General Information Model number: PA7039U (FCC ID# CJ69XAE492) Dimensions: 14.6"W x 15.6"D x 3.9"H Weight: 19 lbs. Voltage: 115 (104 to 127) VAC, 2.5A230 (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 Video RAM: 256KB 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 included: Toshiba MS-DOS 3.2, 3.30, or 4.01 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) Orange Gas Plasma Display 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 video controller ON Disable internal 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. Environmental Specifications 1) Operating condition Ambient temperature: 41 to 95 degrees F. 5 to 35 degrees C. Relative Humidity: 20% to 80% non-condensing 2) Non-Operating condition Ambient temperature: -4 to 140 degrees F. -20 to 60 degrees C. Relative Humidity: 5% to 90% non-condensing Options and Extra Accessories PC6-PA7137U 3MB LIM-EMS 3.2/extended memory card (no longer manufactured) PC-PA7225U 5.25" 360KB external FDD with 18VDC adapter PC-PA7367E Floppy Link to 5.25" desktop diskette drive (no longer manufactured) PC6-PA5466U Toshiba LAN Ethernet card (IBM/XT compatible 1/2 card, 8 bit) (no longer manufactured) PC-PA722L TD80 external tape drive (no longer manufactured) PC-PA801L Statpower Prowatt 125 auto adapter PC-PA7598 Leather carrying case (no longer manufactured) PC-PA7597E Fabric carrying case (no longer manufactured) PR-PA2750U ExpressWriter 201 portable printer (no longer manufactured) PC-SW004 Toshiba BASIC 3.30 (no longer manufactured) PC-SW008 Toshiba MS-DOS 3.30 (no longer manufactured) PC-SW007 Toshiba MS-DOS 4.01 (no longer manufactured) PC-SW013 Toshiba MS-DOS 5.0 (no longer manufactured) PC-SW015 Toshiba MS-DOS 5.0 (no longer manufactured) PC-SW012 Toshiba MS OS/2 operating system 1.21 (1.44MB FDD) (no longer manufactured) Contact CP+ 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 I/O Port Assignment Port Address From / To Device / Function '000' / '01F' 82C37 : DMA Controller 1 '020' / '03F' 82C59A : Interrupt Controller 1 '040' / '05F' 82C54 : Timer '060' / '06F' 8742 : Keyboard '070' / '07F' RTC and NMI '080' / '09F' DMA Page Register '0A0' / '0BF' 8259 : Interrupt Controller 2 '0C0' / '0DF' 8237A : DMA Controller 2 '0E0' / '1EF' (Reserved) '1F0' / '1F8' HDC '200' / '2D7' Game I/O '278' / '27F' Parallel PRT 2 '2F8' / '2FF' Serial Port 2 (COM2) '300' / '31F' Prototype card '360' / '36F' (Reserved) '378' / '37F' Parallel PRT 1 '380' / '38F' SDLC, Bisync 2 '3A0' / '3AF' Bisync 1 '3B0' / '3BF' Monochrome Display '3C0' / '3CF' Color Graphics '3D0' / '3DF' Color Graphics '3F0' / '3F7' FDC '3F8' / '3FF' Serial Port 1 (COM1)