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SGH-E610 Flow Chart of Troubleshooting and Circuit Diagrams
2-
20
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5. DCS Transmitter
F100 pin 13
about 2~3
dBm?
F100
pin 9 : 2.8V
U102 pin
31
3~4dBm?
U301
check &
change
U102
check &
change
CON101,
L105, C138
check & change
U102
pin 42, 43
: 3.7 V?
BATTERY, U301
check & change
U102
pin 40 :
'HIGH'
U102 pin 41
: 'HIGH'
U102
pin 45 : 1.2
V
U102 pin 37
about :
-5dBm?
U102
change &
resolder
U301
check &
change
NO
NO
NO
NO
NO
NO
NO
NO
YES
YES
YES
YES
YES
YES
YES
YES
CONTINUS TX ON
CONDITION
MS TX level 12
CH : 698
RBW : 100KHz
VBW : 100KHz
SPAN : 10MHz
REF LEV. : 10dBm
ATT. : 20dB
U101
pin9,32
2.8V?
NO
NO
U301
change
U101
pin4,5,6,7
:
1.7V
YES
NO
U101
pin8 13MHz
Vp-p:950mV
NO
OSC101
pin 3 :13MHz?
Vp-p :
950mV
NO
OSC101
change or
resolder
YES
OSC101
pin 4 :
2.8V
NO
U301 pin A13,
R101
change or resolder
YES
U101
change or
resolder
U101 change or resolder
YES
YES
U102
check &
change
CHECK
U301 pin A13, C311
change or resolder