D-2 Sound Board Jumper Settings
FACTORY SETTINGS
Factory settings for the sound board are as follows.
Sound Board Jumper Settings — Factory Settings
FUNCTION
JUMPER
LOCATION
FACTORY SETTING
MIDI interface base I/O address MSEL jumpered 330H
Joystick connector JYEN jumpered enabled
Audio low DMA channel DAS0
DAS1
not jumpered
jumpered
1
Audio high DMA channel DBS0
DBS1
jumpered
jumpered
5
Audio base I/O address IOS0
IOS1
jumpered
jumpered
220H
Audio interface interrupt IS0
IS1
not jumpered
jumpered
IRQ5*
MIDI interface MPUEN jumpered enabled
*Sound board driver software sets the audio interface interrupt to IRQ7. The driver software IRQ7
setting overrides the sound board IS0 and IS1 jumper settings.
The following figure shows jumper locations. Descriptions
of the jumper settings follow the figure.
Check the settings for your particular requirements. If you
need to change the settings, use the procedure that follows
the figures.
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