There's no chance of me fixing my Triton LE screen ;) but that was awesome to just chill and watch someone who does know what they’re doing (or works it out) cheers buddy!
Thanks for this Markus. I'm working on a Roland E-600 after repairing the SMPS, I've found there's no backlight on the display. Your video gives me the needed encouragement to go ahead and try to fix it.
Thanks for the tutorial. I recently bought a Yamaha DM-2000 at a low price. Good condition except for dead backlight. I repaired it using your tutorial and it works great now. Much better than spending 500 dollars on a replacement LCD module.
Your knowledge on repairs is beyond me, I've been stuck out of Australia for over 2 years due to the covid travel restrictions, finally got my Yamaha psr 660 out of storage and the led display very faded. I thought oh no... watched you video and 5 minutes in I thought I'd never be able to do what you are doing... but you did manage to find a way to fix the issue just after you'd put everything back together - the moment 90% into the video you said adjust the contrast the aha moment hit me! There was the issue with my display, contrast needed to be adjusted with the simple knob at the rear of the keyboard!!!! Thank you. Loved watching the video and you're a genius removing all the boards and creating an led lighting set-up. Thank goodness I didn't attempt all that. Thanks.
I'm so happy I stumbled onto your channel some years back. I really enjoy seeing your work and your methods of problem solving are inspiring. Thank you for creating content.
Hey Markus, I'm a new subscriber on the strength of this video. My son is a composer and he really likes using the old M-Audio Keystation 88 keyboards. We have 3 and two of them have their blue backlights dead and the third is on its way. You have shown me how to get them back and even change their color. I'm currently replacing the worn out USB2 socket on one of them so I think I'll dig a little deeper and deal with the display. Thank you so much for leading the way.
I use small 'blobs' of a product called 'SHOE-GOO' (rubber repair' to hold down wires / put a little blob down, press the wires or ribbon cable into it - then a wee bit of masking tape over top until the rubber cement is set (5 minutes)...GREAT video...thank you...I have several elderly Yamaha's that potentially can benefit from your expertise!
I was able to replace the original backlight with a Harbor Freight flashlight's 5V LED strip and it's 100 ohm resistor. It is on and super bright now (maybe too bright). Thanks again for your video. (I strongly suggest downloading the free repair manual -- its excellent step-by-step details match the procedure Mark did here, also putting the many screws in a labeled 2-week pill box will remove any confusion on reassembly).
Excellent! Simply priceless!!! Thank you so much. I've been flirting with the same idea for some time now and you just confirmed that this is doable. I have a Roland VS 1680, a Roland MV-30, a Roland RA-800 and a Korg 01/W FD. I have had so much fun with these devices which sadly came to the end of the road due to display issues. Now I will blow a new life into all of them thanks to you. God Bless you my friend. Thank you so much 👍👍👍
sorry to be so offtopic but does any of you know a trick to log back into an instagram account? I was stupid forgot my account password. I would appreciate any help you can offer me!
@Kylo Kingsley thanks so much for your reply. I found the site on google and I'm trying it out now. Seems to take quite some time so I will reply here later with my results.
Noted the comment way down about not needing the 'caps' - I rather concur - since the 12 circuit on the board is likely nicely 'smoothed' out, anyway...but great video - you're VERY thorough!
Great stuff Markus! Nice fix! I did something similar with a MOTU 828 I got for €70 - one standard led (and appropriate resistor) pointed sideways at the screen and shes legible and usable again!
Thats great to hear mCKENIC. I have repaired quite a lot of the old 2 line text displays that use the electroluminescent strip under the panel, just one bright LED and a strip of white paper or plastic seems to be enough to scatter the light nicely.
I 'fixed' the LCD backlight with the 'cheapo' LEDs from some mini Christmas light sets from the local 'cheap store'...and for the power supply, I reused the guts out of a small power supply I had...The PSR-3000 is one of the BEST YAMAHA keyboards ever made...I have newer ones, but use the PSR-3000 EVERY WEEK at the church where I play!
Hi Marshal, If I lived a little closer I would have a look at it for you but I am a mere 6000 miles away. good luck with your move I lookforward to watching your synthe video’s .
@@markusfuller wait, you haven't invented a teleporter yet? 😀 Thanks Markus, hey no sweat, always enjoy watching your repair vids! They will keep me occupied while my gear is packed away!
Hi Enjoyed the video, could I ask if you know the specific type of ccfl tube that is needed or the voltage operating range, i see some on line but not sure of what one to use thanks
A very nice job well done. For that purpose you can purchase LED stripes on AliExpress "LED stripes for monitor backlight" for just a few quid. The ones I bought were 7 EUR and since they are meant to fit a 17" monitor I still have the cut pieces laying around. The displays I resurrect are not in as good shape as that Yamaha one. The plastic around the CCFL is usually degraded to flakes and totally gone. And since the liquid crystal in the display is also going I am faced with a total replacement and FPGA bases converters....Dunno if I want to spend that time.
@@markusfuller Oh I should have mentioned that those AliExpress LED light stripes are very narrow, like half the width of the reel type. Just a bit wider than the CCFL. So cutting them would not be necessary. However that was a very good idea and I didn't know that the layout makes that even possible. Looking forward to your next car boot sale item :)
Chip Guy Vids Thanks for that information. I should have a look on aliexpress again as i have not been on there for a long time and somethimes theres some interesting gadgets.
I have a copyright claim from The Orchard Music on behalf of Comedy Central Records claiming that Yamaha's built in demo tune played at the end of the video belongs to them. I think I may have to contact Yamaha about this.
That is shocking Mark with all the good work you do also promoting Yamaha in your video. I cant imagine Yamaha putting a track on their synth without having paid a license for the track in the first place. It is always the management and not the artist that goes after copyright. Unfortunately youtube Algorithm is dumb I have published music on routenote and uploaded the same track onto youtube only to get a copyright strike on my own music from youtube. So i got them told and white walled my music so i cant get any mor copyright strikes. But i dont put music on youtube now anyway as streaming is giving music away for free. Like Gary newman complained one song streamed 1 million times made him £37
Great job! Best way to fix is to improve at the same time. Not sure why you need the caps if you are starting with 12VDC off of another regulator, not off a bridge from an AC source. One would assume the internal 12VDC buss is pretty smooth to begin with.
Yes you are right the 12 volt source will be pretty smooth already but I guess Im so use to using these with caps that I just went ahead and included them as a matter of usual practice.
Nice fix...I did a similar fix on my Alesis fusion, ccfl tube had gone, I disconnected the inverter and popped in some led strip, found 12v and she is as good as new.
Yes the diode trick is cool, never gave that a thought although I should have guessed as they are used as detectors in AM radios lol. I had such a big smile on my face when you turned it on and it lit up for you and looked no different to its original function I guess :D Really glad it turned out good :D I have the reverse problem with an LED backlit PC monitor, I only had it a few months from new and the backlight has stopped working completely. I am still looking for a fix as I dont want to damage the screen if I go inside it. The monitor is passed it's warranty. I also want to retrofit LED to my old Iiyama 1024x768 monitor which is CCFL but still works though the colour has turned a warm sunset when in use. That monitor is years old lol but I still use it with a Socket A PC that has all my music software and keyboard drivers on it, also my midi files are on there and I havent switched it on in a few years as I want to clone the drives before anything happens to them.. Just havent got round to it lol Thanks for a great tutorial :D
I've watched many of your videos and especially enjoy the "keyboard that's ok apart from one thing that renders it unusable" fixes. In all of those I've not been too concerned about getting it apart and then back together again. This one however gave me the heebie heebie with that display buried away in there and all those connectors! Glad you met with such success. Please tell us why lowering voltage with resistors is not best practice. I mean if the 12v comes off a regulator, dropping it with resistors would be stable enough? Or is there more to it? Love your work.😀
To lower it you need to do a voltage divider, which could dissipate too much power and maybe even break the main power regulator. Well, in the practice you could do that and get the thing working but using another regulator is way more elegant. Anyway I would love Markus to confirm that
There's a solid chunk of transparent plastic behind the LCD that distributes the light, called the lightguide. The back surface of it would be mirrored or have mirror foil behind it, the display-facing side is transparent. Look up Total Internal Reflection - when you side fire directional light into a thin slab of material like this, the geometry and angles work out such, that almost all of the light will not come out directly out of the display facing side of the lightguide, but will be reflected again back into the lightguide, and several times more. The surface has to be extremely smooth. The light is mostly trapped in there and could be bouncing around the lightguide numerous times before it can find its way out, and this is the primary mechanism how even backlight spread with edge lighting is achieved. They can further optimise the properties. To reduce the light bouncing, they can etch a bumpy surface texture into microscopic dots on the surface, taking up about 1/10th of the area or less, with the rest being smooth, and on these dots, the light will more likely come out of the plastic than get reflected back in, and when it does get reflected back in, it's more diffused. The reduction of bouncing improves efficiency, since the plastic has some light absorption. It's also possible to vary the size of the dots across the surface to compensate some residual unevenness, but i don't think this is common. Then they layer several plastic diffusion sheets on top of the lightguide, to hide and diffuse the bright dots. The lightguide can be straight or it can be slightly wedge shaped, i think the best shape is determined based on experience and experimentally. Brightness control? Devices with small screens like these usually simply don't have one, but if there is, it can be connected - but that requires some engineering, starting with finding the DTC (dead time control) line and scoping it out, whether it's PWM, or whether it's voltage based, whether it's inverted. If it's PWM, you can simply insert an N-channel mosfet into the ground line of the LED strip and drive it from DTC. It may be necessary to use a logic NOT circuit, for example a single-transistor inverter.
Sweet! And about your diode "signal tracer", would it detect low current signals as well? I was given a Novation Xio synth that is defective, it doesn't load the OS, can't be detected by a PC's USB bus so I am thinking about finding where the problem is through signal tracing. I only have the schematics to help.
Hi there are special signal probes for oscilloscopes that have signal amplifiers built in but they are very expensive. but to be honest if your scope can go to very low signals i guess it could be possible to do the diode trick though i have normally only done this when sniffing for signals in high current signals. i must try it out and see how low i can go.
Hello Markusfuller, I have a Roland G 1000 and it is developing a problem with the LCD display in that the colour is fading from blue to a yellow brown and can hardly read it, it is strange that if I lean back I can see that the writing looks normal but leaning forward when I want to edit it looks pale I can hardly make it out, maybe it is only the light or something more serious, upon looking around to try to find a part for it I stumbled on your site, you know so much about the keyboards and you said you have a lot of them around I thought I would trouble you for some advice or you may have a part very willing to pay of course, as I can't a find a part anywhere and I am feeling sad that if the light goes out that's it, otherwise the keyboard is in great condition as I have looked after it with service etc. I am wondering if you can help as to whether you may stumble on a part for the Roland G1000 or if there is a generic or if another model can act as replacement, I also contacted Roland Corp with bad news as to a replacement, your help would be greatly appreciated hoping my request is not too much trouble await your reply Kind regards Noeline
hello excellent work! I have a PSR 9000 LCD screen by default color yellow and blue I would like to replace yellow with blue to have yellow and blue or paint the LEDs blue to have less yellow or cover the LEDs with a blue plastic belt or reduce the voltage to have less yellow view the photo What do you recommend ? THANK YOU !
Hello Markusfuller, in further reference to my question below, that if the LCD on the Roland G1000 goes out I am wondering if you know would he keyboard work in general e.g. piano arranger section await your reply with thanks Kind Regards Noeline
Hi Marcus, i have a question for you. If i wanna change old CCFL backlight to led i need just a led strip and voltage that will power them up ? If Led strip will be for 9 volts like your i need to just connect it somewhere where it will get 9volts ye? Greate video bro
Hi Markus! Great video and detailed explanation, thank you a lot! I've a question, I've a similar issue in a PSR S700, I'm not sure if is it about the CCFL or the inverter board. I discovered a seamless led strip that works at 5V dc... The inverter board of this keyboard have an 5v entry, so, could I connect directly the 5v led strip and remove the original inverter board? Thank you in advance, cheers!!!
Hello. When you say your keyboard has a 5volt entry do you mean it is powered by USB cable ?. I am only guessing but if you do have a 5volt entry point then yes you should be able to run some LEDs from it and place those LEDs as a backlight for the screen. I would test the strip of leds on that 5volt entry for a little while and make sure the keyboard functions correctly before doing all the work of exchanging the backlight just so you know it will work without causing problems. good luck
@@markusfuller Hello! Isn't an USB entry, I'm referring to the internal connector that gives power to the S700's inverter board (Yamaha's part INV X8085) -> in DC 5V from other internal board out to CCFL-> Anyway, I ordered a new CCFL lamp, if this not works I will try the LED solution :) Thank you a lot! Cheers!
@@BitsAndTips oh sorry for the confusion I though you had a usb port as that would also be 5volts. but if the invertor says 5volt then yes try that if your new cfl does not work. though it should.
@@markusfuller Don't worry, my description may be confused. Yes, the service manual says 5V. The "easy" solution is replace the lamp but when it started to fail a little burning smell was coming. I don't viewed any burned component.I hope that all will be ok :) Thank you very much!
Hi, Markus in my display of my old Gem WK4 brand keyboard (similar to the yamaha PSR 3000 in the video) I did a similar job but you can see some transversal blue lines, the display works but I wanted to know what it depends on and if a solution is possible . A thousand thanks.
Hi Ricky. I have a WK4 here with a blue display and nothing displayed on it. waiting for a repair but I am working full time now and find it hard to make time to make new videos.
Great find and brilliant repair! I love those LED strips. I usually run them on a 9-volt battery! That keyboard sounds amazing too, of course, their demo would show it off in the best way. Would love to hear you play one of your original compositions on it though. Thanks for teh instructions about the little dropping circuit board. Very informative! Best wishes to you.
@@markusfuller This is one of the best mid-range arrangers that Yamaha made. The sound quality was wonderful and also the build quality and buttons. Now they come with squishy rubber buttons, but the PSR3000 has hard plastic ones which were very responsive. My keyboard had the same backlight issue and i got it fixed. Not sure what they did to fix it, but I could see it dimming out again so I had to sell it off quickly. If only I had found this video earlier. A majority of PSR3000 keyboards have had display issues. I guess the display was the weak link in this model. Thanks for the great fix and for sharing it here. Could you perhaps add Yamaha PSR 3000 in the title so it's easier to find this video for those who want to fix this lovely keyboard and have fun playing it for a lot many years?
Markus I have a Yamaha AR100 organ which is in perfect condition with the exception that the display can no longer be adjusted - it is very dark. Do you have any suggestions as to where I may get a new display?
Hello Joseph. I think the ar100 uses the same display as the yamaha QY-700 (though not certain). I really do not know where you could find a replacement. has the backlight stopped working or is it just so dark that you cannot adjust the contrast. ie it is dark but you can see there is light from behind ?.
Markus the backlight is either very dark or very light and does not work well with the contrast button. I am considering purchasing a Yamaha Genos keyboard but at the same time I don't want to give up on the AR100 just because of the display.
@@josephkurcon1736 Hmm I do not think it is the actual backlight that is the problem here. I think there may be a fault with the LCD contrast control. maybe. The Genos is an amazing machine we have one ourselves.
@@markusfuller Markus, a person in the UK had the same problem with the AR100 display and advised that leaking electrolytic capacitor were the problem and solved the problem when he replaced the capacitors. Do your think that would work for the AR100?
@@josephkurcon1736 Hi Joseph, If the capacitors are leaking then they will need replacing but if they are OK then the problem may be something else. sorry I cannot be more specific but theres so many things that can go wrong.
I have a similar issue with my Korg Triton LE the lighting has been fading over time. Is it similar in design? tnx good information The lighting looks like it only coming from the side, pretty dim
Hello William. the Triton LE does not use these old style tube lights but instead uses LED , it will only be lit from one side so you may see more light on the left than on the right. but it should not get dimmer light over time as normally LEDs either work fully or not at all. I’m not sure as I do not own the triton LE but there may be some setting within the menu to control the brightness.
@@markusfuller there is a contrast control , Ive mucked around with . The display has not been a strong feature not on this lower end triton, the better ones have a nice bright touch display tnx for replying!
William Davidson Hi William yes I had the triton studio for a while and they had good screens but I sold it . wish I had not done that now as it was a good keyboard.
@@markusfuller thank you so much ! I have the same model keyboard lcd is damaged, i was planing to remove it and replace with 4inch lcd , then i should not take the risk
Dear Mark, I have a PSR 5700 Keyboard by Yamaha with a LCD screen display is lighting up but not able to read. Is there a replacement part for that I am trying to find on ebay but no luck. Someone else told me that it could be the capacitors for the LCD....The keyboard works fine just cannot read my parameters. What should I do?
There's no chance of me fixing my Triton LE screen ;) but that was awesome to just chill and watch someone who does know what they’re doing (or works it out) cheers buddy!
Thanks for this Markus. I'm working on a Roland E-600 after repairing the SMPS, I've found there's no backlight on the display. Your video gives me the needed encouragement to go ahead and try to fix it.
Thanks for the tutorial. I recently bought a Yamaha DM-2000 at a low price. Good condition except for dead backlight. I repaired it using your tutorial and it works great now. Much better than spending 500 dollars on a replacement LCD module.
Thank you Mick. $500 dollars is way too much for a replacement module.
Your knowledge on repairs is beyond me, I've been stuck out of Australia for over 2 years due to the covid travel restrictions, finally got my Yamaha psr 660 out of storage and the led display very faded. I thought oh no... watched you video and 5 minutes in I thought I'd never be able to do what you are doing... but you did manage to find a way to fix the issue just after you'd put everything back together - the moment 90% into the video you said adjust the contrast the aha moment hit me! There was the issue with my display, contrast needed to be adjusted with the simple knob at the rear of the keyboard!!!! Thank you. Loved watching the video and you're a genius removing all the boards and creating an led lighting set-up. Thank goodness I didn't attempt all that. Thanks.
I'm so happy I stumbled onto your channel some years back. I really enjoy seeing your work and your methods of problem solving are inspiring. Thank you for creating content.
Hey Markus, I'm a new subscriber on the strength of this video. My son is a composer and he really likes using the old M-Audio Keystation 88 keyboards. We have 3 and two of them have their blue backlights dead and the third is on its way. You have shown me how to get them back and even change their color. I'm currently replacing the worn out USB2 socket on one of them so I think I'll dig a little deeper and deal with the display. Thank you so much for leading the way.
the signal sniffer is brilliant. subbed. now to fix the display on my Yamaha DJX.
I had a DJX a few years ago I really liked it.
I use small 'blobs' of a product called 'SHOE-GOO' (rubber repair' to hold down wires / put a little blob down, press the wires or ribbon cable into it - then a wee bit of masking tape over top until the rubber cement is set (5 minutes)...GREAT video...thank you...I have several elderly Yamaha's that potentially can benefit from your expertise!
I was able to replace the original backlight with a Harbor Freight flashlight's 5V LED strip and it's 100 ohm resistor. It is on and super bright now (maybe too bright). Thanks again for your video. (I strongly suggest downloading the free repair manual -- its excellent step-by-step details match the procedure Mark did here, also putting the many screws in a labeled 2-week pill box will remove any confusion on reassembly).
You are the Bob Ross of electronic music, awesome.
Love watching your videos, not sure why but they're relaxing and retain my interest. Don't stop!
Thank you, I really do appreciate every viewer.
Hi Sir I just want to ask you are you from UK???
Extraordinary work! You have such knowledge and inventiveness - I'm in awe!
Excellent! Simply priceless!!! Thank you so much. I've been flirting with the same idea for some time now and you just confirmed that this is doable. I have a Roland VS 1680, a Roland MV-30, a Roland RA-800 and a Korg 01/W FD. I have had so much fun with these devices which sadly came to the end of the road due to display issues. Now I will blow a new life into all of them thanks to you. God Bless you my friend. Thank you so much 👍👍👍
The explanation of the voltage regulator at 17 minutes plus was excellent, love your videos Markus.
sorry to be so offtopic but does any of you know a trick to log back into an instagram account?
I was stupid forgot my account password. I would appreciate any help you can offer me!
@Larry Elisha instablaster =)
@Kylo Kingsley thanks so much for your reply. I found the site on google and I'm trying it out now.
Seems to take quite some time so I will reply here later with my results.
@Kylo Kingsley it did the trick and I finally got access to my account again. Im so happy!
Thank you so much, you saved my ass :D
@Larry Elisha glad I could help :D
Man... How smart a move... It's been such an original and creative way to go, Markus... 😵
Noted the comment way down about not needing the 'caps' - I rather concur - since the 12 circuit on the board is likely nicely 'smoothed' out, anyway...but great video - you're VERY thorough!
Really enjoyed that video. Your stress free approach to electronics repair is awesome. Looking forward to more vids.
Superb Mark, Just spotted this now. I have a Yamaha EL90 with same problem, I am going to have a go at. This gives people great ideas, thank you.
Great stuff Markus! Nice fix! I did something similar with a MOTU 828 I got for €70 - one standard led (and appropriate resistor) pointed sideways at the screen and shes legible and usable again!
Thats great to hear mCKENIC. I have repaired quite a lot of the old 2 line text displays that use the electroluminescent strip under the panel, just one bright LED and a strip of white paper or plastic seems to be enough to scatter the light nicely.
Thanks for sharing details about the 7809 - you explain things like that very clearly for beginners like me!
Thank you Patrick.
I 'fixed' the LCD backlight with the 'cheapo' LEDs from some mini Christmas light sets from the local 'cheap store'...and for the power supply, I reused the guts out of a small power supply I had...The PSR-3000 is one of the BEST YAMAHA keyboards ever made...I have newer ones, but use the PSR-3000 EVERY WEEK at the church where I play!
Congrats on the re-light work. I can see... well, hear why you'd want to salvage that particular keyboard. Thanks for the video.
Thanks Thomas, the sounds in this keyboard are far better than I thought they would be. Jason has already claimed it for his keyboard collection.
LOL. I figured he might do. :)
ThomasGrillo Yes like he needs another keyboard LOL. actually I think he is going to use it to make sound sets for his yamaha styles packs.
Great insightful video. You kept it really simple.
You are a genius @markusfuller! I love your work and respect your expertise. Kudos!👍👍
just amazing and the level of detail .. great job
it would be nice to demonstrate how you find the 12V on the board securely.
nicely done sir ...you have a subscriber im a musician myself and this is a great help thank you so much for sharing this ....
Thank you very much
Thanks buddy, keep up the good job, good luck !
A true magic show. Genius, Markus.
Great video!!! Can you tell me if you have COB LED strip 12V and 5W. Do you still need a regulator or can you hook it direct to 12V?
Excellent fix Marcus. Love the diode probe.
A very nice solution! Still needing to get my JD990 screen issue sorted, but will have to wait till after the move.
Hi Marshal, If I lived a little closer I would have a look at it for you but I am a mere 6000 miles away. good luck with your move I lookforward to watching your synthe video’s .
@@markusfuller wait, you haven't invented a teleporter yet? 😀 Thanks Markus, hey no sweat, always enjoy watching your repair vids! They will keep me occupied while my gear is packed away!
Markus i'm only 18 mins in and already i've liked your video as they are always excellent
much appreciated Cyberdyne Systems :-)
Hi
Enjoyed the video, could I ask if you know the specific type of ccfl tube that is needed or the voltage operating range, i see some on line but not sure of what one to use
thanks
Only one word to discrib: Wondeful. Great job and thank you for sharing.
Thank you Thomas
Thanks you so much sir I'm really glad watching your video
Because I have same problem with my keyboard psr-s900
Again Thanks to you...............
A very nice job well done. For that purpose you can purchase LED stripes on AliExpress "LED stripes for monitor backlight" for just a few quid. The ones I bought were 7 EUR and since they are meant to fit a 17" monitor I still have the cut pieces laying around. The displays I resurrect are not in as good shape as that Yamaha one. The plastic around the CCFL is usually degraded to flakes and totally gone. And since the liquid crystal in the display is also going I am faced with a total replacement and FPGA bases converters....Dunno if I want to spend that time.
I too have many metres of the led strip, It’s so useful for many jobs, I’m pleased this was an easy fix (apart from the time it took)
@@markusfuller Oh I should have mentioned that those AliExpress LED light stripes are very narrow, like half the width of the reel type. Just a bit wider than the CCFL. So cutting them would not be necessary. However that was a very good idea and I didn't know that the layout makes that even possible. Looking forward to your next car boot sale item :)
Chip Guy Vids Thanks for that information. I should have a look on aliexpress again as i have not been on there for a long time and somethimes theres some interesting gadgets.
I always learn quite a bit from your videos. Thank you.
Thank you Anton. I have learned a lot myself from watching other youtubers also.
Thank you for your video, very inspiring for my poor PSR 3000 LCD screen
I have a copyright claim from The Orchard Music on behalf of Comedy Central Records claiming that Yamaha's built in demo tune played at the end of the video belongs to them. I think I may have to contact Yamaha about this.
That is shocking Mark with all the good work you do also promoting Yamaha in your video. I cant imagine Yamaha putting a track on their synth without having paid a license for the track in the first place. It is always the management and not the artist that goes after copyright. Unfortunately youtube Algorithm is dumb
I have published music on routenote and uploaded the same track onto youtube only to get a copyright strike on my own music from youtube. So i got them told and white walled my music so i cant get any mor copyright strikes. But i dont put music on youtube now anyway as streaming is giving music away for free.
Like Gary newman complained one song streamed 1 million times made him £37
Great job! Best way to fix is to improve at the same time. Not sure why you need the caps if you are starting with 12VDC off of another regulator, not off a bridge from an AC source. One would assume the internal 12VDC buss is pretty smooth to begin with.
Yes you are right the 12 volt source will be pretty smooth already but I guess Im so use to using these with caps that I just went ahead and included them as a matter of usual practice.
Nice fix...I did a similar fix on my Alesis fusion, ccfl tube had gone, I disconnected the inverter and popped in some led strip, found 12v and she is as good as new.
Brilliant. and the leds will last many years.
Excellent video very helpful,..now I see why the Roland fantom s display is not lit up,.it had the exact problem as this one,.thanks !!!
Yes the diode trick is cool, never gave that a thought although I should have guessed as they are used as detectors in AM radios lol. I had such a big smile on my face when you turned it on and it lit up for you and looked no different to its original function I guess :D Really glad it turned out good :D I have the reverse problem with an LED backlit PC monitor, I only had it a few months from new and the backlight has stopped working completely. I am still looking for a fix as I dont want to damage the screen if I go inside it. The monitor is passed it's warranty. I also want to retrofit LED to my old Iiyama 1024x768 monitor which is CCFL but still works though the colour has turned a warm sunset when in use. That monitor is years old lol but I still use it with a Socket A PC that has all my music software and keyboard drivers on it, also my midi files are on there and I havent switched it on in a few years as I want to clone the drives before anything happens to them.. Just havent got round to it lol Thanks for a great tutorial :D
I had no idea LED strips existed. Good stuff.
Did this exact thing when my psr-s900 ccfl failed. But found the right ccfl after i'd done the mod. Need to do my Tyros as its fading a bit now.
You are very innovative..Your overhead camera Concept is Great, Even some operation Theatures dont have?
Did this on a psr-s900 that was buzzing horrible due to the ccfl driver board going bad so did the led hack too.
I've watched many of your videos and especially enjoy the "keyboard that's ok apart from one thing that renders it unusable" fixes. In all of those I've not been too concerned about getting it apart and then back together again. This one however gave me the heebie heebie with that display buried away in there and all those connectors! Glad you met with such success. Please tell us why lowering voltage with resistors is not best practice. I mean if the 12v comes off a regulator, dropping it with resistors would be stable enough? Or is there more to it? Love your work.😀
To lower it you need to do a voltage divider, which could dissipate too much power and maybe even break the main power regulator. Well, in the practice you could do that and get the thing working but using another regulator is way more elegant. Anyway I would love Markus to confirm that
What is in your Wrist Cable? Is it for a Static Voltage Defender?
I also used a 'cheapo' LED strip that I found at a local electronics / hobby shop. Yes, it doesn't 'dim - but the LDC is WAY more legible now...
That demo mode is so fine.
Learned a lot in this one, excellent work!
Nice and very hepfull video sir
I have an issue with yamaha PSR s550. There is ni light on lcd and no sound
Please help me to sot out this problem
1 Only One side ..but even light...Great..But How?
2 Brightness control also works? I think We have to connect it through CCFL the same power line?
There's a solid chunk of transparent plastic behind the LCD that distributes the light, called the lightguide. The back surface of it would be mirrored or have mirror foil behind it, the display-facing side is transparent. Look up Total Internal Reflection - when you side fire directional light into a thin slab of material like this, the geometry and angles work out such, that almost all of the light will not come out directly out of the display facing side of the lightguide, but will be reflected again back into the lightguide, and several times more. The surface has to be extremely smooth. The light is mostly trapped in there and could be bouncing around the lightguide numerous times before it can find its way out, and this is the primary mechanism how even backlight spread with edge lighting is achieved. They can further optimise the properties. To reduce the light bouncing, they can etch a bumpy surface texture into microscopic dots on the surface, taking up about 1/10th of the area or less, with the rest being smooth, and on these dots, the light will more likely come out of the plastic than get reflected back in, and when it does get reflected back in, it's more diffused. The reduction of bouncing improves efficiency, since the plastic has some light absorption. It's also possible to vary the size of the dots across the surface to compensate some residual unevenness, but i don't think this is common. Then they layer several plastic diffusion sheets on top of the lightguide, to hide and diffuse the bright dots. The lightguide can be straight or it can be slightly wedge shaped, i think the best shape is determined based on experience and experimentally.
Brightness control? Devices with small screens like these usually simply don't have one, but if there is, it can be connected - but that requires some engineering, starting with finding the DTC (dead time control) line and scoping it out, whether it's PWM, or whether it's voltage based, whether it's inverted. If it's PWM, you can simply insert an N-channel mosfet into the ground line of the LED strip and drive it from DTC. It may be necessary to use a logic NOT circuit, for example a single-transistor inverter.
The RSPCA of the keyboard world 😁
Thanks Carl thats a real nice thought.
Brilliant Video thanks Markus
Sweet! And about your diode "signal tracer", would it detect low current signals as well? I was given a Novation Xio synth that is defective, it doesn't load the OS, can't be detected by a PC's USB bus so I am thinking about finding where the problem is through signal tracing. I only have the schematics to help.
Hi there are special signal probes for oscilloscopes that have signal amplifiers built in but they are very expensive. but to be honest if your scope can go to very low signals i guess it could be possible to do the diode trick though i have normally only done this when sniffing for signals in high current signals. i must try it out and see how low i can go.
Hello Sir...
nice and Informational video..thanks for sharing...meanwhile do u have any solution for "Roland Juno G" display problems ?
Sadly I have no solution for the roland juno-g display, a lot of people are having the same problem with the display.
@@markusfuller oh ok.. anyways thanks for the reply...
I would use an step down converter module with an potentiometer so you can regulate the brightness wehen the room is to dark or to 💡 light
that would be a good idea but I wanted to make the fix as easy as possible. it does have a contrast pot on the back that helps.
Awesome mod, really enjoyed watching that.
Thankyou David
Hello Markusfuller, I have a Roland G 1000 and it is developing a problem with the LCD display in that the colour is fading from blue to a yellow brown and can hardly read it, it is strange that if I lean back I can see that the writing looks normal but leaning forward when I want to edit it looks pale I can hardly make it out, maybe it is only the light or something more serious, upon looking around to try to find a part for it I stumbled on your site, you know so much about the keyboards and you said you have a lot of them around I thought I would trouble you for some advice or you may have a part very willing to pay of course, as I can't a find a part anywhere and I am feeling sad that if the light goes out that's it, otherwise the keyboard is in great condition as I have looked after it with service etc. I am wondering if you can help as to whether you may stumble on a part for the Roland G1000 or if there is a generic or if another model can act as replacement, I also contacted Roland Corp with bad news as to a replacement, your help would be greatly appreciated hoping my request is not too much trouble await your reply Kind regards Noeline
Super video Markus!
@markusfuller can we have a little talk please about psr sx 700 lcd to shows vice versa
hello excellent work!
I have a PSR 9000 LCD screen by default color yellow and blue
I would like to replace yellow with blue to have yellow and blue
or paint the LEDs blue to have less yellow
or cover the LEDs with a blue plastic belt
or reduce the voltage to have less yellow
view the photo
What do you recommend ?
THANK YOU !
Great video and very well explained 👏
Thank You Markus Fuller and Keep up the Good Work!! :)
Thumbs up Indiana USA.
Big thimbs up to you also :-) thank you
Marcus , can you explain why the need for capacitors ? what is their role here ?
@Eman Mann makes sense , thank you !
Good work. I thought the light key will not still working.
Can this work apply to yamaha psr-700? Do I find the same voltages?
Thanx .
Hello Markusfuller, in further reference to my question below, that if the LCD on the Roland G1000 goes out I am wondering if you know would he keyboard work in general e.g. piano arranger section await your reply with thanks Kind Regards Noeline
You’re brilliant!!! Thank you!
great fix Markus
Thank you Doktor Uzo :-)
Hi Marcus, i have a question for you. If i wanna change old CCFL backlight to led i need just a led strip and voltage that will power them up ? If Led strip will be for 9 volts like your i need to just connect it somewhere where it will get 9volts ye? Greate video bro
your vids are very informative, makes me subscribed. thanks for that.
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Brilliant tutorial. Thank you for sharing.
Hi Markus! Great video and detailed explanation, thank you a lot! I've a question, I've a similar issue in a PSR S700, I'm not sure if is it about the CCFL or the inverter board. I discovered a seamless led strip that works at 5V dc... The inverter board of this keyboard have an 5v entry, so, could I connect directly the 5v led strip and remove the original inverter board? Thank you in advance, cheers!!!
Hello. When you say your keyboard has a 5volt entry do you mean it is powered by USB cable ?. I am only guessing but if you do have a 5volt entry point then yes you should be able to run some LEDs from it and place those LEDs as a backlight for the screen. I would test the strip of leds on that 5volt entry for a little while and make sure the keyboard functions correctly before doing all the work of exchanging the backlight just so you know it will work without causing problems. good luck
@@markusfuller Hello! Isn't an USB entry, I'm referring to the internal connector that gives power to the S700's inverter board (Yamaha's part INV X8085)
-> in DC 5V from other internal board
out to CCFL->
Anyway, I ordered a new CCFL lamp, if this not works I will try the LED solution :)
Thank you a lot! Cheers!
@@BitsAndTips oh sorry for the confusion I though you had a usb port as that would also be 5volts. but if the invertor says 5volt then yes try that if your new cfl does not work. though it should.
@@markusfuller Don't worry, my description may be confused. Yes, the service manual says 5V. The "easy" solution is replace the lamp but when it started to fail a little burning smell was coming. I don't viewed any burned component.I hope that all will be ok :)
Thank you very much!
Great video sir actually e i need a display of my keyboard fantom XA Roland can you arrange for me this display of any old keyboard thank you
How can adjust brightness and make it low ?
Yamaha PSR E463
Hi, Markus
in my display of my old Gem WK4 brand keyboard (similar to the yamaha PSR 3000 in the video) I did a similar job but you can see some transversal blue lines, the display works but I wanted to know what it depends on and if a solution is possible . A thousand thanks.
Hi Ricky. I have a WK4 here with a blue display and nothing displayed on it. waiting for a repair but I am working full time now and find it hard to make time to make new videos.
Hello can you help to know the source of upside down lcd on piano keyboard psr sx 700 it show vice versa
You re very good i have a yamaha psr s900 with led problems how to fix it, I'm in Malaysia
Excelent ! You are a professional man.
Thanks Adrian
Great find and brilliant repair! I love those LED strips. I usually run them on a 9-volt battery! That keyboard sounds amazing too, of course, their demo would show it off in the best way. Would love to hear you play one of your original compositions on it though. Thanks for teh instructions about the little dropping circuit board. Very informative! Best wishes to you.
Thank you Clydesight, I agree the demo’s are so well made even if you do not like the style they do show off the capabilities well.
@@markusfuller This is one of the best mid-range arrangers that Yamaha made. The sound quality was wonderful and also the build quality and buttons. Now they come with squishy rubber buttons, but the PSR3000 has hard plastic ones which were very responsive. My keyboard had the same backlight issue and i got it fixed. Not sure what they did to fix it, but I could see it dimming out again so I had to sell it off quickly. If only I had found this video earlier. A majority of PSR3000 keyboards have had display issues. I guess the display was the weak link in this model. Thanks for the great fix and for sharing it here. Could you perhaps add Yamaha PSR 3000 in the title so it's easier to find this video for those who want to fix this lovely keyboard and have fun playing it for a lot many years?
Nice work ❤❤
While watching Game of Thrones tonight, I realized that Nikolaj Coster-Waldau looks almost exactly like you.
You need glasses
Will this work for the PSR900 ?
I have that same yamaha psr3000 with the same issue can I send it to you to fix it?
Nice yt suggestion channel!!! Thanks Markus for sharing your skills!! new sub indeed!
How can we replace the LED of psr 3000 with any other LED
Hi Markus where do you leave in UK l want to bring my Yamaha 3000 for screen LCD change
Markus I have a Yamaha AR100 organ which is in perfect condition with the exception that the display can no longer be adjusted - it is very dark. Do you have any suggestions as to where I may get a new display?
Hello Joseph. I think the ar100 uses the same display as the yamaha QY-700 (though not certain). I really do not know where you could find a replacement. has the backlight stopped working or is it just so dark that you cannot adjust the contrast. ie it is dark but you can see there is light from behind ?.
Markus the backlight is either very dark or very light and does not work well with the contrast button. I am considering purchasing a Yamaha Genos keyboard but at the same time I don't want to give up on the AR100 just because of the display.
@@josephkurcon1736 Hmm I do not think it is the actual backlight that is the problem here. I think there may be a fault with the LCD contrast control. maybe. The Genos is an amazing machine we have one ourselves.
@@markusfuller Markus, a person in the UK had the same problem with the AR100 display and advised that leaking electrolytic capacitor were the problem and solved the problem when he replaced the capacitors. Do your think that would work for the AR100?
@@josephkurcon1736 Hi Joseph, If the capacitors are leaking then they will need replacing but if they are OK then the problem may be something else. sorry I cannot be more specific but theres so many things that can go wrong.
Superb. Awesome video
Can we change a color display for psr s670
I have a similar issue with my Korg Triton LE the lighting has been fading over time. Is it similar in design? tnx good information
The lighting looks like it only coming from the side, pretty dim
Hello William. the Triton LE does not use these old style tube lights but instead uses LED , it will only be lit from one side so you may see more light on the left than on the right. but it should not get dimmer light over time as normally LEDs either work fully or not at all. I’m not sure as I do not own the triton LE but there may be some setting within the menu to control the brightness.
@@markusfuller there is a contrast control , Ive mucked around with . The display has not been a strong feature
not on this lower end triton, the better ones have a nice bright touch display tnx for replying!
William Davidson Hi William yes I had the triton studio for a while and they had good screens but I sold it . wish I had not done that now as it was a good keyboard.
Hello sir may i knw that, does this keyboard works without LCD set removed ?
Hello I think if the LCD was removed it would not start up correctly. though I am not 100% sure.
@@markusfuller thank you so much ! I have the same model keyboard lcd is damaged, i was planing to remove it and replace with 4inch lcd , then i should not take the risk
Sorry, I'm asking you but I can't figure out where you connected from with less, from the keyboard,
Dear Mark, I have a PSR 5700 Keyboard by Yamaha with a LCD screen display is lighting up but not able to read. Is there a replacement part for that I am trying to find on ebay but no luck. Someone else told me that it could be the capacitors for the LCD....The keyboard works fine just cannot read my parameters. What should I do?
Just wow, fantastic information
Amazing fix on video as always
Thanks Joseph