
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

[Image]

                               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        JP21          Pins 1 & 2
      - 37Fh                                                  closed

      Parallel port address select 278        JP21          Pins 2 & 3
      - 27Fh                                                  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)        (2)       None       None      None      None
              44256     41256

   640KB       (4)        (2)     (4) 4464      (2)      None      None
              44256     41256                 41256

    1MB        (4)        (2)        (4)        (2)      None      None
              44256     41256      44256      41256

  1152KB       (4)        (2)     (4) 4464      (2)       (2)      None
              44256     41256                 41256      256K x
                                                           9

   1.5MB       (4)        (2)        (4)        (2)       (2)      None
              44256     41256      44256      41256      256K x
                                                           9

  1664KB       (4)        (2)     (4) 4464      (2)       (2)       (2)
              44256     41256                 41256      256K x    256K x
                                                           9         9

    2MB        (4)        (2)        (4)        (2)       (2)       (2)
              44256     41256      44256      41256      256K x    256K x
                                                           9         9

    2MB       None       None       None       None      (2) 1M    None
                                                          x 9

    4MB       None       None       None       None      (2) 1M    (2) 1M
                                                          x 9       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            Not         On        On         On
                 installed     installed

  Installed      Installed         Not         On        On        Off
                               installed

  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            Not        Bank 0       On        On         On
   installed       installed

       Not            Not        Banks 0      On        On         Off
   installed       installed       & 1

                              SERIAL PORT IRQ

   Serial port 1      Serial port 2         JP18               JP19

         IRQ4             IRQ3           Pins 2 & 3        Pins 1 & 2
                                           closed             closed

          IRQ3             IRQ4           Pins 1 & 2        Pins 2 & 3
                                           closed             closed

                                SERIAL PORT

  Serial port 1     Serial       JP20       JP22       JP25       JP26
                   port 2

       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.

