Samsung B2700 Service Manual page 58

10-2-5. WCDMA2100 RX
NORMAL CONDITION
catch the channel?
YES
F100 CHECK
pin#20 ≥ -65dBm ?
YES
F100 CHECK
pin#18 ≥ -65dBm ?
YES
DUP200 CHECK?
YES
U201 Check?
YES
TCXO CLOCK CHECK?
26MHz @ C111
YES
UCP300 CHECK!!
SAMSUNG Proprietary-Contents may change without notice
This Document can not be used without Samsung's authorization
NO
CHECK
ANT contact ?
NO
F100, RFS100
re-solder or change
NO
F100
re-solder or change
NO
DUP200
re-solder or change
NO
U201
change or re-solder
NO
OSC401, C111
re-solder or change
10-21
Flow Chart of Troubleshooting
Band : WCDMA
CELL POWER : -50dBm
DL Channel : 10700Ch
UL Channel : 9750 Ch