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SAMSUNG Proprietary-Contents may change without notice
Flow Chart of Troubleshooting
10-
15
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U601 CHECK
pin#12
≥
-65dBm
10-2-3. PCS RX
CONTINUOUS RX ON
RF INPUT : 660CH
AMP : -50dBm
NORMAL CONDITION
catch the channel
NO
Check soldered status of
L611, C633, Ant.
YES
RFS601, L604, L603, C604
resolder or change
NO
YES
NO
U601
resolder or change
U601 CHECK
pin#20
≥
-65dBm
YES
U602 CHECK
pin#17,#18
≥
-65dBm
C616, C618, L609, F603
resolder or change
NO
YES
Check the VRF_2.9
of the UCD102
NO
U602
pin #12, #13 = 2.9V
YES
OSC601 CHECK
pin #1 : 26MHz &
Vp-p : 900mV
NO
OSC601
change or resolder
YES
U602
pin#1,#2,#3,#28 Vp-
p = 100mV
NO
U602
resolder or change
YES
UCD102 CHECK!!
1
2
3
4
5
6
7