KORG Monotron Teardown

Written By: Carlo Romagnoli

Published: 24/08/18

Comments: 0

KORG Monotron Teardown

Published: 24/08/18

Teardown

Introduction

This teardown will help you to better hack and repair the KORG Monotron mini synt.

This battery powered synt is made of a real analog VCO a VCF and a LFO. The VCF is similar to the ancient KORG's classic MS-10 and MS-20. You can use the ribbon keyboard to create an incredible sound of the '70s .

There are a lot of infos on internet but this device deserves an appropriate space on IFIXIT

Tools

Phillips #1 Screwdriver

Step 1

Here it is.... the Monotron !!!
LM324 as low power op amp
TPA6111A2DR as a stereo audio power amp.
TPS61071 as a synchronous boost converter (power supply chain) from 2 AAA battery
SN74AHC14 hex Schmitt-Trigger
2SC4617 npn bjt, 2SA1774 pnp bjt, 2SK433 fet, IMX9 double bjt

Step 2

Only 4 PH1 screws
Note: Made in Japan !
Take care at the cables between two sides

Step 3

Remove '''the flat cable''' from the ribbon controller to the pcb (pull with care using hands)
Remove the 2 ways connector for the speaker. Use hands (with care)
Take max care to the speaker controller. Easy to remove but difficult to re insert