Panasonic Cf29 Service Manual

							
                                                                                              ORDER NO. CPD0604068C1 
 
Notebook Computer 
                       CF-29 
 
 
 
 
 
 
Model No.  CF-29XXXXXXM  
 
 
 
  
This is the Service Manual for 
the following areas. 
M …for U.S.A. and Canada 
© 2006 Matsushita Electric Industria l Co., Ltd. All rights reserved.
Unauthorized copying and distributi on is a violation of law.  
						

							
This apparatus must be earthed for your safety.
To ensure safe operation the three-pin plug must be inserted only into a \
standard three-pin power point
which is effectively earthed through the normal household wiring.
Extension cords used with the equipment must be three-core and be correc\
tly wired to provide connec-
tion to earth. Wrongly wired extension cords are a major cause of fatalities.
The fact that the equipment operates satisfactorily does not imply that \
the  power point is earthed and
that the installation is completely safe.
For your safety, if you have any doubt about the effective earthing of the power point, consult a quali-
fied electrician.
FOR YOUR SAFETY PLEASE READ THE FOLLOWING TEXT CAREFULLY
This appliance is supplied with a moulded three pin mains plug for your \
safety and convenience.
A 3 amp fuse is fitted in this plug.
Should the fuse need to be replaced please ensure that the replacement f\
use has a rating of 3 amps and
that it is approved by ASTA or BSI to BS 1362.
Check for the ASTA mark 
 or the BSI mark  on the body of the fuse.
If the plug contains a removable fuse cover you must ensure that it is r\
efitted when the fuse is replaced.
If you lose the fuse cover the plug must not be used until a replacement\
 cover is obtained.
A replacement fuse cover can be purchased from your local Panasonic Deal\
er.
IF THE FITTED MOULDED PLUG IS UNSUITABLE FOR THE SOCKET OUTLET IN YOUR
HOME THEN THE FUSE SHOULD BE REMOVED AND THE PLUG CUT OFF AND DISPOSED
OF SAFELY.
THERE IS A DANGER OF SEVERE ELECTRICAL SHOCK IF THE CUT OFF PLUG IS INSE\
RTED
INTO ANY 13 AMP SOCKET.
If a new plug is to be fitted please observe the wiring code as shown be\
low.
If in any doubt please consult a qualified electrician.
Warning: THIS APPLIANCE MUST BE EARTHED.
Important
The wires in this mains lead are coloured in accordance with the followi\
ng code:
Green-and-yellow: Earth
Blue: Neutral
Brown: Live
As the colours of the wires in the mains lead of this apparatus may not \
correspond with the coloured
markings identifying the terminals in your plug, proceed as follows:
The wire which is coloured GREEN-and-YELLOW must be connected to the ter\
minal in the plug
which is marked by the letter E or by the safety earth symbol 
 coloured GREEN or GREEN-and-
YELLOW.
The wire which is coloured Blue must be connected to the terminal which \
is marked with the letter N or
coloured BLACK.
The wire which is coloured Brown must be connected to the terminal which\
 is marked with the letter L
or coloured RED.
The mains plug on this equipment must be used to disconnect the mains po\
wer.
Please ensure that a socket outlet is available near the equipment and s\
hall be easily accessible.
How to replace the fuse
Open the fuse compartment with a screw-
driver and replace the fuse.
WarningsThis equipment is not designed for connection to an IT power system.
(An IT system is a system having no direct connections between live par\
ts and Earth; the exposed-conducive-
parts of the electrical installation are earthed.
An IT system is not permitted where the computer is directly connected t\
o public supply systems in the U.K.)
Disconnect the mains plug from the supply socket when  the computer is n\
ot in use.
This equipment is produced to BS800/1983.
For U.K.
WARNING
1 
						

							
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 Publicatio\
n 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 t\
hose specified herein may result inhazardous 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 c\
over of the drive. When the power switch it on, do not place your eyes close to the front p\
anel 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 in\
stalled. 
						

							
3 
						

							
4 
						

							
CONTENTS 
 
 
1 Diagnosis Procedure ··················\
··················\
··················\
··················\
··················\
············1-1  
2 Power-On Self Test  (Boot Check) ·················\
··················\
··················\
··················\
···········2-1 
3 List of E rror Codes  ··················\
··················\
··················\
··················\
··················\
··············· ·3-1 
4 Diagnostic  Test  ··················\
··················\
··················\
··················\
··················\
··················\
· ··4-1 
5 Self Diagno sis Test ··················\
··················\
··················\
··················\
··················\
··············· 5-1 
6 Wiring Connecti on Diagram  ··················\
··················\
··················\
··················\
··················\
·6-1 
7 Disassembly/Reassembly  ··················\
··················\
··················\
··················\
··················\
····7-1 
8 Exploded  View ··················\
··················\
··················\
··················\
··················\
··················\
··· ·8-1 
9 Replacement Pa rts List  ··················\
··················\
··················\
··················\
··················\
········9-1 
 
 
 
  
						

							
1-1
1 Diagnosis Procedure
1.1. Basic Procedure 
						

							
1-2
Please take note of the following two points with regard to troubleshooting: 1. Know-how of diagnosis upon occurrence of heavy troubles, e.g. ‘Set cannot be turned ON’, ‘Set fails to start’, ‘No display o n 
screen’, etc. 
2. Explanation of each trouble, mainly symptom of trouble in operation. 
 
 Flow Chart 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
  
 
 
 
 
 
 
 
 
 
 
NG
NO
YES
NO
YES
NG
NO
YESNG
OK
OK
NO
YES
NG
OK
NG
OK
NO
YES
OK
OK
NG
START START 
Pay attention to the following points when in pursuit of the cause of a troubleshooting. 
1. Peripheral apparatus connected with the set should all be removed before operation check. 
2. Make sure that cables, boards, etc. are not coming off, and recheck the contact condition.   
Set cannot be supplied with current. 
Power lamp fails to light up. AC 
Adaptor/Battery  Output voltageReplace AC Adaptor/Battery
Return set-up utility setpoint to the state of ‘delivery from factory’.
Make sure of contact of K/B connector in use.
Replace keyboard or main board. 
Replace DVD drive. 
Replace main board.
Reinstall HDD. 
Replace main board. 
Power lamp  checkCheck contact condition of power input terminal. Replace ifdefective. 
Check Power SW. Replace if defective. 
Inverter boardReplace inverter board. 
Check inverter cable continuity. Replace if defective 
Replace LCD back light.
BIOS operation  checkReplace main board (Check fuse at power source). 
LCD unit checkReplace LCD unit.
Result of 
POSTRefer to POST 
error code table.Replace main board. 
Main board  checkReplace main board 
HDD access
Check HDD cable connection and continuity. 
Replace if defective. 
Replace HDD & Reinstall. 
Replace main board. 
Set-up utility starting Replace main board. 
Trouble
symptoms on some  of DVD or CDCheck if there are any flaws on DVD or CD
media. Since flaws may appear on specificmedia, DVD or CD media can be defective. 
START END 
Dark display on screen. 
Screen fails to display. 
Failure in starting 
Not displayed properly on screen. 
Some or all keys cannot be input. 
DVD/CD CALL not practicable. 
Starts but operates unstably. 
Heavy trouble e.g., 
‘Set cannot be turned 
ON’, ‘Set fails to start’, 
‘No display on 
screen’, etc. 
Each kind of 
trouble in 
operation. 
*Clean DVD-ROM drive with an applicator. 
LCD back 
light lighting
1.2. Troubleshooting 
						

							
2-1
2 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.
 Start .............Test begins automatically when power switch is set to ON. Normal finish .....After memory checking, a beep sound is issued once and the set is placed i\
nto 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:
  = long sound (about 0.4 sec.),        
= short sound (about 0.2 sec.), Length between sounds is about 0.1 sec\
.
  Table of errors classified by beep sounds
(1 (long sound) -2-3-4)
(Length of bar shows length of sound.)
DiagnosisBeep signal sound Error message
1(long sound)-2 BIOS ROM error BIOS ROM error
RAM error
Keyboard controller error
RAM error
RAM error
RAM error
1-2-2-3
1-3-1-1
1-3-1-3
1-3-4-1
1-3-4-3
1-4-1-1
BIOS ROM error
2-1-2-3
Occurrence of unexpected offering
2-2-3-1
Main board
(Note)  A beep sound is also issued in case of other I/O trouble. 
						

							
3-1 
3. List of Error Codes  
 
The following is a list of the messages that BI OS 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 de vice, such as the way it has been configured. 
Following the list are explanations of the me ssages and remedies for reported problems. 
If your system displays one of except the messa ges marked below with an asterisk (*), write 
down the message and contact Panasonic Techni cal Support. If your system fails after you make 
changes in the Setup menus, reset the computer, en ter 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 fixe d-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 wh ich 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 no t configured properly at offset nnnn. 
0250 System battery is dead - Replace and run SETUP  The CMOS clock battery indica tor 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 ente r your own values. If the error persists, 
check the system  battery or contact Panasonic Technical Support. 
0260 System timer error  The timer test failed. Require s 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 va lues and they are not corrected, the next boot  
will likely fail. On systems with control of  wait states, improper Setup settings can also 
terminate  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.