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Flow Chart of Troubleshooting
9-32
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PAM100 CHECK
pin#17
≥
-
55
dBm?
9-12-5. WCDMA2100 RX
Band : WCDMA2100
CELL POWER : -50dBm
Channel : 10700Ch
NORMAL CONDITION
catch the channel?
CHECK
ANT
contact
U102 CHECK ?
PAM100 CHECK
pin#18
≥
-
55
dBm?
OSC CLOCK
CHECK
U102 pin#17,18
freq:26MHz?
RFS100, C104, L102
re-solder or change
PAM100
re-solder or change
OSC100
re-solder or change
U102
change or re-solder
UCP300
CHECK!!
NO
YES
NO
NO
NO
NO
YES
YES
YES
YES
Rx Path CHECK
U102 pin#42
≥
-
55
dBm?
C218, L204
re-solder or change
YES
NO
DUP201 CHECK
pin#5
≥
-
55
dBm?
DUP201,C215,L203
re-solder or change
NO
YES