MEMOREX TELEX CORPORATION
7045
|
Processor |
80286 |
|
Processor Speed |
8/12MHz |
|
Chip Set |
Unidentified |
|
Video Chip Set |
Unidentified |
|
Maximum Onboard Memory |
8MB |
|
Maximum Video Memory |
Unidentified |
|
Cache |
None |
|
BIOS |
Unidentified |
|
Dimensions |
330mm x 218mm |
|
I/O Options |
Floppy drive interface, parallel port, serial ports (2), VGA feature connector, VGA port |
|
NPU Options |
80287 |
|
CONNECTIONS | |||
|
Purpose |
Location |
Purpose |
Location |
|
VGA port |
J14 |
Power LED & keylock |
J20 |
|
Serial port 1 |
J15 |
External battery |
J21 |
|
Serial port 2 |
J16 |
Keyboard connector |
J22 |
|
Parallel port |
J17 |
Turbo switch |
J23 |
|
Reset switch |
J18 |
Floppy drive interface |
J24 |
|
Speaker |
J19 |
VGA feature connector |
J25 |
|
USER CONFIGURABLE SETTINGS | |||
|
Function |
Label |
Position | |
|
|
Factory configured - do not alter |
J13 |
Unidentified |
|
|
Serial port 1 IRQ select IRQ4 |
JP1 |
Pins 1 & 2 closed |
|
Serial port 1 IRQ select IRQ3 |
JP1 |
Pins 2 & 3 closed | |
|
Serial port 2 IRQ select IRQ4 |
JP2 |
Pins 1 & 2 closed | |
|
Serial port 2 IRQ select IRQ3 |
JP2 |
Pins 2 & 3 closed | |
|
|
Factory configured - do not alter |
JP3 |
Open |
|
|
BIOS type select 27256 |
JP4 |
Pins 2 & 3 closed |
|
BIOS type select 27128 |
JP4 |
Pins 1 & 2 closed | |
|
|
CMOS memory normal operation |
JP6 |
Pins 2 & 3 closed |
|
CMOS memory clear |
JP6 |
Pins 1 & 2 closed | |
|
IDE controller card not installed |
JP7 |
Pins 1 & 2 closed | |
|
IDE controller card installed |
JP7 |
Pins 2 & 3 closed | |
|
|
Factory configured - do not alter |
JP8 |
Open |
|
|
Floppy drive interface enabled |
JP9 |
Pins 1 & 2 closed |
|
Floppy drive interface disabled |
JP9 |
Pins 2 & 3 closed | |
|
|
Factory configured - do not alter |
JP10 |
Open |
|
|
Floppy drive address select 3FXh |
JP11 |
Pins 2 & 3 closed |
|
Floppy drive address select 37Xh |
JP11 |
Pins 1 & 2 closed | |
|
|
VGA ROM select 8-bit |
JP12 |
Pins 2 & 3 closed |
|
VGA ROM select 16-bit |
JP12 |
Pins 1 & 2 closed | |
|
|
Factory configured - do not alter |
JP13 |
Open |
|
|
Serial port 2 address select 2F8h |
JP14 |
Pins 1 & 2 closed |
|
Serial port 2 address select 3F8h |
JP14 |
Pins 2 & 3 closed | |
|
|
Serial port 1 address select 3F8h |
JP15 |
Pins 2 & 3 closed |
|
Serial port 1 address select 2F8h |
JP15 |
Pins 1 & 2 closed | |
|
|
Parallel port address select 378h |
JP16 |
Pins 2 & 3 closed |
|
Parallel port address select 278h |
JP16 |
Pins 1 & 2 closed | |
|
|
Feature clock enabled |
JP17 |
Pins 1 & 2 closed |
|
36MHz clock enabled |
JP17 |
Pins 2 & 3 closed | |
|
|
On board video enabled |
JP18 |
Pins 2 & 3 closed |
|
On board video disabled |
JP18 |
Pins 1 & 2 closed | |
|
USER CONFIGURABLE SETTINGS (CONT) | |||
|
Function |
Label |
Position | |
|
|
Parallel port IRQ select IRQ7 |
JP19 |
Pins 1 & 2 closed |
|
Parallel port IRQ select IRQ5 |
JP19 |
Pins 2 & 3 closed | |
|
|
Monitor type select EGA |
JP20 |
Pins 1 & 2 closed |
|
Monitor type select color/monochrome |
JP20 |
Pins 2 & 3 closed | |
|
|
Factory configured - do not alter |
JP21 |
Unidentified |
|
DRAM CONFIGURATION | ||
|
Size |
Bank 0 |
Bank 1 |
|
1MB |
(4) 256K x 9 |
None |
|
2MB |
(4) 256K x 9 |
(4) 256K x 9 |
|
4MB |
(4) 1M x 9 |
None |
|
8MB |
(4) 1M x 9 |
(4) 1M x 9 |
|
Note: The location of banks 0 & 1 are unidentified. | ||
|
CPU SPEED SELECTION | |
|
Speed |
JP5 |
|
8MHz |
Pins 2 & 3 closed |
|
12MHz |
Pins 1 & 2 closed |