LG T5100 Service Manual page 4

4.3.3 Checking RF Chipset Control
Signals ......................................... 80
4.3.4 Checking Tx IQ signals ................ 81
4.3.5 Check PAM circuits ...................... 82
4.3.6 Checking Mobile S/W & FEM
circuits .......................................... 83
5. DISASSEMBLY INSTRUCTION .... 84
5.1 Disassembly .......................................... 84
6. Download ...................................... 99
6.1 Download Setup .................................... 99
6.1.1 In case of using the Data kit ......... 99
6.1.2 In case of using the PIF ............... 99
6.2 Download Procedure ........................... 100
6.3 T5100 Multimedia Chip Download ...... 107
7. Service and Calibration .............. 113
7.1 Service S/W ........................................ 113
7.1.1 Overview .................................... 113
7.1.2 Hardware and Software
Environment ............................... 113
7.1.3 Software Installation ................... 113
7.1.4 Common Properties of Service
Software ..................................... 113
7.2 Calibration ........................................... 116
7.2.1 Overview .................................... 116
7.2.2 Equipment List ........................... 116
7.2.3 Equipment Setup ....................... 117
7.2.4 Calibration steps ........................ 117
7.2.5 Test JIG Operation ..................... 120
8. CIRCUIT DIAGRAM ..................... 121
8.1 RF Interface ........................................ 122
8.2 Baseband Interface ............................. 123
8.3 LCD Connector, Camera Connector,
Keypad Connector .............................. 124
8.4 DSP ..................................................... 125
8.5 Memory Interface, USB interface ........ 126
8.6 MIDI, Audio ......................................... 127
8.7 I/O Receptacle, USB Interface, IrDA
Interface .............................................. 128
8.8 Keypad ................................................ 128
9. PCB LAYOUT
9.1 Main Top ............................................. 129
9.2 Main Bottom ........................................ 130
9.3 Keypad Top ......................................... 131
9.4 Keypad Bottom .................................... 132
10. ENGINEERING MODE
11. STANDALONE TEST
11.1 Setting Method ................................ 135
11.1.1 COM Port ............................. 135
11.1.2 Tx Test ................................. 135
11.1.3 Rx Test ................................. 135
12. EXPLODED VIEW &
REPLACEMENT PART LIST
12.0 EXPLODED VIEW .......................... 136
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