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Flow Chart of Troubleshooting
9-2-5. DCS/PCS Tx
Check U100
pin 16 : about
2~3 dbm?
Yes
1
Check and
change
RFS601,
R102,L103
U100 pin 7 :
3.7V ?
U100 pin 8 :
1.2V ?
U100 pin 12
about -5dbm?
U100 pin 6 :
3V ?
U100
change or resolder
Check U101
No
pin 6 : 2.8V ?
Yes
No
U100 pin 1 :
about 4~5dbm?
Yes
U100
check & change
No
Yes
No
Yes
No
:
Yes
No
UCP300
Yes
No
Check and
change
UCP201,UCP300
2
3
4
Battery,
UCP300
check & change
5
U100
check
6
check
U100 pin 12,13,
28,29 : 2.9V ?
Yes
U101
change or resolder
9-18
CONTINUS TX ON CONDITION
TX POWER DAC : 560 CODE
APPLIED
CH : 698CH(DCS),
660CH(PCS)
RBW : 100KHz
VBW : 100KHz
SPAN : 10MHz
REF LEV : 10dBm
ATT : 20dB
5
3
2
4
6
8
No
UCP300
change or resolder
7
1
7
8
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