![background image](http://html.mh-extra.com/html/samsung/gt-b3410/gt-b3410_service-manual_340718049.webp)
SAMSUNG Proprietary-Contents may change without notice
Flow Chart of Troubleshooting
This Document can not be used without Samsung's authorization
9-21
9-11. GSM900 Receiver
RX ON
Cell Power : -60dBm
PAM100 PIN15
≥
-65dBm
Yes
Resolder RFS100, L100, L101, L102,
C103, C181
No
Yes
No
Check PAM100
PIN1 = L
F101 Pin 8, 9
≥
-68dBm
Check ANT Switch
control circuit
No
Yes
Resolder PAM100
Yes
U103
pin 17
≥
-70dBm
pin 18
≥
-70dBm
Resolder C118, C120, L107
No
Yes
U103 pin 4, 6, 7, 12
≥
2.8V
No
U103 pin 27, 28, 29,
30
≥
0.2Vp_p
No
Check & Resolder
C127,C128,C138
Yes
Yes
Resolder U103
Check U200
END