TWINHEAD INTERNATIONAL CORPORATION
CT-8490
| 
 Card Type  | 
 Video card  | 
| 
 Video Chip Set  | 
 Unidentified  | 
| 
 Maximum Video Memory  | 
 Unidentified  | 
| 
 Video Types Supported  | 
 Monochrome, CGA, EGA, VGA  | 
| 
 Highest Resolution Supported  | 
 800 x 600  | 
| 
 Data Bus  | 
 8-bit ISA  | 
| 
 CONNECTIONS  | |||
| 
 Function  | 
 Label  | 
 Function  | 
 Label  | 
| 
 VGA feature connector  | 
 CN1  | 
 9-pin TTL video connector  | 
 CN3  | 
| 
 15-pin Analog video connector  | 
 CN2  | ||
| 
 USER CONFIGURABLE SETTINGS  | |||
| 
 Function  | 
 Label  | 
 Position  | |
| » | 
 CT-8490 is primary display card  | 
 SW1/5  | 
 On  | 
| 
 CT-8490 is secondary display card  | 
 SW1/5  | 
 Off  | |
| 
 MONITOR TYPE SELECTION  | ||||
| 
 Monitor  | 
 SW1/1  | 
 SW1/2  | 
 SW1/3  | 
 SW1/4  | 
| 
 Monochrome  | 
 On  | 
 On  | 
 On  | 
 On  | 
| 
 CGA  | 
 Off  | 
 On  | 
 On  | 
 On  | 
| 
 EGA  | 
 On  | 
 Off  | 
 On  | 
 On  | 
| 
 VGA  | 
 On  | 
 On  | 
 On  | 
 Off  | 
| 
 Monochrome (PS/2)  | 
 Off  | 
 On  | 
 On  | 
 Off  | 
| 
 MultiSync TTL  | 
 Off  | 
 Off  | 
 On  | 
 On  | 
| 
 MultiSync analog  | 
 Off  | 
 On  | 
 On  | 
 Off  | 
| 
 DISPLAY MODE SELECTION  | |||
| 
 Setting  | 
 SW1/6  | 
 SW1/7  | 
 SW1/8  | 
| 
 Lock at monochrome display mode  | 
 On  | 
 Off  | 
 On  | 
| 
 Lock at CGA display mode  | 
 Off  | 
 On  | 
 On  | 
| 
 Lock at EGA display mode  | 
 On  | 
 On  | 
 Off  | 
| 
 Lock at VGA display mode  | 
 On  | 
 On  | 
 Off  | 
| 
 Lock at VGA display mode  | 
 On  | 
 On  | 
 Off  | 
| 
 Set at auto switch  | 
 On  | 
 On  | 
 On  | 
| 
 Set at auto switch  | 
 On  | 
 On  | 
 On  |