SETTING : After initialize 5515C, Test US Cellular
Checking Flow
START
Voltage at R371 = 1.2V?
(MIC BIAS Voltage Check)
Check the soldering
Of R371
Re-solder R371
Replace U201(QSC6010)
Check the signal level
at + pin of MIC.
Is It a few tens mVAC?
Replace the microphone
Check the soldering of
C327
Re-solder C327
MIC will work properly
Yes
Yes
Yes
No
No
No
No
Yes
Does MIC work Properly?
Replace U201(QSC6010)
No
Yes
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Summary of Contents for LG-UD6100
Page 25: ...Circuit Diagram Z 3 X B O X C O M ...
Page 40: ...Test Points Circuit Diagram 4 3 5 UIM Trouble CON301 3 0V 3 2 1 Z 3 X B O X C O M ...
Page 46: ...Test points Circuit Diagram 4 3 8 MIC Trouble R371 C327 M301 MIC Z 3 X B O X C O M ...
Page 55: ...BACK_END_CLOCK M_CLOCK P_CLOCK VS DATA 0 Camera Locking Error Z 3 X B O X C O M ...
Page 62: ...Z 3 X B O X C O M 0 Ohm Pad 0 Ohm Pad DNI DNI ...
Page 63: ...Z 3 X B O X C O M 0 Ohm Pad 0 Ohm Pad DNI DNI ...
Page 64: ...Z 3 X B O X C O M ...
Page 65: ...Z 3 X B O X C O M ...
Page 66: ...Z 3 X B O X C O M ...