SGH-E910 Flow Chart of Troubleshooting
2-
28
2-2-5. DCS Transmitter
CONTINUS TX ON
CONDITION
CH : 698
RBW : 100KHz
VBW : 100KHz
SPAN : 10MHz
REF LEV. : 10dBm
ATT. : 20dB
PAM100 pin11
about2~3dBm?
U102
pin6 ,9,4: 2.8v
pin5 :0v
PAM100,U301
check &
change
2
NO
NO
U101 PIN15
6~8dBm?
YES
YES
CN101
C109,R103
Check & Change
1
NO
PAM100
pin7 : 3.7V
YES
C108, PAM100
Check & Change
3
PAM100
pin8 :
240mVv
YES
Battery,Battery connector
check & change
NO
4
PAM100
pin11 :
4~8dBm
YES
NO
YES
5
PAM100
change & resolder
U101
pin16 :
6~8dBm
NO
6
U101
check & change
U101
pin30,31:26MHz
Vp-p:600,800mv
11
10
9
8
7
U101
pin8:13MHz
1.8Vp-p
YES
U301
check &
change
NO
YES
NO
YES
YES
NO
NO
U101
check & change
OSC101
check & change
U101
check &
change
U101
pin4,5,6,7 :
1.7v
U101
change or resolder