Panasonic Cf 52 Service Manual

3. Test Item and Division of trouble
7-4
CPU /
SYSTEM
Place with possibili-ty of breakdownStanardTest itemEnhan-cingContent of standard testContent of enhancing test
CPU /
Main board
CPU is shifted to protected mode, and
Violation of the paging, Operation of
the violation of a privileged instruction,
and DMA, INT,
 TIMER, and the
RT
C operation are confirmed.
All memory space is tested in a special
memory access pattern based on
R.S.T 
. technology.
RAM Memory / 
Mainboard
HDD /
Mainboard /
Cable /...

Test ItemStandard EnhancedC\fntent \ff Standard Test\n C\fntent \ff Extend TestThe place with p\fssibility \n\ffbreakd\fwn
T\fuch Screen It is c\fnfirmed n\ft t\f find
abn\frmality in the USB
c\fnnecti\fn \ff T\fuch Screen.
This test cann\ft find
abn\frmality \ff T\fuch Screen.
\berf\frm T\fuch Screen
functi\fnality practically.
Operat\fr has t\f judge
\bASS/FAIL with test result.\nMain b\fard/
T\fuch Screen
Bluet\f\fth It is c\fnfirmed n\ft t\f find
abn\frmality in the c\fnnecti\fn
\ff Main b\fard and...

8  Wiring Connection Diagram
8-1
CN4300
CN22
CN9000
CN6503
CN27
CN4400
JK3004
JK3003
Microphone
Headphone
SERIAL PCB SW LED MDC PCB
MAIN PCB BT PCB
SD PCB
SD
CN3401
SC RELAY PCB
BIOS PCB TOUCH PAD PCB
PWR BATT  
LED PCB
AUDIO PCB
WWAN PCB
CN23
CN4100CN4101
CN4000
CN4200CN4203
CN4202
SPEAKER (R)
SPEAKER (L)
Connector by Cable
Direct connection by Connectors
Parts on Bottom Side
CN34
CN7002
LITHIUM
BATTERYCN4
CN33DVD DRIVE
CN18
FA N
CN36MODEM
CN4001
SERIAL PORT
CN4201
CN28
EXTERNAL
DISPLAY
CN5
CN35
CN30...

9-1
9 Disassembly/Reassembly
Note:Power off the computer. Do not shut down to the Suspend or hibernation mode.
Do not add peripherals while the computer is in the Su spend or hibernation mode; abnormal operation may result.
9.1. Disassembly Instructions
9.1.1. Disassembly Flowchart
The chart below shows the various parts which should be removed in order to remove the parts that are to be replaced.
Parts can be replaced efficiently be following the disassembly steps in the chart.
9.1.3.1. Battery...

9-2
9.1.2. Preparation
Before disassembling, be sure to make the following prepara-
tions.• Shut down Windows and turn off the power.
• Disconnect the AC adaptor.
• Remove the optional DIMM memory card and PCMCIA card if they are connected.
• Remove other devices if they are connected.
Attention: • Please execute writing BIOS ID when you exchange the
Main Board.
• You cannot reuse the Conductive  Clothes and the heat dissi-
pating parts such as Sheet and Rubber. Use new parts.
9.1.3. Removing the Battery...

9-3
9.1.5. Removing the Tilt Panl Ass’y
1. Turn the Cover down and pull the Tilt Panel in the direc-tion of arrows.
2. Remove the five Screws , and remove the Tilt Panel Ass’y.
Screws  : DRSB2+4FKLT
9.1.6. Removing the DIMM Memory Card
1. Remove the Screw , and remove the DIMM Cover.
2. Open the right and left Hooks of the DIMM Memory Card outward, and remove the DIMM Memory Card.
Screws : DRSB2+3FKLT
9.1.7. Removing the ROBSON Cover, Wireless LAN  Module and BIOS
PCB
1. Remove the Screw , and remove the...

9-4
9.1.7.1. Wireless LAN Module
1. Remove the two Screws  and two Cables(Gray andBlue).
2. Pull out the Wireless LAN Module in the direction of
arrows.
9.1.7.2. BIOS PCB
1. Remove the two Screws , and remove the BIOSPCB.
Screws  : DFHE5122YA
Screws  : DRHM0065ZA
9.1.8. Removing the Display unit
1. Remove the six Screws , and turn over the SW LED MDC PCB.
2. Disconnect the two Cables from the Connectors (CN5 and CN35).
3. Remove the Speaker Holder L and four Cables (black, white, blue and grey).
Remove...

9-5
9.1.9. Removing the LCD unit, InverterAss’y and ANTENNA PWB L,R
1. Remove the two LCD Rubbers and five LCD Sheets.
2. Remove the five Screws  and two Screws .
3. Release the twenty-one Hooks fixing the LCD Front to the
LCD unit, remove the LCD Front.
4. Remove the Screw  and Tape, and remove the LCD unit.
5. Disconnect the two Cables, and remove the Inverter Ass’y.
6. Remove the eleven Tapes and two Screws , and remove the ANTENNA PWB L, R.
Screws  : DFHE5122YA
Screws  : DRHM0093ZA
Screws  :...

9-6
9.1.11. Removing the Modem
1. Disconnect the Cable from the Connecor(CN4200).
2. Remove the two Screws , and remove the Modem.
3. Remove the Tape1, Conductive tape-modem and Tape2,disconnect the Cable from Modem
Screws  : DFHE5122YA
9.1.12. Removing th e SW LED MDC PCB
and Speakers
9.1.12.1. SW LED MDC PCB
1. Disconnect the Cables from the Connectors(CN4202 and CN4203), and remove SW LED MDC PCB.
9.1.12.2. Speaker R
1. Remove the Speaker Holder R, and remove the Speaker
R
9.1.12.3. Speaker L
1....

9-7
9.1.14. Removing the Top Cover
1. Remove the Gasket.
2. Remove the Screws , ,  and ten Screws 
3. Turn the unit to the face, remove the Screw  and five Screws .
4. Remove the WP Sheet and Tape, and remove the Screw .
5. Remove the two Screw Sheets. Remove the two Screws , and remove the Cover
BT.
Remove the Screw  and disconnect the Cable from
the BT UNIT PCB, and remove it.
6. Disconnect the FFC and KBD FPC from the Connec- tors(CN23 and CN22), and lift up the Top Cover Ass’y and
remove it.
Screws...