Toshiba T-Series T3300sl User manual

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Chapter 1
HardwareOverview

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Contents
1.1 T3300SL Features .............................................................................................................1-5
1.2 The System Unit Block Diagram.......................................................................................1-8
1.3 3.5-inch Floppy Disk Drive............................................................................................. 1-11
1.4 2.5-inch Hard Disk Drive ................................................................................................ 1-12
1.5 Keyboard ........................................................................................................................ 1-13
1.6 Sidelit Liquid Crystal Display......................................................................................... 1-14
1.6.1 LCD Module........................................................................................................ 1-14
1.6.2 FL Inverter Board................................................................................................ 1-15
1.7 Power Supply Board........................................................................................................ 1-16
Tables
Table 1-1 3.5-inch FDD specifications ................................................................................... 1-11
Table 1-2 2.5-inch HDD specifications .................................................................................. 1-12
Table 1-3 Sidelit LCD specifications ..................................................................................... 1-14
Table 1-4 FL inverter board specifications............................................................................. 1-15
Table 1-5 Power supply board output rating........................................................................... 1-16
Figures
Figure 1-1 T3300SL personal computer.....................................................................................1-7
Figure 1-2 System unit configuration ........................................................................................1-7
Figure 1-3 Block diagram ..........................................................................................................1-8
Figure 1-4 3.5-inch FDD.......................................................................................................... 1-11
Figure 1-5 2.5-inch HDD ......................................................................................................... 1-12
Figure 1-6 Keyboard................................................................................................................ 1-13
Figure 1-7 Sidelit LCD ............................................................................................................ 1-14
Figure 1-8 Power supply board ................................................................................................ 1-16

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1.1 T3300SLFeatures
The Toshiba T3300SL is one of the lightest and most advanced portable computers available.
Utilizing advanced technology and high speed components, the T3300SL offers excellent display
legibility, battery operation, and IBM PC/AT compatibility.
The T3300SL system unit consists of the following features:
❑An 80386SL-25 32-bit microprocessor, operating at 25MHz, 12.5MHz or 6.25MHz.
❑Standard Random Access Memory (RAM) capacity is 2MB. Optional 2, 4, 6 or 16MB
expansion cards can be installed, thus expanding RAM memory to a maximum of 18MB.
❑An optional 80387SX-25 Numeric Data Processor (NDP) can be installed in the built-in
socket located on the bottom of the T3300SL.
❑A high resolution, fully adjustable Liquid Crystal Display (LCD) is composed of 640
horizontal and 480 vertical pixels and displays 25 lines of standard text 80 characters wide.
The LCD displays 32 levels of gray (at a resolution of 320 x 200) and supports the High
Resolution Graphics Subsystem (HRGS), including VGA functions.
❑The 3.5-inch internal Floppy Disk Drive (FDD) supports both 1.44MB Double-sided, High-
density, Double-track (2HD) and 720KB Double-sided, Double-density, Double-track
(2DD) floppy disk.
❑The integrated 2.5-inch 80 or 120MB Hard Disk Drive (HDD) provides nonvolatile storage
for software and data.
❑An 82/84-key keyboard has full-sized keys, a numeric keypad overlay, cursor, and page
control. The keyboard supports software that uses the industry standard 101/102-key
keyboard.
❑The universal auto-sensing AC adapter supplies power to operate the T3300SL and recharge
its batteries. It can operate from a range of 100 to 240 volts. Optional power cords support
various countries’ AC outlet configurations.
❑A PS/2 mouse connector is located on the right side of the T3300SL.
❑A Personal Computer Memory Card International Association (PCMCIA) standard release
2.0 slot allows you to install a Toshiba card modem or an industry standard card in the
T3300SL.
❑Serial devices can be connected to the T3300SL’s standard 9-pin RS-232-C serial port.

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❑One selectable Centronics-compatible parallel port allows the T3300SL to interface with
optional parallel devices.
❑The Toshiba AutoResume feature stores the T3300SL’s data in backup RAM when the
power is turned off.
❑The Real Time Clock (RTC) IC chip and battery continuously update the date and time and
keep the system configuration even when the T3300SL power is off.

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The T3300SL Personal Computer is shown in Figure 1-1. Its system configuration is shown in
Figure 1-2.
Figure 1-1 T3300SL personal computer
Figure 1-2 System unit configuration
Sub Battery Power Supply
Board Battery Pack
HDD
Keyboard LCD
RTC Battery
FDD
PJ5
PJ10 PJ11
PJ9
LED
PJ2
PJ19
PJ4
AC Adapter
PJ21
PJ13
PJ12
Display
Switch
PJ15
PS/2 Mouse

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1.2 The System Unit Block Diagram
Figure 1-3 is a block diagram of T3300SL system unit.
Figure 1-3 Block diagram

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TheT3300SLsystemboarddiagrammedinFigure1-3 iscomposedofthefollowingmajorcomponents:
❑80386SL-25 CPU
❑Socket for an optional 80387SX-25 Numeric Data Processor (NDP)
❑82360SL ISA peripheral I/O chip contains the following components:
Two Direct Memory Access Controllers (DMACs): 82C37A
Two Programmable Interrupt Controllers (PICs): 82C59A
Two Programmable Interval Timers (PITs): 82C54
(T3300SL uses one PIT)
Two Serial Input/Ouput Controllers (SIOs): 16C450
(T3300SL uses one SIO)
One Real Time Clock (RTC): 146818AF
❑Super Integration (SI), T9920, which stores the following components:
One Floppy Disk Controller (FDC): TC8565
One Variable Frequency Oscillator (VFO): TC8568
❑Keyboard Controller (KBC): M37452M4
❑Power Supply Controller (PSC): U47C660
❑Memory:
Standard RAM: 2MB
BIOS ROM: 128KB (96KB are used)
BIOS ROM contains the Initial Reliability Test (IRT), the system’s
Basic Input/Output System (BIOS), and the video BIOS.
Video RAM: 256KB
Cache memory: 64KB
Optional memory cards can expand the memory to a maximum of 18MB.
❑IC card controller gate array: GA-ICCNT (144-pin)
❑Refresh controller gate array: GA-REFCNT (44-pin)
❑VGA display controller (WD90C21): PVGA1F (132-pin)

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❑The following Oscillators (OSCs):
50.0MHz OSC (X1) and 16.0MHz OSC (X2) are used for the CPU.
14.7456MHz OSC (X3) is used for the COM.
14.31818MHz OSC (X4) is used for the KBC.
24MHz OSC (X5) is used for the FDC and VFO.
32.768KHz OSC (X6) is used for the RTC.
44.9MHz OSC (X7), 28.322MHz OSC (X8), and 25.175MHz OSC (X9) are used for the
video.
See Appendix A for the locations of the oscillators on the system board.

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1.3 3.5-inch Floppy Disk Drive
The T3300SL 3.5-inch Floppy Disk Drive (FDD) is a thin, high performance, reliable drive that
supports 720KB (formatted ) 2DD and 1.44MB (formatted) 3.5-inch floppy diskettes.
The T3300SL FDD is shown in Figure 1-4. Specifications for the FDD are described in Table 1-1.
Figure 1-4 3.5-inch FDD
Table 1-1 3.5-inch FDD specifications
Item2-Mbytemode1-Mbytemode
Storagecapacity(Kbyte)
Unformatted
Formatted2,000
1,440 1,000 720
Numberofheads2 2
Numberofcylinders80 80
Access time(ms)
Tracktotrack
Average
Headsettling time
3
94
15
3
94
15
Recording trackdensity(tpi)135 135
Datatransferrate(Kbps)500 250
Rotation speed(rpm)300 300
Recording method ModifiedFrequencyModulation (MFM)

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1.4 2.5-inch Hard Disk Drive
The 80MB or 120MB (formatted) Hard Disk Drive (HDD) is a random access, nonvolatile storage
device. It is equipped with a non-removal 2.5-inch magnetic disk and mini-Winchester type
magnetic heads.
The T3300SL HDD is shown in Figure 1-5. Specifications for the HDD are described in Table 1-2.
Figure 1-5 2.5-inch HDD
Table 1-2 2.5-inch HDD specifications
*Run Length Limited
Item80MB120MB
JDE2085M MK2024FCMK2124FC
Storagecapacity
Formatted(MB)85.68 86.0 130.1
Numberofdisks2 2 2
Dataheads4 4 4
Datasurfaces4 4 4
Trackspersurface 791(+2)977 934
Sectorspertrack 35(+1)43(+3)55(+1)
Bytespersector512 512 512
Access time(ms)
Tracktotrack
Average
Maximum
9
25
47
5
19
40
5
17
36
Rotation speed(rpm)3,118 3,200 3,200
Datatransferrate(MB/S)
To/frommedia5.0M5.0M6.5M
Interleave1:1 1:1 1:1
Recor
di
ng met
h
o
d 1
-7RLL
1
-7RLL
1
-7RLL

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1.5 Keyboard
The 82-key (USA) or 84-key (European) keyboard is mounted on the system unit. The keyboard is
connected to the keyboard controller on the system board through a 19-pin flat cable. The key-
board is shown in Figure 1-6.
See Appendix E for optional keyboard configurations.
Figure 1-6 Keyboard

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1.6 Sidelit Liquid Crystal Display
The sidelit Liquid Crystal Display (LCD) contains a LCD module, a Fluorescent Lamp (FL), and an
FL inverter board.
1.6.1 LCD Module
The T3300SL sidelit LCD supports 640x480 pixels with the High Resolution Graphics Subsystem
(HRGS) and a 32 levels of gray (at a resolution of 320 x 200). The HRGS includes the functions of
the Video Graphics Array (VGA).
The LCD receives vertical and horizontal synchronizing signals, 8-bit data signals (4-bit upper data
signal, 4-bit lower data signal), and shift clock for data transmission from the PVGA1F Video
Controller. All signals are CMOS-level compatible.
The sidelit LCD is shown in Figure 1-7. Specifications for the LCD are described in Table 1-3.
Figure 1-7 Sidelit LCD
Table 1-3 Sidelit LCD specifications
ItemSpecifications
Numberofdots(dots)640 x 480
Dotdimension (mm)0.24(W)x0.24 (H)
Dotpitch(mm)0.27 (W)x0.27 (H)
Displayarea (mm)196.0(W)x147.06 (H)
Contrast15:1(typ.)
FLcurrent(mA)4.0to6.0
FLfrequency(KHz)35 to43

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1.6.2 FL Inverter Board
The FL inverter board supplies the high frequency current needed to illuminate the LCD’s fluores-
cent lamp.
The specifications for the FL inverter board are described in Table 1-4.
Table 1-4 FL inverter board specifications
ItemSpecifications
InputVoltage(VDC)11-26
Power (W)2.8(Max.)
OutputVoltage(VAC)1100 (r.m.s.)
Current(mA)5.5(r.m.s.)
Frequency(KHz)44
Boundsofcurrent(mA)2.5-5.5

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1.7 Power Supply Board
The power supply board supplies five voltages to the system board. The power supply board has
one microprocessor which operates at 500KHz.
The power supply board contains the following functions:
❑Determines if the AC adapter or battery is connected to the computer.
❑Detects DC output and circuit malfunctions.
❑Controls the LED indicator panel and speaker.
❑Turns the battery charging system on and off and detects a fully charged battery.
❑Determines if the power can be turned on and off.
❑Provides more accurate detection of a low battery.
❑Calculates the remaining battery capacity.
The power supply board is shown in Figure 1-8 and the output ratings are specified in Table 1-5.
Figure 1-8 Power supply board
Table 1-5 Power supply board output rating
ItemDC
voltage
(V)
Regulation
Tolerance
(%)
Maximum
Current
(mA)
Systemlogic,FDD,HDC,HDD (VCC)+5 ±5 2,600
Backup RAM(RAMV)+4.7 ±5 950
RS-232-C(VDD)+12 ±5 75
RS-232-C(VEE) -9±15 60
Sidelit LCD(DSPV)+12 to+18.9 200

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Chapter 2
TroubleshootingProcedures

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Contents
2.1 T3300SL Troubleshooting ................................................................................................... 2-5
2.2 Troubleshooting Flowchart ..................................................................................................2-6
2.3 Power Supply Board Troubleshooting Procedures ............................................................... 2-8
Procedure 1 AC Adapter Check ................................................................................... 2-8
Procedure 2 Battery Indicator Function Check ............................................................2-9
Procedure 3 Power Supply Board Connection Check................................................. 2-10
2.4 System Board Troubleshooting Procedures........................................................................ 2-12
Procedure 1 Message Check ...................................................................................... 2-12
Procedure 2 Printer Port LED Check ......................................................................... 2-15
Procedure 3 Diagnostic Test Program Execution Check ............................................ 2-19
2.5 Floppy Disk Drive Troubleshooting Procedures................................................................. 2-20
Procedure 1 FDD Head Cleaning Check .................................................................... 2-20
Procedure 2 Internal and External FDD Check .......................................................... 2-20
Procedure 3 Diagnostic Test Program Execution Check ............................................ 2-21
Procedure 4 Connector Check and Replacement Check............................................. 2-22
2.6 Hard Disk Drive Troubleshooting Procedures.................................................................... 2-23
Procedure 1 Partition Check ...................................................................................... 2-23
Procedure 2 Message Check ...................................................................................... 2-24
Procedure 3 Format Check ........................................................................................ 2-25
Procedure 4 Diagnostic Test Program Execution Check ............................................ 2-26
2.7 Keyboard Troubleshooting Procedures .............................................................................. 2-27
Procedure 1 Diagnostic Test Program Execution Check ............................................ 2-27
Procedure 2 Connector and Replacement Check........................................................ 2-27
2.8 Display Troubleshooting Procedures ................................................................................. 2-28
Procedure 1 Brightness and Contrast Volume Check................................................. 2-28
Procedure 2 External CRT Check .............................................................................. 2-28
Procedure 3 Diagnostic Test Program Execution Check ............................................ 2-28
Procedure 4 Connector Check.................................................................................... 2-29
Procedure 5 Replacement Check ............................................................................... 2-29
Tables
Table 2-1 Power supply error statuses ......................................................................................2-9
Table 2-2 Printer port LED error codes .................................................................................. 2-17
Table 2-3 Floppy disk drive error codes and statuses ............................................................. 2-21
Table 2-4 Hard disk drive error codes and statuses................................................................. 2-26
Figures
Figure 2-1 Troubleshooting flowchart ....................................................................................... 2-6
Figure 2-2 Printer port LED..................................................................................................... 2-15
Figure 2-3 Reading the printer port LED ................................................................................. 2-15

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