Master Flatpick

Appendix B: Troubleshooting & Drivers 51
MIDI SOUND
MIDI Input Driver Not Working
If
MIDI output is not working
, then you must resolve that problem first,
otherwise, you won't be able to tell if you fixed the INPUT problem.
If Output is Working but Input is not working:
If output is working then your port address setting is definitely correct.
The cause of no input in this situation is an IRQ problem. The IRQ handles input
from a MIDI device to your MIDI interface. You need to ensure that the IRQ
setting on the card matches the IRQ setting in the Control Panel | Drivers program
by pressing the SETUP button to examine the IRQ setting. You need to remove
the card from the computer to see what IRQ is setup.
If MIDI input "sort of works" - but has a considerable delay in it - this indicates
that the IRQ you have set in the Control Panel doesn't match the IRQ on the card.
In this case, change the IRQ in the Control Panel to match your IRQ setting on the
card.
MPU401 defaults to port=330 and IRQ=2/9. Other common IRQ settings are 7
and 5.
IRQ2 is referred to as IRQ 2/9. This is normal.
Your synth is not connected to your MIDI Interface properly.
Your Driver is not installed properly into Windows Control Panel.
The Driver is installed but the IRQ number (from the SETUP button) is incorrect.
You don't have the MIDI In Driver selected properly inside of the program.
Output Driver Not Working
For output to be heard, the following must be working properly.
GMCLASS.EXE must be hooked up to the correct output driver in the FILE
| OPTIONS | MIDI DRIVERS setup.
The Driver must be installed before hand into the Windows Control
Panel/Multimedia Drivers Program.