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4.15.3 Loud Speaker path(voice speaker phone, VT, multimedia play, etc)
Loud speaker path as below:
MSM6250A HPL_L -> R523 -> C525 -> R524 -> U502(AMP) -> CN501 ->
MAIN FPCB(b’d to b’d connector) -> Speaker
Start
The sine wave appear at
R523?
Change the Main board
NO
Connect the phone to network
Equipment and setup call
Setup 1KHz tone out
Set phone with speaker Phone mode
The sine wave appear at
C525, R524?
YES
Check C526, C525, R524 or
Change the Main board
NO
Check U502
NO
YES
YES
Can you hear the tone?
Change the speaker
NO
YES
END
YES
The sine wave appear at
22 and 23 pin of CN501
The sine wave appear at
Speaker soldering point?
NO
Check connector pin and
Speaker soldering point.
Or Change the LCD FPCB
Z3X-BOX.COM
Содержание L601i
Страница 1: ...Date October 2006 Issue 1 0 Service Manual Model L601i Service Manual L601i Z 3 X B O X C O M ...
Страница 3: ... 4 Z 3 X B O X C O M ...
Страница 45: ...3 TECHNICAL BRIEF 46 Figure PM6650 2 Functional Block Diagram Z 3 X B O X C O M ...
Страница 105: ...4 TROUBLE SHOOTING 106 Audio AMP 22 and 23 pin of CN501 Z 3 X B O X C O M ...
Страница 109: ...4 TROUBLE SHOOTING 110 Ear_sense_n pin R506 R507 R505 Z 3 X B O X C O M ...
Страница 112: ...4 TROUBLE SHOOTING 113 Q400 Q401 VBAT T GND Z 3 X B O X C O M ...
Страница 121: ...5 DOWNLOAD 122 Download of Module image in progress Download process has completed successfully Z 3 X B O X C O M ...
Страница 125: ...5 DOWNLOAD 126 Click on X button to use another function Z 3 X B O X C O M ...
Страница 130: ...6 BLOCK DIAGRAM 131 6 2 Interface Diagram L601i Interface Diagram Z 3 X B O X C O M ...
Страница 132: ...6 BLOCK DIAGRAM 133 Top Side Z 3 X B O X C O M ...
Страница 133: ... Bottom Side 6 BLOCK DIAGRAM 134 Z 3 X B O X C O M ...
Страница 141: ... 142 8 PCB LAYOUT Z 3 X B O X C O M ...
Страница 142: ... 143 8 PCB LAYOUT Z 3 X B O X C O M ...
Страница 143: ... 144 8 PCB LAYOUT Z 3 X B O X C O M ...
Страница 144: ... 145 8 PCB LAYOUT Z 3 X B O X C O M ...
Страница 145: ... 146 Z 3 X B O X C O M ...
Страница 151: ... 152 Z 3 X B O X C O M ...
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Страница 176: ...Note Z 3 X B O X C O M ...
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