Samsung GT-C5510 - Page 44

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Flow Chart of Troubleshooting
9-21
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9-2-10.
WCDMA Band8 TX
U100 pin
11:
about
2~3
dBm?
RFS
100,
C114,C115
check&change
U1
00
pin
7 : 2.85
V?
U100
check
&
change
PAM
200
pin
14: 3.7~4.2
V?
NO
NO
YES
YES
NO
BATTERY
,
UC
P300
check
&
change
PAM
200
pin
3 : 2.5V ?
YES
NO
PAM
200
pin
4
about
:-5
dBm
?
YES
YES
U200
change or resolder
NO
U
CP300
check
NO
F200 pin
1
about
:-5
dBm?
U
CP300
change resolder
NO
U
CP300
change oresolder