Conventional Memories

This page is part of my Toshiba Tech Access archive project, to learn more please visit the project page, Some of the files from the Toshiba BBS referenced here can also be found there.

Index

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T4600, T4600C (4600)

(No longer manufactured)

General Information

Model number: T4600 Monochrome display 120MB - PA1201U-M2A (FCC ID# CJ6UK450)

T4600 Monochrome display 200MB - PA1202U-M2A (FCC ID# CJ6UK450)

T4600C Color display 120MB - PA1201U-X2A (FCC ID# CJ6UK451)

T4600C Color display 200MB - PA1202U-X2A (FCC ID# CJ6UK451)

T4600C Color display 320MB - PA1203U-X2A (FCC ID# CJ6UK451)
Dimensions: T4600 - 11.7"W x 8.3"D x 1.8"H

T4600C - 11.7"W x 8.3"D x 2.0"H
Weight: T4600 - 6.4lbs. with battery pack

T4600C - 6.9lbs. with battery pack
Voltage: Computer DC input - 15VDC, 2.0A

Universal AC adapter - 100-240 VAC 50-60 Hz
Batteries: T4600 - removable rechargeable NiCd or NiMH battery pack.

3 hrs. + battery life per charge; recharges in 2 hrs. off/4hrs. on

T4600C - removable rechargeable NiMH battery pack.

2.5 hrs. + battery life per charge; recharges in 2hrs. off/4hrs. on

Internal NiMH backup battery for memory backup, lithium RTC battery for real time clock
CPU: i486TM SL-33Mhz (8KB internal cache; internal coprocessor)
RAM memory: 4MB standard, 3.3 volt operation (640KB conventional memory plus 3,328KB which can be configured as RAM disk (HardRAM), expanded (LIM/EMS 4.0), and/or extended memory, plus 128KB shadow BIOS ROM

Memory expandable up to 20MB using 4, 8 or 16MB user installable credit card style memory
Video RAM: 512KB
Number of keys: 82
Keyboard type: 101-key keyboard compatible
Drives: One 1.44MB 3.5" floppy disk drive

One 120MB, 200MB, or 320MB hard disk drive
Standard features: MaxTimeTM power management capabilities including:

APM drivers

AutoResume electronic bookmark

AutoSave safety data retrieval system

CPU sleep mode

Snap mode

Automatic display, hard drive, and floppy drive power down

HardRAM

Low battery warning light and audible alarm

Digital battery gauge

Status bar LCD readout and System Hotkeys

Battery charge light

BIOS in Flash ROM

Multi-level power on password

Shadow BIOS ROM

System reset button

3 year U.S. and International warranty (One year warranty on battery)

Product Support

Meets standards for EPA Energy Star Computer Program
Preinstalled software: Toshiba MS-DOS 6.0

Windows 3.1

Ultrafont

Hypertext on-line documentation (disk resident) includes T4600/T4600C Reference.
Pointing device: BallpointTM mouse with QuickPortTM connection

Software Compatibility

Compatible with software written for the IBM PC/XT/AT using VGA, EGA, or CGA resolution graphics modes

Interfaces

Super VGA color video port (supports 640 x 480, 256 colors; 800 x 600, 16 colors; 800 x 600, 256 colors; 1024 x 768, 16 colors)

16mm "Hot Plug" PCMCIA slot

5mm "Hot Plug" PCMCIA slot

RS-232-C serial port

Parallel printer port

150 pin expansion bus connector

PS/2 keyboard port

PS/2 mouse port

Credit card style memory slot

Kensington cable lock slot

QuickPortTM connection for BallPointTM mouse

Fluorescent Sidelit Supertwist LCD Display (T4600)

Display area: 7.6"W x 5.7"H; 9.5" diagonal
Resolution: 640 x 480
Dot dimension: .24mm x .24mm
Dot pitch: .30mm x .30mm
Aspect ratio: 1 : 1
Contrast: 17 : 1
Gray scales: 64 gray scales

Simultaneous display to external monitor on video modes up to 640 x 480, 16 colors

TFT-LCD Color Active Matrix Display (T4600C)

(Refer to section 6-1 for more information on Toshiba color TFT-LCD technology)

Display area: 7.6"W x 5.7"H; 9.5" diagonal
Resolution: 640 x 480
Dot pitch: .30mm x .30mm
Aspect ratio: 1 : 1
Contrast: 60 : 1
Colors: 256 colors out of a palette of 185,193 on TFT-LCD in 640 x 480 mode

Simultaneous display to external monitor on video modes up to 640 x 480, 256 colors

2.5" 120MB Hard Disk Drive (T4600 or T4600C)

Toshiba HDD: MK-2124FC
Interface: IDE
Average access time: 17ms
Recording method: RLL 2-7

2.5" 200MB Hard Disk Drive (T4600 or T4600C)

Toshiba HDD: MK-2224FC
Interface: IDE
Average access time: 12ms
Recording method: RLL 2-7

2.5" 320MB Hard Disk Drive (T4600C)

Toshiba HDD: MK-2326FC
Interface: IDE
Average access time: 12ms
Recording method: RLL 2-7

Hardware Switches and Controls

1) Power on/off

Located on left side of computer

2) Reset

Located on left side of computer

3) PCMCIA eject button

Located on right side of computer inside cover (for 5mm slot only)

Environmental Specifications

1) Operating condition

Ambient temperature: 41 to 95 degrees F.

5 to 35 degrees C.
Relative humidity: 20% to 80% non-condensing
Altitude (from sea level): -22 to 10,000 ft. (-60 to 3,000 meters)

2) Non-Operating condition

Ambient temperature: -4 to 149 degrees F.

-20 to 65 degrees C.
Relative humidity: 10% to 90% non-condensing
Altitude (from sea level): 30,000 ft. (10,000 meters) max.

3) Wet bulb temperature condition

Ambient temperature: 79 degrees F. (26 degrees C.) maximum

HotKeys used with Fn key

Fn + F1 Instant security ON/OFF
Fn + F2 Power save mode
Fn + F3 AutoResume Enable/Disable
Fn + F4 Speaker volume adjustment - on, off, high, medium, low - press key repeatedly to set level
Fn + F5 Internal/Simultaneous/External displays - press key repeatedly to set choice
Fn + F6 Normal/Reverse gray scales (T4600)
Fn + F10 Arrow (cursor control on numeric keypad overlay)
Fn + F11 Numeric keypad overlay
Fn + F12 Scroll Lock
Fn + Right/Left arrow Contrast adjustment (T4600)
Fn + Up/Down arrow Brightness adjustment
Fn + Alt Simulate IBM enhanced keyboard Right ALT
Fn + Ctrl Simulate IBM enhanced keyboard Right CTRL
Fn + Enter Simulate IBM enhanced keyboard numeric keypad enter

Options and Extra Accessories

PC-PA2012U 4MB memory card (3.3 volt)
PC-PA2013U 8MB memory card (3.3 volt)
PC-PA2014U 16MB memory card (3.3 volt) (no longer manufactured)
NW2014U 16MB memory card
T24NW Noteworthy PCMCIA Type II 2400/9600bps data/fax modem (no longer manufactured)
T144NW Noteworthy PCMCIA Type II 14400bps data/fax modem (no longer manufactured)
T144NWX Notewothy 5mm PCMCIA, type II 14400bps data/fax modem (no longer manufactured)
PC-T144PF4 14mm PCMCIA 2.01 compliant 14400bps data/fax modem (dual RJ-11) (no longer manufactured)
NWTR01X Noteworthy PCMCIA type II Token Ring card
NWETH01X Noteworthy 10BaseT PCMCIA type II Ethernet card
NWETH02X Noteworthy 10Base2 PCMCIA type II Ethernet card
NW3270 Noteworthy PCMCIA type II 3270 emulation card
NWHD105M3 Noteworthy PCMCIA type III 105MB hard disk drive
SW3270 IBM PC/3270 software for NW3270 card
PA28064 Cryptcard PCMCIA type II (DES) data encryption card
PC-PA2412URA Battery pack - NiCd (no longer manufactured)
PA2413URA Battery pack - Nickel Hydride
PC-PA2520L Battery pack recharger (no longer manufactured)
PC-PA2411U Universal AC adapter
PC-PA2455L 12VAC automobile adapter (limited availability)
PC-PA801L Statpower Prowatt 125 auto adapter
PC-PA2113 Toshiba 150 pin SCSI adapter (replaces PC-PA2112) (no longer manufactured)
PC-PA3350L Kensington security cable lock
PC-PA2701U Desk Station IV (replaces PC-PA2700UXZ)
PC-PA180B PC pack carrying case (blue)
NWCCAFB Twin fabric carrying case
NWCCALB Twin leather carrying case
PC-PA877LX Fabric carrying case (no longer manufactured)
PC-PA1050L Leather attache case
PC13-PA874L Executive leather portfolio (no longer manufactured)
PA2805U Ballpoint Mouse 2.0 with Quickport

System Memory Map

  Space  
Address range (Kilobytes) Used For:
'00000000' 640 System working
'0009FFFF'   memory
'000A0000' 128 Video RAM
'000BFFFF'    
'000C0000' 32 Video BIOS ROM
'000C7FFF'   (Shadow ROM)
'000C8000' 160 Reserved for ISA bus
'000EFFFF'    
'000F0000' 64 System BIOS ROM
'000FFFFF'   (Shadow ROM)
'00100000' 3,072 System working
'003FFFFF'   memory
'00400000' 16,384 Optional working memory
'013FFFFF'    
'01400000' 256 The rest of system
'0143FFFF'   working memory
'01440000'   Memory expansion in
'03FEFFFF'   expansion port
'03FE0000' 128 System BIOS ROM
'03FFFFFF'   (Duplicated)

Interrupts

Interrupt Level Assigned To:
-- NMI RAM Parity Error; I/O Channel Error
  0 Timer
  1 Keyboard
  2 PIC 2 for levels 8 to 15
1 3 Secondary Communications (COM 2)
  4 Primary Communications (COM 1)
  5 PRT 2 (LPT 2)
  6 FDC
  7 PRT 1 (LPT 1) PRT 3 (LPT 3)
  8 RTC
  9 Software Redirected to INT '0A'
2 10 Reserved
  11 Reserved
  12 PS/2 Mouse
  13 Math coprocessor
  14 HDC
  15 Reserved

DMA channels

DMAC Channel Assigned To:
  0 Not used
#1 1 Reserved
  2 FDD
  3 Reserved
  4 Cascade for DMAC #1
#2 5 Reserved
  6 Reserved
  7 Not used

I/O Port Assignment

Port Address  
From / To Device / Function
000' / '01F' 82C37 : DMA Controller 1
020' / '03F' 82C59 : PIC 1
040' / '05F' 82C54 : Timer
060' / '06F' KBC
070' NMI Mask Register
070' / '07F' RTC
080' / '09F' DMA Page Register
0A0' / '0BF' 82C59 : PIC 2
0C0' / '0DF' 82C37 : DMA Controller 2
0E0' / '0EF' Special Register
0F0' / '0F7' Math Coprocessor
100' / '1EF' VGA
1F0' / '1FF' HDC
200' / '207' Game I/O
208' / '20F' (Not Used)
210' / '217' Expansion Unit
218' / '21F' (Not Used)
220' / '257' (Not Used)
258' / '25F' (Not Used)
260' / '267' (Not Used)
268' / '26F' (Not Used)
270' / '277' (Not Used)
278' / '27F' Parallel PRT 2
280' / '2A7' (Not Used)
2A8' / '2AF' Reserved for EMS
2B0' / '2B7' (Not Used)
2B8' / '2BF' Reserved for EMS
2C0' / '2DF' (Not Used)
2E0' / '2E7' (Not Used)
2E8' / '2EF' Reserved for EMS
2F0' / '2F7' (Not Used)
2F8' / '2FF' Serial Port 2 (COM 2)
300' / '31F' Prototype card
320' / '32F' XT type HDC
330' / '337' (Not Used)
338' / '33F' Serial Port 3 (COM 3)
340' / '377' (Not Used)
378' / '37F' Parallel PRT 1
380' / '38F' SDLC, Bisynchronous 2
390' / '39F' (Not Used)
3A0' / '3AF' Bisynchronous 1
3B0' / '3BF' MDA, Parallel PRT 3
3C0' / '3DF' CGA, EGA, VGA
3E0' / '3E7' (Not Used)
3E8' / '3FF' Serial Port 3 (COM 3)
3F0' / '3F7' FDC
3F8' / '3FF' Serial Port 1 (COM1)
400' / '47F' (Not Used)
480' / '49F' DMA Hi-Page Register