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8-3-18. DCS1800 RX
Pin#46,Pin#47
SAMSUNG Proprietary-Contents may change without notice
NORMAL CONDITION
Catch the channel?
YES
Check F100
Pin#3
-55dBm
YES
Check F100 VBAT
Pin#9
2.5V
YES
Check F100 ENABLE
C142,C144,C145
0V
C143
2V
YES
Check U101
-55 dBm
YES
Check TCXO CLOCK
19.2MHz @ C210
YES
Check U101
YES
END
This Document can not be used without Samsung's authorization
NO
NO
RFS100,C112,C116,C103
NO
NO
NO
NO
NO
8-31
Level 3 Repair
Band :DCS1800
CELL POWER : -50dBm
Channel : 698 ! &
check ANT contact
change or re-solder
Change PBA
Change PBA
C129, C132, L108
re-solder or change
OSC100, C210
re-solder or change
U101
re-solder or change
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