Korg m50-73 User Guide

Could the level of the Master Volume following the 
total effect have been lowered? 

→ PG p.71, p.118, p.180

Could the total polyphony be exceeding the maximum 
polyphony of 80 voices? 

→ PG p.21, p.234

In Prog P1: Basic/Ctrls– Key Zone/Scale, select the 
Program Basic page, make sure that the Hold check 
box is unchecked. 

→ PG p.17

Did you use Tone Adjust to turn Hold on? 

→ PG p.9

In Global P2: Controller, make sure that Damper 
Polarity

 or Foot Switch Polarity is set correctly. 

→ PG p.228
If the DRUM TRACK ON/OFF or ARP ON/OFF 
switches are turned on, try turning them off.

Is Local Control turned Off?

• Clear the Local Control On checkbox (Global P1: 

MIDI). 

→ PG p.220

When using the MIDI/Tempo Sync function to control 
the delay time of an effect, noise may occur in the delay 
sound. This noise is due to discontinuities in the delay 
sound, and is not a malfunction.
Some effects, such as 017: Stereo Analog Record, 
generate noise intentionally. It is also possible to create 
oscillation using a filter with resonance. These are not 
malfunctions.
Note that if you use the following effects with the 
routing described below, a feedback loop will be 
created, possibly producing a loud noise. Please use 
caution.
If the signal from an oscillator or timbre/track output, 
or the signal after an insert effect, is sent to the FX 
Control bus and that signal is output directly, with this 
output sent to the FX Control bus, a loud noise may be 
output. (It is also possible that a DC component will be 
output at the maximum level, producing silence.)

• When using the 002: Stereo Limiter or 005: Stereo 

Gate, and the Envelope Source of these effects is set 
as either FX Control 1 or FX Control 2, and Trigger 
Monitor

 is On.

• When using 156: Vocoder, with the Modulator 

Source set to FX Control 1 or FX Control 2, and the 
Modulator High Mix

 set to other than 0.

Could the program’s Voice Assign Mode be set to 
Mono? 

→ PG p.15

• In the Global P0: Basic Setup page, are the Master 

 and Transpose settings correct? 

→ PG p.216

• In the Prog P2: OSC/Pitch page, is the Pitch Slope 

set to +1.0? 

→ PG p.23

• In the combination or song, are the Transpose and 

 settings of each timbre/track set 

appropriately? 

→ PG p.97, p.153

• In the timbre/track settings of each program, 

combination, or song, could you have selected a 

non-standard scale type other than Equal 
Temperament? 

→ PG p.17, p.98, p.154

Make sure that the Oscillator Mode (Prog P1: Basic/
Ctrls) parameter is set to Double. 

Could the oscillator or amp level be lowered? 

→ PG p.4, p.5, p.41

In the dialog box when you saved the data, did you 
check the items that you wanted to save? 

→ PG p.267

Are the bank/numbers of the programs used by the 
combination the same as when the combination was 
created?

• If you have switched program banks, you can use 

the Change all bank references menu command to 
change the program bank for each timbre of a 
combination. 

→ PG p.251

Is the Memory Protect Program or Combination 
checkbox (Global P0) cleared? 

In the dialog box when you saved the data, did you 
check all of the items that you wanted to save? 

→ PG p.267
Are the programs used by the song the same as when 
the song was created?

• If you have switched program banks, you can use 

the menu command Change all bank references to 
change the program bank for each track of a song. 

→ PG p.251

• When saving the song, it is best to use Save All 

 so that the programs are saved 

together with the song. Then when loading, load 
both the .PCG and the .SEQ data. 

→ PG p.267

Is the MIDI Clock (Global P1: MIDI) set to Internal or 
Auto? 

→ PG p.221

Did you use Track Select to select the MIDI track that 
you want to record? 

Is the Memory Protect Song check box (Global P0) 
unchecked?