Text preview for : panasonic cf-73.pdf part of panasonic CF73 This is the service manual for a panasonic toughbook that starts with model number CF-73E. It is also known as the MK1. This is a four part service manual.
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ORDER NO. CPD0304020C1
Notebook Computer
CF-73
This is the Service Manual for
the following areas.
M ...for U.S.A. and Canada
Model Number Reference
The following models are numbered in accordance with the types of CPU, LCD and HDD etc. featured by product.
Model No. CF-731 2 3 4 X 5 6
1: CPU type
E: Intel® Pentium® M Processor 1.4 GHz
2: LCD type
3: 13.3-type TFT /XGA Color
3: HDD type / RAM size
K: 40 GB / 256 MB
4: Drive / Modem LAN
V: DVD-ROM Drive / Wireless LAN
5: Operation System
D: Microsoft® Windows® 2000
K: Microsoft® Windows® XP Professional
6: Area
M: Refer to above area table
2-1
LASER SAFETY INFORMA TION
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.
Please check DANGER label on PD-drive unit.
· 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.
2-2
2-3
2-4
CONTENTS
1 Specifications. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4
2 Names and Functions of Parts. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6
3 Block Diagram. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8
4 System Memory Map ........................................................ 9
5 I/O Adress Map. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10
6 Diagnosis Procedure. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 11
7 Power-On Self Test (Boot Check). . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 12
8 List of Error Codes. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 13
9 Diagnosis. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 15
10 Diagnostic Test. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 22
11 Self Diagnosis Test. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 23
12 Wiring Connection Diagram. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 29
13 Disassembly/Reassembly. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 30
14 Exploded View. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 35
15 Replacement Parts List . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 38
3
1 Specfication
4
2 Names and Functions of Parts
Wireless LAN Antenna
LCD
LED Indicators
Power status
Power Switch Battery pack status
Before using the computer Ventilation Hole
for the first time, carefully This hole allows heat to exit.
read the [LIMITED USE LI-
CENSE AGREEMENT]. If CAUTION
you agree to the conditions, Do not block or place the computer in a
remove the seal. location that may prevent proper venti-
lation.
External Display Port
PC Card Slots
Serial Port
Use this port to a serial mouse or serial com-
USB Ports munication devices.
Speakers
Sound is output from Card Speakers built into the back
panel of the LCD screen.
To adjust the volume:
Fn + F5 / Fn + F6
Speaker on/off : Fn + F4
LED Indicators
Caps Lock
Numeric Key (NumLk)
Scroll Lock (ScrLk)
Multimedia pocket device status
Function Keys
Hard disk drive status
For information on the key combi-
nations available.
Touch Pad
DC-IN Jack DC IN 15.1-16.0 V
Appendix
Multimedia Pocket
Carrying Handle
For enhanced portability and
in-the-field efficiency.
6
Modem Headphone Jack
Use this jack to connect head-
I/O Box Connector phones or amplifier-equipped
For connecting printer, external mouse, keyboard, speakers. Audio output from the
etc., through the I/O box (optional). internal speaker is disabled when
headphones or external speakers
are connected.
Ventilation Hole
This hole allows heat to exit.
CAUTION
Do not block or place the computer in a
location that may prevent proper venti-
Microphone Jack
lation.
Use only a monaural condenser
microphone (miniature jack). Us-
ing an input source other than a
LAN monaural condenser microphone
may not allow audio to be input or
may damage the equipment.
Expansion Bus Connector
MP Release Button
RAM Module Slot
Battery Pack
7
3 Block Diagram
System Confugration Diagram
8
4
9
5 I/O Address Map
0x0000-0x0CF7 PCI bus
0x0000-0x0CF7 Direct memory access controller
0x0D00-0xFFFF PCI bus
0x3000-0x3FFF Intel(R) 82855PM Processor to AGP Controller - 3341
0x3000-0x3FFF MOBILITY RADEON 7500
0x03B0-0x03BB Intel(R) 82855PM Processor to AGP Controller - 3341
0x03B0-0x03BB MOBILITY RADEON 7500
0x03C0-0x03DF Intel(R) 82855PM Processor to AGP Controller - 3341
0x03C0-0x03DF MOBILITY RADEON 7500
0x1820-0x183F Intel(R) 82801DB/DBM USB Universal Host Controller - 24C2
0x1800-0x181F Intel(R) 82801DB/DBM USB Universal Host Controller - 24C4
0x1840-0x185F Intel(R) 82801DB/DBM USB Universal Host Controller - 24C7
0xFD00-0xFDFF Ricoh R/RL/5C476(II) or Compatible CardBus Controller
0xFC00-0xFCFF Ricoh R/RL/5C476(II) or Compatible CardBus Controller
0xDFF0-0xDFFF PCMCIA IDE/ATAPI Controller
0xFA00-0xFAFF Ricoh R/RL/5C476(II) or Compatible CardBus Controller
0xF900-0xF9FF Ricoh R/RL/5C476(II) or Compatible CardBus Controller
0x4000-0x40FF Realtek RTL8139 Family PCI Fast Ethernet NIC
0x0A79-0x0A79 ISAPNP Read Data Port
0x0279-0x0279 ISAPNP Read Data Port
0x0274-0x0277 ISAPNP Read Data Port
0x0081-0x008F Direct memory access controller
0x00C0-0x00DF Direct memory access controller
0x0020-0x0021 Programmable interrupt controller
0x00A0-0x00A1 Programmable interrupt controller
0x0040-0x0043 System timer
0x0061-0x0061 System speaker
0x0070-0x0071 System CMOS/real time clock
0x00F0-0x00FF Numeric data processor
0x0062-0x0062 Microsoft ACPI-Compliant Embedded Controller
0x0066-0x0066 Microsoft ACPI-Compliant Embedded Controller
0x0060-0x0060 Standard 101/102-Key or Microsoft Natural PS/2 Keyboard
0x0064-0x0064 Standard 101/102-Key or Microsoft Natural PS/2 Keyboard
0x03F8-0x03FF Communications Port (COM1)
0x02F8-0x02FF Communications Port (COM2)
0x0378-0x037F ECP Printer Port (LPT1)
0x0778-0x077F ECP Printer Port (LPT1)
0x1860-0x186F Intel(R) 82801DBM Ultra ATA Storage Controller - 24CA
0x01F0-0x01F7 Primary IDE Channel
0x03F6-0x03F6 Primary IDE Channel
0x0170-0x0177 Secondary IDE Channel
0x0376-0x0376 Secondary IDE Channel
0x1880-0x189F Intel(R) 82801DB/DBM SMBus Controller - 24C3
0x1C00-0x1CFF SigmaTel C-Major Audio
0x18C0-0x18FF SigmaTel C-Major Audio
0x2400-0x24FF PCTEL 2304WT V.92 MDC Modem
0x2000-0x207F PCTEL 2304WT V.92 MDC Modem
10
6
11
7 Power-On Self Test (Boot Check)
Outline of POST
The set has a boot check function called POST (Power-On Self Test) in it. The condition of the main body is diagnosed by checking
beep sound or error code.
z Start .............Test begins automatically when power switch is set to ON.
z Normal finish .....After memory checking, a beep sound is issued once and the set is placed into automatic stop.
Note: If no error occurs, nothing is displayed. (No display of OK, etc.)
Error Diagnosis by Checking Beep Signal Sound
The beep sound is as follows:
(1 (long sound) -2-3-4)
(Length of bar shows length of sound.)
= long sound (about 0.4 sec.), = short sound (about 0.2 sec.), Length between sounds is about 0.1 sec.
z Table of errors classified by beep sounds
Diagnosis Beep signal sound Error message
Main board 1(long sound)-2 BIOS ROM error
1-2-2-3 BIOS ROM error
1-3-1-1 RAM error
1-3-1-3 Keyboard controller error
1-3-4-1 RAM error
1-3-4-3 RAM error
1-4-1-1 RAM error
2-1-2-3 BIOS ROM error
2-2-3-1 Occurrence of unexpected offering
(Note) A beep sound is also issued in case of other I/O trouble.
12
8 List of Error Codes
The following is a list of the messages that BIOS can display. Most of them occur during
POST. Some of them display information about a hardware device, e.g., the amount of memory
installed. Others may indicate a problem with a device, such as the way it has been configured.
Following the list are explanations of the messages and remedies for reported problems.
If your system displays one of except the messages marked below with an asterisk (*), write
down the message and contact Panasonic Technical Support. If your system fails after you
make changes in the Setup menus, reset the computer, enter Setup and install Setup defaults
or correct the error.
0200 Failure Fixed Disk
Fixed disk in not working or not configured properly. Check to see if fixed disk is attached
properly. Run Setup. Find out if the fixed-disk type is correctly identified.
0210 Stuck key
Stuck key on keyboard.
0211 Keyboard error
Keyboard not working.
0212 Keyboard Controller Failed
Keyboard controller failed test. May require replacing keyboard controller.
0213 Keyboard locked - Unlock key switch
Unlock the system to proceed.
0230 System RAM Failed at offset : nnnn
System RAM failed at offset nnnn of in the 64k block at which the error was detected.
0231 Shadow RAM Failed at offset : nnnn
Shadow RAM failed at offset nnnn of the 64k block at which the error was detected.
0232 Extended RAM Failed at offset : nnnn
Extended memory not working or not configured properly at offset nnnn.
0250 System battery is dead - Replace and run SETUP
The CMOS clock battery indicator shows the battery is dead. Replace the battery and run Setup
to reconfigure the system.
*0251 System CMOS checksum bad - Default configuration used
System CMOS has been corrupted or modified incorrectly, perhaps by an application program
that changes data stored in CMOS. The BIOS installed Default SETUP Values. If you do not
want these values, enter Setup and enter your own values. If the error persists, check the system
battery or contact Panasonic Technical Support.
0260 System timer error
The timer test failed. Requires repair of system board.
0270 Real time clock error
Real-time clock fails BIOS test. May require board repair.
*0280 Previous boot incomplete - Default configuration used
Previous POST did not complete successfully. POST loads default values and offers to run
Setup. If the failure was caused by incorrect values and they are not corrected, the next boot
will likely fail. On systems with control of wait states, improper Setup settings can also termi-
nate POST and cause this error on the next boot. Run Setup and verify that the wait-state
configuration is correct. This error is cleared the next time the system is booted.
0281 Memory Size found by POST differed from EISA CMOS
Memory size found by POST differed from EISA CMOS.
13
02D0 System cache error - Cache disabled
Contact Panasonic Technical Support.
02F0: CPU ID:
CPU socket number for Multi-Processor error.
02F4: EISA CMOS not writable
ServerBIOS2 test error: Cannot write to EISA CMOS.
02F5: DMA Test Failed
ServerBIOS2 test error: Cannot write to extended DMA (Direct Memory Access) registers.
02F6: Software NMI Failed
ServerBIOS2 test error: Cannot generate software NMI (Non-Maskable Interrupt).
02F7: Fail - Safe Timer NMI Failed
ServerBIOS2 test error: Fail-Safe Timer takes too long.
device address Conflict
Address conflict for specified device.
Allocation Error for: device
Run ISA or EISA Configuration Utility to resolve resource conflict for the specified device.
Failing Bits : nnnn
The hex number nnnn is a map of the bits at the RAM address which failed the memory test.
Each 1 (one) in the map indicates a failed bit. See error 230,231 or 232 for offset address of the
failure in System, Extended or Shadow memory.
Invalid System Configuration Data
Problem with NVRAM (CMOS) data.
I/O device IRQ conflict
I/O device IRQ conflict error.
Operating System not found
Operating system cannot be located on either drive A: or drive C:. Enter Setup and see if fixed
disk and drive A: are properly identified.
Parity Check 1 nnnn
Troubleshooting
Parity error found in the system bus. BIOS attempts to locate the address and display it on the
screen. If it cannot locate the address, it displays ????. Parity is a method for checking errors
in binary data. A parity error indicates that some data has been corrupted.
Parity Check 2 nnnn
Parity error found in the I/O bus. BIOS attempts to locate the address and display it on the
screen. If it cannot locate the address, it displays ????.
Press to resume, to Setup
Displayed after any recoverable error message. Press to start the boot process or to
enter a Setup and change the settings. Write down and follow the information shown on the
screen.
14
9 Diagnosis
9.1 MAIN UNIT DIAGNOSIS(1/2)
Make sure that connecting cables, connectors and AC adapter are not loose or disconnected prior to testing.
Troubleshooting Source of
No. Symptom Component
No. procedures Result problem
1 No power is sent to the Is 15V applied to pins 1-3 of YES Go to No.1-3
1-1
unit. (When using AC) Q710? (Whichever one)? NO Go to No.1-2
Is 15V applied to pins 5-8 of YES Go to No.1-3 Q699
1-2
Q699? NO Go to No.1-2
If voltage is 0V
during the power
Before setting the power YES switch is set to
switch to ON, check voltage ON.
1-3
on either side of SW1000 Is If not 0V SW1000
Voltage 3.3V? If voltage of C738 R705
NO is 3.3V R706
If lower than 3V IC617
No power is sent to the
unit. (When using the Is 8-12V applied to pins 1 of YES If voltage is 8-12V
1-5
Battery Pack) Q681? (Whichever one)
NO Main PCB Q681
2 Power cuts off during If they show R589
operation. Check soldered parts of NO soldered R584, R585
2-1 D666 D668 completely R501 R506
D463 D468. IC605, IC606
YES
IC616
9.2 MAIN UNIT DIAGNOSIS(2/2)
Make sure that connecting cables, connectors and AC adapter are not loose or disconnected prior to testing.
Troubleshooting Source of
No. Symptom Component
No. procedures Result problem
1 When a device is Are there system files in the YES Go to No.1-2
1-1
selected for "Boot Up device selected? NO Improper setting
Drive", the system boots
Device for which
from a different device. Does the unit operate
YES the problem
1-2 normally after replacing the
occurred
problem device.
NO Main PCB IC3
2 Date or Time cannot be
input.
Date and Time does not IC3
change properly. 2-1 Replace the Main PCB. Main PCB X2
Date and Time are not RTC battery
displayed.
3 Memory count is too large IC4-11
3-1 Replace the Main PCB. Main PCB
or too small. IC2
15
Troubleshooting Source of
No. Symptom Component
No. procedures Result problem
4 No Sound YES Software setting
4-1 Check software setting.
Volume does not work. NO Go to No.4-2
Replace the Speakers. YES Speakers
4-2 Does operation return to
normal? NO Go to No.4-3
IC1000
4-3 Replace the Main PCB. Main PCB IC1003
IC1004
Default configuration in
5 use 5-1 Check configuration. Configuration
6 Interrupt controller failure 6-1 Main PCB IC3
7 Timer failure 7-1 Main PCB
8 Expansion card RAM Does the system return to YES Go to No.8-2
checksum error 8-1 normal if the expansion card IC3
is removed? NO Main PCB
IC2
Replace the expansion card. YES Expansion card
8-2 Does operation return to
normal? NO Main PCB
9 Real Time Clock failure 9-1 Main PCB IC3
10 Dead RTC Battery Error during
Does resetting through YES
10-1 SETUP
SETUP correct the problem?
NO Go to No.10-2
Replace the battery. YES Battery RTC battery
10-2 Does operation return to
normal? NO Main PCB IC3
11 Configuration error 11-1 Check configuration. Configuration
12 CMOS Checksum error Were the correct settings YES Go to No.12-2
12-1
selected during SETUP? NO Go to No.12-4
Replace the FDD. YES FDD
12-2 Does operation return to
normal? NO Go to No.12-3
Replace the HDD. YES HDD
12-3 Does operation return to
normal? NO Go to No.12-4
Error during
YES
Does resetting through SETUP
12-4
SETUP correct the problem? IC3
NO Main PCB
X2
13 Real Time Clock is not Does resetting the date/time Error during
updating YES
13-1 in SETUP correct the SETUP
problem? NO Main PCB IC3
14 Memory size/data error Replace the expansion RAM Expansion RAM
card. YES
card
14-1 Does operation return to
normal? (Go to "NO" if not IC2
NO Main PCB
connected.) IC4-11
15 PCI failure Does the system return to YES Go to No.15-2
15-1 normal if the expansion card
is removed? NO Main PCB IC2
Replace the expansion card. YES Expansion card
15-2 Does operation return to
normal? NO Main PCB IC2
16
9.3 LCD DIAGNOSIS
Make sure that connecting cables, connectors and AC adapter are not loose or disconnected prior to testing.
Troubleshooting Source of
No. Symptom Component
No. procedures Result problem
1 No picture appears on the Does the LCD display Brightness
screen. YES
1-1 properly after brightness level adjustment
is adjusted? NO Go to No.1-2
Replace the LCD. YES LCD
1-2 Does operation return to
normal? NO Go to No.1-3
Replace the Main PCB. YES Main PCB IC800
1-3 Does operation return to
normal? NO LCD cable
2 Display is too dark or too Does the LCD display Brightness
bright. YES
2-1 properly after brightness level adjustment
is adjusted? NO Go to No.2-2
Replace the LCD. YES LCD
2-2 Does operation return to
normal? NO Go to No.2-3
Replace the Main PCB. CN801
YES Main PCB
2-3 Does operation return to IC14
normal? NO LCD cable
3 Part of the screen does Replace the LCD. YES LCD
not display properly. 3-1 Does operation return to
Display quality poor. normal? NO Go to No.3-2
(Fuzzy or slanted, etc.)
Replace the Main PCB. YES Main PCB IC800
3-2 Does operation return to
normal? NO LCD cable
4 Backlight does not turn Replace the Inverter PCB. YES Inverter PCB
on. 4-1 Does operation return to
normal? NO Go to No. 4-2
Replace the Inverter cable. YES Inverter cable
4-2 Does operation return to
normal? NO Go to No. 4-3
Replace the Backlight. YES Backlight
4-3 Does operation return to CN801
normal? NO Main PCB
IC14
17
9.4 KEYBOARD
Make sure that connecting cables, connectors and AC adapter are not loose or disconnected prior to testing.
Troubleshooting Source of
No. Symptom Component
No. procedures Result problem
1 Key top cannot be
pressed.
Key top does not spring 1-1 Keyboard is broken. Keyboard
back after pressing.
2 None of the keys function. Replace the keyboard and YES Keyboard
Certain keys do not 2-1 see if inputting from the
function. keyboard function normally? NO Main PCB
3 Input character is Does the screen mode YES Go to No.3-2
displayed as garbage. 3-1 correspond to the key entry Operating
mode? NO
mistake
Is the keyboard setting in the YES Go to No.3-3
3-2
operating system correct? NO Software setting
Replace the keyboard and YES Keyboard
3-3 see if inputting from the
keyboard functions normally? NO Main PCB IC14
4 Mouse does not function. Replace the mouse. YES Mouse
Inputs from the mouse 4-1 Does operation return to
are not accepted properly. normal? NO Main PCB IC14
5 Touch pad not function. Replace the touch pad. YES Touch Pad
Input from the track ball 5-1 Does operation return to
are not accepted properly. normal? NO Go to No.5-2
Replace the touch pad FPC. YES Touch Pad FPC
5-2 Does operation return to
normal? NO Main PCB IC14
6 Keyboard failure YES Go to No.7
Is the keyboard properly Keyboard was not
6-1
connected? NO connected
properly
7 Keyboard interface failure Replace the keyboard. YES Keyboard
7-1 Does operation return to
normal? NO Main PCB IC14
18
9.5 HDD DIAGNOSIS
Make sure that connecting cables, connectors and AC adapter are not loose or disconnected prior to testing.
Troubleshooting Source of
No. Symptom Component
No. procedures Result problem
1 Does not boot from HDD. Has the HDD been YES Go to No.3-2
1-1
partitioned? NO Improper setting
YES Go to No.3-2
Are there system files on the
1-2 Software on the
HDD? NO
HDD
Replace the HDD. YES HDD
1-3 Does operation return to
normal? NO Go to No. 1-4
Replace the HDD cable. YES HDD cable
1-4 Does operation return to
normal? NO Main PCB IC3
2 Cannot read from HDD. Has the HDD been YES Go to No. 2-2
2-1
Cannot write to HDD. formatted? NO HDD format
Replace the HDD. YES HDD
2-2 Does operation return to
normal? NO Go to No. 2-3
Replace the HDD cable. YES HDD cable
2-3 Does operation return to
normal? NO Main PCB IC3
3 Damage to data written to Replace the HDD. YES HDD
HDD. 3-1 Does operation return to
Damage to data read normal? NO Go to No. 3-2
from HDD.
Replace the HDD cable. YES HDD cable
HDD contents are
3-2 Does operation return to
destroyed. NO Main PCB IC3
normal?
4 Diagnostic Test reports Replace the HDD. YES HDD
problem in HDC or HDD. 4-1 Does operation return to
normal? NO Main PCB IC3
5 Access lamp does not Has the HDD been YES Go to No. 5-2
5-1
light. configured in the OS? NO Improper setting
Replace the HDD. YES HDD
5-2 Does operation return to
normal? NO Go to No. 5-3
Replace the LED PCB. YES LED PCB LD1600
5-3 Does operation return to
normal? NO Go to No. 5-4
Replace the Main PCB. YES Main PCB IC3
5-4 Does operation return to
normal? NO HDD cable
6 Abnormal sound. 6-1 Replace the HDD. HDD
7 Hard disk failure Format data
Does executing FDISK YES
7-1 destroyed
correct the problem?
NO Go to No. 7-2
Replace the HDD. YES HDD
7-2 Does operation return to
normal? NO Go to No. 7-3
Replace the HDD cable. YES HDD cable
7-3 Does operation return to
normal? NO Main PCB IC3
19
Troubleshooting Source of
No. Symptom Component
No. procedures Result problem
8 An operating system Format data
Does executing FDISK YES
could not be found. 8-1 destroyed
correct the problem?
NO Go to No.8-2
Replace the HDD. YES HDD
8-2 Does operation return to
normal? NO Go to No.8-3
Replace the HDD cable. YES HDD cable
8-3 Does operation return to
normal? NO Main PCB IC3
9.6 SERIAL COMMUNICATION DIAGNOSIS
Make sure that connecting cables, connectors and AC adapter are not loose or disconnected prior to testing.
Troubleshooting Source of
No. Symptom Component
No. procedures Result problem
1 Data cannot be sent or YES Go to No.1-2
1-1 Is the COM port properly set?
received. NO Improper setting
Is the same transmission YES Go to No.1-3
1-2 protocol set for both the
sending and receiving units? NO Improper setting
Check the
Does the RS-232C on the YES interface with the
1-3 Main PCB operate normally other computer
under a loopback test? IC15
NO Main PCB
IC35
2 Unit will not communicate Is the connection cable a YES Go to No.2-2
with another computer 2-1 dedicated cross-patched
when connected directly. cable? NO Connection cable
Is the same transmission YES Go to No.2-3
2-2 protocol set for both the
sending and receiving units? NO Improper setting
Check the
Does the RS-232C on the YES interface with the
2-3 Main PCB operate normally other computer
under a reverse test? IC15
NO Main PCB
IC35
3 Unit will not communicate YES Go to No.3-2
3-1 Is the COM port properly set?
with modem. NO Improper setting
Is the transmission protocol YES Go to No.3-3
3-2
correct? NO Improper setting
Does the modem operate YES Line
3-3 normally under a local analog
loopback test? NO Go to No.3-4
Does the RS-232C on the YES Modem
3-4 main board operate normally IC15
under a loopback test? NO Main PCB
IC35
4 Diagnostic Test reports Is the loop back device IC15
problem in serial port. properly attached to the YES Main PCB
4-1 IC35
connector (for an external
loop back)? NO Improper setting
20
9.7 CD-ROM (DVD-ROM) Drive DIAGNOSIS
Make sure that connecting cables, connectors and AC adapter are not loose or disconnected prior to testing.
Troubleshooting Source of
No. Symptom Component
No. procedures Result problem
1 Access lamp does not Replace the CD-ROM drive. YES CD-ROM drive
light. 1-1 Does operation return to
normal? NO Go to No.1-2
Replace the LED PCB. YES LED PCB LD1007
1-2 Does operation return to
normal? NO Go to No. 1-3
Replace the Main PCB. YES Main PCB IC3
1-3 Does operation return to
normal? NO CD-ROM FPC
2 Cannot read from Replace the media. YES Media
CD-ROM. 2-1 Does operation return to
normal? NO Go to No. 2-2
Replace the CD-ROM drive. YES CD-ROM drive
2-2 Does operation return to
normal? NO Main PCB IC3
3 Tray does not open. Replace the CD-ROM drive. YES CD-ROM drive
3-1 Does operation return to
normal? NO Main PCB IC3
4 Abnormal sound. Replace the media. YES Media
4-1 Does operation return to
normal? NO CD-ROM drive
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10 Diagnostic Test
Diagnostic Test Procedure
10.1. Equipment
(1) Test Computer -------------------------------------------------------------------------- 1 unit
(2) IO BOX (CF-VEBU03) ---------------------------------------------------------------- 1 unit
(3) External Floppy Disk Drive (USB Port) ------------------------------------------- 1 unit
(4) AC Adapter ------------------------------------------------------------------------------ 1 pc.
(5) External Printer ------------------------------------------------------------------------- 1 unit
(6) Loopback Plug (Parallel Port Test) [P/N: DFWV95C0081] ------------------ 1 pc.
(7) Loopback Plug (Serial Port Test for RS232C) [P/N: DFWV95C0067] ----- 1 pc.
(8) Floppy Disk containing file DIAG ---------------------------------------------------- 1 pc.
10.2. Preparation
(1) Connect the computer to the IO BOX (CF-VEBU03).
(2) Connect the AC Adapter and External Equipments.
(3) The System Setup should be set to the factory setting values by executing the "SETUP UTILITY"
which can be invoked by F2 key at the POST.
If not, the messages and items of the diagnostic test may not be displayed properly on the LCD.
(4) The serial port must be enabled in the "SETUP UTILITY" in order to execute the "1st SERIAL
PORT" test.
(5) Connect the serial loopback plug.
(6) In order to test the parallel port with Loopback Plug, disconnect the printer cable and connect the
parallel loopback plug with Power OFF.
10.3. NOTICE
When "Enter password" is displayed, use "Password Skipping Plug" in order to skip the user password.
1) Connect the parallel plug to the parallel port.
2) Connect the PS/2 mouse plug to the mouse port.
3) Power on the computer.
The wiring of the parallel plug is described below.
Connect pins 2-5-6-8-11-13-15-18-19-20-21-22-23 to Shield GND (PS/2 mouse plug pin 3.)
Connect pins 3-4-7-9-10-12 to VC5 (PS/2 mouse plug pin 4) with 4.7KW each.
CAUTION
The plug described above must be used for servicing purpose only.
Do not use it for other than the above purpose and ensure that it remains confidential.
Using the plug enables the user to skip the previous password and disable the password.
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11 Self Diagnosis Test
Floppy disk is Included for the self-diagnostic tests that should be performed before using this product.
Important notice
1. System password
If the password function has been turned on, you will need to ask the user for the password
before performing the self-diagnostics.
2. FDD test
Performing the FDD test will erase the contents of the floppy disk you insert into the drive. Use
a formatted disk that has no contents or whose contents are not required. This product has a
password function. However, if this function is turned on, the self-diagnostics tests will not work.
11.1. Outline of Self Diagnostic Tests
Insert the diagnostics floppy disk
Starting up the setup utility
Turn on the power.
When "Panasonic Press F2 to enter setup" appears
on the screen, press F2.
Return the setup Press " " to select Exit
Press " " to select Get default value
contents to default Press Enter.
Choose Yes for "Load default Configuration now?"
Select "Save Values & Exit" and press Enter.
Choose Yes for "Save Configuration changes and exit now?"
and press Enter.
Choose test from Menu Screen
the menu screen 1. DIAG on FD
2. Memory Test
to start the test. 3. HDD read Test
4. Parallel test
Caution: 5. LAN Test
After completing repairs, be sure Q. Quit
to carry out the Automatic test Select please [ 1, 2, 3, 4, 5, Q ] ?
and Peripheraltest.
Tests selected (O) from the test The parallel port and CD-ROM Specifc tests required can
item list will be performed in drive can be tested. be freely selected and
succession. (See 12.3 for details.) performed from the test item
list.
1. DIAG on FD 2. Memory Test
3. HDD read Test Be sure to carry out the Selection
4. Parallel test test only when necessary.
5. LAN Test
Problems in the unit are located and divided according
to error messages that occur during testing.
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11.1.1. List of main test items
The Selection item displays the items selected under Automatic test. If you select Automatic test, these test items
will be performed automatically. You can use Selection test to choose items from the menu screen that you want to
have tested.
These items are shown below.
Test classification Test items shown on the screen Contents Select
1 SPEAKER TEST Speaker test
2 VESA MODE TEST VESA mode test
3 CPU A20 GATE TEST Address A20 line
4 (CPU related) CACHE ON/OFF TEST Cache memory on/off test
5 NPU OPERAND TEST Floating point processor function test
6 RAM (Memory related) RAM STANDARD TEST Memory standard test
7 CONTROL DMA PAGE REG TEST DMA page register test
8 (Control ICs on the main DMA REGISTER TEST DAM register test
9 board, etc.) DMAC TRANSFER TEST DAM transfer test
10 PIC HALT INSTRUCTION TEST Interrupt controller halt instruction test
11 PIC REGISTER TEST Interrupt controller register test
12 RTC CMOS RAM TEST Real time clock CMOS test
13 RTC TEST Real time clock test
14 PIT CH0 TEST interrupt timer CH0
15 PIT CH1 TEST interrupt timer CH1
16 PIT CH2 TEST interrupt timer CH2
17 IO KEYBOARD REG TEST Keyboard test
18 (Input-output) PS/2 MOUSE REG Mouse registration test
19 COMMUNICATION SERIAL WRAP TEST Serial loop back (jig required)
20 SERIAL ALL INTERNAL TEST Serial port interior test
21 PARALLEL REGISTER R/W Parallel register R/W test
22 AUX PCIC ALL TEST PCIC test
23 (Auxiliary functions) Card Bus Reg Card Bus register test
24 USB Reg USB register test
25 VIDEO VGA ALL TEST VGA test
26 (Display related) SVGA RAM TEST SVGA RAM test
27 DISK FD WT/RD/WP TEST FD WT, RD WP test
28 (FDD, HDD) HDD ALL TEST Only HDD lead test selected
29 UNIQUE ECP REGISTER R/W ECP register R/W test
30 (Individual functions) EPP REGISTER R/W EPP register R/W test
31 EXT. CMOS R/W TEST Extension CMOS R/W test
Test function settings Test condition save/play Following file command
Test automatic execute Test executed on run settings by selecting command
Error display (Paging style) Select displayed items Error, Log, Option
11.2. Automatic Test
Test execution
From the menu screen shown below For Celeron models Select and press Enter for DIAG on FD
1. DIAG on FD
2. Memory test
3. HDD read test
4. Parallel test
5. LAN test
Q. Quit
Select please [ 1, 2, 3, 4, 5, Q ] ?
menu screen
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Speaker test, VESA test
The speaker test involves listening to music and choosing OK or Not okay. The VESA test involves looking at
the display to see if it is satisfactory then choosing OK or Not okay.
Serial loop back test
The Automatic test's initial settings are set so that the serial loop back test will be executed. Connect the serial
loop back jig and then perform the test.
(This test is not executed on default mode)
Diagnostics result
If no errors occur. The screen shows the word "Pass" in large letters.
If errors occur. The test is stopped when an error occurs and the error message is displayed.
For explanations of error messages, see Error Messages and Problem Categories (section 4.5).
Quitting the test
At the screen shown below, simultaneously press the ALT and X keys.
Input screen
11.3. Peripheral Test
Test execution
From the menu screen shown below, be sure to choose the following items and press Enter.
1. DIAG on FD
2. Memory test
3. HDD read test
4. Parallel test
5. LAN test
Q. Quit
Select please [ 1, 2, 3, 4, 5, Q ] ?
menu screen
2. Memory Test
Read/Write test for on-board memory.
3. HDD read Test
Read test only.
25
4. Parallel test
This tests the functions of the parallel port.
1. Only prior to executing the parallel port test should you change the setup contents to those shown below.
[Changing the setup utility]
Turn on the power.
When "Panasonic", "Press F2 to enter setup" appears
on the screen, press F2.
Press " " to select Advanced.
Press " " to choose Mode.
Press Enter, choose Bidirectional, and then press Enter again.
Choose Yes for "Save Configuration changes and exit now?"
and press Enter.
2. Connect the parallel loop back jig to the parallel port.
3. Choose Parallel test and press Enter.
4. After the test is finished, return the setup contents to default.
5. LAN Test
This test checks for internal LAN device.
Choose LAN test and press Enter.
(CD-ROM test)
This tests the internal CD-ROM drive functions.
Choose CD-ROM test and press Enter.
11.4. Test Selection
Starting up the input menu
1. From the menu screen shown below, choose Quit and press Enter.
1. DIAG on FD
2. Memory test
3. HDD read test
4. Parallel test