FLY DS 110, Service Manual, Page: 2 / 24

Contents
1 Overview DS 110....................................................................................................................1
1.1 About DS 110 Phone ........................................................................................................1
1.2 Distribution of the mainboard components .......................................................................2
2 RF ...........................................................................................................................................3
2.1 RF Overview .....................................................................................................................3
2.2 Transmit ............................................................................................................................3
2.3 Receive..............................................................................................................................3
2.4 Common RF Malfunction ................................................................................................4
3 Baseband ................................................................................................................................15
3.1 Baseband Overview ..........................................................................................................15
3.2 Logic .................................................................................................................................15
3.3 Power management ...........................................................................................................15
3.4 Audio Frequency...............................................................................................................16
3.5 Baseband common malfunction ........................................................................................17
4 Reference for maintenance ...................................................................................................21
4.1 No Signal ..........................................................................................................................21
4.2 Phone does not “power on”...............................................................................................21
4.3 LCD trouble ......................................................................................................................21
4.4 Sound trouble ....................................................................................................................21
4.5 Keyboard malfunction.......................................................................................................21
5 Tools.........................................................................................................................................22
5.1 Downloading Operation Manual ...................................................................................22
5.2 Repair tools Operation Manual......................................................................................22
5.3 write SN Operation Manual ...........................................................................................22
5.4 Calibration Operation Manual .......................................................................................22
5.5 Testing Operation Manual .............................................................................................22
5.6 Function testing Operation Manual ...............................................................................22
5.7 Detailed maintenance program .....................................................................................22