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10-2-2. DCS RX
Continuous RX ON
RF Input : 62 CH
AMP : -50dBm
NORMAL CONDITION
Catch the channel ?
YES
F100 Check
Pin #6 ≥ -65dBm ?
YES
F100 Check
Pin #10, 11 ≥ -65dBm ?
YES
UCD100 Check
Pin#8, 9 ≥ -65dBm ?
YES
UCD100 Check
Pin #27 =1.8V ?
YES
UCD100 Check
Pin #34 =Clean 2.8V?
YES
UCD100 Check
Pin#35,36,37,38=100mV?
YES
Check U102
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NO
NO
NO
NO
NO
NO
NO
UCD100 Check
Pin #21 : 13MHz ?
Vpp : 1.1V?
YES
UCD100
Change or resolder
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Check soldered status of
R700, C703, C701, L703
RFS701, C700
Resolder or Change
F100 Resolder or Change
Check soldered status of
L706, L707, C714
CHECK U102
C706, U102
Check or resolder
OSC700 Check
NO
Pn#1 : Freq =13MHz,
Vpp=1.2V?
YES
UCD100
Check & resolder
10-29
Flow Chart of Troubleshooting
NO
OSC700
Check & resolder
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