100% efficient and works correctly 100%.
Is it possible that its problem with SSD? Maybe electric current in my house?
So, PSU is 100% efficient, RAM is 100% efficient.
Previous owner don't have any problems, serviceman said that my Kronos is 100% efficient and works correctly 100%.
Is it possible that its problem with SSD? Maybe electric current in my house?
-
GregC
- Platinum Member
- Posts: 9451
- Joined: Wed May 15, 2002 12:46 am
- Location: Discovery Bay (San Francisco Bay Area)
from what I read I would buy a UPS yesterday for your Kronos.dbx1214 wrote:Service repaired my KronosX PSU and checked it. Serviceman said that Kronos is working, and starting up 100%. But in my house, i still have the same problem.
So, PSU is 100% efficient, RAM is 100% efficient.
Previous owner don't have any problems, serviceman said that my Kronos is 100% efficient and works correctly 100%.
Is it possible that its problem with SSD? Maybe electric current in my house?
You could try another house outlet.
if the UPS acts like a band-aid, then have an electrician inspect your house power. It might be simple- like you are using or have a bad outlet.
- AntonySharmman
- Approved Merchant

- Posts: 3796
- Joined: Sat Oct 16, 2010 2:24 pm
- Location: Hellas
- Contact:
Sorry to say that but ... Nope ! he didn't repaired your PSU , besides I'm sure he is not able to repair it , only to replace it , asdbx1214 wrote:Service repaired my KronosX PSU and checked it. Serviceman said that Kronos is working, and starting up 100%
happens in 99% of all cases !
Anyway do as GregC said , use a UPS to be sure , restart Kronos several times with less than 5 sec intervals and if you face
the same issue again then read again my initial diagnose !
Music Conductor - Sound Engineer & Developer - Automotive SMPS/RF R&D - Electronics Engineer
Keyboards : Steinway-D, Kronos X, Pa5X 76, Pa4X 76, Montage M7 , Roland-XV88, Emu3,Emax II, Synclavier II , Yamaha DX Series, ΟΒ-8V

wavesΑrt official webpage - KorgPa.gr
DEMO's Playlist - WavesArt Facebook
Keyboards : Steinway-D, Kronos X, Pa5X 76, Pa4X 76, Montage M7 , Roland-XV88, Emu3,Emax II, Synclavier II , Yamaha DX Series, ΟΒ-8V

wavesΑrt official webpage - KorgPa.gr
DEMO's Playlist - WavesArt Facebook
-
psionic311
- Platinum Member
- Posts: 1046
- Joined: Fri Nov 14, 2014 11:57 am
- Location: Orlando, Florida USA
For one thing, you should not turn off and then turn on immediately... it says in the manual specifically NOT to do this. You must wait at least 10 seconds.
From page 8 in the Operator's Guide:
2. POWER switch
This switch turns the power on and off. Before turning
KRONOS off, make sure that you’ve saved any edits to your
Programs, Combis, Songs, or other user data.
After turning the power off, please wait for at least ten
seconds before you turn the power on again.
Secondly, I would strongly advise you get a UPS to protect your Kronos. It will give you clean power and a battery backup in case of a blackout or brownout, so that the Kronos power needs are protected.
From page 8 in the Operator's Guide:
2. POWER switch
This switch turns the power on and off. Before turning
KRONOS off, make sure that you’ve saved any edits to your
Programs, Combis, Songs, or other user data.
After turning the power off, please wait for at least ten
seconds before you turn the power on again.
Secondly, I would strongly advise you get a UPS to protect your Kronos. It will give you clean power and a battery backup in case of a blackout or brownout, so that the Kronos power needs are protected.
- AntonySharmman
- Approved Merchant

- Posts: 3796
- Joined: Sat Oct 16, 2010 2:24 pm
- Location: Hellas
- Contact:
Checking Kronos PSU in another house is not a prove or solution !
Buy a 100 watts cheap UPS of 40 $ that you will need it anyway and then check this issue !
If this still exists then get prepared to replace Kronos PSU but not now , only when this time will come , that might last to long ...
But if this bothers you , ask your service to replace it (if available though).
Also remember that as I said before , there is also a case of motherboard control problem , rare case but it can happen !
PS : As a developer , I turn on and off Kronos in intervals <3 seconds for 20 times per day for many months until today ,
PSU is a SMPS (that I design for years) and definately do not need time intervals , only OS could face issues , but this is not the case here !
Buy a 100 watts cheap UPS of 40 $ that you will need it anyway and then check this issue !
If this still exists then get prepared to replace Kronos PSU but not now , only when this time will come , that might last to long ...
But if this bothers you , ask your service to replace it (if available though).
Also remember that as I said before , there is also a case of motherboard control problem , rare case but it can happen !
PS : As a developer , I turn on and off Kronos in intervals <3 seconds for 20 times per day for many months until today ,
PSU is a SMPS (that I design for years) and definately do not need time intervals , only OS could face issues , but this is not the case here !
Music Conductor - Sound Engineer & Developer - Automotive SMPS/RF R&D - Electronics Engineer
Keyboards : Steinway-D, Kronos X, Pa5X 76, Pa4X 76, Montage M7 , Roland-XV88, Emu3,Emax II, Synclavier II , Yamaha DX Series, ΟΒ-8V

wavesΑrt official webpage - KorgPa.gr
DEMO's Playlist - WavesArt Facebook
Keyboards : Steinway-D, Kronos X, Pa5X 76, Pa4X 76, Montage M7 , Roland-XV88, Emu3,Emax II, Synclavier II , Yamaha DX Series, ΟΒ-8V

wavesΑrt official webpage - KorgPa.gr
DEMO's Playlist - WavesArt Facebook