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SAMSUNG Proprietary-Contents may change without notice
Flow Chart of Troubleshooting
3-13
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3-2-2. DCS Rx
Continuous RX ON
RF Input : 698CH
AMP : -50dBm
Check pin #8 of
PAM101
≥
-65dBm
Check pin #36,37 of
U201
≥
-65dBm
Check VDDA pins of
U201
≒
2.65V
Check the pin #7 of
U201 = 19.2Mhz
Check the pin #10,11,12,13 of
U201 Vp-p=160mV
END
Resolder or Change
RFS101, L100,C100
Resolder or Change
PAM101
Check soldered status of
C112,L108,L109,L110
Resolder or change PMIC500 pin 67,
R520
Resolder or Change TCX101
Resolder or Change U201
Normal Condition Catch the
channel
Check pin #5 of
PAM101
≥
-65dBm
DCS Receiver is O.K?
DCS RX path component
resolder or change
Check soldered status of
ANT, R127, C101, C104
YES
YES
YES
YES
YES
YES
YES
YES
YES
NO
NO
NO
NO
NO
NO
NO
NO
①
②
③
④
⑤
⑥
⑦
Check
PAM
101
pin #1,27,28 : High
?
NO
YES
Resolder or change U301