User Guide

SAMSUNG Proprietary-Contents may change without notice
SGH-E610 Flow Chart of Troubleshooting and Circuit Diagrams
2-19
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4. GSM Transmitter
F100 pin 13
about
2~3dBm?
F100
pin 11 : 2.8V
U102 pin6
3~4dBm?
U301
check &
change
U102
check & change
CN101, L105,
C138
check & change
U102
pin 42,43 :
3.7V
BATTERY,
U301
check &
change
U102
pin 40 :
'LOW'
U102
pin 41 :
'HIGH'
U102
pin 45 :
1.2V V ?
U102 pin 48
:-5dBm?
U102
change & r e s o l d e r
U301
check & change
U101
pin9,32
2.8V
U101
pin8 13MHz
Vp-p
:950mV
U101 change or
resolder
U101
pin4,5,6,7
1.7V
U102
check &
change
U301
change
CHECK
U301 pin A13, C311
change or resolder
OSC101
pin 3 : 13MHz
Vp-p : 950mV
OSC101
pin 4 : 2.8V ?
U101
change or
resolder
U301 pin A13 ,R101
change or resolder
OSC101
change or
resolde r
NO
NO
NO
NO
NO
NO
NO
NO
NO
NO
NO
NO
NO
YES
YES
YES
YES
YES
YES
YES
YES
YES
YES
YES
YES
YES
CONTINUS TX ON
CONDITION
MS TX level 19
CH : 62
RBW : 100KHz
VBW : 100KHz
SPAN : 10MHz
REF LEV. : 10dBm
ATT. : 20dB
NO