![background image](http://html.mh-extra.com/html/samsung/sch-a399/sch-a399_service-manual_1189801003.webp)
1. Exploded Views and Parts List
1-1
Main
1-2
Main Parts List
1-3
Travel Adapter
1-4
Travel Adapter Parts List
1-5
Battery Charger
1-6
Test Jig
1-6-1
Test Jig
1-7 normal EAR Microphone
1-8
Data Kit
2. PCB Diagrams
2-1
Main Top
2-2
Main Bottom
3. Electrical Parts List
3-1
Main Parts List Top
3-2
Main Parts List Bottom
4. Block Diagrams
5. Trouble shooting
5-1 LOGIC Section
5-1-1
No Power
5-1-2
Abnormal initial operation (2.8V Voltage source)
5-1-3
Abnormal Backlight Operation
5-1-4
Abnormal Key Data Input
5-1-5
Abnormal Key tone
5-2
Receiver Section
5-3
Transmitter Section
6. Circuit Diagrams
6-1
Rx Circuit Diagram
6-2
Tx Circuit Diagram
6-3
Misc Circuit Diagram
6-2
Logic Circuit Diagram