Kurzweil K2500 - PERFORMANCE GUIDE REV F PART NUMBER 910252 CHAP 9 Maintenance And Troubleshooting Manual page 6

Maintenance and Troubleshooting
Troubleshooting
Left MIX output seems louder than Right MIX output when used individually.
Volume knob has no effect.
Programs, Setups, Songs, etc. are missing.
LCD is too dark or too light to read.
Cannot mount or read disk.
Cannot write floppy disk.
Cannot format disk.
9-6
1 This is normal. When a cable is plugged into the left MIX output alone,
both the left AND the right audio signals are routed to the jack. When a
cable is plugged into right MIX output alone, only the right channel audio
signal is heard.
1 Separate outputs are in use - the volume knob does not affect the separate
outputs.
2 MIDI volume has been assigned to a control source which has sent a value
of 0.
1 Batteries have run down or have been disconnected. If the batteries have
failed, the message "Battery voltage is low - X.X volts" (where X.X is less
than 3.0) will appear in the display on power-up. All user data will be per-
manently lost if this occurs. See the information on battery selection and
replacement elsewhere in this manual.
1 Contrast not adjusted. Select Master mode and adjust the Contrast param-
eter. If this fails, hold the ENTER button and turn the alpha wheel clock-
wise to make display darker; counterclockwise to make it lighter. Then
adjust the Master mode Contrast parameter to a higher value if the LCD
was too light, or to a lower value if it was too dark.
1 Disk is not MS-DOS (or Akai, Ensoniq, or Roland) format.
2 Disk is damaged.
1 Disk is not MS-DOS formatted.
2 Disk write protected.
3 Sample is copy protected.
4 Disk is damaged.
1 Disk is damaged.
2 Disk is write protected.
3 You have instructed the K2500 to format a Double density (720K) disk as
a high-density (1.4M) disk. NOTE: Punching a hole in a double-density
disk case to try to make the K2500 read it as a high-density disk is not rec-
ommended.