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2-1-2. DCS RX
NORMAL CONDITION
catch the channel?
YES
pin#8 of U103 ≥ -65dBm
YES
pin#4,5 of U103 ≥ -65dBm
YES
pin#18,19 of U102 ≥ -65dBm
YES
pin#9,32 of U102 = 2.8V
YES
At U102
pin#8 = 13MHz
Vp-p = 950mV
YES
pin#1,2,3,28 Vp-p
of U102 = 120mV
YES
Check U401
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SGH-E530 Flow Chart of Troubleshooting
CONTINUOUS RX ON
RF INPUT : 698CH
AMP
NO
CHECK ANT1,C143
ANT2, L101 contact ?
NO
Check C103,CN100
NO
Check U103
NO
Check C113, C117, L106
NO
Check C421, pinA13 of U401
NO
Check OSC100
NO
Check U102
2-15
: -50dBm
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