Panasonic Toughbook CF-28 Series User manual

ORDER NO.CPD0102001C0
Notebook Computer
© 2001 Matsushita Electric Industrial Co., Ltd.
All rights reserved. Unauthorized copying and
distribution is a violation of law.
Model Number Reference
This is the Service Manual for
the following areas.
M ...for U.S.A.and Canada
E ...for U.K.
G ...for Germany
F ...for France
S ...for Sweden
T ...for Italy
P ...for Spain
The models in the CF-28 series are numbered in accordance with the types of the CPU, LCD
and HDD etc. featured by the product.
WARNING
This service information is designed for experienced repair technicians only and is not designed for use by the general public. It does not contain
warnings or cautions to advise non-technical individuals of potential dangers in attempting to service a product. Products powered by electricity
should be serviced or repaired only by experienced professional technicians. Any attempt to service or repair the product or products dealt with in
this service information by anyone else could result in serious injury or death.
Model No.CF-28 Z
LCD type
C: for 13.3" TFT Color
with Touch Screen
HDD type / RAM size
F: 20 GB / 128 MB
Area
M: for U.S.A. and Canada
E: for U.K.
G: for Germany
F: for France
S: for Sweden
T: for Italy
P: for Spain
Drive
A: Floppy Disk drive
CPU type
M: for Intel®Mobile Pentium®III
Processor 600 MHz
Operating System
C: Microsoft®Windows NT®
D: Microsoft®Windows®2000
E: Microsoft®Windows®98
CF-28
When this product is repaired, the Access Key is necessary
to release security of electrical and mechanical.
Ask the customer to provide the Access Key with this product.

- 2 -

LASER SAFETY INFORMATION
For U.S.A.
Class 1 LASER-Product
This product is certified to comply with DHHS Rules 21 CFR Subchapter J.
This product complies with European Standard EN60825 (or IEC Publication 825).
For all areas
This equipment is classified as a class 1 level LASER product and there is no hazardous LASER radiation.
Caution:
(1) Use of controls or adjustments or performance of procedures other than those specified herein may result in
hazardous radiation exposure.
(2) The drive is designed to be incorporated into a computer-based system or unit which has an enclosing cover.
It should never be used as a stand alone drive.
Danger:
The serviceman should not remove the cover of drive unit and should not service because the drive unit is a non-
serviceable part.
• Unplug the AC power cord to the equipment before opening the top cover of the drive.
• When the power switch it on, do not place your eyes close to the front panel door to look into the interior of the unit.
LASER Specification
Class 1 level LASER Product
Wave Length : DVD 658 ±8 nm
CD 775 ~ 815 nm
Laser safety information is appropriate only when drive with laser is installed.
CAUTION
Danger of explosion if battery is incorrectly replaced.
Replace only with the same or equivalent type recommended by the equipment manufacture.
Discard used batteries according to the manufacturer's instructions.
Vorsicht!
Explosionsgefahr bei unsachgemäßem Austausch der Batterie. Ersatz nur durch denselben order einen vom
Hersteller empfohlenen ähnlichen Typ. Entsorgung gebrauchter Batterien nach Angaben des Herstellers.
LITHIUMBATTERIES
ATTENTION: IL Y A DANGER D'EXPLOSION S' IL Y A REMPLACEMENT INCORRECT DE LA PILE.
REMPLACER UNIQUEMENT AVEC UNE PILE DU MÈME TYPE OU D'UN TYPE RECOMMANDÉ PAR LE
CONSTRUCTEUR. METTRE AU RÉBUT LES PILES USAGÉES CONFORMÉMENT AUX INSTRUCTIONS DU
FABRICANT.
PILE AU LITHIUM
LITHIUM BATTERY
- 3 -

Contents
1. Specifications.......................................................
2. Name and Functions of Parts..........................
3. Technical information........................................
3.1. System Overview.............................................
3.2. System Memory Map.......................................
3.3. I/O Address Map..............................................
4. Diagnosis Procedure..........................................
4.1. Basic Procedures.............................................
4.2. Power-On Self Test (Boot Check)....................
4.3. List of Error Codes...........................................
4.4. Diagnosis Map..................................................
5. Diagnostic Test....................................................
5.1. Diagnostic Test Procedure...............................
5.2. Error Message..................................................
6. Disassembly/Reassembly.................................
6.1. Removing the Battery Pack..............................
6.2. Removing the HDD Unit...................................
6.3. Removing the Unit
from inside the Multimedia Pocket..................
6.4. Removing the Keyboard.................................
6.5. Removing the Display Unit...............................
6.6. Removing the RAM Card.................................
6.7. Removing the Lower Casing
and the Handle............................................
6.8. Removing the I/O Board.................................
6.9. Removing the Modem Board......................
6.10.Removing the MP Connection Unit..................
6.11.Removing the Main PCB.................................
6.12.Removing the Touch Pad Unit......................
6.13.Removing the PCMCIA CN
(PC Card Slot)..............................................
6.14.Removing RTC Battery....................................
6.15.Removing the INVERTER,
the Touch Screen PCB
and TS13 PCB.................................................
6.16.Removing the LCD
and the Touch Screen.....................................
7. Wiring Connection Diagram.............................
8. Exploded Views.................................................
9. Replacement Parts List...................................
1-1, 1-2
2-1, 2-2
3-1~3-4
3-1, 3-2
3-3
3-4
4-1~4-12
4-1
4-2
4-3, 4-4
4-5~4-12
5-1~5-15
5-1~5-9
5-10~5-15
6-1~6-5
6-1
6-1
6-2
6-2
6-3
6-3
6-3
6-4
6-4
6-4
6-4
6-5
6-5
6-5
6-6
6-6
7-1
8-1~8-6
9-1~9-10
- 4 -

This page provides the specifications for the basic model CF-28xxxxZxx. The model number will change depending on the
configuration of the unit, such as, CPU speed, memory size, HDD size and Operating System.
To check the model number:
Check the bottom of the computer or the box the computer came in at the time of purchase.
To check CPU speed:
Use DMI Viewer in [Start] - [Programs] - [Panasonic] - [DMI Viewer].
To check memory size and hard disk drive (HDD) size:
1Run the Setup Utility.
2The memory size is confirmed in [System Memory] of the [Main] menu. The hard disk drive size is confirmed in [Primary
Master] of the [Main] menu.
1. Specifications
*1A 16M color display is achieved by using the dithering function.
*21GB = 109bytes
Main Specifications
Model No.
CPU
Memory (Expandable to)
Video Memory
LCD Type
Displayed Colors*1
External Display
Hard Disk Drive
Operating System
Mobile Pentium®Processor
600 *5? featuring Intel®SpeedStep™ Technology
L1 Cache Memory: 32 %+
L2 (Second) Cache Memory: 256 %+
128 *+ (384 *+ Max. )
4 *+
13.3 type (TFT)
256/65536/16M colors (640 x 480 dots/800 x 600 dots/1024x768 dots)
256/65536/16M colors (640 x 480 dots/800 x 600 dots/1024x768 dots)
20 @+*2
Microsoft®Windows NT®(for CF-28MCFAZCx)
Microsoft®Windows®2000 (for CF-28MCFAZDx)
Microsoft®Windows®98 Second Edition ( FAT32 File System ) (for CF-28MCFAZEx)
CF-28MCFAZxx
1 - 1

720 %+/1.44 *+
PC Card Slots Two Type or Type , or one Type 
Allowable current 3.3 V: 400 /, 5 V: 400 /
(total for two slots)
RAM Module Slot*1144-pin, 3.3-8, SO-DIMM, SDRAM, PC100 Compliant
Parallel Port Dsub 25-pin female
External Display Port Mini Dsub 15-pin female
Serial Port Dsub 9-pin male
Microphone Jack*2Miniature jack, 3.5 DIA
Headphone Jack Miniature jack, 3.5 DIA
Impedance 32 , Output Power 4 A x 2
Infrared Communication Port IrDA 1.1 compliant, 4 Mbps data transmission speed*3
External Keyboard/Mouse Port Mini DIN 6-pin female
Expansion Bus Connector Dedicated 80-pin female
USB Port 4-pin
Internal Modem Data: 56 "# (V.90 & K56flex) FAX:14.4 "#
Touch Pad, Touchscreen (Anti-Reflection, Finger and stylus (included) touch capable)
Monaural Microphone (built in)
Monaural Speaker (built in)
Setup Utility, DMIViewer, Panasonic Hand Writing*4
16 #, 44.1 "5? PCM/FM Sound
Li-ion 11.1 8, 5.4 /
Operating Time*5Approx. 3.5 hours - 5.2 hours
Charging Time*5Power On Approx. 5.5 hours
Power Off Approx. 3.0 hours
Coin type lithium battery 3.0 8
Input 100 8- 240 8AC, 50 5?/60 5? Output 15.6 8DC, 3.85 /
Approx. 40 A*8/ Approx.60 A(maximum when recharging in the ON state)
In use Temperature 5 B& to 35 B& {41 B! to 95 B!}
Humidity 30Cto 80C65 (No condensation)
Not in use Temperature -20 B& to 60 B& {-4 B! to 140 B!}
Humidity 30Cto 90C65 (No condensation)
302  X 63.5  (at the rear)/65.5 (at the front) X 275 
{11.9 "X2.5/2.6 "X 10.8 "} (including the carrying handle, excluding protrusion)
Approx.4.1 " {Approx. 9.0 #.} (including the carrying handle)
Other Specifications
*1Only a RAM card designed for PC100 can be added.
*=Use only a monaural condenser microphone.
*DSeparate communications software is necessary.
Windows NT:The infrared data communications can not be used at 4 *# data transfer speed.
*EOnly Windows 98
*FVaries depending on the usage conditions, CPU speed, etc.
*GThe AC adaptor is compatible with power sources up to 240 8AC adaptor.
This computer is supplied with a 125 8AC compatible AC cord.
*1Approx.1.5 Awhen the battery pack is fully charged (or not being charged) and the computer is off.
*Rated power consumption.
Keyboard
Floppy Disk Drive
Slots
Interface
Pointing Device
Internal Microphone
Speaker
Utility Programs
Sound
Battery Battery Pack
Clock Battery
AC Adaptor*6
Power Consumption*7
Environment
Physical Dimensions (W X H X D)
Weight
87 keys for US market. 88 keys for European market.
1 - 2

2. Names and Functions of Parts

LED Indicators
LCD
Touch Pad
!"#
$#
Function Keys
Internal Microphone
#
'
DC-IN Jack
Infrared Communication Port
PC Card Slots
Internal Modem
+,
-.
/0 ,
$
Power Switch
Access Lock
LED Indicators
!#22

Carrying Handle
&"
3""3"
4"4"
*"$
5"
6$
+"
(
Security Lock
/##$
 !
,
#
LOCK
7$*, 
"#,-8&0
*9"

Fn + F5  F6 
Fn + F4
Speaker
Multimedia Pocket (Floppy Disk Drive)
:
2 - 1

USB Port
Parallel Port
Serial Port
External Display Port
Expansion Bus Connector
3/
/G(/
7

Microphone Jack
3

3
/


G
@ A
@A
*3

J
External Keyboard/Mouse Port
Hard Disk Drive
Headphone Jack
Battery Pack
MP Release Lever
65##
#:
Attaching the strap
2 - 2

3.Technical Information
3.1. System Overview
3.1.1 System Configuration
The main system is made up of a Main board, a RJ board, an IR board, a Battery board and a TS13 board.
Power Supply System Description On mode Suspend
mode Off/Hiber nation
VC system (VC5, VC3, VC25, VC18,
VC16, VC15) CPU and logic power supply ON OFF OFF
VB system (VB5, VB3) Logic power supply ON ON OFF
VA system (VA3) PMC power supply ON ON ON
VPP system (VPP) 12V power supply, for the card slot ON OFF OFF
Table 1: Description of Power Supply Systems
-+&.-/-
0-+&&&-+&+&.
%/'


Li-Ion BATTERY
11.1V
5400mAh
VA3
AC ADAPTOR 15.6V
VC1
VB3
VC3
VD12
DC/DC
CONVERTER
OUTPUT 5V
VOLTAGE
DETECTOR
BATTERY
CHARGER
AC IN*
DC/DC
CONVERTER
OUTPUT
1.6V /1.35V
DC/DC
CONVERTER
OUTPUT 3.3V
AC ON*
OVERVOL
VOLTAGE
REGULATOR
OUTPUT12V
VC5
VOLTAGE
DETECTOR
VOLTAGE
DETECTOR
VOLTAGE
DETECTOR
SUSB*
SUSB*
SUSB*
SUSC*
OVERVOL
VM1
ACVOK
VA5
AC15
OVERVOL
OVERVOL
VOLTAGE
REGULATOR
OUTPUT 1.5V
VD12ON
VGA_CORE
VOLTAGE
REGULATOR
OUTPUT 2.5V
VOLTAGE
REGULATOR
OUTPUT 2.5V
VCT
VC25
VB5
SUSC*
 !" #$"%&'()$"*##"*&+,&##"($"*
&##"


3 - 1

PR-HeadPhone
PR-Mic.
PR-CRT
PR-USB
PR-PS/2
(
KB& Mouse
)
PR-Parallel
PR-Serial A
PR-Serial B
AUX sound
MM
MMoo oobb bbii iill llee ee
PP
PPee eenn nntt ttii iiuu uumm mm
ii
iinn nntt tt ll
ll
ee
ee
Port Re
p
licator-CN
BIOS
FlashROM
512KB
Super I/O
PC97338
NS
64bit Host Bus
FD
KBC
Int. KB
Tou ch P a d
PS/2 Port
EC
(PMC)
Li-Ion
Battery Pack
PR-Serial
Parallel
1
6
/
8b
i
t
I
S
A/EI
O
B
us
32bit PCI Bus
1.5V GTL
PCI ISA
Brid
g
e
PIIX4M
INTEL
IDE
Interface
USB
Interface
HDD
20GB2.5inch
Primary
443BX
INTEL
Host PCI
Bridge
DRAM
Interface
Extension Memory
SDRAM
2
56
MB
Main Memory SDRAM
64MB/128MB
LCD
12.1Ó
13.3Ó
CRT
LynxEM4
SMI
VRAM
4.0MB
VGA AGP Bus
SOUND
ES1988
ESS
Ext. MIC
S
p
eaker
AMP
PCMCIA
478II
RICOH
Tou ch
Screen
Super I/O
PC97338
NS
Mini-PCI TypeIII
(Slot B)
PCMCIA
475
RICOH
CD-ROM X24max
Su
p
erDISK
(
120MB
)
Secondary
DVD-ROM X4max
Int. MIC
Mini-PCI TypeIII
(Slot A)
Modem
Serial
GPS
or Serial D
Wireless Modem
or Serial C
IrDA
Analog-SW
Head
p
hone
RJ11
TYPE-II (SLOT A)
TYPE-II (SLOT B) TYPE-II (SLOT C)
SW
Telephony (Mono-out / Phone)
Tester
Selector
Selector G/A
Configuration I/F
System Congiguration Diagram
3 - 2