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SAMSUNG Proprietary-Contents may change without notice
Flow Chart of Troubleshooting
9-
25
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9-2-4. EGSM TX
Continuous TX ON condition
TX Power Code : 500 code Applied
CH : 62
RBW : 100KHz
VBW : 100KHz
SPAN : 10MHz
REF. Level : 10dBm
ATT. : 20dB
C122
= 3.7V?
Change PAM101
NO
YES
U100 Pin#6
About 2~3 dBm?
U100
Pin#4 = High?
U300
Check & Change
NO
U100, C102
Check & Change
YES
U100
Check & Change
YES
Check the
Battery Block
Level of PAM101
Pin #6 is
1.2V?
Check
U300 TXP OK ?
U300
Check & Change
YES
YES
NO
NO
NO
NO
PAM101 pin#12
About -5 dBm?
PAM101 pin#7
High ?
Check U300
YES
NO
YES
C103
≥
2.8V ?
UCP100 Check
Pin #21 : 13MHz ?
Vpp : 1.1V?
R119 = 13MHz ?
Vpp : 1.2V?
R117 = 1.5V ?
NO
YES
NO
NO
NO
C127, C128
resolder
TCX101
Change or resolder
YES
YES
YES
NO
C103,105,106,U300
Check or resolder
UCP100 Pin
#34, = 2.8V?
YES
Change PAM101
Check U300
NO
YES
Level of
U100 Pin#3 is
4~5dBm ?