Samsung SGH-C400 Service Manual

4 (2)

GSM TELEPHONE

SGH-C400

GSM TELEPHONE

 

 

CONTENTS

 

 

1.

Safety Precautions

 

 

 

 

2.

Specification

 

 

3.

Product Function

 

 

4.

Array course control

 

 

5.

Exploded View/Disassembly

 

 

 

 

and Assembly Instructions

 

 

6.

MAIN Electrical Parts List

 

 

7.

Block Diagrams

 

 

8.

PCB Diagrams

 

 

9.

Flow Chart of Troubleshooting

 

 

10.

Reference data

 

 

 

 

 

This Service Manual is a property of Samsung Electronics Co.,Ltd. Any unauthorized use of Manual can be punished under applicable International and/or domestic law.

Samsung Electronics Co.,Ltd.

2006. 09 Rev.1.0

CONTENTS

1. Safety Precautions

1-1.

Repair Precaution ...........................................................................

1-1

1-2.

ESD(Electrostatically Sensitive Devices) Precaution ...........................

1-2

2. Specification

 

2-1.

GSM General Specification ..............................................................

2-1

2-2.

GSM Tx Power Class ......................................................................

2-2

3.Product Function

4.Array course control

4-1.

Pre-requsite for Downloading...........................................................

4-2

4-2.

S/W Downloader Program................................................................

4-2

5. Exploded View/Disassembly & Assembly Instructions

 

5-1.

Cellular phone Exploded View.........................................................

5-1

5-2.

Cellular phone Parts list.................................................................

5-2

5-3.

Disassembly & Assembly Instructions..............................................

5-4

6.MAIN Electrical Parts List

7.Block Diagrams

8.PCB Diagrams

CONTENTS

9. Flow Chart of Troubleshooting

9-1. Pown on.......................................................................................

9-1

9-2. Initial............................................................................................

9-5

9-3. SIM Part.......................................................................................

9-7

9-4. Charging Part................................................................................

9-9

9-5.

Microphone Part...........................................................................

9-12

9-6.

Speaker Part...............................................................................

9-14

9-7.

Camera Part................................................................................

9-16

9-8.

RF

 

9-8-1. GSM900 Rx..............................................................................

9-20

9-8-2.

DCS Rx....................................................................................

9-22

9-8-3.

PCS Rx....................................................................................

9-24

9-8-4.

GSM900 Tx..............................................................................

9-26

9-8-5.

PCS/DCS Tx.............................................................................

9-28

10. Reference data

1. Safety Precautions

1-1. Repair Precaution

Repair in Shield Box, during detailed tuning. Take specially care of tuning or test,

because specipicty of cellular phone is sensitive for surrounding interference(RF noise).

Be careful to use a kind of magnetic object or tool,

because performance of parts is damaged by the influence of magnetic force.

Surely use a standard screwdriver when you disassemble this product, otherwise screw will be worn away.

Use a thicken twisted wire when you measure level.

A thicken twisted wire has low resistance, therefore error of measurement is few.

Repair after separate Test Pack and Set because for short danger (for example an overcurrent and furious flames of parts etc) when you repair board in condition of connecting Test Pack and tuning on.

Take specially care of soldering, because Land of PCB is small and weak in heat.

Surely tune on/off while using AC power plug, because a repair of battery charger is dangerous when tuning ON/OFF PBA and Connector after disassembling charger.

Don't use as you pleases after change other material than replacement registered on SEC System. Otherwise engineer in charge isn't charged with problem that you don't keep this rules.

1-1

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Safety Precautions

1-2. ESD(Electrostatically Sensitive Devices) Precaution

Several semiconductor may be damaged easily by static electricity. Such parts are called by ESD (Electrostatically Sensitive Devices), for example IC,BGA chip etc. Read Precaution below. You can prevent from ESD damage by static electricity.

Remove static electricity remained your body before you touch semiconductor or parts with semiconductor. There are ways that you touch an earthed place or wear static electricity prevention string on wrist.

Use earthed soldering steel when you connect or disconnect ESD.

Use soldering removing tool to break static electricity. , otherwise ESD will be damaged by static electricity.

Don't unpack until you set up ESD on product. Because most of ESD are packed by box and aluminum plate to have conductive power,they are prevented from static electricity.

You must maintain electric contact between ESD and place due to be set up until ESD is connected completely to the proper place or a circuit board.

1-2

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2. Specification

2-1. GSM General Specification

 

EGSM 900

DCS 1800

PCS 1900

 

Phase 2

Phase 1

Phase 1

 

 

 

 

Freq. Band[MHz]

880~915

1710~1785

1850~1910

Uplink/Downlink

925~960

1805~1880

1930~1960

 

 

 

 

ARFCN range

975~1023

512~885

512~810

1~124

 

 

 

 

 

 

 

Tx/Rx spacing

45MHz

95MHz

80MHz

 

 

 

 

Mod. Bit rate/

270.833kbps

270.833kbps

270.833kbps

Bit Period

3.692us

3.692us

3.692us

 

 

 

 

Time Slot

576.9us

576.9us

576.9us

Period/Frame Period

4.615ms

4.615ms

4.615ms

 

 

 

 

Modulation

0.3GMSK

0.3GMSK

0.3GMSK

 

 

 

 

MS Power

33dBm~5dBm

30dBm~0dBm

30dBm~0dBm

 

 

 

 

Power Class

5pcl ~ 19pcl

0pcl ~ 15pcl

0pcl ~ 15pcl

 

 

 

 

Sensitivity

-102dBm

-100dBm

-100dBm

 

 

 

 

TDMA Mux

8

8

8

 

 

 

 

Cell Radius

35Km

2Km

2Km

 

 

 

 

Operating

 

-20°C ~ +50°C

 

Temperature

 

 

 

 

 

2-1

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Specification

2-2. GSM Tx Power Class

TX Power

EGSM900

control level

 

 

 

5

33±2 dBm

 

 

6

31±2 dBm

 

 

7

29±2 dBm

 

 

8

27±2 dBm

 

 

9

25±2 dBm

 

 

10

23±2 dBm

 

 

11

21±2 dBm

 

 

12

19±2 dBm

 

 

13

17±2 dBm

 

 

14

15±2 dBm

 

 

15

13±2 dBm

 

 

16

11±3 dBm

 

 

17

9±3dBm

 

 

18

7±3 dBm

 

 

19

5±3 dBm

 

 

 

 

TX Power

DCS1800

control level

 

 

 

0

30±3 dBm

 

 

1

28±3 dBm

 

 

2

26±3 dBm

 

 

3

24±3 dBm

 

 

4

22±3 dBm

 

 

5

20±3 dBm

 

 

6

18±3 dBm

 

 

7

16±3 dBm

 

 

8

14±3 dBm

 

 

9

12±4 dBm

 

 

10

10±4 dBm

 

 

11

8±4dBm

 

 

12

6±4 dBm

 

 

13

4±4 dBm

 

 

14

2±5 dBm

 

 

15

0±5 dBm

 

 

TX Power

PCS1900

control level

 

 

 

0

30±3 dBm

 

 

1

28±3 dBm

 

 

2

26±3 dBm

 

 

3

24±3 dBm

 

 

4

22±3 dBm

 

 

5

20±3 dBm

 

 

6

18±3 dBm

 

 

7

16±3 dBm

 

 

8

14±3 dBm

 

 

9

12±4 dBm

 

 

10

10±4 dBm

 

 

11

8±4dBm

 

 

12

6±4 dBm

 

 

13

4±4 dBm

 

 

14

2±5 dBm

 

 

15

0±5 dBm

 

 

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3. Product Function

Main Function

-Tri Band(900/1800/1900)

-FR+EFR+HR

-GPRS Class 10

-16 Poly

-Intenna

-SMS,MMS,WAP1.2

-Phonebook 500ea

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Product Function

3-2

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4. Array course control

Software Downloading

Test Jig (GH80-03304A)

Data cable (GH39-00127A)

 

Serial Cable(CSA LL64151-A)

Power Supply Cable

 

4-1

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Array course control

4-1. Pre-requsite for Downloading

Downloader Program (OptiFlash.exe for SGH-C400 )

SGH-C400 Mobile Phone

Data Cable

Binary file

4-2. S/W Downloader Program

Load the binary download program by executing the OptiFlash.exe

Connect data cable to Mobile phone

1.Options / Settings

1)COM Port

-select COM Port and Transfer Speed (921600) 2) Flash and Verify

-Check the Reserved Memory Regions ( )

3) Generic

-Select Check box

Differences Only (for minor change)

Erase All Unused Regions (for fully renewing)

2. File / Open

- Select the binary file (*.s3)

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Array course control

3. Click "Flash" and write down "yes"

then "OK"

4. Power on the mobile phone

4-3

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Array course control

4-4

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Samsung SGH-C400 Service Manual

5. Exploded View/Disassembly&Assembly Instructions

5-1. Cellular phone Exploded View

QRF03

QVO01

QCW01

QFU01

QME03

QME11 QLC01 QSP01

QMO01

QCA01

QHI01

QFL01

QCR05

QSC01

QMW02

QFR01

QMI03

QKP01

QME01

QMI01

QMP01

QAN05

QCR08

QAN02

QRE01

QIF01

QCR05

QRF01

QBA01

QBA00

5-1

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Exploded View/Disassembly&Assembly Instructions

5-2. Cellular phone Parts list

QAN02

INTENNA-SGHC400

GH42-00965A

 

 

 

QAN05

ASSY MEC-INTENNA CONN RUBBER

GH75-08200A

 

 

 

QBA00

ASSY CASE-BATTERY

GH98-02268A

 

 

 

QBA01

INNER BATTERY PACK-750MAH BLK

GH43-02489A

 

 

 

QCA01

UNIT-CAMERA

GH59-03371A

 

 

 

QCR05

SCREW-MACHINE

6001-001478

 

 

 

QCR05

SCREW-MACHINE

6001-001478

 

 

 

QCR08

SCREW-MACHINE

6001-001456

 

 

 

QCW01

PCT-WINDOW CAMERA

GH72-33398A

 

 

 

QFL01

ASSY CASE-FOLDER LOWER

GH98-01683A

 

 

 

QFR01

ASSY CASE-FRONT

GH98-01684A

 

 

 

QFU01

ASSY CASE-CASE FOLDER UPPER(TI

GH98-01917A

 

 

 

QHI01

ASSY MEC-HINGE(CAN TYPE)

GH75-04662A

 

 

 

QIF01

PMO-COVER IF

GH72-32906A

 

 

 

QKP01

ASSY KEYPAD-(CHE/BLK)

GH98-01686A

 

 

 

QLC01

ELA UNIT-SGHC406 LCD MODULE KI

GH96-02368A

 

 

 

QME01

UNIT-METAL DOME

GH59-03351A

 

 

 

QME03

PCB-SGHC406CON TO CON

GH41-01306A

 

 

 

QMI01

MICROPHONE-ASSY-6.25MM

GH30-00178F

 

 

 

QMI03

RMO-RUBBER MIC

GH73-04805A

 

 

 

QMO01

MOTOR DC-SGHC406

GH31-00270A

 

 

 

QMP01

A/S MATERIAL ASSY-PBA MAIN

GH82-02013A

 

 

 

QMW02

PCT-WINDOW MAIN

GH72-32980A

 

 

 

QRE01

ASSY CASE-REAR

GH98-01685A

 

 

 

QRF01

MPR-TAPE COVER RF

GH74-25341A

 

 

 

QRF03

PMO-COVER EAR JACK

GH72-32907A

 

 

 

QSC01

MPR-TAPE COVER SCREW

GH74-25342A

 

 

 

QSP01

SPEAKER

3001-002012

 

 

 

QVO01

ASSY KEY-VOLUME

GH98-02013A

 

 

 

5-2

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Exploded View/Disassembly&Assembly Instructions

ADAPTOR-SGHE715 TA(JAPAN)

GH44-00643A

 

 

RMO-RUBBER CAMERA CHIP

GH73-07630A

 

 

RMO-RUBBER CODEC CHIP

GH73-07631A

 

 

RMO-RUBBER MAIN CHIP

GH73-07632A

 

 

RMO-RUBBER MEMORY CHIP

GH73-07633A

 

 

MPR-TAPE GASKET DOME SHEET

GH74-25344A

 

 

MPR-TAPE GASKET IF FRONT

GH74-25345A

 

 

MPR-INSU TAPE

GH74-26147A

 

 

LABEL(P)-WATER SOAK

GH68-02026A

 

 

MPR-VINYL BOHO DECO REAR

GH74-26518A

 

 

MPR-BOHO VINYL LCD CONN

GH74-15350A

 

 

MPR-TAPE GASKET LCD

GH74-25372A

 

 

MPR-SPONGE MOTOR

GH74-25381A

 

 

MPR-TAPE LCD FPCB

GH74-26060A

 

 

MPR-INSU TAPE

GH74-19260A

 

 

MPR-TAPE WINDOW MAIN

GH74-25438A

 

 

MPR-F/LOWER BOHO VINYL

GH74-05004A

 

 

MPR-TAPE FRONT FPC

GH74-26057A

 

 

MPR-TAPE LCD TOP

GH74-26059A

 

 

MPR-VINYL BOHO DECO FOLDER UPP

GH74-26517A

 

 

MPR-INSU TAPE, UPPER TOP

GH74-26690A

 

 

MPR-VINYL BOHO MAIN WIN

GH74-26719A

 

 

MPR-VINYL BOHO DECO REAR

GH74-26518A

 

 

MANUAL USERS-LTNENGLISH

GH68-11685A

 

 

MANUAL USERS-LTN SPANISH

GH68-11686A

 

 

BAG PE

6902-000634

 

 

LABEL(R)-MAIN(LTN)

GH68-11763C

 

 

CUSHION-CASE(NEW-1)

GH69-04326A

 

 

LABEL(P)-MIAMI

GH68-12219A

 

 

BOX-UNIT(LTN)

GH69-04480B

 

 

UNIT-EARPHONE ,SIL

GH59-03624A

 

 

5-3

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Exploded View/Disassembly&Assembly Instructions

5-3. Disassembly&Assembly Instructions

― Disassembly

1

1) Unscrew a Rear Cover(There are 4 points)

2

1) Lift up the Rear Cover by unlocking two hooks on the bottom side.

1) Be careful not to make scratch and molding damage! 1) Be careful not to make scratch and molding damage! 2) Should unlock bottom part of the Rear cover first,

and next, mid part etc...

 

3

 

 

 

4

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

1) Release the LCD CON TO CON.

 

 

 

1) with the folder being opened, Separate

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

the PBA.

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

1) Be careful not to make scratch and molding damage! 1) Be careful not to make scratch and molding damage!

5-4

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Exploded View/Disassembly&Assembly Instructions

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

5

 

 

 

 

 

 

 

6

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

1) Disassemble KEY PAD, DUST PROTECT

 

 

 

1) With grabbing Folder using one hand, Pull

 

 

 

 

 

TAPE and SIDE KEY.

 

 

 

back Front Cover using the other hand.

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

1)

Be careful not to make scratch and molding damage!

1)

 

Be careful not to make scratch and molding damage!

2)

Be careful not to damage the LCD CON TO CON!

2)

 

Be careful not to damage the LCD CON TO CON!

 

 

 

(Con to con FBCB is torn very easily)

 

 

 

 

(Con to con FBCB is torn very easily)

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

7

 

 

 

 

 

 

 

8

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

1) Remove the two SCREW CAPS and Unscrew

 

 

 

 

 

1) Unlock the bottom side of the Folder Ass'y

 

 

 

 

the UPPER COVER

 

 

 

 

 

(There are hooks both side - Left and Right)

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

1) Be careful not to make scratch and molding damage! 1) Be careful not to make scratch and molding damage!

5-5

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Exploded View/Disassembly&Assembly Instructions

5

1) Disassemble MOTOR.

6

1) Disassemble SPK.

1)

Be careful not to make scratch and molding damage!

1)

 

Be careful not to make scratch and molding damage!

2)

Be careful not to damage the Motor Wire!

2)

 

Be careful not to damage the SPK Wire!

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

7

 

 

 

 

 

 

 

8

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

1) Disassemble LCD Module.

 

 

 

 

 

 

1) Disassemble Camera

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

1)

Be

careful

not

to

make scratch and molding damage!

1)

Be

careful

not

to

make scratch and molding damage!

2)

Be

careful

not

to

damage the CON TO CON!

2)

Be

careful

not

to

damage the Camera FBCB

 

 

 

 

 

 

 

 

 

 

 

 

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Exploded View/Disassembly&Assembly Instructions

― Assembly

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

1

 

 

1)

Insert

a

CON TO

CON.

 

 

 

 

2

 

 

1)

Align and place a LCD on a FOLDER LOWER.

 

 

 

 

2)

Insert

a

Camera

into

the Connector.

 

 

 

 

 

2)

Insert

a

SPK and

a Motor.

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

3)

Insert

a

Camera.

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Emphasis

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Emphasis

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Insert Spk

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

from lower

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Side

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

1)

Be careful not to make scratch and molding damage!

1) Be careful not to make scratch and molding damage!

2) Insert Spk from lower side.

 

 

 

 

 

 

 

 

 

 

 

3)

Push the camera until it is inserted completely.

 

 

 

 

 

 

 

 

 

 

 

4)

Protect Camera Lense from dust.

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

3

 

 

 

1) Assemble from the upper side of the

 

 

4

 

 

 

1) Screw down and attach the SCREW SHEET

 

 

 

 

 

 

 

FOLDER UPPER.

 

 

 

 

 

 

 

 

Torque : 1.2± 0.1 Kgf/

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

1) Be careful not to make scratch and molding damage! 1) Be careful not to make scratch and molding damage! Make a checking on the TORQUE (1.3 ± 0.1 Kgf·Cm)

5-7

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