Roland XP-50 Repair and Restoration
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- Опубліковано 27 бер 2018
- Repair and restoration of a classic Roland XP-50. Common symptoms on the XP-50 are loss of display and low or no audio output which are both discussed in this video. I always wanted one of these, finding a neglected one I went through a full restoration. I took the entire synth apart, cleaned it, replaced some damaged keys, and replaced all SMD capacitors on the main board. I discuss internal architecture in a mini teardown as well.
Thanks so much for this video! It brought back my XP-50 to fully working condition. Replaced some caps and changed all the buttons.
Please keep the repair and teardown videos coming! Your channel is the best!
As a fellow engineer, I just wanted to say thanks. Your videos saved me a lot of time. I was able to perform the repair without too much difficulty, but without prior surface mount experience this would be difficult for a person with intermediate solder skills.
Your synth repair / restoration videos are great! I really appreciate the explanations of what you are doing and also the synth history. Score on the vintage synth expansion card! That paid for the synth...watched the rest of the video and saw it's the experience card...still a cool card with a lot of stuff from the vintage synth card. Thanks for bringing old boards back to life!
I need to report this. I just took down pages of notes from your video in order to start the work on an XP50 that canme to me, no screen, no output. I put it on my bench tonight and turned it on to see the symptoms. The LED screen came alive with patches, numbers, etc.. And it sounds like a million bucks, big rich wide stereo tones. I'm kinda baffled. It had been dead in the water from the owner and something happened that brought it back. Well, at least for now. I'm sure those capacitor are getting ready for a cat pee fest. Thank you for this really good video.
Excellent video! I don't have an XP-50, but this was extremely informative and I hope to carry over the techniques and knowledge to a couple of repairs / restorations I'm about to work on. Please keep these videos coming , and thanks!
Thanks for sharing! Makes me more confident that I can bring back my one to life. Good job!
Thanks for the video. I've really enjoyed your explanation of your steps and why and the general circuitry walk-throughs. Very well done. I'm an owner of the 2080, so I'm familiar with the sound engine.
Thanks for making this video. Very helpful. I found one of these in need of this repair.
I am currently repairing an XP80 and it has exactly same issues as your XP50. The expansion board of XP80 is same is XP50, just has more components on the board. The mainboard is different, and it is using a different DAC (PCM69U), actually 2 of them for different outputs. In my case there was absolutely no audio coming out of the synth, but after probing with a scope I could see clock, digital in and audio out on the DAC. The audio was lost after the first op amp but the headphone output was working fine when I inhjected with a 1kHz signal. After replacing all caps on one channel, I could hear audio. Stock caps are actually Panasonic as well, but SMDs don't last long on that board so I decided to go with THT instead. With THT, there is less chance of overheating the cap when soldering in, less chance of lifting the tracks when desoldering and a THT part will last longer. I also decided to go against tantalum caps after I had to replace a shorted one in a different device.
AEJ New Orleans here, I do really appreciate your excellent eye opener work you did and always wonder why I was turned down by one TECHNICIAN that told me not to waste his time on fixing my XP-80.
Absolutely fascinating, thank you! I bought my XP50 in 1995 and I still use it. A friend just GAVE me an old XP50 which wasn't working...I've replaced the battery and done a factory reset and I get sound and visuals now, but output is low. Capacitors need replacing obviously. Thanks again, and best wishes from New Zealand.
Thank you Very much. I give you a big thank. By following your video i have repaired my xp 50 keyboard which had sound and key problem. I wanted to throw it. Finally due to your magnificent tutorial I have been able to repair my keyboard by myself.
Blows my mind how much you have to know to even diagnose a circuit board! I'm hurting my head trying to learn. Then again - all those machines you have in the background hurts too!
Even I am not a electronic technician I see this is an awesome video, thanks for sharing-explaining everything. I've also bought a old shape XP-50. The problems I've found on it are: Low Battery, L-R stereo Out Problem (All the Sounds are in mono, and cancelling sounds when Stereo L-R connected to mixer, and layers faders c1-c2 (Not Working)maybe disconnected,. but the worse for me is the stereo output so I'll have to find someone to repair this for me here in my country.
Keys were really trashed... wow! Maybe someone was obsessed with learning Cat Scratch Fever? Seriously, awesome video. Super helpful... Thank you!
This is a great guide, thank you! I'm working on one XP-50 right now.
Thanks so much for this! My XP50 needs some of this!
Great Video. Thanks a lot for sharing. Please keep uploading.
Excellent work! Many thanks!