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Flow Chart of Troubleshooting
10-16
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10-2-4. DCS TX
CONTINUOUS TX ON CONDITION
CH : 698CH(DCS)
TX POWER CODE: 520 CODE Aplied
RBW : 100KHz
VBW : 100KHz
SPAN : 10MHz
REF LEV. : 10dBm
ATT. : 20dB
PAM100
pin
111
:
about 2~3 dBm?
RFS100,C130,
L101,C100,R100
check&change
PAM100
pin4 : 2.8 V?
UCD300
check & change
PAM100
pin30 : 3.7 V?
NO
NO
YES
YES
NO
PAM100
pin 3 : 1.2V ?
YES
NO
PAM100 pin17
about : -5dBm ?
YES
PAM100
pin 4 : 2.8V?
YES
YES
PAM100
change or resolder
NO
UCP200
check
R100
Check
NO
RFT100
pin17 : 2.9V ?
UCD300
pinF3
,C311,C312
change or resolder
YES
RFT100
pin19,20 : 26MHz
?
Vp-p : 380mV?
RFT100
pin2,3,22,23
:100mV?
YES
UCD300
change or resolder
NO
NO
YES
NO
OSC100
change or resolder
RFT100
change or resolder
BATTERY ,UCD300
check & change