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Flow Chart of Troubleshooting
10-
28
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10-2-7. UMTS Rx
RX ON
RF Input : 10700CH
Cell Power : -40dBm
Check pin #8 of
PAM100
≥
-50dBm
Check pin #3 of
DUP200
≥
-50dBm
Check pin #26 of
U200
≥
-50dBm
Check the pin #7 of
U201 = 19.2Mhz
Check the pin #10,11,12,13 of
U201 Vp-p=160mV
END
Resolder or Change
RFS101, L100,C100
Resolder or Change
PAM100
Check soldered status of
DUP200
Resolder or change
C231, C232
Resolder or Change
TCX200
Resolder or Change
U201
Normal Condition Catch the
channel
Check pin #10 of
PAM101
≥
-50dBm
UMTS Receiver is O.K?
UMTS RX path component
resolder or change
Check soldered status of
ANT, L114, R101, C101
YES
YES
YES
YES
YES
YES
YES
YES
YES
NO
NO
NO
NO
NO
NO
NO
NO
①
②
③
④
⑤
⑥
⑦
Check
PAM
101
pin #28 : Low
pin #1, 27 : High ?
NO
YES
Resolder or change UCP300
Summary of Contents for SGH-G800
Page 48: ...Flow Chart of Troubleshooting 10 2 ...
Page 53: ...Flow Chart of Troubleshooting 10 7 ...
Page 56: ...Flow Chart of Troubleshooting 10 10 ...
Page 60: ...Flow Chart of Troubleshooting 10 14 ...
Page 62: ...Flow Chart of Troubleshooting 10 16 ...
Page 64: ...Flow Chart of Troubleshooting 10 18 ...