Korg Forums

Guys,

Unfortunately, I had to change my screen cover again for a second time in abotu a year after I changed the first one.

I do play on average every weeekend... but the total of $160 to replace the screen every year or so is too much.

Has anyone else had to change the screen twice?

I already spent $320 totla and the ehadache of fixing it and down time it getting fixed... (~1 month)...

I am really frustrated with this issue. I own many various Korg keys and this is the only keyboard I had to change the screen on ever...

Any advice?? Anything I can do to complain to Korg other than this website?

Thanks...

I have 2 M3's and have not had to replace the screens yet although the older one is showing some signs of wear. That being said where did you get the touch screen and who did the work. I would first contact the service tech. If anyone other than an authorized service tech using authorized parts did the work then I don't think any amount of complaining will help. Being that its a discontinued product I don't think that Korg will do much but it certainly can't hurt to ask them about it.

Bald Eagle wrote:Being that its a discontinued product I don't think that Korg will do much but it certainly can't hurt to ask them about it.

Well, I contacted Korg tech support via telephone about a month ago. The person I spoke with wouldn't even acknowledge that the M3 has problems with the touch screen overlay. I wasn't impressed with that response at all.

For taki... just out of curiosity, did your first replacement screen overlay have a glossy or matte surface?

I have the same problem. My M3 touch screen started failing a few weeks ago.

I called Korg support in the UK - they told me that the touch screen is no longer supplied. The person I spoke with asked me to let him know if I was able to find a source of the screens, as a number of people have asked for them!

In my day job, I'm an electronics engineer who designs touch screen displays for high end cars, so I set about doing some digging to find a suitable replacement...

According to the M3 service manual, the touch panel is Fujitsu part N010-0554-T017. This looks like it must be a custom part for Korg, as I couldn't find any details or a drawing for it. I did find Fujitsu part N010-0554-T009, which looks exactly the same in photos - at least close enough to take a chance on it.

I then found the following post, on another forum, which suggests that repairers are using the T009 as an alternative part: http://www.justanswer.com/electronic-mu ... where.html

This part is available from Mouser electronics here: http://www2.mouser.com/ProductDetail/Fu ... ZuHg%3d%3d

Cost is around £15 (UK) / $23(US), although delivery is expensive.

I have ordered a couple from Mouser - they arrived from the US a couple of days ago, but I haven't fitted it yet, as I want to video and photo the process. I'll let everyone know how I get on...

Wow... Mikelees, thanks for the info... I am also a EE and I did find the $85 price tag on the LCD screen a little pricey.... I will look into ordering a couple.

As for the other person... yes, I did go to a Korg certified place... I also feel the tech knows what they are doing... I am just not good with taking tape/glue off and being patient with stuff, when it comes to repairs... Thus, for not doing it myslef. But with the lower cost of teh part, when this happens next time, I will try tio myself.

As for the other person that mentioned clalign korg and denying an issue. The first time this happened, I called Korg and they denied it too...

To the other person about how the screen looked... I did not notice any difference in glossiness etc. of the screen when it went bad.

Thanks to all for the comments.. but it is a shame that Korg does not fess up and state there is an issue with the LCD screen for their M3... After all the money, support, free advertisement, I have done for the comapny...

Taki

taki wrote:To the other person about how the screen looked... I did not notice any difference in glossiness etc. of the screen when it went bad.

What I meant was... my original M3 screen overlay was glossy--the replacement one has a matte finish. That leads me to believe there was a change in suppliers.

All those touchscreens, no mather whether it's 1st, 2nd or 10th replacement WILL break down. And we cannot blame Korg. It is also not matter of having screen tilted. It is all because of the fact that these touchscreens are RESISTIVE screens. They will break down not because of Korg, but because of the fact that this technology uses up. At the time M3 was released capacitive screens were not available (or at least were expensive and not popular).
Do not even try to contact Korg- they really cannot do anything. M3 is built of old components, resistive touchscreens were good back in 2007 but now it is 2013, noone uses them anymore. You will have to change it, maybe once a year, maybe after 20 years of usage. But this technology is unreliable and outdated. We can do nothing about that. It is only matter of technology. If you are lucky then you can have no single problem with that, if not- you will have to change touchscreens really often.
That's all about problems with M3's screens. I think THIS is the real point. If you want, you can read more about resistive screens- they need to be replaced sometimes.

I replaced the touchscreen last night with the Fujitsu N010-0554-T009 part from Mouser - it fits and works fine. The replacement screen is less glossy than the original part - so I wonder if this is the part others have been supplying as a replacement??

I have taken lots of photos, so I'll post a "how to replace" guide when I get time to write it up.

I agree that resistive touch screens are inherently less reliable, and capacitive screens wouldn't have been a realistic option at the time Korg designed the M3 (probably 2005-6). That said, there seem to be a lot more reports of the M3 touch screen going bad, than the resistive screens in other Korg models. There are plenty of old Tritons with almost the same HMI, and hence the same usage profile, that don't seem to have the same failure rate, so I suspect there is a specific problem with the M3. Of course, this is only anecdotal data - some hard data on time to failure (poll on forum??) would be good to try to push Korg to offer a warranty extension on M3 touch screens.

I had a very good experience with Yamaha a few years ago, when they replaced the entire keybed on my Clavinova for free, even though it was 5+ years out of warranty, as they admitted there was a specific problem with that keybed.

mikelees wrote: There are plenty of old Tritons with almost the same HMI, and hence the same usage profile, that don't seem to have the same failure rate, so I suspect there is a specific problem with the M3.

Agreed. The Trinity also had a touch screen, and I don't recall hearing about issues with it either.

This problem is specific to the M3, at least in the amount of reported failures. It's sad that Korg has remained silent.

mikelees wrote:I had a very good experience with Yamaha a few years ago, when they replaced the entire keybed on my Clavinova for free, even though it was 5+ years out of warranty, as they admitted there was a specific problem with that keybed.

Now that is respectable customer support! Two thumbs up for Yamaha.

[quote="mikelees"]I replaced the touchscreen last night with the Fujitsu N010-0554-T009 part from Mouser - it fits and works fine. The replacement screen is less glossy than the original part - so I wonder if this is the part others have been supplying as a replacement??

I just ordered a few those and i have a few questions:

1. Does this Fujitsu part come with adhesive or you need to use double sided tape

2. Is the touch panel glued with only edges or the adhesive covers the whole surface of the panel.
There was somebody on this forum that used epoxy glue ':roll:' to glue the touch panel back to the LCD... good luck with exchanging that panel

3. Can you please post the pictures. Especially removing the Touch from LCD. (I'm really scared)
I took the M3 apart without a need to take the PS (power supply) out. It is a bit tricky but you save unscrewing 10 screws and a few connectors when you leave the PS and related PCBs in the place.

I've tried to re-connect the 4 pin connector for the touch but didn't help the left top of the calibration does not work

at the same time I ordered the fastest 2G SD card to get some faster boot when I enable the EXP samples loading

Thank you!

I'm going to answer some of my own questions.
I took the plunge today and installed the touch panel for $22 + my-labor from mouser.com.

- It took 1.5 hour to replace the touch panel. I'm not as fast as the other guys that have done this.
- The touch panel from mouser is indeed a bit translucent not transparent than the original touch panel. When installed you would not notice a difference.
- The original touch panel is attached with strips of black double sided 2-3mm wide adhesive tape.
- I used a hair-dryer to help with the adhesive touch screen.
- The Touch panel is a piece of glass and I cracked the original one when I was trying to remove it.
- I cleaned the double-side-adhesive residue with rubbing alcohol and nails . (the longest part of the replacement)
- I used 2mm double sided clear tape used for iphones/galaxy glass repair from amazon.com
- I cleaned both parts before installation with a lens cleaning blue liquid

Hit me with more questions

The new panel works perfect

0.2

thanks for the explanation.. Hopefully, I will not have to do this for another year or so...

Well, I did not have any gigs this weekend and figure take out the M3 and program some more sounds since I got my screen fixed.

Well, the screen is not totally fixed. Even using a stylis type pen, the screen is not as accurate.

So, I went to calibrate the screen in global mode. The screen comes up with the Done button. When I hit the done button, then I get a box that states cannot calibrate.

I have version 2.04 OS. Is there a newer version I should install with a fix, or is something else that I can do?

Thanks

Version 2.04 is the most current version.

When you calibrate the screen using the Touch Panel Calibration menu command you will see a calibration screen. There will be two areas in the upper left and lower right that you have to touch in order for the calibration to complete.

If you don't touch those areas on the screen you will get that error message that you are seeing.

thanks.. actually, I was going to the aftertouch calibration screen by mistake..

Still, I calibrated the screen, and the screen is not as good. I have to hit the little arrows 2-3 taps with the stylus to get it to respond.

Oh well....