Toshiba Satellite 110 Series User manual

110 Series 1-1
1.1 Features
The 110 series computer is one of the lightest and most advanced portable computers avail-
able. Utilizing advanced technology and high-speed components, the computer offers
multimedia functions, excellent display legibility, battery operation, and IBM PC/AT com-
patibility. The unit's features are:
❑Microprocessor
A Pentium processor with Voltage Reduction Technology (VRT) that operates at 100
MHz and 3.3/2.9 volts.
❑Memory
Standard with 8 MB of CMOS RAM. This includes 640 KB of conventional memory
and 7360 KB of extended memory.
❑Hard Disk Drive (HDD)
An internal 810 million byte (772 MB) HDD.
❑Floppy Disk Drive (FDD)
A 3.5-inch FDD supports 2HD (1.44 MB) floppy disks and 2DD (720 KB) floppy
disks.
❑Display
The 110CS has an 11.3-inch Dual-scan Supertwist Nematic (DSTN) color LCD with
800 x 600 pixels. The 110CT has an 11.3-inch Thin-Film Transistor (TFT) color
LCD with 800 x 600 pixels. The built-in display controller supports 640 x 480
resolution with 16M colors capability and up to 1024 x 768 resolution with 256
colors on an external CRT.
❑Keyboard
An easy-to-use 82/84-key keyboard provides a numeric keypad overlay for fast
numeric data entry or for cursor and page control. The keyboard supports software
that uses a 101- or 102-key enhanced keyboard.
❑Batteries
Three different batteries: main battery, backup battery (for memory backup), and Real
Time Clock (RTC) battery.

1-2 110 Series
❑Expansion Memory Slot
An optional 8, 16, or 32 MB memory module can be installed in the memory slot.
❑Parallel Port
This port can be used to connect a Centronics compatible printer or other parallel
device. The port supports ECP (Extended Capabilities Port) conforming to
IEEE·1284.
❑Serial Port (9-Pin)
The serial controller is 16550UART compatible. This port can be used to connect
serial devices such as a serial printer, serial mouse, or external modem.
❑External Monitor Port
The female, 15-pin, D-shell connector can be connected to an external SVGA moni-
tor.
❑External Keyboard/Mouse Port
Either a PS/2-compatible keyboard or mouse can be connected to this port. The
computer automatically recognizes which device is connected.
❑PC Card Slot
A PC card slot supports up to two Personal Computer Memory Card International
Association (PCMCIA) standard version release 2.0 cards. The upper and lower slots
can each accommodate one Type II (5.0 mm) card, or the lower slot can accommo-
date one Type III (10.5 mm) card when the upper slot is empty.
❑Enhanced Port Replicator Port
This port enables connection of an enhanced port replicator. The enhanced port
replicator has two PC card slots (Type III), and expands connections to the following
devices: PS/2 keyboard, PS/2 mouse, serial port, parallel port, external CRT, AC-in,
and AC-out.
❑AccuPoint
A pointer control stick, located in the center of the keyboard, provides convenient
control of the cursor without requiring desk space for a mouse.

110 Series 1-3
The 110 Series Personal Computer is shown in Figure 1-1.
Figure 1-1 110 series personal computer
The system configuration is shown in Figure 1-2.
Figure 1-2 System unit configuration

1-4 110 Series
1.2 System Unit Block Diagram
Figure 1-3 is a block diagram of the system unit.
Figure 1-3 System board block diagram

110 Series 1-5
The system board's major components are:
❑Microprocessor
• One Pentium processor with VRT 64-bit microprocessor
• The Pentium processor operates at 100 MHz and 3.3/2.9 volts
• The math co-processor and 16 KB cache memory are integrated into the Pentium
❑Standard RAM
• 8 MB, four 1M x 16-bit chips
• 3.3 volt operation
• No parity bit
• Access time is 60 ns
• Data transfer is 64-bit width
• EDO (Extended Data Output) supported
❑BIOS ROM (Flash EEPROM)
• 128 KB (one 128K x 8-bit chip) memory
• 64 KB in the ROM are used for system BIOS
• 48 KB in the ROM are used for VGA BIOS
• 16 KB in the ROM are reserved
• Access time is 150 ns
• Data transfer is 8-bit width
❑Video RAM
• 1 MB (two 256K x 16-bit DRAM)
• 5 volt operation
❑Optional Memory
• One expansion memory slot is available for 8, 16, and 32 MB memory modules,
which consist of 1 MB x 16-bit chips
• Total maximum memory size is 40 MB (if a 32 MB memory module is installed)
• 3.3 volt operation
• No parity bit
• Access time is 60 ns
• Data transfer is 64-bit width
• EDO (extended data output) supported

1-6 110 Series
❑One Super Integration (SI)
Contains the following components:
• Two DMACs ............ 82C37 equivalent
• Two PICs .................. 82C59 equivalent
• Two SIOs.................. 16550 equivalent (One SIO is not used)
• Two UART ............... 16550 equivalent
• One PIT..................... 82C54 equivalent
• One FDC................... TC8565 equivalent
• One VFO................... TC8568 equivalent
• One I/O port decode
• One SIO port control
• One printer port control supported ECP
• One FDD control
• One speaker control
• One power communication control
❑System Controller Gate Array (SCPCNT-GA)
This gate array's functions:
• CPU control
- SMI control
- CPU clock control
• Memory control
- 64-bit bus memory control
- 32-bit bus memory control
• Bus control
- 64-bit data bus <==>32-bit data bus
- 32-bit local bus control
• Address latch control
• I/O register control
• Processing speed control
❑ISA Bus Controller Gate Array (SISCNT-GA)
This gate array's functions:
• Bus control
- 32-bit data bus <==> 16-bit data bus
- ISA bus interface control
- ISA bus access control
- DMAC control
- DMA address generation
- I/O control
- Suspend/resume sequence
• Memory control
- ISA bus interface control
- Refresh address generation
• I/O register control
• Suspend/resume sequence

110 Series 1-7
❑PC Card Controller Gate Array (PCMCIA-GA)
This gate array's functions:
• PCMCIA memory card control
• PCMCIA I/O card control
❑I/O Controller Gate Array (IOCNT-GA)
This gate array's functions:
• Internal Communication controller
- KBC, main CPU communication register file
- KBC interrupt controller
- KBC communication controller
-I
2
C bus control (Not used)
• Others
- Speaker volume adjust PWM control
- Sound board interface (Not used)
- BIOS-ROM interface
- SMI control
- IrDA (SIR) control (Not used)
❑Video Controller
C&T F65548 is used.
This video controller controls internal DSTN/TFT color LCD and external SVGA
compatible CRT.
❑Keyboard Controller (KBC)
One M38802M4 chip is used.
This KBC includes the keyboard scan controller and keyboard interface controller.
The KBC controls the internal keyboard, external keyboard, and PS/2 mouse.
❑AccuPoint Controller (IPSC)
One KPAAC0062A chip is used.
This controller provides simultaneous control of both the AccuPoint and a
PS/2 mouse.
❑Real Time Clock (RTC)
One T9934 chip is used.
The T9934 has 128 bytes of memory. Fourteen bytes of memory are used for the
calendar and clock. The remaining 114 bytes are used for the system configuration
data.

1-8 110 Series
1.3 3.5-Inch Floppy Disk Drive
The 3.5-inch Floppy Disk Drive (FDD) is a thin, high-performance reliable drive that sup-
ports 720-KB (formatted) 2DD and 1.44-MB (formatted) 2HD 3.5-inch floppy disks.
The FDD is shown in Figure 1-4.
Figure 1-4 3.5-inch FDD
Table 1-1 lists the FDD specifications.
Table 1-1 3.5-inch FDD specifications
Item 2-MB mode 1-MB mode
Storage capacity (KB)
Unformatted 2,000 *1 1,000 *2
Formatted 1,440 720
Number of heads 2 2
Number of cylinders 80 80
Access time (ms)
Track to track 3 3
Average 181 181
Head settling time 15 15
Recording track density (tpi) 135 135
Data transfer rate (Kbps) 500 250
Rotation speed (rpm) 300 300
Recording method Modified Frequency Modulation (MFM)
*1: 18 sectors/track (512 bytes/sector)
*2: 9 sectors/track (512 bytes/sector)

110 Series 1-9
1.4 2.5-Inch Hard Disk Drive
The Hard Disk Drive (HDD) is a random access nonvolatile storage device. It has a non-
removable 2.5-inch magnetic disk and mini-Winchester type magnetic heads.
The computer supports the 720 MB HDD.
The HDD is shown in Figure 1-5.
Figure 1-5 2.5-inch HDD
Table 1-2 lists the HDD specifications.
Table 1-2 2.5-inch HDD specifications
Item Toshiba MK1926FCV IBM DBOA-20810
Formatted capacity (bytes) 814,915,584 812,851,200
Disks 3 2
Logical heads 16 16
Logical cylinders 1,579 1,575
Bytes per sector 512 512
Rotation speed (rpm) 4200 4009
Recording method 8 - 9 RLL 1 - 7 RLL

1-10 110 Series
1.5 Keyboard
The 82- (USA) or 84- (European) keyboard is mounted on the computer’s system unit. The
keyboard is connected to the keyboard controller on the system board through a 25-pin flat
cable. The computer pointer control stick, located in the center of the keyboard, provides
convenient control of the cursor without requiring desk space for a mouse. The keyboard is
shown in Figure 1-6. See Appendix E for optional keyboard configurations.
Figure 1-6 Keyboard

110 Series 1-11
1.6 DSTN Color LCD (110CS)
The 110CS has a DSTN Color Liquid Crystal Display (LCD), which contains an LCD mod-
ule, a Fluorescent Lamp (FL), and an FL inverter board.
1.6.1 DSTN Color LCD Module
The DSTN color LCD is backlit and supports 800 x 600 pixels with a video controller. This
controller includes the functions of Video Graphics Array (VGA) and Super VGA (SVGA)
for external display.
The display controller is F65548. It enables an LCD display of a maximum 256 colors.
The DSTN LCD is shown in Figure 1-7.
Figure 1-7 DSTN color LCD (110CS)
Table 1-3 lists the LCD's specifications.
Table 1-3 DSTN color LCD specifications (110CS)
Item Specifications
Number of dots (dots) 800 x 600
Dot pitch (mm) 0.288 x 0.288
Display area (mm) 230.4 (W) x 172.8 (H)
Contrast (Typically) 30:1
FL current (mA) 5.0/3.0
(Bright/Semi-bright)

1-12 110 Series
1.6.2 DSTN Color FL Inverter Board
The FL inverter board supplies high frequency current to light the LCD’s fluorescent lamp.
Table 1-4 lists the FL inverter board's specifications.
Table 1-4 DSTN color FL inverter board specifications (110CS)
Item Specifications
Input Voltage (V) 5
Power (W) 4.25
Output Voltage (Vrms) 1,100
Current (mA) 5.0/3.0
(Bright/Semi-bright)

110 Series 1-13
1.7 TFT Color LCD (110CT)
The 110CT has a TFT Color Liquid Crystal Display (LCD), which contains an LCD module,
a Fluorescent Lamp (FL), and an FL inverter board.
1.7.1 TFT Color LCD Module
The TFT color LCD is backlit and supports 800 x 600 pixels with built-in display controller.
This controller includes the functions of VGA and SVGA for external display.
A display controller is F65548. This controller enables an LCD display of a maximum 64 K
colors.
The TFT LCD is shown in Figure 1-8.
Figure 1-8 TFT color LCD (110CT)
Table 1-5 lists the LCD's specifications.
Table 1-5 TFT color LCD specifications (110CT)
Item Specifications
Number of Dots (dots) 800 x 600
Dot pitch (mm) 0.288 x 0.288
Display area (mm) 230.4 (W) x 172.8 (H)
Contrast (Minimum) 100:1
FL current (mA) 4.6/2.8
(Bright/Semi-bright)

1-14 110 Series
1.7.2 TFT Color FL Inverter Board
The FL inverter board supplies high frequency current to light the LCD’s Fluorescent Lamp.
Table 1-6 lists the FL inverter board's specifications.
Table 1-6 TFT color FL inverter board specifications (110CT)
Item Specifications
Input Voltage (V) 5
Power (W) 4.25
Output Voltage (Vrms) 1,100
Current (mA) 4.6/2.8
(Bright/Semi-bright)

110 Series 1-15
1.8 Power Supply
The power supply provides five kinds of voltages to the system board. The power supply has
one microprocessor and it operates at 500 KHz. It contains the following functions:
1. Determines if the AC cable or battery is connected to the computer.
2. Detects AC output and circuit malfunctions.
3. Controls the LED icon and speaker.
4. Turns the battery charging system on and off and detects a fully charged
battery.
5. Determines if the power can be turned on and off.
6. Provides more accurate detection of a low battery.
7. Calculates the remaining battery capacity.
The power supply output rating is specified in Table 1-7.
Table 1-7 Power supply output rating
Voltage DC Regulation
Use name voltage tolerance (%)
System logic, FDD, HDD, VCC +5 ±5
Display
CPU CPUV +2.9 ±5
Flash ROM, PC card 12V +12 ±5
CPU, RAM, GA B3V +3.3 ±0.3V
VRAM, GA B5V +4.7 ±5

1-16 110 Series
1.9 Batteries
The computer has three types of batteries:
❑Main battery pack
❑Backup battery
❑Real Time Clock (RTC) battery
The removable main battery pack is the computer's main power source when the AC adapter
is not attached. The backup and main batteries maintain the state of the computer when
AutoResume is enabled. The RTC battery provides power to keep the current date, time, and
other setup information in memory while the computer is off.
Battery specifications are listed in Table 1-8.
Table 1-8 Battery specifications
Battery Name Material Output Voltage Capacity
Main battery Nickel Metal Hydride 12 V 2,800 mAH
Backup battery Nickel Metal Hydride 7.2 V 110 mAH
RTC battery Nickel Metal Hydride 3.6 V 30 mAH
1.9.1 Main Battery
The removable main battery pack is the computer’s main power source when the AC power
cord is not attached. The main battery recharges the backup battery. The backup and main
battery maintain the state of the computer when you enable AutoResume.
Battery Icon
The battery icon is located on top of the back rim of the computer. The color of the icon
shows the status of the removable main battery pack.
Orange The AC power cord is connected and charging the battery with
the power off.
Green The AC power cord is connected and the battery is fully
charged whether the power is on or off.
Blink orange The battery is low. The AC power cord must be connected to
recharge the battery.
No light Under any other conditions, the LED does not light.

110 Series 1-17
Battery Charging Control
Battery charging is controlled by a power supply microprocessor that is mounted on the
power supply. The microprocessor controls whether the charge is on or off and detects a full
charge when the AC power cord and battery are attached to the computer. The system
charges the battery using quick charge or trickle charge.
❑Quick Battery Charge
When the AC power cord is attached, there are two types of charge: quick charge
when the system is powered off and trickle charge when the system is powered on.
Table 1-9 Time required for quick charges
Power Charging time
Off 2 to 3 hours
On 3 to 11 hours
If one of the following occurs, the battery quick-charge process stops:
1. The battery becomes fully charged.
2. The battery is removed.
3. The battery or AC output voltage is abnormal.
4. The charge current is abnormal.
5. The fixed time limit for quick charge is exceeded.
❑Trickle Battery Charge
When the main battery is fully charged and the AC power cord is attached, the power
supply microprocessor automatically changes from quick charge to trickle charge.

1-18 110 Series
1.9.2 Backup Battery
The backup battery maintains data for AutoResume. The power source used to back up the
AutoResume data is determined according to the following priority:
AC power > Main battery > Backup battery
The backup battery is charged by the main battery or AC power cord. Table 1-10 shows the
backup battery's charging time and data preservation period.
Table 1-10 Backup battery charging/data preservation time
Item Time
Charging Time Power On 20 hours
Power Off (with AC power) 20 hours
Power Off (without AC power) Does not charge
Data preservation period (full charge) 4 hours
1.9.3 Real Time Clock (RTC) Battery
The RTC battery provides power to keep the current date, time, and other setup information
in memory while the computer is off. Table 1-11 shows the RTC battery's charging time and
data preservation period.
Table 1-11 RTC battery charging/data preservation time
Item Time
Charging Time With AC power 48 hours
or main battery
Data preservation period (full charge) 1 month

110 Series 2-1
2.1 Troubleshooting
Chapter 2 describes how to determine if a Field Replaceable Unit (FRU) in the computer is
causing the computer to malfunction. The FRUs covered are:
1. System Boards
2. VGA Board
3. HDD I/F Board
4. Floppy Disk Drive
5. Hard Disk Drive
6. Keyboard
7. Display
The Diagnostics Disk operations are described in Chapter 3 and detailed replacement proce-
dures are given in Chapter 4.
You will need the following tools to implement the troubleshooting procedures:
1. Diagnostics Disk
2. Phillips screwdrivers (M2 and M3)
3. Toshiba MS-DOS system disks
(You must install the following onto the disk: SYS.COM, FORMAT.COM,
FDISK.COM and FDISK.EXE.)
4. 2DD or 2HD formatted work disk for floppy disk drive testing
5. Cleaning kit for floppy disk drive troubleshooting
6. Printer port LED
7. RS-232-C wraparound connector
8. Printer wraparound connector
9. Multimeter
10. External CRT
11. PS/2 or compatible keyboard
12. PS/2 or compatible mouse
13. Serial port wraparound connector
14. PC card wraparound card

2-2 110 Series
2.2 Troubleshooting Flowchart
Use the flowchart in Figure 2-1 as a guide for determining which troubleshooting procedures
to execute. Before proceeding with the flowchart steps, do the following:
❑Ask the user if a password is registered and, if it is, ask the user to enter the password.
If the user has forgotten the password, connect the printer port wraparound board
(F31PRT), then turn the power switch on. The computer will override the password
function by erasing the current password.
❑Verify with the customer that Toshiba MS-DOS is installed on the hard disk drive.
Non-Toshiba operating systems can cause the computer to malfunction.
❑Make sure all optional equipment is disconnected from the computer.
❑Make sure the floppy disk drive is empty.
If the Diagnostics Program cannot detect an error, the problem may be intermittent. Execute
the Running Test program several times to isolate the problem.
Check the Log Utilities function to confirm which diagnostic test detected errors, then per-
form the appropriate troubleshooting procedures as follows:
1. If an error is detected on the System Test, Memory Test, Display Test, Async
Test, Printer test, or Real Timer Test, perform the system board troubleshooting
procedures in Section 2.4.
2. If an error is detected on the Floppy Disk Test, perform the floppy disk drive
troubleshooting procedures in Section 2.5.
3. If an error is detected on the Hard Disk Test, perform the hard disk drive trouble-
shooting procedures in Section 2.6.
4. If an error is detected on the Keyboard Test, perform the keyboard troubleshoot-
ing procedures in Section 2.7.
5. If an error is detected on the Display Test, perform the display troubleshooting
procedures in Section 2.8.