COMPAQ COMPUTER CORPORATION
SOUND BOARD
|
Card Type |
Sound card |
|
Chipset Controller |
Unidentified |
|
I/O Options |
Line in, Microphone in (2), volume control, stereo speaker out (2), mono speaker out, game/MIDI port, SCSI CD-ROM interface, CD-ROM audio out, PC speaker in |
|
Maximum Dram |
N/A |
|
CONNECTIONS | |||
|
Purpose |
Location |
Purpose |
Location |
|
Line in |
J1 |
Molex-D 4 audio out |
J6 |
|
Microphone in |
J2 |
Right (mono) speaker out |
J7 |
|
Stereo speaker out |
J3 |
Audio I/O (see table below) |
J8 |
|
Game/MIDI port |
J4 |
PC Speaker in |
J9 |
|
SCSI CD-ROM interface |
J5 |
Volume control |
R1 |
|
CONNECTOR J8 | |||
|
Purpose |
Pin |
Purpose |
Pin |
|
Microphone in ground |
1 |
Right speaker out |
5 |
|
Microphone in ground |
2 |
Left speaker out |
6 |
|
Microphone in |
3 |
Right speaker return |
7 |
|
Speaker out ground |
4 |
Left speaker return |
8 |
|
INTERNAL AUDIO AMPLIFIER CONFIGURATION | ||
|
» Left amp |
Right amp |
JP5 |
|
» Enabled |
Enabled |
Pins 2 & 3, 5 & 6 closed |
|
» Disabled |
Disabled |
Pins 1 & 2, 4 & 5 closed |
|
BASE I/O ADDRESS FOR MIDI PORT SELECTION | |
|
» Address |
JP4 |
|
» 330h |
Pins 1 & 2 closed |
|
» 300h |
Pins 1 & 2 open |
|
BASE I/O ADDRESS FOR SOUND CARD SELECTION | |
|
» Address |
JP6 |
|
» 220h |
Pins 7 & 8, 9 & 10 closed |
|
» 240h |
Pins 9 & 10 closed |
|
» 260h |
Pins 7 & 8 closed |
|
» 280h |
Pins 7 & 8, 9 & 10 open |
|
BASE I/O ADDRESS FOR SCSI INTERFACE SELECTION | |
|
» Address |
JP7 |
|
» 340h |
Open |
|
» 140h |
Closed |
|
INTERRUPT FOR SCSI INTERFACE SELECTION | |
|
» IRQ |
JP3 |
|
» 9 |
Pins 1 & 2 closed |
|
» 10 |
Pins 3 & 4 closed |
|
» 11 |
Pins 5 & 6 closed |
|
» 12 |
Pins 7 & 8 closed |
|
INTERRUPT FOR SOUND CARD SELECTION | |
|
» IRQ |
JP4 |
|
» 2 |
Pins 11 & 12, 13 & 14 closed |
|
» 5 |
Pins 13 & 14 closerd |
|
» 7 |
Pins 11 & 12 closed |
|
» 10 |
Pins 11 & 12, 13 & 14 open |
|
GAME PORT CONFIGURATION | |
|
» Port |
JP6 |
|
» Enabled |
Pins 5 & 6 closed |
|
» Disabled |
Pins 5 & 6 open |
|
8-BIT DMA CHANNEL FOR SOUND CARD SELECTION | |
|
» Channel |
JP4 |
|
» 0 |
Pins 3 & 4, 5 & 6 closed |
|
» 1 |
Pins 5 & 6 closed |
|
» 3 |
Pins 3 & 4 closed |
|
16-BIT DMA CHANNEL FOR SOUND CARD SELECTION | |
|
» Channel |
JP4 |
|
» 5 |
Pins 7 & 8, 9 & 10 closed |
|
» 6 |
Pins 9 & 10 closed |
|
» 7 |
Pins 7 & 8 closed |
|
DMA CHANNEL FOR SCSI INTERFACE SELECTION | ||
|
» Channel |
JP1 |
JP2 |
|
» 0 |
Pins 1 & 2 closed |
Pins 1 & 2 closed |
|
» 5 |
Pins 3 & 4 closed |
Pins 3 & 4 closed |
|
» 6 |
Pins 5 & 6 closed |
Pins 5 & 6 closed |
|
» 7 |
Pins 7 & 8 closed |
Pins 7 & 8 closed |