# \#ensoniq **URL:** https://forums.syntaur.com/tag/ensoniq/41.md [Latest](https://forums.syntaur.com/latest.md) · [Categories](https://forums.syntaur.com/categories.md) · [Tags](https://forums.syntaur.com/tags.md) --- ## [Ensoniq SQ-2 (32 voice) needs to warm up before works?](https://forums.syntaur.com/t/ensoniq-sq-2-32-voice-needs-to-warm-up-before-works/9535)
**Author:** [@dnigrin](https://forums.syntaur.com/u/dnigrin)\ **Replies:** 3\ **Last updated:** [September 17, 2026, 12:04am UTC](https://forums.syntaur.com/t/ensoniq-sq-2-32-voice-needs-to-warm-up-before-works/9535 "2026-09-17T00:04:13Z")
I’ve got an SQ-2 (32 voice) that’s not working correctly, and I’m looking for help in debugging. On power on, it displays (consistent) weird characters/pixels on the LCD, button presses don’t work, and the keyboard does… --- ## [Ensoniq ESQ-1 boots to self-test, but keyboard, MIDI and sound all work](https://forums.syntaur.com/t/ensoniq-esq-1-boots-to-self-test-but-keyboard-midi-and-sound-all-work/9541)
**Author:** [@guyasaer](https://forums.syntaur.com/u/guyasaer)\ **Replies:** 3\ **Last updated:** [August 31, 2026, 9:27pm UTC](https://forums.syntaur.com/t/ensoniq-esq-1-boots-to-self-test-but-keyboard-midi-and-sound-all-work/9541 "2026-08-31T21:27:51Z")
I’m trying to diagnose an early metal-case ESQ-1 (serial ~82, OS 1.7). On startup it shows the normal ESQ-1 screen, then goes into self-test. The self-test works normally — all front-panel buttons and the display work. … --- ## [Ensoniq EPS - Rare DOC chip needed](https://forums.syntaur.com/t/ensoniq-eps-rare-doc-chip-needed/9506)
**Author:** [@Rob2](https://forums.syntaur.com/u/Rob2)\ **Replies:** 3\ **Last updated:** [July 25, 2026, 5:22pm UTC](https://forums.syntaur.com/t/ensoniq-eps-rare-doc-chip-needed/9506 "2026-07-25T17:22:55Z")
Ensoniq EPS Classic I’m looking to replace a rare DOC chip on a Classic Ensoniq EPS. The one I’m looking for is the one with the green resistor network in the photo if anyone has seen one of these floating around. Than… --- ## [Ensoniq SQ80 battery replaced but still no low voltage warning + custom patches dont save after turning on and off](https://forums.syntaur.com/t/ensoniq-sq80-battery-replaced-but-still-no-low-voltage-warning-custom-patches-dont-save-after-turning-on-and-off/9478)
**Author:** [@ewanferg98](https://forums.syntaur.com/u/ewanferg98)\ **Replies:** 4\ **Last updated:** [June 16, 2026, 8:52am UTC](https://forums.syntaur.com/t/ensoniq-sq80-battery-replaced-but-still-no-low-voltage-warning-custom-patches-dont-save-after-turning-on-and-off/9478 "2026-06-16T08:52:25Z")
So after replacing my battery in my Ensoniq SQ80 with a new one, the screen is no longer garbled, and I can actually use the synth again! However, the only remaining issue is that the load screen still says “warning low … --- ## [Esoniq ESQ-1 Repair - Completely dead](https://forums.syntaur.com/t/esoniq-esq-1-repair-completely-dead/9470)
**Author:** [@jimcatalyst](https://forums.syntaur.com/u/jimcatalyst)\ **Replies:** 3\ **Last updated:** [June 4, 2026, 9:16pm UTC](https://forums.syntaur.com/t/esoniq-esq-1-repair-completely-dead/9470 "2026-06-04T21:16:47Z")
Esoniq ESQ-1 Metal Case - Revision B – Was dead, no screen, now no output I’ve had an ESQ-1 on the bench for a few weeks and thought I’d share where I’ve got to. It’s been an interesting one and I’ve hit a wall on a cou… --- ## [Ensoniq SD-1 mail rail. See pic](https://forums.syntaur.com/t/ensoniq-sd-1-mail-rail-see-pic/9435)
**Author:** [@jimbo41158](https://forums.syntaur.com/u/jimbo41158)\ **Replies:** 1\ **Last updated:** [May 11, 2026, 10:22pm UTC](https://forums.syntaur.com/t/ensoniq-sd-1-mail-rail-see-pic/9435 "2026-05-11T22:22:30Z")
Hi, Anybody know where I can get a replacement rail. See pic. Maybe this part is used on other Ensoniq keyboards…not sure.. Thanks…Jim ., korg, models-korg-m1, no-power If your model isn’t listed: use models–tbd (… --- ## [Every 8th Key Dead on Ensoniq ESQ-1, any idea what to check on the board?](https://forums.syntaur.com/t/every-8th-key-dead-on-ensoniq-esq-1-any-idea-what-to-check-on-the-board/9436)
**Author:** [@gordotuomi](https://forums.syntaur.com/u/gordotuomi)\ **Replies:** 2\ **Last updated:** [May 10, 2026, 7:29am UTC](https://forums.syntaur.com/t/every-8th-key-dead-on-ensoniq-esq-1-any-idea-what-to-check-on-the-board/9436 "2026-05-10T07:29:28Z")
\[Ensoniq\] \[ESQ-1\] – \[Dead Keys\] Hello! I recently picked up an Ensoniq ESQ-1 (plastic version), however it has 7 dead keys: 12, 20, 28, 36, 44, 52, 60. Every dead key is 8 notes apart which means it is likely a circuit … --- ## [ASR-10 - Gotek USB drive booting OS, but getting "Disk Drive Not Ready" when loading anything else](https://forums.syntaur.com/t/asr-10-gotek-usb-drive-booting-os-but-getting-disk-drive-not-ready-when-loading-anything-else/9432)
**Author:** [@asl407](https://forums.syntaur.com/u/asl407)\ **Replies:** 1\ **Last updated:** [May 5, 2026, 3:00pm UTC](https://forums.syntaur.com/t/asr-10-gotek-usb-drive-booting-os-but-getting-disk-drive-not-ready-when-loading-anything-else/9432 "2026-05-05T15:00:13Z")
Ensoniq ASR-10 Keyboard – Gotek USB drive booting OS, but getting “Disk Drive Not Ready” when loading anything else • Model & revision/OS: Ensoniq ASR-10 Keyboard, OS 3.53 • Symptoms (what changed, when): Installed new… --- ## [Ensoniq ESQ-1 (metal case) Display Issues: Garbled Characters](https://forums.syntaur.com/t/ensoniq-esq-1-metal-case-display-issues-garbled-characters/9381)
**Author:** [@Sodapopinski](https://forums.syntaur.com/u/Sodapopinski)\ **Replies:** 2\ **Last updated:** [March 24, 2026, 9:41pm UTC](https://forums.syntaur.com/t/ensoniq-esq-1-metal-case-display-issues-garbled-characters/9381 "2026-03-24T21:41:38Z")
Ensoniq ESQ-1 (metal case) – Display: Garbled Characters • Model & revision/OS: OS version 2.0 • Symptoms (what changed, when): Long time Ensoniq fan (The ESP16+ was my first keyboard every in 1991). I just purchased … --- ## [Ensoniq MR76 - Not start and displays black squares](https://forums.syntaur.com/t/ensoniq-mr76-not-start-and-displays-black-squares/9319)
**Author:** [@tornis](https://forums.syntaur.com/u/tornis)\ **Replies:** 0\ **Last updated:** [January 22, 2026, 11:27am UTC](https://forums.syntaur.com/t/ensoniq-mr76-not-start-and-displays-black-squares/9319 "2026-01-22T11:27:21Z")
I’m having a problem with my MR76. It was playing and suddenly it froze and the screen went black. I turned it off and on again, but when I turn it on it gets stuck and the screen only displays black squares as shown i… --- ## [Ensoniq SD 1 not reading Gotek USB](https://forums.syntaur.com/t/ensoniq-sd-1-not-reading-gotek-usb/9191)
**Author:** [@Mint](https://forums.syntaur.com/u/Mint)\ **Replies:** 3\ **Last updated:** [January 21, 2026, 2:38am UTC](https://forums.syntaur.com/t/ensoniq-sd-1-not-reading-gotek-usb/9191 "2026-01-21T02:38:54Z")
\[Ensoniq\] \[SD-1\] – \[not reading Gotek Floppy emulator\] I have a SD-1 which someone else installed the Gotek floppy emulator into, the USB stick they have was made by syntaur. I have checked to make sure the jump pin is … --- ## [Help trying to resurrect an SQ-80](https://forums.syntaur.com/t/help-trying-to-resurrect-an-sq-80/9276)
**Author:** [@Mr\_Time\_Waster](https://forums.syntaur.com/u/Mr_Time_Waster)\ **Replies:** 9\ **Last updated:** [December 29, 2025, 6:22pm UTC](https://forums.syntaur.com/t/help-trying-to-resurrect-an-sq-80/9276 "2025-12-29T18:22:22Z")
\[Ensoniq\] \[SQ-80\] – \[No Audio and Garbled display\] Hi all! I recently purchased my first synth (apart from a stylophone), an Ensoniq SQ-80. The Good: it was only $100 and came with a SKB case. The Bad: there’s a reason … --- ## [Ensoniq ESQ-1 sustain pedal or expression?](https://forums.syntaur.com/t/ensoniq-esq-1-sustain-pedal-or-expression/9152)
**Author:** [@Pik0](https://forums.syntaur.com/u/Pik0)\ **Replies:** 2\ **Last updated:** [September 23, 2025, 4:36pm UTC](https://forums.syntaur.com/t/ensoniq-esq-1-sustain-pedal-or-expression/9152 "2025-09-23T16:36:26Z")
So I’m trying to get a sustain working on this old ESQ-1 keyboard. So far i’ve tried a standard TS style pedal which yielded zero results in any voice. In reading the schematic, it looks like it’s expecting a TRS style p… --- ## [ESQ-1 Low Output with 60 Hz Hum - Sound Only Audible at Extreme Amplification (Video Included)](https://forums.syntaur.com/t/esq-1-low-output-with-60-hz-hum-sound-only-audible-at-extreme-amplification-video-included/9148)
**Author:** [@Pik0](https://forums.syntaur.com/u/Pik0)\ **Replies:** 4\ **Last updated:** [September 23, 2025, 2:46am UTC](https://forums.syntaur.com/t/esq-1-low-output-with-60-hz-hum-sound-only-audible-at-extreme-amplification-video-included/9148 "2025-09-23T02:46:04Z")
Hi Syntaur community, I’m troubleshooting my Ensoniq ESQ-1 (metal case, 1980s model) with a frustrating issue: the audio output is extremely quiet, only audible when heavily amplified (+20–30 dB on my mixer/amp). At nor… --- ## [Ensoniq EPS Classic L/Headphone output Louder](https://forums.syntaur.com/t/ensoniq-eps-classic-l-headphone-output-louder/9133)
**Author:** [@Metrond](https://forums.syntaur.com/u/Metrond)\ **Replies:** 4\ **Last updated:** [September 16, 2025, 5:39pm UTC](https://forums.syntaur.com/t/ensoniq-eps-classic-l-headphone-output-louder/9133 "2025-09-16T17:39:04Z")
\[Ensoniq\] \[EPS\] – \[L/Headphone output Louder\] Ensoniq EPS Classic L/Headphone output Louder Hey. I have a Ensoniq EPS Classic. The problem I have is when in stereo output the left output is slightly louder. When ri… --- ## [Sq2 32 vice se pasma al querer utilizar guitar distor](https://forums.syntaur.com/t/sq2-32-vice-se-pasma-al-querer-utilizar-guitar-distor/788)
**Author:** [@Abi210273](https://forums.syntaur.com/u/Abi210273)\ **Replies:** 9\ **Last updated:** [April 30, 2024, 12:48pm UTC](https://forums.syntaur.com/t/sq2-32-vice-se-pasma-al-querer-utilizar-guitar-distor/788 "2024-04-30T12:48:44Z")
Bnas noches Soy nuevo en este foro y quisiera alguien me pudiere ayudar tengo un sq 2 32 vice el cual lo adquiri nuevo de paquete ha e más de 20 años resulta que en el primer año se quemó la fuente de alimentación virtu… --- ## [TS-10 Keyboard Calibration error](https://forums.syntaur.com/t/ts-10-keyboard-calibration-error/906)
**Author:** [@csonics](https://forums.syntaur.com/u/csonics)\ **Replies:** 28\ **Last updated:** [September 18, 2021, 2:39am UTC](https://forums.syntaur.com/t/ts-10-keyboard-calibration-error/906 "2021-09-18T02:39:58Z")
Hi All, so I’ve got a ts-10 that tries to calibrate the keyboard then give the error that the keyboard is not responding. I’ve tried replacing the jumper that connects the two coil boards under the keyboard and still ge… --- ## [Ensoniq ESQ-1 Filter Tuning zero and almost no sound](https://forums.syntaur.com/t/ensoniq-esq-1-filter-tuning-zero-and-almost-no-sound/448)
**Author:** [@Aircoholic](https://forums.syntaur.com/u/Aircoholic)\ **Replies:** 17\ **Last updated:** [March 31, 2021, 3:33pm UTC](https://forums.syntaur.com/t/ensoniq-esq-1-filter-tuning-zero-and-almost-no-sound/448 "2021-03-31T15:33:39Z")
Hi everyone, I’ve got an Ensonic ESQ-1 that has a couple of problems. I’ve followed some advice found in the gearsluts forum, but so far without noticable improvement. So I hope to find some help here. First of all, it’… --- ## [Ensoniq ESQ-1 Metal Scrambled Sound](https://forums.syntaur.com/t/ensoniq-esq-1-metal-scrambled-sound/446)
**Author:** [@seaweedfactory](https://forums.syntaur.com/u/seaweedfactory)\ **Replies:** 4\ **Last updated:** [March 31, 2021, 11:53am UTC](https://forums.syntaur.com/t/ensoniq-esq-1-metal-scrambled-sound/446 "2021-03-31T11:53:22Z")
Hello all, thanks for taking the time to read this. I am trying to revive 1986 metal Ensoniq ESQ-1. I’ve created a video showing the current state of the synth. You can see it here: When I turned it on i… --- ## [SQ80 Overheating](https://forums.syntaur.com/t/sq80-overheating/289)
**Author:** [@rationalemusic](https://forums.syntaur.com/u/rationalemusic)\ **Replies:** 28\ **Last updated:** [January 16, 2021, 4:03pm UTC](https://forums.syntaur.com/t/sq80-overheating/289 "2021-01-16T16:03:33Z")
So the power supply on my SQ80 has been overheating. After a while the whole keyboard will lock up with no response to either the keys or panel buttons/sliders. If I restart it, it will work for a short time before overh… --- ## [ESQ1 restoration](https://forums.syntaur.com/t/esq1-restoration/1271)
**Author:** [@garp](https://forums.syntaur.com/u/garp)\ **Replies:** 16\ **Last updated:** [March 3, 2020, 8:59am UTC](https://forums.syntaur.com/t/esq1-restoration/1271 "2020-03-03T08:59:39Z")
Hi everyone ! First post here from a french analog synths addict. I have recently restored a plastic esq1 that was “abandoned” in a corner. At first it was not powering on, so i decided to make a full recap and restorati… --- ## [Esq-1 noisy output, low volume and eeprom cartridge unresponsive](https://forums.syntaur.com/t/esq-1-noisy-output-low-volume-and-eeprom-cartridge-unresponsive/1034)
**Author:** [@Plutomadre](https://forums.syntaur.com/u/Plutomadre)\ **Replies:** 34\ **Last updated:** [October 11, 2019, 12:27am UTC](https://forums.syntaur.com/t/esq-1-noisy-output-low-volume-and-eeprom-cartridge-unresponsive/1034 "2019-10-11T00:27:36Z")
Hello everyone. New owner of a plastic esq-1 3.4. In pretty good condition except it’s output is low and has digital artifacts. I can juice my interface pre amps up 30db and lower the volume fader on the esq-1 to get it … --- ## [Ensoniq KT76 key](https://forums.syntaur.com/t/ensoniq-kt76-key/803)
**Author:** [@albert](https://forums.syntaur.com/u/albert)\ **Replies:** 4\ **Last updated:** [May 24, 2019, 4:05pm UTC](https://forums.syntaur.com/t/ensoniq-kt76-key/803 "2019-05-24T16:05:45Z")
Hey Y’all, Trying to get nasty mechanical sounds out of the KT76, broken parts came out. Some hammer weights I’m happy to find here ( Hammer weight, white key - Syntaur ) I might need some keys. But I am not familiar w…