Samsung SGH-A400 Service Manual
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SAMSUNG Proprietary-Contents may change without notice
1-1
1. Exploded Views and Parts List
1-1 SGH-A400 GSM Telephone Exploded View
1-2 SGH-A400 GSM Telephone Parts List
1-3 SGH-A400 Travel Adapter
1-4 SGH-A400 Travel Adapter Parts List
1-5 SGH-A400 Cigarette Lighter Adaptor
1-6 SGH-A400 Cigarette Lighter Adapter Parts List
1-7 SGH-A400 Test Jig
1-7-1 SGH-A400 Test Jig Cable
1-7-2 SGH-A400 RF Jig Cable
1-7-3 SGH-A400 Test Jig
2. Electrical Parts List
3. Block Diagrams
3-1 Main Block Diagram
3-2 Main R
F
3-2-1 RF Tx Part
3-2-2 RF Rx Part
4. PCB Diagrams
4-1 Main Top
4-2 Main Bottom
5. Flow chart of trouble shooting
5-1 Power ON
5-2 Initial
5-3 Sim Part
5-4 Charging Part
5-5 Microphone Part
5-6 Speaker Part
5-7 Key Data Input
5-8 Ring Indicator
5-9 Back Light
5-10 Alert Tone
5-11 GSM Receiver
5-12 GSM Transmit
5-13 DCS Receiver
5-14 DCS Transmit