Panasonic TOUGHBOOK CF-31UFLAX, CF-TOUGHBOOK 31UFLAXxM Service Manual

ORDER NO. CPD1205206CE

Notebook Computer

Model No.

CF-31UFLAXxM

This is the Service Manual for
the following areas.
M …for U.S.A. and Canada

© Panasonic Corporation 2012.
Unauthorized copying and distribution is a violation of law.

For U.K.

2/33

WARNING

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 correctly wired to provide connec­tion 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 quali­fied 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 fuse has a rating of 3 amps and
that it is approved by ASTA or BSI to BS 1362.

Check for the ASTA mark
If the plug contains a removable fuse cover you must ensure that it is refitted 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 Dealer.
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 INSERTED
INTO ANY 13 AMP SOCKET.
If a new plug is to be fitted please observe the wiring code as shown below.
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 following 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 terminal in the plug

which is marked by the letter E or by the safety earth symbol
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.

or the BSI mark on the body of the fuse.

coloured GREEN or GREEN-and-

The mains plug on this equipment must be used to disconnect the mains power.
Please ensure that a socket outlet is available near the equipment and shall be easily accessible.

How to replace the fuse

Open the fuse compartment with a screw­driver and replace the fuse.

Warnings

This equipment is not designed for connection to an IT power system.
(An IT system is a system having no direct connections between live parts and Earth; the exposed-conducive­parts of the electrical installation are earthed.
An IT system is not permitted where the computer is directly connected to public supply systems in the U.K.)

Disconnect the mains plug from the supply socket when the computer is not in use.

This equipment is produced to BS800/1983.

LASER SAFETY INFORMATION

3/33

Class 1 LASER Product

PRODUCT COMPLIES WITH DHHD RULES 21 CFR CHAPTER 1,SUBCHAPTER J.
130KS

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 exposure.

(2) The drive is designed to be incorporated into 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 serve, because

the drive unit is a non-serviceable part.

- Unplug the AC power cord to the equipment before opening the cover of the drive.

- When the power switch is on, do not place your eyes close to the front panel cover to look

into the interior of the unit.

LASER Specification

Class 1 Level LASER Product
Wave Length: DVD: 656 – 665 nm, CD: 777 – 790nm

SAFETY PRECAUTIONS

4/33

1. Before servicing, unplug the power cord to prevent an electric shock.

2. When replacing parts, use only manufacture's recommended components
for safety.

3. Check the condition of the power cord. Replace if wear or damage is evident.

4. After servicing, be sure to restore the lead dress, insulation barriers,
insulation papers, shields, etc.

Important Safety Instructions

When using your telephone equipment, basic safety precautions should always be followed to reduce the risk
of fire, electric shock and injury to persons, including the following:

1. Do not use this product near water, for example, near a bath tub, wash bowl, kitchen sink or laundry tub, in a
wet basement or near a swimming pool.
Avoid using a telephone (other than a cordless type) during an electrical storm.2.

There may be a remote risk of electric shock from lightning.

3. Do not use the telephone to report a gas leak in the vicinity of the leak.
vicinity of the leak.

4. Use only the power cord and batteries indicated in this manual. Do not dispose of batteries in a fire.
They may explode. Check with local codes for possible special disposal instructions.

SAVE THESE INSTRUCTIONS

LITHIUM BATTERY

This computer contains a lithium battery to enable the date, time, and other
data to be stored. The battery should only be exchanged by authorized
service personel.

Warning! A risk of explosion from incorrect installation or misapplication may

possibly occur.

LITHIUM BATTERY

CAUTION

Danger of explosion if battery is incorrectly replaced.
Replace only with the same or equivalent type recommended by the manufacturer.
Discard used batteries according to the manufacturer's instructions.

LITHIUMBATTERIES

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.

PILE AU LITHIUM

ATT ENTION: IL Y A DANGER D'EXPLOSION S' IL Y A REMPLACEMENT INCORRECT DE LA
BATTE RIE. REMPLACER UNIQUEMENT AVEC UNE BATTE RIE DU MÈME TYPE OU D'UN TYPE
RECOMMANDÉ PA R LE CONSTRUCTEUR. METTRE AU RÉBUT LES BATTERIES USAGÉES
CONFORMÉMENT AUX INSTRUCTIONS DU FABRICANT.

Precautions (Battery Pack)

5/33

Precautions (Battery Pack)

Do Not Use With Any Other Product

The battery pack is rechargeable and was intended for the
specified product. If it is used with a product other than the one
for which it was designed, electrolyte leakage, generation of
heat, ignition or rupture may result.

Do Not Charge the Battery Using Methods Other Than
Those Specified

If the battery is not charged using one of the specified methods,
electrolyte leakage, generation of heat, ignition or rupture may
result.

Do Not Throw the Battery Pack Into a Fire or Expose It to
Excessive Heat

Generation of heat, ignition or rupture may result.

Avoid Extreme Heat (Near the Fire, In Direct Sunlight, for
Example)

Electrolyte leakage, generation of heat, ignition or rupture may
result.

Do Not Insert Sharp Objects Into the Battery Pack, Expose
It to Bumps or Shocks, Disassemble, or Modify It

Electrolyte leakage, generation of heat, ignition or rupture may
result.

If this product is subjected to a strong impact, stop using it



immediately.

Do Not Short the Positive (+) and Negative (-) Contacts

Generation of heat, ignition or rupture may result.



Do not place the battery pack together with articles such
as necklaces or hairpins when carrying or storing.

Do Not Use This Product with a Battery Pack Other Than
the One Specified

Use only the specified battery pack (CF-VZSU46AU) with your
product. Use of battery packs other than those manufactured
and supplied by Panasonic may present a safety hazard
(generation of heat, ignition or rupture).

When the battery pack has become degraded, replace it
with a new one

Continued use of a damaged battery pack may result in heat
generation, ignition or battery rupture.

Do not touch the terminals on the battery pack. The battery
pack may no longer function properly if the contacts are dirty
or damaged.
Do not expose the battery pack to water, or allow it to be­come wet.

If the battery pack will not be used for a long period of time
(a month or more), charge or discharge (use) the battery pack
until the remaining battery level becomes 30% to 40% and
store it in a cool, dry place.
This computer prevents overcharging of the battery by re­charging only when the remaining power is less than approx.
95% of capacity.
The battery pack is not charged when the computer is first
purchased.
Be sure to charge it before using it for the first time.
When the AC adaptor is connected to the computer, charging
begins automatically.
Should the battery leak and the fluid get into your eyes, do not
rub your eyes. Immediately flush your eyes with clear water
and see a doctor for medical treatment as soon as possible.

CAUTION:

Risk of Explosion if Battery is replaced by an Incorrect Type.
Dispose of Used Batteries According to the Instructions.

ATTENTION:

Il y a risque d’explosion si la batterie est remplacée par une
batterie de type incorrect.
Mettre au rebut les batteries usagées conformément aux
instructions.

NOTE

The battery pack may become warm during recharging or
normal use. This is completely normal.
Recharging will not commence if internal temperature of the
battery pack is outside of the allowable temperature range
(0 °C to 50 °C {32 °F to 122 °F}).

(

Reference Manual “Battery Power”) Once the allow-

able range requirement is satisfied, charging begins auto
matically. Note that the recharging time varies based on the
usage conditions. (Recharging takes longer than usual when
the temperature is 10 °C {50 °F} or below.)
If the temperature is low, the operating time is shortened.
Only use the computer within the allowable temperature
range.
This computer has a high temperature mode function that
prevents the degradation of the battery in high temperature

environments. (
level corresponding to a 100% charge for high temperature

mode is approximately equivalent to an 80% charge level for
normal temperature mode.
The battery pack is a consumable item. If the amount of
time the computer can be run by using a particular battery
pack becomes dramatically shorter and repeated recharging
does not restore its performance, the battery pack should be
replaced with a new one.
When transporting a spare battery inside a package, brief­case, etc., it is recommended that it be placed in a plastic
bag so that its contacts are protected.
Always power off the computer when it is not in use. Leaving
the computer on when the AC adaptor is not connected will
exhaust the remaining battery capacity.

Reference Manual “Battery Power”) A

A lithium ion battery that is recyclable powers the product you have purchased.
Please call 1-800-8-BATTERY for information on how to recycle this battery.

L’appareil que vous vous êtes procuré est alimenté par une batterie au lithium-ion.
Pour des renseignements sur le recyclage de la batterie, veuillez composer le
1-800-8-BATTERY.

Precautions (AC Adaptor)

6/33

FOR USE WITH MODEL NO.
POUR UTILISER AVEC MODELE

Use Only the Specified AC Adaptor With This Product

Using an AC adaptor other than the one supplied (attached
to your product or supplied by Panasonic) may result in a
fire.

Model No:

CF-AA5713A

CF-AA5713A

CF-AA5713A

Disassembling Flow Chart

7/33

1

4

11

Preparation

Keyboard

Main Chassis,
Wireless
LAN Module

HDD Unit,

2

MP Unit

DIMM Cover,
DIMM, Bottom

5

Case Ass'y

MP Chassis,
FPC(MP),

12

HDD Cable Cover

3

EXT ANT PCB,

6

WWAN RFSW PCB

7

8

HDD

USB PCB

LCD Block

FPC(HDD/Battery)

13

Ass'y

Touch Pad,
Pad SW PCB,

14

FPC(LED)

PCMCIA Connecter,

15

SD WOFF PCB Unit

Main PCB,

17

Express Connecter

16

Fan Ass'y, Heatsink,
Antenna PCB

18

(WLAN Sub)

IO PCB

Antenna PCB
(WWAN Main/

9

WLAN Main,
WWAN Sub)

TS Unit PCB,

10

LCD Sub Ass'y

Handle Ass'y,
Power SW Ass'y,

19

Speaker Ass'y

Exploded View

8/33

N15

D

K65

N15

D

K53

D

N14

E50

K67

O

K106

K55

D

N14

K21

K51

D

N14

K98

K127

K117
K118

N14

I

N14

K108

K41

K102

E24

I

N14

I

N14

D

N14

K1

I

K102

N14

D

N14

D

K105
K30

K28

K29

K106

K24

D

K23

K200

N14

J

K99

N37

K1-1

K1-6

K1-12

N14

D

N15

I

K104

Top Case Ass'y(K50)

K115

N14

D

N14

D

K115

D

D

N15

N15

D

K32-2

K32-4

K32-3

K32-5

K32

K121

D

K33

N14

D

D

K115

K116

D

N14

N14

D

N14

D
D

K115

N15

N15
N14

D

N14

K1-2

E23

K1-7

K1-5

K31

K26

N14

D

N14

D

N14

D

N14

D

K1-4

K1-9

K1-3

K1-10

Screw tightening torque

0.45 ± 0.05 N

D

(4.5 ± 0.5 kgf

0.30 ± 0.03 N

J

(3.0 ± 0.3 kgf

0.40 ± 0.05 N

I

(4.0 ± 0.5 kgf

.

m

.

cm)

.

m

.

cm)

.

m

.

cm)

CF-31UFLAXxM

D

9/33

K50-13

D

K50-13

K50-43

K50-41

K50-35

D

N31

D

K50-13

D

K50-13

D

D

K50-53

K50-13

D

K50-19

K50-19

K50-55

K50-56

K50-14

D

K50-14

D

K50-14

D

K50

N31

D

N31

D

K196

K50-59

W

D

K50-8

N31

D

D

K50-13

K50-30

G

K50-6

K50-14

K50-14

D

K410

E31

K408

K409

K50-18
K50-19

D

K50-17

K50-26

C

K411

E58

E44

K50-32
K50-33

K50-7

K414

T

K50-58

V

K50-57

D

K50-13

K50-12

K50-5

K50-31

W

H

K416

K415

K413

N15

D

K50-27

K50-16

D

K50-15

E

K404

K406

E

K50-12

K402

K50-21

U

T

E42

G

K50-29

K50-26

K50-30

K50-25

A

K404

K50-18

K50-19

D

K50-17

D

K401

X

E5

D

K50-13

K405

K412

C

Top Case

K403

K50-11

K50-15

K50-16

D

K50-10

K50-54

C

D

K50-13

K418

E41

D

K50-13

K50-13

D

K50-22

K78

K50-28

K50-20

K50-28

G

D

K50-24

N31

G

K50-60

D

K412

K50-23

K50-24

G

K50-28

K50-28

Y

N31

D

E29

E28

K185

Screw tightening torque

0.10 ± 0.01 N

A

(1.0 ± 0.1 kgf

0.20 ± 0.02 N

C

(2.0 ± 0.2 kgf

0.45 ± 0.05 N

D

(4.5 ± 0.5 kgf

.

.

cm)

.

.

cm)

.

.

cm)

m

E

m

G

m

H

Z

0.49 ± 0.05 N
(4.9 ± 0.5 kgf

1.50 ± 0.15 N
(15 ± 1.5 kgf

0.30 ± 0.5 N.m
(3.0 ± 0.5 kgf

CF-31UFLAXxM

.

.

cm)

.

.

cm)
.

cm)

m

m

K57

10/33

K52

K172

K172

N19

K173

K47

D

K73

K71

N19

D

K45

K46

N7

B

K135

D

K176

K175

D

N10

N19

D

E13

N19

K44

M

Screw tightening torque

0.19 ± 0.02 N

B

(2.0 ± 0.2 kgf

0.45 ± 0.05 N

D

(4.5 ± 0.5 kgf

0.40 ± 0.05 N

I

(4.0 ± 0.5 kgf

.

m

.

cm)

.

m

.

cm)

.

m

.

cm)

K

L

K174

K186

K173

K171

E8

U

B

N7

0.35 ± 0.05 N
(3.5 ± 0.5 kgf

0.25 ± 0.05 N
(2.5 ± 0.5 kgf

K187

K188

D

K42

N4

B

B

N7

.

.

K196

N31

K185

E9

D

.

m

cm)

.

m

cm)

X

N15

K189

K40

K181

K128

K36

D

K196

N15

D

E1

V

K191

N15

B
B

B
B

N41

D

N39

N36
K79
N36

N7

M

K185

K38

K202

E21

K186

E19

E16

E25

N14

I

B
B

E4

D
D

K192

K185

E7

K187

L

K96

D

N39

K94
K95

N15
N10

N38

K177

E20

N7
N41

Y

E47

J

O

N41

K112

B

E27

K54

I

K196

K82

Z

N14
K190

K68

N40

B

Top Case Ass'y(K50)

K59

E6

H

R

B

N14N15

D

L

K178

K56

N14

N7

DD

B

N15

K200

K

N15

K185

I

N14

P

J

S

K

N33

B

K201

E2

E17

K91

E704

B

N33

K

I

E46

K64

I

K92

N15

K196

E30

K180

R

Q

E702

B

D

E45

N34

D

N15

I

N15

H

I

N14

K199

K87

K109

N14

E701

I

N14

I

I

K114

N34

E3

I

N14

I

N15

CF-31UFLAXxM