Samsung SGH-N400 service manual.pdf

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ELECTRONICS
DUAL BAND Mobile
Cellular Phone
SGH-N400
SERVICE
DUAL BAND MOBILE CELLULAR PHONE
Manual
CONTENTS
1. Exploded Views and Parts List
2. PCB Diagrams & Schematic Diagrams
3. Electrical Parts List
4. Block Diagrams
5. Flow Chart of Troubleshooting
1. Exploded Views and Parts List
1-1 Main
1-2 Main Parts List
1-3 Travel Adapter
1-4 Cigar Light Adapter
1-5 Simple Hands Free Kit
1-6 Test Jig
1-7 Earphone
1-8 Data Kit
1-9 Desk Top Charger
2. PCB Diagrams & Schematic Diagrams
2-1-1
2-1-2
2-2-1
2-2-2
2-2-3
Main Top
Main Bottom
Logic Schematic
Power Schematic
RF Schematic
3. Electrical Parts List
3-1 Main Parts
4. Block Diagrams
4-1 Main Base Band
4-2 Main RF
5. Flow Chart of Troubleshooting
5-1 Power ON
5-2 Initial
5-3 Charging Part
5-4 SIM Part
5-5 Microphone Part
5-6 Speaker Part
5-7 Key Data Input
5-8 Alert Tone
5-9 Ring Indicator
5-10 Back Light
5-11 Auto Antenna Troubleshooting
5-12 RF Troubleshooting
5-13 Tx Troubleshooting
5-14 Rx Troubleshooting
SAMSUNG Proprietary-Contents may change without notice
1. Exploded Views and Parts List
1-1 Main
1-2
14
1-3
1-5
1-1
1
1-4
1-6
1-7
13
8
6
5
7
4
12
2
11
15
16
17
10
9
3-4
3-1
22
3
3-2
3-3
21
19
23
20
21
18
SAMSUNG Proprietary-Contents may change without notice
1-1
1-2 Main Parts List
NO
1
PART NAME
FRONT ASS’Y
SEC CODE
GH75-00965A(EU)
GH75-01257A(AMN)
GH75-01256A(ATL)
GH75-01213A(TIM)
GH75-01290A(WIN)
GH75-01255A(XEC)
Q’TY
1
REMARK
SA
1
2
FRONT COVER
FLIP ASS’Y
GH72-02155A
GH75-00967A(EU)
GH75-01254A(AMN)
GH75-01253A(ATL)
GH75-01212A(TIM)
GH75-01289A(WIN)
GH75-01252A(XEC)
1
1
SNA
SA
3
4
5
6
7
2
3
1
2
3
4
NAVI-DUMMY-FRONT
HINGE ASS’Y
LED LENS
WINDOW-LCD
SPONGE WINDOW
MAIN-PBA
REAR ASS’Y
REAR COVER
LOCKER MAIN
SPRING LOCKER
EARJACK RUBBER
GH72-02165A
GH75-00350A
GH72-02161A
GH72-02163A
GH74-01104A
GH92-00940A
GH75-00966A
GH72-02421A
GH72-02422A
GH61-00009A
GH73-00608A
1
1
1
1
1
1
1
1
1
1
1
SNA
SNA
SNA
SNA
SNA
SA
SA
SNA
SNA
SNA
SNA
SAMSUNG Proprietary-Contents may change without notice
1-2
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
SHIELD COVER
KEY-PCB
MIC-RUBBER
NAVIGATION KEY
KEY-MAIN
INTENNA GUIDE
BUZZER RUBBER
COVER CONN.
LCD ASSíY
SPEAKER
VOL-KEY
MOTOR
SCREW
INTENNA-MODULE
MAIN-LABEL
MOBILE CAP
SCREW CAP
SCREW
WHIP ANT
BATT. STD
GH71-00466A
GH59-00172A
GH73-00609A
GH72-02162A
GH73-00603A
GH75-01117A
GH73-00602A
GH73-00758C
GH07-00064A
3001-001231
GH73-00605A
GH31-00028A
6001-000464
GH75-00802A
GH68-02050C
GH73-00606A
GH73-00607A
6001-000883
GH42-00104A
GH43-00309A
1
1
1
1
1
1
1
1
1
1
1
1
2
1
1
1
1
5
1
1
SA
SA
SA
SA
SA
SA
SA
SA
SA
SA
SA
SA
SA
SA
SA
SA
SA
SA
SA
SA
SAMSUNG Proprietary-Contents may change without notice
1-3

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