EP-133 K.O.II Fader Fix
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- Опубликовано: 15 сен 2024
- Disclaimer: I do not suggest doing this fix you may damage it more and will void the warranty. This is how to fix the fader on your EP-133 K.O.II.
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EP-133 K.O.II is a 64 MB sampler and composer. just like its pocket-sized predecessor PO-33 K.O!, this sampler is a mighty contender on the stage, in the studio and in the ring. sample directly from your favorite source using the built in mic or 3.5 mm input jack,
sync and sequence your entire setup using sync and midi in/out. power it all with just 4x AAA batteries. make your next hit with punch-in effects 2.0™ then smash your beat with the built in distortion and FX.
#tutorial #fix #DIY #teardown
#KOII #EP133 #synth #sampler #pocketoperator #fix #bass #teenageengineering #tp7 #fieldrecorder #fieldrecording #newgear #sounddemo #demo #howto
It took some adult engineering to fix the teenage engineering
🤣🤣🤣🤣🤣🤣🤣🤣
Lool. Doesn’t look too complicated if you’re patient.
Quality. 😂
😂😭😂😭
This needs to stay top comment
Mine came busted. I just did this. I’ve never soldered in my life. Went to the hardware store and followed along. It’s working!! I’m so freaking stoked. Thanks so much for this video ✌🏻
No problem I'm glad you have a working unit.
Your journey into the unknown cannot be appreciated enough. Thanks for this!
Hell yeah! Videos like this blaze the trail for the right to repair! Companies will watch this and try to be cool by allowing customers to repair stuff themselves
I am a HUGE advocate for right to repair. I can't tell you all the stuff I've fixed over the years, laptops, gopros, mouses, and much more! Thanks for your comment brother.
Wow, that took some balls considering its brand new. Well done!
Someone's gotta go first I guess!
You did us all a huge service. Thank you brave soldier.
Brave *solder.
I'm mostly impressed by how incredibly little circuitry is in this thing.
exactly, looks to be only a handful of chips at most
It's probably the same as a regular pocket operator with a souped up os.
TE should thank you for this. I ordered my EP133 the day it was released but was already having some anxiety and buyers remorse that I’d get a broken unit. Was thinking of maybe cancelling. But even just knowing that if I had to I could fix it has put my mind at ease. Your video single-handedly earned TE a sale.
Lol personally I am staying far away from a new product that may immediately need repaired
TE most likely doesn’t want to acknowledge this video lol. When will people learn?
WOW! Cool. Nice work Decima1! Hey, I wanted to mention, there is probably a "Solderless Solution" here. I have used this method (trick) with misbehaving slider switches, and it probably could be utilized here, most likely also fixing the issue... So, to fix without soldering, we are going to improve contact of the slider by slightly deforming the top of the slider's metal casing - evenly on both sides. To do this, we would need a set of long needle nose pliers. On the end of one side of the pliers, you need to tape into place (using gaffers tap), a single BB, from a BB gun. This will be the contact point for bending down the exterior of the slider track. Then perhaps a clean Popsicle stick to protect the back side of the board from the other side of the pliers. What were are going to do is cave in slightly the housing of the slider evenly all along the track on both sides. Just a small amount is needed.! This will create a much tighter channel for the slider, provide downward pressure, and thus a far superior connection of the contacts. You will have to be careful not to crush the slider housing down too far or the slider will bind. If you eff it up, you can always then proceed as Decima1 is showing here - which is a much more professional fix, but you'll need to be comfortable with de-soldering a major component of the board. Great work Decima1!
Yea man. That sounds fun. Can you put up a video cuz we all newbies here!!! Bb n popsicle sticks ::::: we should have the right to repair!!!
YOU DID IT! ha!
dude i feel like we're living the same exact reality simultaneously!
Congrats man! you jus saved me the effort of making one myself :D
I actually found this video while searching to find if you posted your video yet 😂 and ya now you don't have to 🎉
Thanks man, I just fixed my fader 1 hour ago thanks to your video. Totally doable, and I'm definitely a soldering noob.
Finally the fader is working as it should, it came out of the box half-ass.
Shame on TE for this bad experience.
Thanx my dear, you rode in front and I followed...my fader is working again...thanks to you!!
the burp told me that I can trust you ;o)
This is how to fix the fader on your EP-133 K.O.II. Please sub if you found this interesting.
Isn't this basically new?
How much use did you get out of it before the fader died?
Do you think the suspicions were correct about the issue happening during the knob install? It looks like those pins could be pretty easy to bend and may just be too soft to handle any external loading.
@@matt-lang
100% looks that way to me.
Damn, this is much more entertaining than watching people make beats with KOII lol
They addressed the packaging issues with the unit in January. I just purchased one today, when I pick it up I will respond with my experience but plan on testing it in store first to be sure.
To stop this happening again after the repair, you ideally need to put a little plastic skirt of some kind on the base of the slider knob, to prevent the knob being able to push down too far towards the front plate (which in turn pushes down on the fader bending the two wipers).
I was thinking the same thing after looking at my tr-8s and its 11 faders
Ideally you need some kind of rubber "lips" to protect the case against any dust and particles falling inside. IMO it's a bigger evil and potentially can cause much more problems.
Yeah, that "spacer fix" may be a good thing too! You never know if somebody will try your gear and break it because you can't worry everybody.
Serious companies usually protect their faders (against dust) with "brush lips".
@@CycleSage faders on the TR are waaay better quality. They can take some rough handling.
Doesn't look like good quality if it broke after less than a week.
Dude, amazing. Way deeper than I would be tempted to go but I love your tenacity. What do they say? "God gives us the nuts but he does not crack them?" Glad you got it working again.
I feel like you're speedrunning EP-133 ownership lol
I don't think mine's even shipped yet and you've made almost a dozen videos including a repair guide.
Nice ass job, man. Very nice. When I suggested you take it apart, that was largely based on the vibes you gave off. I knew it was something you could do easily and, at the same time, educate others. You made me LOL at "10,000 screws." .... You also said something interesting, and that was, "custom key caps." I'm a PC gamer and very familiar with DIY custom keyboards, switches and keycaps. I am positive someone will release overpriced custom keycaps for this. I get mine on Tues and, super excited. I am hoping to hear my complex DnB tracks from you, Josh Wink energy level, Underworld, etc etc. You're my new fav EP133 KO 2 dude on here. Honestly, thank you for the content and the time and effort that takes.
Thanks for posting buddy, so I thought about what you said with connection. I pressed on the front of the case about where the screw would be located and lo and behold the speaker fired up. I’ll be taking it apart tonight to tighten the screws. Saved me from RMA Thanks bro
You sit did the right thing who knows when your get a replacement unit. Sometimes us creators have to take control and you did kudos to you and your channel here’s to you creating great muaic
Thank you so much for this I was so upset when my KO2 came with a broken fader but because of you I was able to fix it. So thank you!
I’m thinking there’s probably a better fader it can be swapped with …when I get mine, I’ll see if any of the spares I have match the specs, and if so, I’ll share the part number 🤓
Please do
Please!
Another great reason for me to wait 6 months. Thank you.
Man thanks so much! I had the same issue and after watching this video it made me wander if i could fix this without taking it apart. I managed to bend those contacts with a hair pin and now it works fine! Couldn't have done it without you disassembling the fader in the first place to show me what was what👍
This is awesome I'm glad!!!
No soldering required? I’m interested, my unit just arrived and the faders non responsive right out of the box, without trying to install knob lol.. really want to fix it but don’t have soldering equipment, and also don’t have any experience doing any soldering lol
That thing isn't even out yet and there is already a fix-vid up :D :D :D
Delighted that your brave step worked out! Thanks for showing us the solution, for the broken ones, and for those fearing the future. Tut tut TE.
Can't wait to see how a company with infamously poor customer service, is going to handle this mess.......?
So the fader was damaged due to too much pressure from attaching the fader's cap?
Great job on the repair and the video showing the process! Glad it was just a simple matter of bending the fader wiper strips back into place. I hope TE does some testing on this and upgrades the fader to a more robust slide potentiometer on future batches of the EP-133. I also hope they acknowledge that their user community did a lot of the work for them in identifying the issue and the repair. You deserve credit from both us in the EP-133 community and definitely from TE themselves. They owe you big time for this manufacturing defect not becoming a full-blown scandal. You may have saved TE some face on this matter. Send DECIMA1 some good stuff TE! He's the hero you deserve!
That board is huuuge, and mostly bare. I don't know why I expected anything else, with how everything's placed. But come on, you get 5 times the circuit board for 3 times the price of the original ko :))
The fader looks cheap, but it's a standard part, easy to replace (maybe upgrade) if it does completely fail.
I love how they implemented the screen - two dozen leds on the main board and colored plastic front - makes sense since they're just function indicator lights. The three character display is custom, or at least I haven't seen that segment arrangement anywhere else.
I can buy the thing with some confidence now. Thanks!
It broke already?
wtf. it’s been out for like 2 days
Yup probably from pushing in that ridiculously tight knob. Happy you fix it!
Damn already? This just came out
I haven’t received mine yet but wonder if you think holding the fader post with needle nose pliers and applying equal counter pressure when installing/pushing the fader knob on might be a good preventative measure? Any thoughts?
Maybe the tiniest bit of lube too, just to reduce friction?
Already broken?
Yeah!!!! Thanks for risking it and sharing! So glad you were able to fix the unit :)
Best DIY i've seen in awhile 😂😂
It looks like it could be easily avoidable if it would come with a knob preinstalled in the factory. The knob is sticking outside the rail, so it should protect the fader from being pushed down too much. At least, I hope it will work this way. If not, then it's a significant design flaw. Still, I don't feel comfortable with my purchase. I hope they will freeze the shipping and solve the problem before they ship another batch.
Ha! I knew you were gonna end up DIY on the fader, cos that's so frustrating to pay hundreds of dollars for something that doesn't work, even if you get warranty repairs offered. Well done man. Exactly what I would have done, and now people know that it's time consuming, but not dangerous, to open the case up and adjust some contacts. You'll probably have to do it more than once, might as well get some practise in now!
thank you so much for making this video, saved me from sending my unit back... and made me learn how to solder.
Its a good skill to have
I played my part , digging into various places, bringing ideas together. Very glad its working out. Phew
I hope TE are on the phone saying thank you...great vid.
thank u man! this makes me less anxious about the issue 🙌
Thanks for taking one for the team . . .
You need one of those little wowstick screwdrivers for jobs like this, just insert and press and the screw is out in seconds.
I should get one!
@@DECIMA1 They're great for putting the screws back in too : ) super quick, and they won't over torque the screw (and put little hairline cracks into your PCB).
Nice work. Valuable information you provided with your perilous journey
My fader broke due to the cap installation on day one (happy Christmas surprise!) I connected with TE helpdesk and they offered a return label. Due to the same reasoning as in the video, I decided to perform a repair myself. I succeeded after some trouble in desoldering the fader unit. Now I'm waiting for TE's response on how to put on the fader cap again without risking another fail
Do not install the fader cap, use a piece of lego instead
You’re a hero. Well done. It was hard to see the pins. Did some pins get pushed back when you pushed the button onto the slider or were the pins UNDER the mechanism? 😊The BURP was priceless.😊
That's exact same position I sit while I do electronics 😂
Yeah, not going to buy something that breaks almost immediately.
I'm proud of you son.
So you posted the part and it ready B100k. Bourns 100k sliding potentiometer?
I can't find one where the black plastic piece matches perfectly. Anyone else find the exact part yet??
Way to go man. Looks like there were s few challenges, but you pushed through. Congratulations. You seem to really be learning the box quickly. Thanks for sharing the repair. I saw a cool fx demo from someone else. Can we get an fx demo?
Now since my slider works im d
It sucks that it broke but I'm super impressed that it's a metal quasi-user-serviceable slider thingy in there! Now I'm a lot more excited that mine is showing up tomorrow. 😂
Add an aftermarket fader, aftermarket memory, aftermarket buttons, ... to make it great. End up with double it's original price. Just like those portable turntables 😅. I expect a modding community for this thing pretty soon.
Mine showed up with broken fader, broken speaker (*have to squeeze it to get sound) and broken mic jack/line in jack. Cray cray. Printing your new fader knob now... (THANKS)
just thought i’d add that my ep133 arrived today w/ a broken fader, so i guess im in the club. also found out bboy tech report’s also had a broken fader.
Just want everyone that tries to fix it them selves and worried about voiding their warranty. Get familiar with the Magnuson-Moss Warranty Act, 🤙
Wow the gear just comes out and already tuto to fix broken piece?
Weird gear quality
Awesome, appreciate you walking through this!
From my experience with dodgy pots and faders it's always better to just replace them with ne ones as any repair is likely to fail again after some time and you really only wanna open the plastic latches on such casings and desolder the pcb so many times.
This is amazing! Hopefully TE sees this (and *doesn't* nuke the video).
wow i'm not going to do this but i'm curious how this didn't pass QA, it seems like the prongs are the only thing holding the fader up
Making it happen! Nice work.
is the bend pins from too much pressure on the slider from placing the knobs on or during transit? or just a cheap part?
I think its from installing the button and or tranist some peoples sliders were not working without putting the button on
I've a feeling it's a combination of both.
I think it is a combination of the packaging being about 2 mm too thin and also the force required to put the cap. I got mine today and even before taking the cellophane off the box I noticed the slight protusions on the box cover where the stems of fhe potentiometers and fader are. This means that the box was probably in a large stack of boxes and the weight of the boxes on top put presure on the flimsy packaging. On the inside the ink rubbed off onto the box on the pressure points. Then the cap itself does not fit without applying considerable pressure. All of this is a recipe for failure. TE droped the ball on the packaging and the cap. So far, my slider is working, but I'm almost afraid to touch it, which is silly.
I noticed this exact same thing, ink rubbed off onto the box and I suspect its because of the packaging too. RMA'd it but im dreading the exchange time it could be a while before i see a replacement
Thanks! First look at the unit I thought that fader is going bust one day. The soft case is out.
The thing is a week on the market....how can it already be broken? That's a shame. Nevertheless, good work (from you)
Hey i have a question! My screen visor is kinda bent and im wondering if theres a safe way to „detach” the screen visor and try to install it correctly. Do you might know if i have to disassemble the whole unit to do so?
What would you say about the overall durability of the whole unit? Thank you for doing this. Did you by chance scan the board while it was open? Be nice to be able to refer to it and it's part numbers.
Once the board is exposed you can see the Pocket operator at the top right.... hehehe
Why are we replacing the fader? My EP-133's fader is fine, is there a thing where they are showing up broken?
It's just weird with the opz double trigger buttons, bending of unit encoders fall out i dont get why they use all the lego parts that fall off. just make it all put together i mean if we had to pay 500- 800 but the unit was metal and solid i think as long as it not 2k people would . anyways great info for the community Glad you fixed it nice work hopefully that's the last issue .
What's the board thickness? Did you take any pictures of the PCB?
Reminiscent of the pots on the po's.
Thank you for taking the plunge!!!!
Thanks so much for demonstrating the fix! Still wonder how many of these sliders are getting crushed under the weight of heavier packages during shipping and how many are just failing due to the design of the slider knob requiring so much pressure to install it. When mine arrives I'm going to first put the slider through some tests without the knob to make sure it wasn't damaged in shipping. If no problems there then I'll see if it feels like it's going to take a lot of pressure to put the knob on. If it does, then I'm thinking I might try using a Dremel to take a little bit off the thickness of the top few mm of the metal slider post. Just enough to let the knob fit snugly but without needing a lot of pressure to push it on. I'll probably have to poke the slider post through a big sheet of plastic film first to make sure I don't get any metal dust flying into the rest of the unit but I'm hoping that does the trick without having to deal with a warranty issue or risk voiding the warranty by opening the unit.
Watch my newest video
2 days in and the fader breaks...yikes!
Bruh, ya'll just got these things...
HE FUCKING DID IT!
just got mine , didn't put on knob, first thing I checked and it don't work right. with a little pressure it works but when letting off it levels jumps around :( Thanks for the video
update ..I did the same and for now at least its fixed quite the pain in the as though.
What processor does this thing use?
Interesting! I was curious if that display was an oled made to look like a VFD or how they obtained that retro look. This thing looks like a credit card reader from the 1980's. Rare to see a teardown this soon! Thanks!
I don't know why TE doesn't ship the device with the knobs already fitted. The slider one, in particular, seemed very difficult to apply, and it is the required pressure that is likely to have bent the contacts.
For some reason I cannot get the solder to melt :(
those slide pots are notorious for being finnicky and not lasting long. its such a simple mechanical fix that its a shame you have to desoldier and dissasamble just to bend the contact pins back. It would be a cool mod to just replace it with a regular potentiometer and slap a big knob on it in the sliders place.
Did you happen to see if the memory could be expanded like the Boss RC505 inside the unit?
I have a new problem, my Ko 2 even has the wrong button installed. If you want to make a video about it or a very short one, I'll be happy to send you a picture.
Please send me a photo decima1musician@gmail.com
I sent one if the quality is too bad I'll make a better one.
@@wilhelmknoche1451 the image quality is fine thanks!!
There is also a chance to get some pressure issue with the "ENTER" key. Just got mine and the fader didn't work, as well as the screen didn't show anything, but 30-39 number all the time, related to the pressure around or on the "ENTER" key :(
Same did you tried this fix and did this also fix that issue?
Do you remember the name of the 3 main chips ? if I remember correctly, PO was based on ESP32
it has low profile cherry-style keyswitches, interresting.
it's called a desoldering pump :) Nice work repairing it yourself, surely loads faster than waiting on them.
I wonder if they would have warranty-repaired this? Or tell you they don't have replacements to send you. Outside of warranty TE would absolutely charge you $150 to repair that I bet lol. They quoted me $125 to replace a $20 battery in my OP-1 and would not ship me one due to airplanes and raw lithium batteries. I also had to ship it there and back at my expense.
I used the $20 battery and got more capacity, but I digress XD
Desoldering pump or solder sucker
@@micknorthyard815 I forgot solder sucker. and de... FML.
@@Emily_M81 A beloved tool has many names 🙂
I filed the inside of the fader knob so it slides in easier. is that safe to do?
Hey buddy love your vids. I need to fix my speaker, my Fader is fine. If I twist the unit slightly the speaker kicks on for a second. Did you happen to see if the speaker uses these same kind of pins? I was thinking solder on the contact points would do it of the speaker as long as I don't bridge the points.
It is pretty wild that there are already repair videos coming out for this unit, but at least it didn't cost $2,000 and then show up broken.
Hey Decima1, are those red/orange switches swappable?
ALREADY😮😢...I might have to wait before ordering
Nice job on fixing it. I'd have done the same. Any excuse to get the soldering iron out! Seems strange the knobs aren't pre-fitted. It looks like the pressure needed to fit the slider knob is bending the prongs in the fader so they no longer make contact with the track. They either need to redesign that or install the fader knob before shipping. But if they don't redesign it or use a better quality part, any knock on the fader knob will potentially bend the prongs.
good day, what type of keys inside? thanks