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10-2-3. EGSM Transmitter
Check pin #12 of
PAM100 = 2~5dBm
YES
Check and Change
UCD300,C101
CONTINOUS TX ON
CONDITION
TX POWER DAC: 500 CODE
APPLIED
CH : 30
RBW : 100KHz
VBW : 100KHz
SPAN : 10MHz
REF LEV. : 10dBm
ATT. : 20dB
Check and Change
UCD300
YES
Change UCD300
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Continuous RX ON
RF Input : 62CH
AMP : -50dBm
NO
Check pin #8 of
PAM100 = 2.9V
YES
Check pin #7 of
PAM100 = 3.7V
YES
Check pin #6 of
PAM100 = "High"
YES
Check pin #17,4 of
PAM100 = "Low"
YES
Check pin #8 of
PAM100 = 1.2V
YES
Check pin #11 of
PAM100 = -5dBm
YES
Check and Change
PAM100
NO
Check pin #1,2,3,4
of RFT101 = 1.7V
YES
Check and Change
RFT101
Flow Chart of Troubleshooting and Circuit Diagrams
NO
Check and Change
UCD300
NO
Check the battery
block
NO
Check and Change
UCD300
NO
NO
Check and Change
UCD300
NO
Check pin #15 of
RFT101 = 7~11dBm
NO
YES
Check pin #34,35
of RFT101=26Mhz
YES
Check and Change
RFT101
10-23
NO
Check and Change
OSC100
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