General Information
Model number: PA7039U
Dimensions: 14.6"W x 15.6"D x 3.9"H
Weight: 19 lbs.
Voltage: 115 (104 to 127) VAC, 2.5A
230 (207 to 253) VAC switch selectable
Frequency: 50/60 (49 to 61) Hz
CPU: 80286-12 (12/6MHz); 80287-8 coprocessor socket RAM memory:
1MB RAM standard (640K Conventional; 384K LIM-EMS 3.2)
Memory expandable to 4MB when optional 3MB memory card
is added
Number of keys: 85
Keyboard type: Internal PC, external 101-key enhanced keyboard port
Drives: One 1.44MB 3.5" floppy disk drive (later models) or
One 720KB 3.5" floppy disk drive (earlier models)
One 40MB hard disk drive
Operating system: Toshiba MS-DOS 3.2 shipped with early models
Toshiba MS-DOS 3.30 shipped with later models
Toshiba MS-DOS 4.01 shipped with final models
Software Compatibility
Compatible with software written for the IBM PC/XT/AT using MDA, EGA,
CGA, Hercules monochrome, or T3100/AT&T 6300 640 x 400 high resolution
graphics mode
Interfaces
RGB color video port (CGA, EGA, MDA, Hercules monochrome)
RS-232-C serial port
101-key keyboard port
Parallel printer/external diskette or tape drive port
Toshiba proprietary memory slot
2 expansion interface slots (one IBM PC/ XT/286 compatible full length
low profile 16 bit ISA slot, one IBM PC/XT compatible half length
low profile 8 bit ISA slot)
Display
Display type: Orange gas plasma
Display area: 8.5"W x 5.75"H; 10.25" diagonal
Resolution: 720 x 400
Gray scales: 4
Contrast: 10 : 1
3.5" 40MB Hard Disk Drive
Fujitsu HDD: M2227DT
Number of heads: 8
Number of cylinders: 615
Average access time: 38 ms
Recording method: MFM
Interleave: 3 : 1
TEST3 setup type: 4
IBM Compatible Expansion Slots
One full length IBM PC/XT/286 16-bit slot low profile ISA slot; One
IBM PC/XT half length low profile 8-bit ISA slot
Combined power for both slots: + 5 V 2A
+12 V 0.6A
- 5 V and -12 V total of 0.2A
Maximum card sizes:
16-bit long slot 333.502mmL +/- .5mm x 106.68mmW
99.06mmW +/- .3mm w/o connector
33mmH or 13mmH if short slot used
8-bit short slot 140mmL x 13mmH, width same as 16 bit
Soft Switches
1) Change CPU speed
Fn + Ctrl + PgUp 12MHz CPU speed
Fn + Ctrl + PgDn 6MHz CPU speed
2) Character font
Fn + Right arrow Toggles display font
3) Display select
Fn + End External display
Fn + Home Plasma display
4) Extending the display area
Fn + Down arrow Toggles between 350 and 400 rows
Hardware Switches and Controls
1) Power on/off
- Located on back of computer
2) A/B/PRT switch
- Located on back of computer
- With switch set to "A", external FDD port is accessed as drive A;
internal 3.5" FDD as drive B.
- With switch set to "B", external FDD port is accessed as drive B;
internal 3.5" FDD as drive A.
- Switch is set to "PRT" for parallel printer output.
- Computer must be re-booted for switch change to take effect.
3) Plasma display brightness and contrast dials
- Located on right side of display/computer
4) 6 DIP switch bank
- Located on back of computer
- Power off computer before changing switch settings
- Factory default settings all off
SW1 OFF IBM EGA compatible ON Auto-Switched display mode
SW2 OFF PRT output only ON PRT bidirectional
SW3 OFF Serial port COM 1 ON Serial Port COM 2
SW4 OFF Single dot font ON Double dot font
SW5 OFF Enable Internal ON Disable internal
video controller video controller
SW6 OFF American Font ON North European font
SW7 SW8 SW9 SW10 Tables for Monitor
OFF OFF ON OFF Monochrome (720 x 350)
ON OFF OFF ON Standard RGB ( 40 col. ) (320 x 200)
OFF OFF OFF ON Standard RGB ( 80 col. )(640 x 200)
ON ON ON OFF Enhanced RGB (640 x 200)
OFF ON ON OFF Enhanced RGB (640 x 350 EGA)
OFF OFF OFF OFF Toshiba high resoultion mode (640 x 400)
5) 110V or 220V
Move metal plate for appropriate voltage. Default in USA will show
115V with 230V label covered by metal plate.
Options and Extra Accessories
-----------------------------------------------------------------------------
PC6-PA7137U 3MB LIM-EMS 3.2/extended memory card
PC-PA7225U 5.25" 360KB external FDD with 18VDC adapter
PC-PA736 Floppy Link to 5.25" desktop diskette drive
PC6-PA5466U Toshiba LAN Ethernet card (IBM/XT compatible 1/2 card,
8 bit)
PC-PA722L TD80 external tape drive
PC-PA7598 Leather carrying case
PC-PA7597E Fabric carrying case
PR-PA2750U ExpressWriter 201 portable printer
PC-SW004 Toshiba BASIC 3.30 (includes diskette and manual)
PC-SW008 Toshiba MS-DOS 3.30 (includes diskettes and manual)
PC-SW007 Toshiba MS-DOS 4.01 (includes diskettes and manuals)
PC-SW013 Toshiba MS-DOS 5.0 (includes diskettes and manuals)
PC-SW012 Toshiba MS OS/2 operating system 1.21 (T3200
must have 1.44MB FDD) Contact CP+ (800-274-4277)
1.44MB Floppy drive upgrade
System Memory Map
Start Address Space
Decimal Hex (Kilobytes) Used For:
-------------------------------------------------------
0 00000 System working
64K 10000 memory (Conventional)
128K 20000
192K 30000
256K 40000 640
320K 50000
384K 60000
448K 70000
512K 80000
576K 90000
-------------------------------------------------------
640K A0000 128 Video RAM
704K B0000
-------------------------------------------------------
768K C0000 32 EGA ROM
-------------------------------------------------------
800K C8000 32 (Not Used)
-------------------------------------------------------
832K D0000 64 LIM-EMS window
-------------------------------------------------------
896K E0000 64 (Not Used)
-------------------------------------------------------
960K F0000 64 System BIOS ROM
-------------------------------------------------------
Interrupts
Interrupt Level Assigned To:
NMI RAM parity error; I/O channel error;
Auto mode switching by display controller
0 Timer
1 Keyboard
2 Interrupt controller 2 for levels 8 to 15
1 3 Secondary Communications (COM 2)
4 Primary Communications (COM 1)
5 PRT 2
6 FDC
7 PRT 1
------------------------------------------------------------------------
8 RTC
9 Software Redirect to INT '0A'
2 10 (Reserved)
11 (Reserved)
12 (Reserved)
13 Coprocessor
14 HDC
