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TU550
Service manual
Only For Training And Service Purposes - LG TU550 Service Manual
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Contents
Table of Contents
Troubleshooting
Bookmarks
Table of Contents
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4. TROUBLE SHOOTING
SIGNAL PATH_GSM RF
LGE Internal Use Only
Copyright © 2007 LG Electronics. Inc. All right reserved.
- 72 -
Common TX/RX
DCS RX
PCS RX
GSM850 RX
GSM900 RX
DCS/PCS TX
GSM850/GSM900 TX
TX I/Q
TX_MOD_CP
Only for training and service purposes
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Table of Contents
Troubleshooting
TROUBLE SHOOTING
68
Power ON Troubleshooting
92
Charger Troubleshooting
94
USB Troubleshooting
97
SIM Detect Troubleshooting
99
Camera Troubleshooting
100
Keypad Backlight Troubleshooting
101
Folder ON/OFF Troubleshooting
102
Main LCD Troubleshooting
103
Troubleshooting Download Errors
128
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