Flow Chart of Troubleshooting and Circuit Diagrams
10-25
UCD100 CHECK
pin12
≥
-65dBm ?
10-2-3. DCS RX
①
NORMAL CONDITION
catch the channel?
CONTINUOUS RX ON
RF INPUT : 690CH
BCH POWER : -60dBm
NO
CHECK
ANT101,ANT102,L101,
L102,L104,L105,C105,
C113,C139,R106
YES
①
RFS100,
C105,L101,L104,C113,L105
resolder or change
NO
②
YES
NO
UCD100
resolder or change
UCD100 CHECK
pin19
≥
-65dBm ?
②
YES
NO
C110,F101,C109,C112,L103
resolder or change
U100 CHECK
pin22,23
≥
-65dBm ?
YES
③
③
④
UCD300
resolder or change
CHECK & RESOLDER
U100
U100 CHECK
pin4,5,6,7 Vp-p :
800mV
CHECK& RESOLDER
U100
YES
NO
NO
CHECK& RESOLDER
OSC100
OSC100 CHECK
PIN3:26MHz?
U100 CHECK
pin34,35 :
26MHz ?
CHECK& RESOLDER
UCD300
CHECK the
power source of
UCD100
YES
NO
YES
YES
NO
Summary of Contents for SGH-J610
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Page 42: ...Flow Chart of Troubleshooting and Circuit Diagrams 10 9 ...
Page 43: ...Flow Chart of Troubleshooting and Circuit Diagrams 10 10 ...
Page 45: ...Flow Chart of Troubleshooting and Circuit Diagrams 10 12 ...
Page 47: ...Flow Chart of Troubleshooting and Circuit Diagrams 10 14 ⓩ ...
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Page 53: ...Flow Chart of Troubleshooting and Circuit Diagrams 10 20 ...
Page 54: ...Flow Chart of Troubleshooting and Circuit Diagrams 10 21 ...
Page 55: ...Flow Chart of Troubleshooting and Circuit Diagrams 10 22 ...
Page 57: ...Flow Chart of Troubleshooting and Circuit Diagrams 10 24 ⓩ ⓩ ...
Page 59: ...Flow Chart of Troubleshooting and Circuit Diagrams 10 26 ⓩ ⓩ ...
Page 61: ...Flow Chart of Troubleshooting and Circuit Diagrams 10 28 ⓩ ...
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