Table of Contents
Advertisement
9-2-4. EGSM TX
NO
U100 Pin#6
About 2~3 dBm?
YES
U100, C102
Check & Change
C122
= 3.7V?
YES
Level of PAM101
Pin #6 is
1.2V?
YES
YES
PAM101 pin#12
About -5 dBm?
NO
PAM101 pin#7
High ?
YES
Change PAM101
C103 ≥ 2.8V ?
UCP100 Check
Pin #21 : 13MHz ?
Vpp : 1.1V?
NO
UCP100 Pin
#34, = 2.8V?
Change PAM101
Check U300
SAMSUNG Proprietary-Contents may change without notice
This Document can not be used without Samsung's authorization
U100
Pin#4 = High?
YES
Level of
NO
U100 Pin#3 is
4~5dBm ?
YES
U100
Check & Change
NO
Check the
Battery Block
NO
Check
U300 TXP OK ?
YES
NO
Check U300
NO
YES
NO
R119 = 13MHz ?
Vpp : 1.2V?
YES
YES
NO
U300
Check & Change
Continuous TX ON condition
TX Power Code : 500 code Applied
NO
Check & Change
C103,105,106,U300
Check or resolder
NO
YES
C127, C128
resolder
9-25
Flow Chart of Troubleshooting
CH : 62
RBW : 100KHz
VBW : 100KHz
SPAN : 10MHz
REF. Level : 10dBm
ATT. : 20dB
U300
NO
R117 = 1.5V ?
YES
TCX101
Change or resolder
Advertisement
Table of Contents
