Korg Forums

ramongd · Joined: 09 Jun 2019 Posts: 10

hi, my kronos boot but it appears with white screen, you change the screen and as you want it remains the same, I also change the video cable. This works with ipad remote app

Someone has had this problem?, or know where you can get this Korg Kronos LCD Connector Board (KLM-3007)? to see if this is a problem
I do not speak a lot of english

Falcon2e · Posted: Sat Jun 15, 2019 2:42 pm Post subject:

Does it operate normally with no optional items connected to it?
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Kronos2-61..(2) Triton Classic, Nord Stage 2, Previously owned lots of other gear dating back to the 70’s.

ramongd · Joined: 09 Jun 2019 Posts: 10

ramongd · Joined: 09 Jun 2019 Posts: 10

I can use the touch of the screen but there is no video

Falcon2e · Posted: Sat Jun 15, 2019 3:39 pm Post subject:

If your Kronos works perfectly without other optional items connected to it, maybe the problem is not your Kronos.
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Kronos2-61..(2) Triton Classic, Nord Stage 2, Previously owned lots of other gear dating back to the 70’s.

ramongd · Joined: 09 Jun 2019 Posts: 10

I bought a new screen, do you think it may be damaged?

Falcon2e · Posted: Sat Jun 15, 2019 4:39 pm Post subject:

ramongd · Joined: 09 Jun 2019 Posts: 10

Ok, thanks for your answers , apparently not much has tended this experience

timg11 · Senior Member Joined: 04 Jun 2008 Posts: 459

@Falcon2e, I think maybe @ramongd didn't understand what you meant by "optional items connected".

@ramongd, If you unplug everything from the Kronos except the power cord, does the display still appear all white?
Optional items could be things connected by USB, pedals, or MIDI.
Since you said it works with Ipad remote app, the Kronos is probably booting normally. It sounds like maybe an issue with the display or driver board, or the associated cables.

@Falcon2e, the reason I say this is because even if there is a serious problem with the motherboard, memory, or disk drive, the display will initialize and will display an error message like "SYSTEM STARTUP FAILED Please turn the Kronos off, wait, and then turn it back on. "
It is true that USB devices left connected can sometimes prevent boot and cause that message to be displayed.

@ramongd, if you are working on this yourself, you should check the cables on the KLM-3007 LCD interface board. Since the power and data are provided through the same cables, the fact that the display lights up shows the cables are connected. But there might be damage to the cables, or they are not fully seated, causing the display data to not reach the LCD.

Here's a photo for reference (Kronos 2). I can't use inline image because the board doesn't scale and it is too big otherwise.
http://www.synthify.com/Kronos_Module/20170617_173602.jpg
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Kronos2 73, Presonus StudioLive, Cakewalk / Sonar Platinum, Windows 10

ramongd · Joined: 09 Jun 2019 Posts: 10

If you unplug everything from the Kronos except the power cord, does the display still appear all white?
YES

The cable contact goes down on the KML 3007 and up on the KLM -3360?

Falcon2e · Posted: Sat Jun 15, 2019 6:00 pm Post subject:

ronnfigg · Posted: Tue Jun 18, 2019 6:54 am Post subject: