Gsm Receiver - Samsung GT-E2120 Service Manual

9-11. GSM Receiver

RX ON
RF INPUT=62CH
AMP=-50dBm
Yes
Check PAM100
pin 12(EGSMRX)
≥ -65dBm
Yes
Check UCP201
pin G1, F1 (EGSMRX)
≥ -65dBm
Yes
Check UCP201
MOD_STANDBY=HIGH
PON_PA=LOW
BAND=LOW
END
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No
Resolder or Change
PAM100
No
Check C125, C127, and L106
Not ok
Resolder or Change
F100
No
Resolder or Change
UCP201
9-23
Flow Chart of Troubleshooting