LASER COMPUTER, INC.
LASER 286S
|
Processor |
80286 (exact location unidentified) |
|
Processor Speed |
16MHz |
|
Chip Set |
Unidentified |
|
Maximum Onboard Memory |
4MB |
|
Cache |
None |
|
BIOS |
AMI |
|
Dimensions |
330mm x 218mm |
|
I/O Options |
Floppy drive interface, game port, IDE interface, parallel port, serial ports (2), riser slot |
|
NPU Options |
80287 |
|
CONNECTIONS | |||
|
Function |
Label |
Function |
Label |
|
Front panel connector |
J4 |
IDE interface |
J10 |
|
Parallel port |
J5 |
Floppy drive interface |
J12 |
|
Game port |
J6 |
Speaker |
J15 |
|
Serial port 2 |
J7 |
IDE interface LED |
JP29 |
|
Serial port 1 |
J8 |
Riser slot |
SL1 |
|
External battery |
J9 | ||
|
USER CONFIGURABLE SETTINGS | |||
|
Setting |
Label |
Position | |
|
Parallel port IRQ select IRQ5 |
JP16 |
Pins 2 & 3 closed | |
|
Parallel port IRQ select IRQ7 |
JP16 |
Pins 1 & 2 closed | |
|
Game port enabled |
JP17 |
Closed | |
|
Game port disabled |
JP17 |
Open | |
|
Parallel port address select 378 - 37Fh |
JP21 |
Pins 1 & 2 closed | |
|
Parallel port address select 278 - 27Fh |
JP21 |
Pins 2 & 3 closed | |
|
IDE interface enabled |
JP28 |
Closed | |
|
IDE interface disabled |
JP28 |
Open | |
|
Floppy drive interface enabled |
JP33 |
Open | |
|
Floppy drive interface disabled |
JP33 |
Closed | |
|
Parity enabled |
JP34 |
Closed | |
|
Parity disabled |
JP34 |
Open | |
|
» |
Factory configured - do not alter |
SW2/4 |
N/A |
|
» |
Factory configured - do not alter |
SW2/5 |
N/A |
|
» |
Factory configured - do not alter |
SW2/6 |
N/A |
|
Wait state select 0 wait states |
SW2/7 |
Off | |
|
Wait state select 1 wait state |
SW2/7 |
On | |
|
DRAM | ||||||
|
Size |
Bank 0 |
Parity 0 |
Bank 1 |
Parity 1 |
Bank 2 |
Bank 3 |
|
512KB |
(4) 44256 |
(2) 41256 |
None |
None |
None |
None |
|
640KB |
(4) 44256 |
(2) 41256 |
(4) 4464 |
(2) 41256 |
None |
None |
|
1MB |
(4) 44256 |
(2) 41256 |
(4) 44256 |
(2) 41256 |
None |
None |
|
1152KB |
(4) 44256 |
(2) 41256 |
(4) 4464 |
(2) 41256 |
(2) 256K x 9 |
None |
|
1.5MB |
(4) 44256 |
(2) 41256 |
(4) 44256 |
(2) 41256 |
(2) 256K x 9 |
None |
|
1664KB |
(4) 44256 |
(2) 41256 |
(4) 4464 |
(2) 41256 |
(2) 256K x 9 |
(2) 256K x 9 |
|
2MB |
(4) 44256 |
(2) 41256 |
(4) 44256 |
(2) 41256 |
(2) 256K x 9 |
(2) 256K x 9 |
|
2MB |
None |
None |
None |
None |
(2) 1M x 9 |
None |
|
4MB |
None |
None |
None |
None |
(2) 1M x 9 |
(2) 1M x 9 |
|
DRAM SWITCH | |
|
Setting |
SW2/1 |
|
4464 installed in Bank 1 |
Off |
|
4464 not installed in Bank 1 |
On |
|
Note: Economic system uses DIP & SIMM memory and Deluxe system uses 1M x 9 SIMM memory. | |
|
DRAM SWITCH | ||
|
Setting |
SW2/2 |
SW2/3 |
|
Economic system |
On |
On |
|
Deluxe system |
Off |
Off |
|
Note: Economic system uses DIP & SIMM memory and Deluxe system uses 1M x 9 SIMM memory. | ||
|
DRAM SWITCH (ECONOMIC SYSTEM) | |||||
|
Bank 0 |
Bank 1 |
256K SIMM |
SW2/8 |
SW2/9 |
SW2/10 |
|
Installed |
Not installed |
Not installed |
On |
On |
On |
|
Installed |
Installed |
Not installed |
On |
On |
Off |
|
Installed |
Installed |
Bank 0 |
On |
Off |
On |
|
Installed |
Installed |
Banks 0 & 1 |
On |
Off |
Off |
|
DRAM SWITCH (DELUXE SYSTEM) | |||||
|
Bank 0 |
Bank 1 |
1M SIMM |
SW2/8 |
SW2/9 |
SW2/10 |
|
Not installed |
Not installed |
Bank 0 |
On |
On |
On |
|
Not installed |
Not installed |
Banks 0 & 1 |
On |
On |
Off |
|
SERIAL PORT IRQ | ||||
|
Serial port 1 |
Serial port 2 |
JP18 |
JP19 | |
| » |
IRQ4 |
IRQ3 |
Pins 2 & 3 closed |
Pins 1 & 2 closed |
|
IRQ3 |
IRQ4 |
Pins 1 & 2 closed |
Pins 2 & 3 closed | |
|
SERIAL PORT | ||||||
|
Serial port 1 |
Serial port 2 |
JP20 |
JP22 |
JP25 |
JP26 | |
| » |
COM1 |
COM2 |
1 & 2 |
2 & 3 |
N/A |
N/A |
|
COM1 |
COM3 |
1 & 2 |
N/A |
2 & 3 |
N/A | |
|
COM1 |
COM4 |
1 & 2 |
N/A |
N/A |
2 & 3 | |
|
COM2 |
COM1 |
2 & 3 |
1 & 2 |
N/A |
N/A | |
|
COM2 |
COM3 |
N/A |
1 & 2 |
2 & 3 |
N/A | |
|
COM2 |
COM4 |
N/A |
1 & 2 |
N/A |
2 & 3 | |
|
COM3 |
COM1 |
2 & 3 |
N/A |
1 & 2 |
N/A | |
|
COM3 |
COM2 |
N/A |
2 & 3 |
1 & 2 |
N/A | |
|
COM3 |
COM4 |
N/A |
N/A |
1 & 2 |
2 & 3 | |
|
COM4 |
COM1 |
2 & 3 |
N/A |
N/A |
1 & 2 | |
|
COM4 |
COM2 |
N/A |
2 & 3 |
N/A |
1 & 2 | |
|
COM4 |
COM3 |
N/A |
N/A |
2 & 3 |
1 & 2 | |
|
Note: Pins designated should be in the closed position. | ||||||