DTK COMPUTER, INC.
PTM-1000 (V1)
| 
 Processor  | 
 80286  | 
| 
 Processor Speed  | 
 10MHz  | 
| 
 Chip Set  | 
 None  | 
| 
 Max. Onboard DRAM  | 
 1MB  | 
| 
 Cache  | 
 None  | 
| 
 BIOS  | 
 DTK  | 
| 
 Dimensions  | 
 333mm x 222mm  | 
| 
 I/O Options  | 
 None  | 
| 
 NPU Options  | 
 80287  | 
| 
 CONNECTIONS  | |||
| 
 Purpose  | 
 Location  | 
 Purpose  | 
 Location  | 
| 
 Speaker  | 
 J17  | 
 Turbo switch  | 
 J23  | 
| 
 Power LED & keylock  | 
 J19  | 
 External battery  | 
 J24  | 
| 
 Turbo LED  | 
 J21  | 
 Reset switch  | 
 SW2  | 
| 
 USER CONFIGURABLE SETTINGS  | |||
| 
 Function  | 
 Jumper  | 
 Position  | |
| » | 
 Monitor type select color  | 
 J2  | 
 pins 1 & 2 closed  | 
| 
 Monitor type select monochrome  | 
 J2  | 
 pins 2 & 3 closed  | |
| » | 
 DRAM speed select 0 wait states  | 
 J25  | 
 Open  | 
| 
 DRAM speed select 1 wait state  | 
 J25  | 
 Closed  | |
| » | 
 Base memory size select 512KB  | 
 J26  | 
 pins 1 & 2 closed  | 
| 
 Base memory size select 640KB  | 
 J26  | 
 pins 2 & 3 closed  | |
| 
 Note:Base memory size select jumper (J26) is only functional when 1MB of DRAM is installed.  | |||
| 
 DRAM CONFIGURATION  | ||
| 
 Size  | 
 Bank 0  | 
 Bank 1  | 
| 
 512KB  | 
 (18) 41256  | 
 NONE  | 
| 
 640KB  | 
 (18) 41256  | 
 (18) 4164  | 
| 
 1MB  | 
 (18) 41256  | 
 (18) 41256  | 
| 
 DRAM JUMPER CONFIGURATION  | |
| 
 Size  | 
 J18  | 
| 
 512KB  | 
 pins 2 & 3 closed  | 
| 
 640KB  | 
 pins 1 & 2 closed  | 
| 
 1MB  | 
 pins 2 & 3 closed  | 
| 
 BIOS CONFIGURATION  | ||||
| 
 Size  | 
 SW1/1  | 
 SW1/2  | 
 SW1/3  | 
 SW1/4  | 
| 
 27128  | 
 On  | 
 On  | 
 Off  | 
 Off  | 
| 
 27256  | 
 Off  | 
 Off  | 
 On  | 
 On  |