Samsung SGH-M600S Service Manual page 29

3-2-2. DCS RX
SAMSUNG Proprietary-Contents may change without notice
NORMAL CONDITION
catch the channel?
YES
PAM100 CHECK
pin12 ≥ -65dBm ?
YES
PAM100 CHECK
pin18 ≥ -65dBm ?
YES
F101 CHECK
pin3,4 ≥ -65dBm ?
YES
U100 CHECK
pin19,20 ≥ -65dBm ?
YES
U100
pin 13 : 2.8V ?
YES
U100 CHECK
pin 30,31 :
26MHz ?
Vp-p : 380mV?
YES
UCP201 CHECK!!
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NO
CHECK
ANT contact ?
NO
PAM100,RFS100
resolder or change
NO
PAM100
resolder or change
NO
F101
resolder or change
NO
C111,C113,L104
resolder or change
NO
UCP300 pinA13, C316
change or resolder
OSC100
change or resolder
3-13
Flow Chart of Troubleshooting
CONTINUOUS RX ON
RF INPUT : 698CH
AMP : -50dBm