User Guide

SAMSUNG Proprietary-Contents may change without notice
SGH-E610 Flow Chart of Troubleshooting and Circuit Diagrams
2-17
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2. DCS Receiver
CONTINUOS RX ON
RF INPUT : 698CH
Cell power : -50dBm
NORMAL
CONDITION
catch the channel?
F100 CHECK
pin13
≥
-65dBm?
F100 CHECK
pin3,4
≥
-65dBm?
U101 CHECK
pin18,19
≥
CHECK
L104,L105,contact
NO
CN101
resolder or change
NO
F100
resolder or change
NO
C110,C114,L101
resolder or change
NO
YES
YES
YES
YES
U101 CHECK
pin9,32 : 2.8V
NO
U301 PIN A13, C311
resolder or change
U101 CHECK
R103:13MHz
NO
R103, C105
resolder
NO
OSC101 CHECK
pin 4 : 2.8V
pin 3 : 13MHz
Vp-p : 950mV
YES
OSC101
change
NO
U101 CHECK
pin 1,2,3,4,5,6,7:
Vp-p100mV
NO
U101
resolder or change
YES
DCS Receiver is
ok?
NO
DCS RX path component
resolder or change
END
YES