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# STB SYSTEMS, INC.
CHANNEL ONE
Category Video
Video Types Supported XVGA
Video Processor Unidentified
Highest Resolution Supported 1280 x 1024
Data Bus Type 16-bit ISA
Memory Type DRAM
Maximum Onboard Memory 1MB
IMG IMG 1
+------------------------------------------------------------+
| CONNECTIONS |
|------------------------------------------------------------|
| Purpose | Location | Purpose | Location |
|---------------+----------+----------------------+----------|
| 15-pin analog | CN1 | Coax connector | CN4 |
| video port | | | |
|---------------+----------+----------------------+----------|
| VGA feature | CN2 | Refresh signal | P4 |
| connector | | synchronization | |
| | | connector | |
|---------------+----------+----------------------+----------|
| S-video | CN3 | | |
| connector | | | |
+------------------------------------------------------------+
+------------------------------------------------------------+
| ZERO WAIT-STATE MEMORY SELECTION |
|------------------------------------------------------------|
| Setting | J2 |
|----------------------------+-------------------------------|
| » | Disabled | Pins 2 & 3 closed |
|---+------------------------+-------------------------------|
| | Enabled | Pins 1 & 2 closed |
+------------------------------------------------------------+
+------------------------------------------------------------+
| INTERRUPT SELECTION |
|------------------------------------------------------------|
| IRQ 2 | J3 |
|----------------------------+-------------------------------|
| » | Disabled | Pins 2 & 3 closed |
|---+------------------------+-------------------------------|
| | Enabled | Pins 1 & 2 closed |
+------------------------------------------------------------+
+------------------------------------------------------------+
| COLOR TYPE SELECTION |
|------------------------------------------------------------|
| Type | J4 |
|----------------------------+-------------------------------|
| Color | Pins 1 & 2 closed |
|----------------------------+-------------------------------|
| Mono | Pins 2 & 3 closed |
+------------------------------------------------------------+
+------------------------------------------------------------+
| ZERO WAIT-STATE BIOS SELECTION |
|------------------------------------------------------------|
| Setting | J5 |
|----------------------------+-------------------------------|
| » | Disabled | Pins 2 & 3 closed |
|---+------------------------+-------------------------------|
| | Enabled | Pins 1 & 2 closed |
+------------------------------------------------------------+
+------------------------------------------------------------+
| BIOS INTERFACE SELECTION |
|------------------------------------------------------------|
| Setting | J6 |
|----------------------------+-------------------------------|
| » | 8-bit | Pins 2 & 3 closed |
|---+------------------------+-------------------------------|
| | 16-bit | Pins 1 & 2 closed |
+------------------------------------------------------------+
+------------------------------------------------------------+
| CRYSTAL FREQUENCY SELECTION |
|------------------------------------------------------------|
| Setting | J7 |
|----------------------------+-------------------------------|
| » | Master | Pins 1 & 2 closed |
|---+------------------------+-------------------------------|
| | Slave | Pins 2 & 3 closed |
+------------------------------------------------------------+
+------------------------------------------------------------+
| BOARD INDENTIFICATION SELECTION |
|------------------------------------------------------------|
| Dial switch block SW1 on each adapter determines the board |
| number and I/O address selection. |
+------------------------------------------------------------+