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Flow Chart of Troubleshooting
10-16
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PAM100
CHECK
pin11
≥
-65dBm ?
10-2.RF
10-2-1. EGSM RX
CONTINUOUS RX ON
RF INPUT : 62CH
AMP : -50dBm
NORMAL CONDITION
catch the channel?
CHECK
ANT
contact ?
RFT100
pin 17 : 2.9V ?
PAM100 CHECK
pin7
≥
-65dBm ?
RFT100
CHECK
pin29,30
≥
-65dBm ?
PAM100,RFS100
resolder or change
PAM100
resolder or change
C108,C110,L106
resolder or change
UCD300 pinF3,
C316,C317
change or resolder
RFT100 CHECK
pin 19,20
freq :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
NO
YES
YES
YES
YES
YES
YES
F101 CHECK
pin3,4
≥
-65dBm ?
F101
resolder or change
YES
NO