Korg KROME Workstation Broken Key Weight Repair
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- čas přidán 24. 08. 2019
- In this video I take apart a Korg KROME Workstation to fix a broken C# key weight. This is an 88-key board from a local church. Previously I took this board apart to find out the issue, but needed to order parts and book more time for the repair. Follow along for the repairs.
2:20 - Dismantle Begins
eBay Link: Replacement Key hammer
www.ebay.com/itm/Replacement-...
Amazing video. I've been thinking about pulling apart my Krome 61 so I can whiten its very yellowish keys with peroxide. Watching and rewatching this video is starting to give me confidence that I can do it. Massive thanks for taking the time to do this, and for explaining the process so well.
retro you can do it for sure. It’s just a bunch of screws to keep track of.
When I was moving I managed to jam one of my keys up and out on my Korg SP-170S. Was super unsure about pulling it apart myself but thanks to your video I went ahead and got it fixed in under an hour! (The little black nubbin had pulled off and gotten stuck in between the key and the weight, just needed to reset it and it was good to go)
I appreciate you posting this so I didn't lose time and money trying to find someone else to fix this for me! Thanks!
Well done on the repair. Time to make more music now.
Great video. Thank you for posting.
I watched your video and the keybed for the Krome 88 and Kross 88 appear to be the same. I just replaced an octave of keys on one of my Kross 88 (first generation model) synths earlier today. The hammers looked identical as well. The removal of the top cover looks the same, as well as the entire keybed.
Maybe this could help those with the Kross models as well. These are not the best keybeds in the world, but they are sufficient for most users.
This is the exact thing my nightmares are made of. With my luck, I'd have extra screws leftover, LOL (good job, BTW).
The black plate that's in front of my keys (Korg M50 88-key Workstation) is loose and it's loud AF when I play. I'm pretty sure it's an easy fix but this is the only video I was able to find that even somewhat related to my issue. Whenever I need to replace a broken key, though, I'm comin' back to this video!
I have exactly the same issue with my Korg SP250, gonna try and fix it myself after seeing this, thank you!
Btw, I'll let you know how it ends ..!
Massive help, thank you.
Thank you so much for this video. I don't know how many times I watched it.
It saved me a lot of stress and made my experience a breeze.
I had to replace the rubber contacts as different keys were sounding at different volume and velocity no matter how lightly you press them.
That’s awesome, I’m glad the video was helpful. Thanks for sharing your success.
is the dc power inlet easy to replace? any videos on that?@@AllamHouse
@@thequeensgardener this is the only video I have made on a keyboard. I would assume it is a similar process to get into the board and the just find the connections to swap from the old to new power supply. Maybe a few screws hold it in place as well. Good luck with the repair.
@@AllamHouse thanks for the response..ill give it a shot
Huge help thanks!
Eu tenho um korg krome 88... Estava com um probleminha... Não sabia o que fazer. Depois que assisti o seu vídeo criei coragem e abri o meu piano... Graças a Deus e a vc que deu tudo certo... Obrigado amigo por compartilhar este vídeo.
I had to use Google Translate to understand your comment. Thanks for the encouragement. I'm glad you were able to fix your issue.
excellent video!!! thank you
Спасибо за подробную инструкцию!!
Собираюсь менять резинки и добавить правильной смазки на рабочие рычаги.
Очень полезная инструкция для разборки-сборки инструмента.
Thanks for the encouragement. Google translate allowed me to figure out what you said.
Спасибо за поддержку. Удачи с ремонтом.
Thanks for this! Big help.
I’m glad you found the video helpful. Good luck with your repair
Thanks for your video, did help me alot ❤👍
Thanks for the feedback.
So thank's for this! Big help.
I'm glad you found it helpful.
Excellent video
Thanks for the encouragement.
Excellent video. Thanks.
Alan Sizer glad it might help you out.
@@AllamHouse I was puling my wife's Krome apart and thought I'd better look it up. Found your video, then I found those last two screws just before the I got to that point in the video:-). Different problem on this keyboard - a high F# has been responding erratically. There's nothing wrong with the key action, just sometimes not producing much sound, other times too much and often delayed. I suspected a mechanical issue with the switches like dust ingress, but everything seemed OK visually. I've given it a bit of a clean , and reflowed a couple of solder joints. We'll see how it goes tonight when I putit back together. Hoping I don't have any screws left over, too!
Alan Sizer this one seemed to have some inconsistent key response as well, but the board was still playable. When I tested it (after repair) it was still present and I could see it on the level meter on the display. The owner has been dealing with it and was happy to have the weight fixed. Good luck with yours. Don’t forget to put those last two screws back 😁
@@AllamHouse all back together and no screws left over. It seems to be working OK now. The other half says perfectly, but I'm a bit more reserved.
Thanks to this video my Krome 88 is up to snuff again.
One thing I learned is you do not have to remove the long green circuit board 9:25 to remove the key weights.
It's a little tight but once you do one and know the angle/sweet spot they are easy to replace.
Parts is parts , is the best place for replacement parts.
Thanks for the feedback and adding this information for the community to benefit. I'm sure anyone else looking to repair their board will be grateful for this information.
Thanks. This answered my question. If it just pops out and pops in, why remove the circuit board? I'll be doing 4 keys tomorrow on the SP-280. It's 8 years old and has played thousands of gigs (no exaggeration!). So I bought a replacement (new) and will probably sell the older one, but now back in perfect condition (assuming all goes well tomorrow).
Very good video!
Thanks for the encouragement.
I have Korg Kross 2 88 key and the chassis design looks very similar and probably the same keybed, my problem is different and notes aren't working because I think there might be dust or something at the rubber contacts. Your video has given me the confidence I need to approach pulling apart my almost new keyboard...(done repairs with my older keyboards but this is so new, hence my reluctance, but it's got to be done).
I’m glad it helped you out. Now you can get back to making music.
@@AllamHouse Well, I haven't done it yet, the number of screws, I'm not sure if I really need to remove all of them to get just the top off, it's usually the outside ones, I don't want to have to undo things that like hold the keybed in etc. It looks like you can just slip the keybed out but could be wrong I'm waitin to hear back from the Korg technician guy but getting impatient, am worried about all the knowbs, screen etc are they going to stay on the panel, i'll have another look at your video and maybe have another go.
@@AllamHouse Here's what I recorded with it on Sunday...czcams.com/video/54GOhk_Q3lk/video.html
Got to getting the keys off in the bottom octave where the notes stopped working, looking at the circuit path it looks they wander off in to the upper octaves and there is gunk in here that I have to clean, hopefully that will do it, apart from that the Kross 2 88 is fundamentally identical in key bed and everything else etc. except for the Korg logo and light at the back that splits off some of the back, wish me luck, I think I'v got this ! Yay, thanks for your video, I wouldn't have got enywhere near this stage without watchin what you did to this similar Korg Workstation. Where are my cotton buds, I've got the isopropyl...
Nope that didn't work, I'm going to have to work down or up and take the other octave off and have look. I thought that would fix it, it's usually been that with other keyboards I've fixed making dead notes...damn.
awesome video !!!!!!!!!
Thanks for the encouragement.
Dammnnn. Mine is having hammer sensitivity and I took it to get fixed and they said they fixed it but they didn't. So I'm thinking about opening mine up to see what's going on but damn. This looks very complex! Lol thanks for the video.
It’s not a horrible project, but does take patience and some technical ability.
Thanks :)
I'm glad you found the video helpful.
Just wondering if this would be similar internals to a Korg B1.
Cheers
Sorry to say that I am not sure. This is one of only two keyboards I've pulled apart. Good luck with your project.
Hi there thanks for the video Do you tink is the same key for krome 76 and for any note??
I assume the Korg Kroger 76 would be similar to the 88 I repaired in this video. You do have to select the right key as there are three different types I believe. All the black keys are one style, most the white keys were the same, but the F and B might have been different since they are next to another white key. Good luck on your repair.
Very helpful really thank you
ive been trying ti decide between a kronos, montage and a fantom. Keys on all the kronos models including ls seem to be very faulty
I wish I had insight to offer, but I’m mostly a trumpet player, drummer and sound tech. I helped a friend fix his board in this video, but that’s the extent of my experience with this board. Good luck with your search.
Could you help me reduce the noise of the keys possibly caused by a gap between the key and the hammer? when you play very softly on some of the krome keys, mainly with all the notes B, a plastic noise persists that when it was new did not exist. Thank you very much and excellent video.
I have heard of people having this type of issue before, but never had to fix it myself. There are little felt and/or rubber pads inside that seem to breakdown over time. You might be able to find some to replace, but my guess is they are built into the actual hammers. It’s worth following this video to take the board apart and investigate before ordering anything.
AllamHouse thank so much for your answer. If you discover something about this problem, please publish it.
Best regards
Rafael
AllamHouse Hi! I want to comment you that I discovered whay the key noise is produced. I disassembled same keys and I put better the grase, mainly in the white keys, an the noise was reduced significantly. Of course, the solution is temporary until the grase to be desplaced again.
Best regards
Rafael
Hey I have this exact Kong Krome 88 keyboard. My issue is with touch response. So when I touch the key softly, it plays loud as possible instead of quietly to match how hard I press the key. The physical structure of the key appears to be fine and in tact however I’m thinking it’s internal. Do you know what the issue may be or which part I may need to repair?
First I'll say that this is one of two keyboards I have ever worked on in my life so I have minimal knowledge. Also, this was a few years ago so I am going off of memory. I believe there is a sensor under the weighted hammer that senses the velocity and that will determine the output volume of the key. The troubleshooting I would do is...
1) See if I can inspect it for damage
2) Remove it if possible and swap it with another one close by to see if the problem stays on the same key or if it moves to the swapped key.
3) Once the problem is identified I would look to replace the part or move to a very end of the board (low or high) where you are less likely to use that key.
@@AllamHouse Dear Allam, I have a Krome 88 with the same problem of "MrLightning20.
As soon as I find the courage to open it, I will try my hand at repairing it. I think I need to replace the rubber contacts, where can they be found?
Thank you very much for your great support & a very useful video. Ciao, Ferdinando
I found my parts on eBay and there might be some links in the description of this video (most likely old by now) that might point you in the right direction.
Can you show me how to replace a middle g key on a Korg D1.... I will pay you ..
Thanks for this. I have 4 keys (Korg SP-280 but identical design internally) where the black rubber tips have come off. I was able to fix these with JB Weld Epoxy but it doesn't last. Today my replacement weights arrived and found your video. Great, but it left me with one big question: If the weights just pop in (as you showed) shouldn't they just "pop out" as well without taking the entire structure apart?
A ha! Found this further down the messages. Answered! Thanks again for the great video. From another message below: "@thebasementgourmet3344
1 year ago (edited)
Thanks to this video my Krome 88 is up to snuff again.
One thing I learned is you do not have to remove the long green circuit board 9:25 to remove the key weights.
It's a little tight but once you do one and know the angle/sweet spot they are easy to replace.
Parts is parts , is the best place for replacement parts."
I'm glad you found the video helpful and that you were able to find some answers from the community in the comment section.
@@AllamHouse It gets better. The weights were fine. The plastic bumpers had fallen off. I just popped them off the new weights and onto the old ones with a small touch of super strong glue to keep them in place. I had a tube of lube for some turntable repairs. Re- lubed the entire key set and closed it up. Works great.
Being a full time working musician, I went ahead and bought a new SP-280 (it’s that good). Maybe I’ll sell the older one. Maybe not.
I use krome 88.. the hammer and velocity keys have no problem at all.. but I just realized that the D# 4th octave and C# 5th octave black keys can be pulled up.. I only found out today.. but this doesn't cause any problems. at all in its application.. because of the position of the keyboard, it is still flat like a normal key.. I'm confused whether the default krome is like that or is there something that is a problem?
I’ll have to hope someone else can offer insight. This board I worked on in this video was one of two boards I’ve worked on. You could gently test some of the outward most keys to see how they act.
Quick question..if it's just the key itself and not the hammer that needs to be replaced...would u have to take the same measures with the disassembling part..or after the back is screwed off ..can I just replace the key from there
I assume you would still need to take the top cover off... which means you have to take the bottom off as well. Just keep track of the screws and you’ll be good.
@@AllamHouse ok thank you
Hi friends. Thanks for the video i understand so much more of my keyboard now.
Pls can you help me with something ?
My korg krome its fine but some keys sound louder
How can i fix it ?
I wish I knew more to help you out. This video you watched is the extent of the keyboard work I have ever done. Good luck with the troubleshooting and repair.
Hello sir. How were you able to determine which key replacement to purchase? I found one ebsite that offers 3 different replacement keys under a special number that doesn't reference the keys. Thank you so much
For the board I worked on in the video there were only two options that showed up in the search. One was for the white keys and one was for the black keys.
@clara what exactly is the issue with the keyboard? If its a weight issue, The weights are designated for different regions/zones of the keys and for black or white ones.
Hii...Mr, Allan, how to fix stuck key always fall inside on my keyboard korg kross 88?
I wish I had an answer for you. This one keyboard is the only one I’ve taken apart to this extent. Typically they have weights inside like the one in this video and the weight might need to be replaced. Good luck with the repair.
Hi, excellent video, excuse me sir, where did you buy or find de new key? Could you please help me with that information?
Thanks for reaching out. I’m pretty sure I had a link in the description of the video for where I bought the replacement units. Most likely from eBay, but check the description.
Hello, my question is the following: On the pages where they sell the spare part there are several models (style A, style B, etc.) Which one should I order for my Krome 88? Thanks!
When I play, one note comes out with not constant velocity.
When I record in MIDI, the velocity is often set to 127.
What part do I need and How can I fix it?
I wish I could help, but this video was the last keyboard I pulled apart. I am not a keyboard tech, I just helped a friend and recorded it.
Will this weight work on 61 key model? And if not can you please suggest me where to buy one for 61 key model , thanks in advance please reply ASAP , love from india
I am not a keyboard expert so take this information as you see fit. I assume the keys from a Korg Krome 88 would be the same on a Korg Krome 61. Most manufacturers tend to keep as many parts the same and just make a smaller platform to keep production costs down. Good Luck.
Where did you bought the parts
muanalarry I preferred the part off of eBay. There is a link to it in the description area of the video.
I have the same board , everything was fine but now the high "E" key is stuck in the up position and can not be pressed down and you get now sound out of that key , it's pretty much locked up
Could this be the key weight or just something jammed up?
My guess is that it IS worth taking apart and checking the weight. They tend to get brittle over time and even a small broken bit can cause an issue.
@@AllamHouse Hey , thanks for replying.
After watching this video about a dozen times, I think by the weekend I'll have the courage to open it up and take a look
Maybe I'll get lucky.
If not I have found replacement parts online
At least it's the highest E note on the keyboard not a total show stopper
It ended up that the rubber piece on the end of the weight tore and was stuck in bottom of the key causing it to jam.
Ended up replacing 3 octaves of keys and 4 key weights, and lubed everything up.
It plays like new now!
Thanks for sharing your findings. I’m also glad you got your board back up and running. Happy music making.
Are you still fixing keyboard? Several of my Krome 88 hammered keys, in the middle section, are giving me extremely high pitch when pressed down.
The board I fixed in this video was the las tone I’ve fixed. They tend to wear out their grease and might just need some more to be added.
@@AllamHouse i really don't know how to add grease, how much do you charge?
Sorry for the confusion. I do not work on keyboards. I happened to help a friend and made this video a few years back, but this isn’t something I do regularly. If you are not comfortable doing the repairs yourself, you would be best to find a musical instrument (or electronics) repair shop to complete your repairs.
Are you repair korg PA 600 There is problem with touch screen and where your address?
Thanks for reaching out. Unfortunately, I am not a repair shop. I made this video while I was helping a friend, but I am mostly a sound engineer. Good luck with with the repair of tour keyboard.
I’m trying to repair my korg m3 keys and lcd screen
Good luck with the repair. This was one of two boards I have fixed. I hope the video is helpful to you.
Hi sir I need help form u, I'm using korg krome 61 keys , now a days it's not working properly, while the system turning on mode it's Wil shows reverse image anytime so plz help me how to resolve this issue...... reply ur mail id
That is interesting. I’ll start by saying this keyboard was only the third one I have messed with and I have only dealt with broken hammers (weights) in my experience. Your issue sounds like it is either a bad connection or a bad screen. Both would require you to dismantle the board (similar to this video) and then diagnose. You can start by cleaning the connections and making sure it is sold (use contact cleaner). If you still have the issue then it’s time to work with your local small electronics person or just replace the screen. Good luck.
is changing the dc power inlet hard? I got the piece.I'm just a little intimidated opening it and putting the piece... The DC inlet connector is very frail.And a week design in this keyboard....@@AllamHouse
No more Korgs for me, it’ll take a year to get parts.. The technician even recommended burying it and buy something else!! Grrrr!!
sorry to hear this.
Mm hey 😘 I like ur shoulders.
Whered you order the parts btw
I picked up the parts on eBay. There should be a link in the description.
@@AllamHouse I saw that right after I added the comment, and ordered the part. I noticed that some of the other keys feel... kind of off, now? I have to take it apart again anyway :/ guess Ill see if I did something wrong. lol