User Guide

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SGH-E530 Flow Chart of Troubleshooting

2-15

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pin#8 of U103

≥

-65dBm

2-1-2. DCS RX

CONTINUOUS RX ON

RF INPUT : 698CH

AMP : -50dBm

NORMAL CONDITION

catch the channel?

CHECK ANT1,C143

ANT2, L101 contact ?

pin#9,32 of U102 = 2.8V

pin#4,5 of U103

≥

-65dBm

pin#18,19 of U102

≥

-65dBm

Check C103,CN100

Check U103

Check C113, C117, L106

Check C421, pinA13 of U401

At U102

pin#8 = 13MHz

Vp-p = 950mV

Check OSC100

Check U102

Check U401

pin#1,2,3,28 Vp-p

of U102 = 120mV

YES