Test 2: Keys
Press the keys with medium playing strength, strictly in the sequence as marked with a red arrowhead in
the picture below. If the currently checked key is OK, the LEDS will light green, and it will send note
on/off message. However, if you have pressed the right key but your playing strength is either too strong
or too weak, the LEDS will light red and it will NOT send any note on/off message.
After all the keys are passed, hold down the [ADVANCE] button, then press [OCT+] to switch to Test 5
(ADC).
Test 3: ADC
Volume slider
: Slide it all the way to the top, the LEDS light orange, then slide it all the way to the
bottom, the value will reach 0 and the LEDS will light green.
Pitch bend
: Push the wheel all the way to the top, the LEDS show orange, then release the wheel, the
LEDS will light red. Push the wheel all the way to the bottom, and when the value reaches 0, the LEDS
will light green.
Mod weel
: Push the wheel all the way to the top, the LEDS light orange, then push the wheel all the way
to the bottom,, the value will reach 0 and the LEDS will light green..
Diagnosis
15
Summary of Contents for Keystation 88 MK3
Page 5: ...SERVICE MANUAL MIDI KEYBOARD Keystation 88 MK3 ...
Page 8: ...General Exploded Drawing and List 4 ...
Page 9: ...Main Board Schematic Circuit Boards 5 ...
Page 10: ...Function Board Schematic 1 Function Board Schematic 6 Circuit Boards ...
Page 15: ...Main Board T O P Main Board BO T PCB Boards 11 ...
