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Flow Chart of Troubleshooting
10-18
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PAM100
CHECK
pin11
≥
-65dBm ?
10-2-2. DCS RX
CONTINUOUS RX ON
RF INPUT : 698CH
AMP : -50dBm
YES
NORMAL CONDITION
catch the channel?
CHECK
ANT
contact ?
RFT100
pin 17 : 2.8V ?
PAM100 CHECK
pin6
≥
-65dBm ?
RFT100
CHECK
pin27,28
≥
-65dBm ?
PAM100,RFS100
resolder or change
PAM100
resolder or change
C105,C107,L105
resolder or change
UCD300 pinF3, C317,C318
change or resolder
RFT100 CHECK
pin 19,20 :
26MHz ?
Vp-p : 380mV?
OSC100
change or resolder
RFT100
resolder or change
UCD300
CHECK!!
RFT100 pin
2,3,22,23 Vp-p
: 120mV ?
NO
YES
NO
NO
NO
NO
NO
YES
YES
YES
YES
YES
F102 CHECK
pin3,4
≥
-65dBm ?
F102
resolder or change
YES
NO