Fly FF242 Service Manual
1
Maintenance Manual
SSeerrvviiccee MMaannuuaal
l
2
Maintenance Manual
Contents
1
FF242
1.1
1.2 Basic
1.3 Typical Application..........................................................................................................................4
2 Main board explored
3．Detailed Function
3.1 Download
3.2 Audio Module ..................................................................................................................................7
3.2.1 Micphone
3.2.2 Receiver Circuit ...........................................................................................................................8
3.2.3 Speaker
3.3 FM
3.4 BT Module........................................................................................................................................9
3.5 RF Module .....................................................................................................................................10
3.6 LCM
3.7 CAMERA FPC Module
3.8 KEYAPD
4 Fault
4.1 RF
4.2 BB
Module
FF242
..................................................................................................................................................3
Feature
Module
Module
Maintenance
Part
...........................................................................................................................................14
Part
...........................................................................................................................................14
Features
......................................................................................................................3
..................................................................................................................................3
Module
Circuit
Circuit
overview
Circuit
...........................................................................................................................7
..........................................................................................................................7
............................................................................................................................8
.........................................................................................................5
................................................................................................................7
.......................................................................................................................................9
..................................................................................................................................11
Interface
Interface
........................................................................................................................13
................................................................................................12
...........................................................................................................................14
3
1 FF242 Module Features
1.1 FF242
Figure 1.1: FF242 Module
1.2 Basic Feature
Table 1-1: Feature
Platform SPREADTRUM SC6531DA
Band GSM900/DCS1800
LCM
CAMERA 30w
MCP Module 32M
BT Module Internal
FM RX Module Internal FM IC
Audio PA External CLASS D
SIM Dual SIM
I/O Micro USB 5PIN
Torch NO
Keypad Yes
Maintenance Manual
4
1.3 Typical Application
Maintenance Manual
Figure 1.2: Typical Application with SC6531 Based platform
5
2 Main board explored overview
Maintenance Manual
Figure 2.1: top
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