# CT-605 Accompaniment Not Working—ISO service manual

**URL:** <https://forums.syntaur.com/t/ct-605-accompaniment-not-working-iso-service-manual/9240>\
**Category:** Synth Repair\
**Tags:** casio, ct-605, no-audio\
**Created:** [December 2, 2025, 2:24pm UTC](https://forums.syntaur.com/t/ct-605-accompaniment-not-working-iso-service-manual/9240 "2025-12-02T14:24:58Z")\
**Posts on this page:** 1\
**Showing post:** 3

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**Author:** ![nomadicrust](https://forums.syntaur.com/letter_avatar_proxy/v4/letter/n/7bcc69/32.png) [@nomadicrust](https://forums.syntaur.com/u/nomadicrust)\
**Post date:** [December 20, 2025, 4:35am UTC](https://forums.syntaur.com/t/ct-605-accompaniment-not-working-iso-service-manual/9240/3 "2025-12-20T04:35:11Z")

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Thanks Jeremy! Appreciate that. I have (most likely) narrowed it down to a faulty tempo fader—but unfortunately have had no luck sourcing the slide pot i need to replace it. Updated post is available here:

> [@Seeking: 1MOhm "C" (Reverse Audio/Log) Taper Slide Potentiometer](https://forums.syntaur.com/t/seeking-1mohm-c-reverse-audio-log-taper-slide-potentiometer/9270):
>
> [CASIO] [CT-605] – [Seeking Replacement Tempo Fader] Hey y’all, Seeking a slide potentiometer with the following specs, as used on the Casio CT-605 and the Korg DW-6000: Resistance: 1MOhm Physical length: 45mm Travel distance: 30mm Taper: Reverse Audio (C) Gang: Single I have reached out to a few different places (including Syntaur) and unfortunately no dice, beyond buying a whole PCB from the Korg model to desolder the slide pot from. Does anyone have a suitable replacement part? Thank …

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