Korg MONOLOGUE Service Manual

How to find fault location of synthesizer circuit in KLM-
3621 PCB
Monologue have test mode for checking all functions. By using test mode, you can get hints where to
repair in big minilogue synthesizer circuit. Please use it as a reference.
1. Turning on the power of monologue while pressing EXIT and STEP 3 switches. Monologue will
start in service mode.
2. Please hold EDIT MODE and EXIT for skipping the process of all check. And press EXIT twice
for selecting I-05: -TUNE-.
3. Please press STEP 16 switch while being displayed I-05: -TUNE-. If there is something wrong
in synthesizer circuit, error message will be displayed. Please check attached error code reference
for repairing KLM-3621.

Korg MONOLOGUE Specifications

General

Product type	Analog synthesizer
Product color	Silver
User presets quantity	20
Keyboard number of keys	25
Preset programs quantity	80
Display type	OLED
Built-in display	Yes
Headphone outputs	1
Battery type	AA
Operating time	8 h
DC input voltage	9 V
Power source type	AC, Battery
Number of batteries supported	6

Weight and Dimensions

Depth	276 mm
Width	350 mm
Height	76 mm
Weight	1700 g