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U830 KU830
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LG U830 KU830 Service Manual page 52
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Contents
Table of Contents
Troubleshooting
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Table of Contents
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3. TECHNICAL BRIEF
CAMERA_SIDE_KEY
KEY_ROW(0)
KEY_COL(5)
VOLUME_SIDE_KEY
KB2
KB3
KEY_ROW(2)
KEY_ROW(1)
KEY_COL(5)
Figure. Keypad Circuit (Side KEY)
- 53 -
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Table of Contents
Troubleshooting
TROUBLE SHOOTING
74
Power ON Troubleshooting
99
Charger Troubleshooting
103
USB Troubleshooting
106
SIM Detect Troubleshooting
108
Key Sense Troubleshooting
109
Camera Troubleshooting (2M Camera)
110
Keypad Backlight Troubleshooting
112
Folder ON/OFF Troubleshooting
113
Main LCD Troubleshooting
114
Audio Trouble Shooting
117
Audio Trouble Shooting
118
Troubleshooting Download Errors
141
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