Pcs Receiver - Samsung SGH-E600 Service Manual

SGH-E600/E608 Flow Chart of Troubleshooting and Circuit Diagrams

3. PCS Receiver

CONTINUOS RX ON
RF INPUT : 698CH
Cell power : -50dBm
NORMAL CONDITION
pin16,17 ≥ -65dBm?
NO
catch the channel?
YES
NO
F1000 CHECK
pin15 ≥ -65dBm?
YES
NO
F1000 CHECK
pin6 ≥ -65dBm?
YES
NO
F1001 CHECK
pin4,6 ≥ -65dBm?
YES
NO
U901 CHECK
YES
NO
U901 CHECK
pin8: 13MHz
YES
NO
U901 CHECK
pin 1,2,3,,27:
V p-p100mV
YES
NO
d Receiver is ok?
END
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CHECK
R1007,L1000,C1000,contact?
CN1000
resolder or change
F1000
resolder or change
F1001
resolder or change
C1006,C1007,L1003
resolder or change
NO
R800, C902
resolder
U901
resolder or change
GSM RX path component
resolder or change
2-12
OSC800 CHECK
pin 4 : 2.8V
pin 3 : 13MHz
V p-p : 950mV
NO
OSC800
change