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SAMSUNG Proprietary-Contents may change without notice
Flow Chart of Troubleshooting
3-22
This Document can not be used without Samsung's authorization
3-2-4. EGSM TX
Yes
U100
check & change
No
PAM404 pin 13 :
about 32dBm?
CPL400
pin 12 : 2.7V ?
No
C413
,
RFS400
R424
,
ANT402
check & change
PAM404 pin13:
about 32dBm?
Yes
Yes
CPL400
check & change
No
PAM404
pin16, 17: 3.7V?
No
BATTERY
check & change
Yes
PAM404
pin 6 : 2.9V ?
No
U401 pin16
check
Yes
PAM404 pin7
about 5dBm ?
No
PAM406
check & change
U100
check
No
PAM406
pin 2,3 : 2.8V ?
Yes
Yes
U401
pin11,18,28,,32,39
: 2.8V ?
Yes
No
U100
pin
F3,E3
check or resolder
U401
pin35 : 26MHz ?
Vp-p : 950mV ?
No
TCX400
check or resolder
U401
pin24,25,26,27
Vp-p=1V ?
No
Yes
Yes
U100
check or resolder
U401
check or resolder
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②
③
④
⑤
⑥
⑦
⑧
①
①