LG LG-500 User Manual

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5.2.10 Rx Sensitivity Trouble(E GSM)
START
(40CH, Sector Power-60dBm)
Rework on Calibration
(over G_MAGIC 200)
Check SW300 and
circumference Circuit
Check BPF401 and
circumference Circuit
Check U402 and
circumference Circuit
Check BPF402 and
circumference Circuit
Check U401 and
circumference Circuit
Check BPF404 and
circumference Circuit
Check BPF404 and
circumference Circuit
Check U401 and
circumference Circuit
SW300
pin9 RF signal is over
-63dBm
BPF401
pin5 RF signal is over
-65dBm
U402 pin27
RF signal is over
-50dBm
BPF 402
pin4,6 RF signal is over
-55dBm
U402 pin20
LO signal is over
-10dBm
BPF404
pin5.6 IF is signal over
-40dBm
BPF404
pin1,2 IF signal is over
-46dBm
U402 pin37
IF signal is over
-10dBm
YES
NO
NO
NO
NO
NO
NO
NO
NO
YES
YES
YES
YES
YES
YES
YES
YES
NOTE : SW300 : Antenna Switch
BPF400 : RF SAW Filter
U402 : TRF 6053
U401 : PLL
BPF403 : RF SAW Filter
BPF404 : IF SAM Filter
★ Must use high frequency
probe.

LG LG-500 Specifications

General

Brand	LG
Model	LG-500
Category	Cell Phone
Language	English