# Uncategorized **URL:** https://forums.syntaur.com/c/uncategorized/1.md [Latest](https://forums.syntaur.com/latest.md) · [Categories](https://forums.syntaur.com/categories.md) · [Tags](https://forums.syntaur.com/tags.md) --- ## [No sound Kurzweil CUP2](https://forums.syntaur.com/t/no-sound-kurzweil-cup2/8068)
**Author:** [@alexander](https://forums.syntaur.com/u/alexander)\ **Replies:** 3\ **Last updated:** [October 6, 2026, 10:06am UTC](https://forums.syntaur.com/t/no-sound-kurzweil-cup2/8068 "2026-10-06T10:06:13Z")
I have the Kurzweil CUP2 model. It was working well and one day after I turned it on there was no display…on the control panel board ( there is always a “wellcome message” that is displayed on the board ) and no sound w… --- ## [Montage 7 keys not playing at the ends only the middle](https://forums.syntaur.com/t/montage-7-keys-not-playing-at-the-ends-only-the-middle/9570)
**Author:** [@eustazan](https://forums.syntaur.com/u/eustazan)\ **Replies:** 2\ **Last updated:** [September 30, 2026, 5:56pm UTC](https://forums.syntaur.com/t/montage-7-keys-not-playing-at-the-ends-only-the-middle/9570 "2026-09-30T17:56:22Z")
I Have a yamaha montage 7 after a power outage the low keys stop playing for the low circuit bourd and about 5 key on the hight end. Any assistance on hiw to deal with . Thanks --- ## [Circuit Board Yamaha PSREW400](https://forums.syntaur.com/t/circuit-board-yamaha-psrew400/9545)
**Author:** [@Eryzo25](https://forums.syntaur.com/u/Eryzo25)\ **Replies:** 2\ **Last updated:** [September 11, 2026, 1:49am UTC](https://forums.syntaur.com/t/circuit-board-yamaha-psrew400/9545 "2026-09-11T01:49:53Z")
Hello! Im looking for this part for this yamaha model, Im looking forward to repair my piano, so if I could get this part it will be lovely. --- ## [ASR 10 Syntaur Gotek drectory](https://forums.syntaur.com/t/asr-10-syntaur-gotek-drectory/9542)
**Author:** [@jeruniverse](https://forums.syntaur.com/u/jeruniverse)\ **Replies:** 0\ **Last updated:** [August 27, 2026, 8:34pm UTC](https://forums.syntaur.com/t/asr-10-syntaur-gotek-drectory/9542 "2026-08-27T20:34:07Z")
Hello, I just installed the Gotek I ordered from syntaur and it seems to be working fine. Is there a directory list for the samples provided on the SD card? It would be great if I could see what to find where. --- ## [Ensoniq VFX-SD Keyboard Calibration Error](https://forums.syntaur.com/t/ensoniq-vfx-sd-keyboard-calibration-error/9538)
**Author:** [@NewRenaissanceMan](https://forums.syntaur.com/u/NewRenaissanceMan)\ **Replies:** 0\ **Last updated:** [August 18, 2026, 11:34pm UTC](https://forums.syntaur.com/t/ensoniq-vfx-sd-keyboard-calibration-error/9538 "2026-08-18T23:34:53Z")
For the past few years My Ensoniq VFX-SD has been giving me the Keyboard Calibration Error prompt with increasing regularity. I found that if I left it on for a while and let it warm up I could restart it and it would ca… --- ## [Kawai MP 9000 need key hinge](https://forums.syntaur.com/t/kawai-mp-9000-need-key-hinge/9536)
**Author:** [@salsperrazza](https://forums.syntaur.com/u/salsperrazza)\ **Replies:** 0\ **Last updated:** [August 18, 2026, 1:40am UTC](https://forums.syntaur.com/t/kawai-mp-9000-need-key-hinge/9536 "2026-08-18T01:40:19Z")
I contacted Kawai, they have discontinued parts for this model. It’s a low C so I can still play the middle and high end but I sure miss that low C. Looking for help! --- ## [AKAI AX80 Banks A&B Patch Parm Setting Values](https://forums.syntaur.com/t/akai-ax80-banks-a-b-patch-parm-setting-values/9408)
**Author:** [@PianoDudeFL](https://forums.syntaur.com/u/PianoDudeFL)\ **Replies:** 1\ **Last updated:** [August 14, 2026, 11:12pm UTC](https://forums.syntaur.com/t/akai-ax80-banks-a-b-patch-parm-setting-values/9408 "2026-08-14T23:12:26Z")
I have an AX80 whose green & black graphic display (VSD?) is no longer working. While I was able to locate a website to load the A & B banks, it appears that because of at least this (and I believe a failed chip inside)… --- ## [Seeking Roland HP 330 Volume / Display / Buttons board](https://forums.syntaur.com/t/seeking-roland-hp-330-volume-display-buttons-board/9531)
**Author:** [@PaulFitz](https://forums.syntaur.com/u/PaulFitz)\ **Replies:** 0\ **Last updated:** [August 12, 2026, 7:15pm UTC](https://forums.syntaur.com/t/seeking-roland-hp-330-volume-display-buttons-board/9531 "2026-08-12T19:15:37Z")
Ho! Im trying to locate a volume slider, controls, buttons board for hp330. I had to move 20 years ago and gutted the whole body saving the amp section and misplaced the control panel. The plan: i was already using … --- ## [Korg i3 keyboard](https://forums.syntaur.com/t/korg-i3-keyboard/9526)
**Author:** [@Jermaine.55](https://forums.syntaur.com/u/Jermaine.55)\ **Replies:** 1\ **Last updated:** [August 11, 2026, 7:00am UTC](https://forums.syntaur.com/t/korg-i3-keyboard/9526 "2026-08-11T07:00:58Z")
Trying to find black and white notes for korg i3 61 keys keyboard --- ## [Demande de formation](https://forums.syntaur.com/t/demande-de-formation/9520)
**Author:** [@Zikaltofour](https://forums.syntaur.com/u/Zikaltofour)\ **Replies:** 1\ **Last updated:** [August 3, 2026, 12:22am UTC](https://forums.syntaur.com/t/demande-de-formation/9520 "2026-08-03T00:22:10Z")
Salut salut Mr,Je me nome Bertrand Soh,Je réside au Cameroun,Je suis dans le commerce des accessoires pour instruments de musique au Cameroun,mon entreprise en est Zikalto. Je suis très intéressé par l’électronique des … --- ## [On the topic of CS Series Filter IC Yamaha IG00156 and IG00155](https://forums.syntaur.com/t/on-the-topic-of-cs-series-filter-ic-yamaha-ig00156-and-ig00155/9513)
**Author:** [@Travis](https://forums.syntaur.com/u/Travis)\ **Replies:** 1\ **Last updated:** [July 29, 2026, 8:51pm UTC](https://forums.syntaur.com/t/on-the-topic-of-cs-series-filter-ic-yamaha-ig00156-and-ig00155/9513 "2026-07-29T20:51:34Z")
I see a handful of listings on Ebay and mentions on other forums of people supposing Yamaha IC IG00155 is a suitable replacement for the filter IC IG00156 in the CS series. This is a warning that it is not, at least not … --- ## [Synth techs in Texas](https://forums.syntaur.com/t/synth-techs-in-texas/9505)
**Author:** [@Alvaro](https://forums.syntaur.com/u/Alvaro)\ **Replies:** 2\ **Last updated:** [July 16, 2026, 8:59pm UTC](https://forums.syntaur.com/t/synth-techs-in-texas/9505 "2026-07-16T20:59:27Z")
Hey everyone, i wanted to reach out and ask if there are any trustworthy synth techs in Texas, specifically Houston. I know syntuar does not really take in repair requests and most of the synth tech recommendations that… --- ## [Korg Pa5X stuck on the logo screen](https://forums.syntaur.com/t/korg-pa5x-stuck-on-the-logo-screen/9497)
**Author:** [@Pakin](https://forums.syntaur.com/u/Pakin)\ **Replies:** 1\ **Last updated:** [July 14, 2026, 6:50am UTC](https://forums.syntaur.com/t/korg-pa5x-stuck-on-the-logo-screen/9497 "2026-07-14T06:50:59Z")
Hi,I am experiencing a critical boot issue with my KORG Pa5X, and I would appreciate your advice on which internal part needs to be replaced to fix it. Here are the details and symptoms: The Issue: When I turn on the k… --- ## [Emu E4XT Ultra flash ram kit checksum fail](https://forums.syntaur.com/t/emu-e4xt-ultra-flash-ram-kit-checksum-fail/9499)
**Author:** [@Urge](https://forums.syntaur.com/u/Urge)\ **Replies:** 1\ **Last updated:** [July 14, 2026, 6:34am UTC](https://forums.syntaur.com/t/emu-e4xt-ultra-flash-ram-kit-checksum-fail/9499 "2026-07-14T06:34:04Z")
So, I recently purchased am Emu E4XT ultra that came with an uninstalled Syntaur 10435 16MB flash kit. The installation was uneventful but when I checked the memory it the kit failed the checksum. I uninstalled the kit a… --- ## [DAEWOO PCM Digital Ensemble EU-4](https://forums.syntaur.com/t/daewoo-pcm-digital-ensemble-eu-4/9489)
**Author:** [@wernersaurus](https://forums.syntaur.com/u/wernersaurus)\ **Replies:** 2\ **Last updated:** [July 6, 2026, 4:38am UTC](https://forums.syntaur.com/t/daewoo-pcm-digital-ensemble-eu-4/9489 "2026-07-06T04:38:03Z")
Hello, has anyone within this forum ever worked on a DAEWOO PCM Digital Ensemble EU-4. Is there any tech documentation around or someone that has access to some service manuals, schematics … Seems I have to be looking … --- ## [I think I messed up my Roland D-20 by spraying Wd-40 Electrical Contact Cleaner on it](https://forums.syntaur.com/t/i-think-i-messed-up-my-roland-d-20-by-spraying-wd-40-electrical-contact-cleaner-on-it/9490)
**Author:** [@edrepairs](https://forums.syntaur.com/u/edrepairs)\ **Replies:** 4\ **Last updated:** [July 4, 2026, 2:48am UTC](https://forums.syntaur.com/t/i-think-i-messed-up-my-roland-d-20-by-spraying-wd-40-electrical-contact-cleaner-on-it/9490 "2026-07-04T02:48:05Z")
I think I messed up my Roland D-20 by spraying Wd-40 Electrical Contact Cleaner on it. Is this recoverable? --- ## [Yamaha P125 e piano 3 keys sound bad](https://forums.syntaur.com/t/yamaha-p125-e-piano-3-keys-sound-bad/9485)
**Author:** [@BigRich](https://forums.syntaur.com/u/BigRich)\ **Replies:** 2\ **Last updated:** [June 13, 2026, 11:12pm UTC](https://forums.syntaur.com/t/yamaha-p125-e-piano-3-keys-sound-bad/9485 "2026-06-13T23:12:50Z")
YamahaP125 keyboard, all keys work but some (middle section) were sometimes very loud. Disassembled , vac, removed centre rubber strips, carbon looked good, lightly tip/alcahol reassembled. Better but when 3 keys played … --- ## [Korg pa700 61 keys](https://forums.syntaur.com/t/korg-pa700-61-keys/9475)
**Author:** [@deacon1](https://forums.syntaur.com/u/deacon1)\ **Replies:** 3\ **Last updated:** [June 9, 2026, 7:03am UTC](https://forums.syntaur.com/t/korg-pa700-61-keys/9475 "2026-06-09T07:03:06Z")
Demo comes on but i get no sound from the keys --- ## [Juno 106 calibration problems](https://forums.syntaur.com/t/juno-106-calibration-problems/9393)
**Author:** [@Sundogbass](https://forums.syntaur.com/u/Sundogbass)\ **Replies:** 1\ **Last updated:** [June 4, 2026, 10:15pm UTC](https://forums.syntaur.com/t/juno-106-calibration-problems/9393 "2026-06-04T22:15:05Z")
My 106 was probably sitting for about 20 years, however it worked before I stored it. so I went through the normal overall: new chips, new filters, new sliders and some other things. I checked all of the pre-volts checks… --- ## [Yamaha CVP-79a Music Stand Replacement](https://forums.syntaur.com/t/yamaha-cvp-79a-music-stand-replacement/9474)
**Author:** [@Blahnikc](https://forums.syntaur.com/u/Blahnikc)\ **Replies:** 0\ **Last updated:** [June 2, 2026, 1:27am UTC](https://forums.syntaur.com/t/yamaha-cvp-79a-music-stand-replacement/9474 "2026-06-02T01:27:58Z")
Hi, all! Any idea where to find a replacement music stand for my CVP-79a? I still have the stand, but it seems as if the circular screws that fit into the hole and the screws themselves have broken over time. I tried to… --- ## [ESQ1 Repair - Overheating Transistor](https://forums.syntaur.com/t/esq1-repair-overheating-transistor/9461)
**Author:** [@ctrlshft](https://forums.syntaur.com/u/ctrlshft)\ **Replies:** 13\ **Last updated:** [May 22, 2026, 7:14pm UTC](https://forums.syntaur.com/t/esq1-repair-overheating-transistor/9461 "2026-05-22T19:14:08Z")
Hello Everyone - I’m hoping for some guidance in repairing an ESQ1 that I damaged during Eprom replacement (installed them backwards!). Since then start up (even with new, working, correctly installed eproms) causes the … --- ## [Piano won’t power on](https://forums.syntaur.com/t/piano-won-t-power-on/7883)
**Author:** [@Colbybrown91](https://forums.syntaur.com/u/Colbybrown91)\ **Replies:** 8\ **Last updated:** [May 20, 2026, 8:34am UTC](https://forums.syntaur.com/t/piano-won-t-power-on/7883 "2026-05-20T08:34:48Z")
I have a YAMAHA - E363 keyboard. I already know I blew something. I believe I used the wrong wattage power source and I had the good ol (pop) noise - and then the keyboard just faded away on me. I tried batteries to see… --- ## [Roland EM-55 OR .sy2 backup file missing](https://forums.syntaur.com/t/roland-em-55-or-sy2-backup-file-missing/9038)
**Author:** [@Forumember](https://forums.syntaur.com/u/Forumember)\ **Replies:** 1\ **Last updated:** [May 9, 2026, 2:35am UTC](https://forums.syntaur.com/t/roland-em-55-or-sy2-backup-file-missing/9038 "2026-05-09T02:35:20Z")
Hello, I hope you’re well. I own a Roland EM-55 OR (Oriental version) and unfortunately, I made a mistake by installing the standard firmware, which caused me to lose all the original Oriental sounds and styles. I am d… --- ## [Korg Lambda ES-50 with multiple issues (possible voltage divider, dead key issues)](https://forums.syntaur.com/t/korg-lambda-es-50-with-multiple-issues-possible-voltage-divider-dead-key-issues/9438)
**Author:** [@menofthevalley](https://forums.syntaur.com/u/menofthevalley)\ **Replies:** 0\ **Last updated:** [May 8, 2026, 1:06am UTC](https://forums.syntaur.com/t/korg-lambda-es-50-with-multiple-issues-possible-voltage-divider-dead-key-issues/9438 "2026-05-08T01:06:52Z")
Hey all, I just got a hold of a Korg Lambda ES-50, and was super excited to try it when I found that the majority of the Eb keys on-board, except for the last one, as well as a cluster of keys (last octave of F-A natura… --- ## [EX5R OS chip upgrade disaster](https://forums.syntaur.com/t/ex5r-os-chip-upgrade-disaster/8499)
**Author:** [@niksGear](https://forums.syntaur.com/u/niksGear)\ **Replies:** 14\ **Last updated:** [May 6, 2026, 10:00pm UTC](https://forums.syntaur.com/t/ex5r-os-chip-upgrade-disaster/8499 "2026-05-06T22:00:34Z")
Hello, just tried to upgrade my working EX5R from the original eproms to the latest available versions but accidentally installed them backwards. (Unfortunately, Yamaha did not “idiot proof” the sockets by making it so … --- ## [White lubricant used on Fatar keybeds (TP/9S, TP/8SK](https://forums.syntaur.com/t/white-lubricant-used-on-fatar-keybeds-tp-9s-tp-8sk/9423)
**Author:** [@willpro87](https://forums.syntaur.com/u/willpro87)\ **Replies:** 4\ **Last updated:** [May 3, 2026, 2:38am UTC](https://forums.syntaur.com/t/white-lubricant-used-on-fatar-keybeds-tp-9s-tp-8sk/9423 "2026-05-03T02:38:04Z")
Hey everyone, I’m working on a Fatar TP/8SK keybed and was curious about the white grease used on the rubber key stop bushings (the thick, creamy stuff where the key bottoms out, see pictures) I’ve gone through a bunch… --- ## [Roland FP-10 with water damage](https://forums.syntaur.com/t/roland-fp-10-with-water-damage/9419)
**Author:** [@PianoMom](https://forums.syntaur.com/u/PianoMom)\ **Replies:** 3\ **Last updated:** [April 30, 2026, 9:17pm UTC](https://forums.syntaur.com/t/roland-fp-10-with-water-damage/9419 "2026-04-30T21:17:30Z")
Hello, I have a fairly new (less than 2 years) Roland FP-10 keyboard. Apparently it got water damage on the high notes circuit board without my knowledge. At first only those keys acted up but then all the keys started a… --- ## [Power Supply Board-Yamaha Clavinova CVP-609](https://forums.syntaur.com/t/power-supply-board-yamaha-clavinova-cvp-609/9427)
**Author:** [@SmithChapel](https://forums.syntaur.com/u/SmithChapel)\ **Replies:** 0\ **Last updated:** [April 28, 2026, 3:23am UTC](https://forums.syntaur.com/t/power-supply-board-yamaha-clavinova-cvp-609/9427 "2026-04-28T03:23:14Z")
Looking for power supply board for Yamaha Clavinova CVP-609/CVP-605. Part # : ZC568001 or circuit chip Part #: YD424A01 --- ## [Kurzweil Micro Ensemble (ME-1)](https://forums.syntaur.com/t/kurzweil-micro-ensemble-me-1/9421)
**Author:** [@iatras](https://forums.syntaur.com/u/iatras)\ **Replies:** 0\ **Last updated:** [April 24, 2026, 4:05pm UTC](https://forums.syntaur.com/t/kurzweil-micro-ensemble-me-1/9421 "2026-04-24T16:05:37Z")
I’m reaching out to this community in hopes that someone might have a specific legacy file saved. I own two Kurzweil ME-1 units. One is already updated, but I recently acquired a second one that is still on an older fir… --- ## [Are there rubber knobs like those on the V-Synth but bigger?](https://forums.syntaur.com/t/are-there-rubber-knobs-like-those-on-the-v-synth-but-bigger/9416)
**Author:** [@HUBA](https://forums.syntaur.com/u/HUBA)\ **Replies:** 0\ **Last updated:** [April 22, 2026, 9:52pm UTC](https://forums.syntaur.com/t/are-there-rubber-knobs-like-those-on-the-v-synth-but-bigger/9416 "2026-04-22T21:52:05Z")
Slightly conical with a straight knurled pattern round the top. Level indicator on top and all the way down. Seems to be about 9 mm diameter. Supposedly 6 mm D-shaft.(?) Here’s a picture: I’ve found some that look si… [Next page](https://forums.syntaur.com/c/uncategorized/1.md?page=1)