Digital Equipment FR-902AA-A3, Service Maintenance Manual

Page: 76 / 86

Service Notes Digital STARION 400I -900i PC
76 MCS Logistics Engineering - Nijmegen
Sound Card Settings
Sound card settings are defined using the board's JB1 jumper block, containing jumpers J1 through J14.
Factory-default settings are given in Bold Italics
I/O Address IRQ Setting DMA Channel
I/O Jumpers IRQ Jumpers DMA Jumpers
220 J2, J4 jumpered IRQ5 J6-J7 jumpered
0 J10-J11 jumpered
230 J2-J3 jumpered IRQ7 J5, J8 jumpered
1 J9,J12 jumpered
240 J1, J4 jumpered IRQ7 J5, J8 jumpered
3 J9,J11 jumpered
250 J1, J3 jumpered IRQ7 J5, J8 jumpered
none J10-J12 jumpered
IRQ9 J6, J8 jumpered
IRQ10 J5, J7 jumpered
Disabling Fax/Modem/Sound Board Features
It might be necessary to disable certain functions of the factory-installed fax/modem/sound card to allow a
separately installed joystick, modemand/or sound card to operate correctly. The following jumper settings
can be used for this purpose. Factory default settings are given in Bold Italics.
Feature Jumper Block Setting Jumper
Joystick JB1 Enabled
Disabled J13 jumpered
J14 jumpered
Fax/Modem JB4 Enabled
Disabled J1 jumpered
J2 jumpered
Sound JB5 Enabled
Disabled J1 jumpered
J2 jumpered