First post, by Predator99
Quick presentation of my Heath P/N 150-307-3 Rev 1.33 and P/N 150-307-2 Rev 1.32 8-bit Video cards before going back to storage...
After Anonymous Coward made me aware its EGA not VGA I took a closer look at them. I think its quite unusual as other cards with EGA/VGA connectors are VGA but support EGA monitors, like the ET3000 cards. So these ones are different.
Jumper setting for VGA display:
1 open
2 close
3 close
4 open
5 open
6 close
BIOS dumps:
IBM EGA COMPATIBLE.*ZENITH Z449 ADVANCED GRAPHICS ADAPTER V1.594
(C)Copyright Sigma Designs, Inc 1985,1986
Some interesting text inside:
WARNING:Emulation HW was ON but may have been blocked.
WARNING:Emulation HW ON & SW installed but NMIs are not happening.
WARNING:Emulation HW ON but SW NOT installed
NMIs may be turned off.
WARNING:Emulation HW & SW are not consistent.
Emulation Hardware is not responding.
Color Graphics
Hercules Graphics
Emulation
Screen Timeout is
Board incompatible with software.
In memory version is different than this version. ON.
OFF.
is not active.
set for 5 minutes.
Color Graphics Mode not allowed with Color Adapter.
Monochrome Mode not allowed with Monochrome Adapter.
Single plane graphics allowed (HALF).
Double plane graphics allowed (FULL).
Monochrome Graphics not allowed on Color Display.
Color Graphics not allowed on Monochrome Display.
Coprocessor switch set but coprocessor not responding.
Check coprocessor switch on system board.
Auto Mode Hard Mode
Usage is: action
Where action can be:
CGA ON - Enable Color Graphics Mode
CGA OFF - Disable Color Graphics Mode
HGC ON - Enable Monochrome Graphics Mode
HGC OFF - Disable Monochrome Graphics Mode
HGC HALF - Enable Single Plane Monochrome Graphics Mode
HGC FULL - Enable Double Plane Monochrome Graphics Mode
HGC DIAG - Disable Monochrome Graphics Mode
MONO ON - Enable Monochrome mode
MONO OFF - Disable Monochrome mode
AUTO ON - Enable Color or Monochrome Graphics AutoMode
AUTO OFF - Disable Color or Monochrome Graphics AutoMode
SCRNSAV ON - Enable Screen Save feature (5 Min default)
SCRNSAV OFF - Disable Screen Save feature
SCRNSAV ## - Enable Screen Save feature (## Min default)
[/i]
They do not support 256 colors, but the 640x480x16 VGA mode, so its possible to run Windows in VGA resolution. Same as for other C&T EGA cards.
Xenon 320x200x16