CORONA COMPUTER CORPORATION
400 HDC
Data bus: 8-bit, ISA
Size: Full-length, full-height card
Hard drives supported: Two MFM ST506 drives
Floppy drives supported: Two 360KB, 720KB, 1.2MB, or 1.44MB
| 
 CONNECTIONS  | |
| 
 Function  | 
 Location  | 
| 
 20-pin data cable connector-drive 1  | 
 CN1  | 
| 
 20-pin data cable connector-drive 0  | 
 CN2  | 
| 
 34-pin control cable connector-hard drive  | 
 CN3  | 
| 
 DRIVE TYPE COFIGURATION - SW1  | |||||||
| 
 Heads  | 
 Cyl.  | 
 Switch 1  | 
 Switch 2  | 
 Switch 3  | 
 Switch 4  | 
 Switch 5  | 
 Switch 6  | 
| 
 2  | 
 612  | 
 on  | 
 off  | 
 off  | 
 on  | 
 on  | 
 on  | 
| 
 4  | 
 306  | 
 on  | 
 off  | 
 off  | 
 off  | 
 off  | 
 off  | 
| 
 4  | 
 306  | 
 off  | 
 off  | 
 off  | 
 off  | 
 off  | 
 off  | 
| 
 4  | 
 612  | 
 on  | 
 on  | 
 on  | 
 off  | 
 off  | 
 off  |