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SETTING : Connect PIF to the phone, and Power on.
Enter the engineering mode, and set "Melody on" at Buzzer of BB test menu.
No
Yes
Check the soldering
of U603
No
Yes
Yes
No
No
Yes
START
Voltage across
C620,C619
Is over 2.8 V?
Check the signal level of
Pin11,12 and P13,14 of
CN1
Check the soldering
of Pin11,12 and
P13,14 of CN1
Check the state of
contact of dual mode
speaker
Speaker will work
properly
Change Main Board
Internal pattern is opened
Re-soldering U603
Replace U206
Re-soldering
CN300 or CN602
Replace
speaker
No
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Summary of Contents for CE500
Page 3: ... 4 Z 3 X B O X C O M ...
Page 77: ...4 TROUBLE SHOOTING 78 5 Check Tx I Q TXQP TXQN TXIN TXIP U704 Test Point Z 3 X B O X C O M ...
Page 85: ...Note 86 Z 3 X B O X C O M ...
Page 93: ... 94 8 PCB LAYOUT Z 3 X B O X C O M ...
Page 94: ... 95 8 PCB LAYOUT Z 3 X B O X C O M ...
Page 95: ... 96 Z 3 X B O X C O M ...
Page 103: ...9 CALIBRATION 104 L Standalone Test Equipment Setup Oscilloscope Z 3 X B O X C O M ...
Page 105: ... 106 Z 3 X B O X C O M ...
Page 127: ...Note 128 Z 3 X B O X C O M ...