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2-2-2. DCS RX
②
④
SAMSUNG Proprietary-Contents may change without notice
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NORMAL CONDITION
catch the channel?
YES
F101
CHECK
pin8 ≥ -65dBm ?
YES
F101 CHECK
pin1 ≥ -65dBm ?
YES
F100 CHECK
pin8,9 ≥ -65dBm ?
YES
U100
CHECK
pin19, 20 ≥ -65dBm ?
YES
U100
pin 12,13,25,26,27:
YES
U100 CHECK
pin 30,31 :
26MHz ?
YES
U100
pin4,5,6,7 Vp-p
: 120mV ?
YES
U300 CHECK!!
SGH-C120 Flow Chart of Troubleshooting
NO
NO
resolder or change
NO
resolder or change
NO
resolder or change
NO
C124,C126,L105
resolder or change
NO
U300 pinA13, C314
change or resolder
NO
OSC100
change or resolder
NO
U100
resolder or change
2-17
CONTINUOUS RX ON
RF INPUT : 698CH
AMP : -50dBm
CHECK
①
ANT
contact ?
F101,RFS100
③
F101
F100
⑤
⑥
⑦
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