LG L1150 Service Manual page 5

4. TROUBLE SHOOTING .................. 50
4.1. Baseband Components
(Component Side)................................ 50
4.2. Baseband Components
(Keypad Side) ...................................... 51
4.3. Power On Trouble................................ 52
4.4. Charging Trouble ................................. 53
4.5. LCD Display Trouble............................ 55
4.6. Speaker/Receiver Trouble ................... 57
A. Receiver Trouble ............................. 59
B. Speaker Trouble.............................. 60
4.7. Microphone Trouble ............................. 61
4.8. Vibrator Trouble ................................... 63
4.9. Keypad Backlight Trouble .................... 65
4.10. Folder ON/OFF Trouble ..................... 67
4.11. SIM Detect Trouble ............................ 69
4.12. CAMERA Trouble .............................. 71
4.13. Earphone Trouble .............................. 75
4.14. Infrared Data Association Trouble ..... 79
4.15. The Block Diagram of the RF Part ..... 81
4.16. Tx / Rx Part Description ..................... 83
4.17. Receiver Part Description .................. 85
4.18. Transmitter Part Description .............. 89
4.19. RX Part Trouble Shooting .................. 92
4.20. TX Part Trouble Shooting .................. 97
5. DISASSEMBLY INSTRUCTION... 101
6. DOWNLOAD AND
CALIBRATION ............................. 106
7. BLOCK DIAGRAM ....................... 112
8. CIRCUIT DIAGRAM ..................... 113
9. PCB LAYOUT ............................... 121
10. STAND ALONE TEST &
CALIBRATION ........................... 123
A. What is Standalone Test? ............. 123
B. Standalone Test
Equipment Setup........................... 123
C. Rx Standalone Test....................... 124
D. Tx Standalone Test ....................... 124
E. What is Calibration? ...................... 125
F. Calibration program ....................... 126
G. Calibration Equipment Setup ........ 127
H. Calibrate L1150 with ChiWoo........ 128
I. Setup and Test with LAPUTA ......... 129
11. EXPLODED VIEW &
REPLACEMENT PART LIST ..... 133
11.1 EXPLODED VIEW ............................ 133
11.2 Replacement Parts
<Mechanic component>.................... 135
<Main component> ........................... 138
11.3 Accessory ......................................... 150
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