LG U310 Service Manual page 69

3. TECHNICAL BRIEF
2-2. Main Bottom Side(continued)
CN500
S500
U503
U502
U300
FL1001
Q1000
U1005
Q402
Reference
CN500
S500
U503 TVS diode for micro SD card
U502
U300
FL1001
Q1000 WCDMA PAM PA_ON Switch
U1005
U1003
Description
Camera connector
Micro SD card socket
Camera 1.8V LDO
TVS diode for USIM card
WCDMA TX Filter
RFR6250
HDET
FL604, FL602, FL600
Reference
FL604
FL602
FL600
U506
U301
U400
FL1000
SW1000
Q402 External charger Supply switching
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U506
U301
VOLUME UP KEY
VOLUME DOWN KEY
CAMERA KEY
U400
FL1000
SW1000
Description
EMI Filter
EMI Filter
EMI Filter
Hook Sense Comparator
Memory
PMIC6650-2M
FEM
Mobile S/W