Cailbrate touch screen

Roderick · Post by **Roderick** » Fri Dec 27, 2013 7:45 pm

Hello - I'm new around here, so I hope I get it right! I have an M3-73 Xpanded with all the trimmings, that has been untouched for maybe 6 months, boxed but in an unheated room.

I now want to use the module only, driven by another synth (not Korg - aaghh!). Powers up, midi in and out but nothing. Page select - midi - problem! Can't get the 'Basic' tab - it beeps, but will not display - just the next tab 'midi routing' displays - tap that and the next tab 'ext 1' displays ... and so on.

Tap 'Menu' and 'calibrate touch screen' then tap the rectangles in the corners as directed. One (bottom right) beeps and goes black - the opposite one does not beep and stays white. Exit and a dialog says 'Can't calibrate'.

Nothing in the Manual that I can find. Does this sound familiar to anyone? More importantly, what can be done about it, please?

Help! ... and thanks ...

rollerboy

Synthoid · Post by **Synthoid** » Fri Dec 27, 2013 9:07 pm

Welcome to the forum! You may be experiencing the infamous M3 touch screen problem. Leave the keyboard on for awhile and then try the calibration procedure again.

If that doesn't work after a few attempts, you may need to replace the touch screen overlay.

Roderick · Post by **Roderick** » Sat Dec 28, 2013 8:12 am

Hello Synthoid - I take comfort in that it is a known problem! I'm modifying the set-up platform to sit the Korg module more cosily, so when I've done that I'll switch it all on and try again - and again if necessary!

Presumably this 'touch-screen overlay' is a standard spare part instantly available from Korg?

Rod

Bald Eagle · Post by **Bald Eagle** » Sat Dec 28, 2013 1:35 pm

Roderick wrote: Presumably this 'touch-screen overlay' is a standard spare part instantly available from Korg?
Rod

It's not available from Korg. You can order one from a third party. I got one from http://www.guitar-parts.com./catalog/ko ... h-panel-m3

Sometimes they are in stock and sometimes not. I had to wait over a month to get one.

And doing it yourself is not for everyone. You don't replace it from the front. You take the module apart and work your way in from the bottom.

This thread has a link that has instructions on how to replace it.
http://www.korgforums.com/forum/phpBB2/ ... hp?t=85649

Roderick · Post by **Roderick** » Sat Dec 28, 2013 5:04 pm

Hello Bald Eagle, and oh dear! The essence of Genius is to make things simple! That lets Korg out, then! With a bit of luck the problem may have gone away. I waited a day as advised by Synthoid, which was spent modifying my set-up to accommodate the M3 module more prettily, and on firing up again the screen is working normally! Touch wood! Maybe with normal usage it won't go weird on me.

Hasn't solved the original problem though - the driver keyboard (a Yamaha Tyros 3) still doesn't produce the Korg sound with the T3 sound, although it is transmitting on Ch: 1, but not receiving from the Korg (through the headphones plugged into the T3). Awaiting inpiration (or instruction!) on this.

Thank you for your help

Rod

Bald Eagle · Post by **Bald Eagle** » Sat Dec 28, 2013 6:45 pm

Roderick wrote: Hasn't solved the original problem though - the driver keyboard (a Yamaha Tyros 3) still doesn't produce the Korg sound with the T3 sound, although it is transmitting on Ch: 1, but not receiving from the Korg (through the headphones plugged into the T3). Awaiting inpiration (or instruction!) on this.
Rod

Have you connected the audio outs from the M3 to the Tyros correctly?

Roderick · Post by **Roderick** » Mon Dec 30, 2013 8:17 am

Hello Bald Eagle - um - no! I hadn't ... my sketchy knowledge of midi figured the return midi line (Korg out to T3 in) would do the necessary. However, I finally convinced myself that this couldn't work, and connected the Korg audio outs to the T3 Aux: ins (as the primary T3 ins were already in use for the computer headphone outs). That works! Pity the 'in' volume control doesn't work on the Aux: though, as the Korg audio out volume varies a lot between programs. Switch off the 'Program Change' function on the T3 and I have a workable combo.

The T3 only controls the Korg on Channel R1, so I can play the T3 alone using Channels R2 or R3, but so far I'm not able to play the Korg alone without going to T3 local off, which is too fiddly for use on the fly. More research needed!

This opens up an enormous new experimentation area, almost limitless in scope. Keep me busy for a while, anyway!

Stay well

Rod

Afaber · Post by **Afaber** » Thu Aug 14, 2014 12:28 pm

I have this keyboard at home and my church has the same one--both are having trouble with the touch screen. It is somewhat comforting to hear this is a problem but why hasn't there been a recall? Or has there? My screen comes up but then when I touch the main screen I can't get to my userbanks. Is this the same problem?

Synthoid · Post by **Synthoid** » Mon Aug 18, 2014 5:42 pm

Afaber wrote: It is somewhat comforting to hear this is a problem but why hasn't there been a recall?

It's not comforting, just a sad story for many. No recall. When I called Korg about this problem a long time ago... their response was hopelessly vague. This has been a huge problem for M3 owners over the years, and I found out the hard way that...

We are on our own when it comes to fixing it.

Afaber · Post by **Afaber** » Mon Aug 18, 2014 9:43 pm

Comforting may not be the most accurate word...I am relieved it's not something outrageously expensive and also relieved to know it can be fixed. I was afraid it would cost more to repair than the instrument is worth.

Korg Forums

Cailbrate touch screen

Cailbrate touch screen

M3 73 touch screen

Re: M3 73 touch screen