UNIDENTIFIED
EGA-PC/D SM
Category | Video |
Video Types Supported | CGA, monochrome, EGA |
Video Processor | Unidentified |
Highest Resolution Supported | 800 x 600 |
Data Bus Type | 8-bit ISA |
Memory Type | DRAM |
Maximum Onboard Memory | Unidentified |
CONNECTIONS | |||
Purpose | Location | Purpose | Location |
9-pin digital video port | CN1 | VESA Feature connector | J1 |
RCA video connector | CN2 | Replaceable oscillator | OSC3 |
RCA video connector | CN3 |
FACTORY CONFIGURED SETTINGS | |
Jumper | Setting |
SW1/7 | Off |
SW1/8 | Off |
MONITOR TYPE | ||
Setting | P1 | |
» | ECD | Pins 2 & 3 closed |
RGB or monochrome | Pins 1 & 2 closed |
I/O ADDRESS RANGE | ||
ADDRESS RANGE | P3 | |
» | 3xxh | Pins 2 & 3 closed |
2xxh | Pins 1 & 2 closed |
AUTOMODE | |||
Setting | P4 | P6 | |
» | Enabled | Pins 1 & 2 closed | Pins 2 & 3 closed |
Disabled | Pins 2 & 3 closed | Pins 1 & 2 closed |
EXPANSION SLOT SELECTION | ||
Type | P5 | |
» | Other | Pins 1 & 2 closed |
IBM PC slot 8 | Pins 2 & 3 closed |
SINGLE MONITOR CONFIGURATIONS | |||||
Setting | SW1/1 | SW1/2 | SW1/3 | SW1/4 | |
» | ECD high resolution | Off | On | On | Off |
RGB 40 x 25 | On | Off | Off | On | |
RGB 80 x 25 | Off | Off | Off | On | |
ECD low resolution | On | On | On | Off | |
Monochrome | Off | Off | On | Off |
CARD ATTACHED TO PRIMARY MONITOR CONFIGURATIONS | |||||
Primary/Secondary Monitor | SW1/1 | SW1/2 | SW1/3 | SW1/4 | |
» | ECD high resolution/monochrome | Off | On | On | Off |
RGB 40 x 25/monochrome | On | Off | Off | On | |
RGB 80 x 25/monochrome | Off | Off | Off | On | |
ECD low resolution/monochrome | On | On | On | Off | |
Monochrome/RGB 80 x 25 | Off | Off | On | Off | |
Monochrome/RGB 40 x 25 | On | Off | On | Off |
CARD ATTACHED TO SECONDARY MONITOR CONFIGURATIONS | ||||
Primary/Secondary Monitor | SW1/1 | SW1/2 | SW1/3 | SW1/4 |
RGB 40 x 25/monochrome | On | On | Off | On |
RGB 80 x 25/monochrome | Off | On | Off | On |
Monochrome/ECD low resolution | On | Off | On | On |
Monochrome/ECD high resolution | Off | Off | On | On |
Monochrome/RGB 40 x 25 | On | On | On | On |
Monochrome/RGB 80 x 25 | Off | On | On | On |
POWER-ON MODE | |||
Resolution/Monitor type | SW1/5 | SW/6 | |
» | EGA/all | On | On |
MDA-Hercules/ECD-monochrome | Off | On | |
CGA/ECD-RGB | On | Off |
MISCELLANEOUS NOTES |
OSC3 must be replaced with a 19.5 MHz oscillator when the card is configured for Hercules mode. |
OSC3 must be removed when the VESA feature connector (J1) is used. |