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4.1.3 Speaker/Receiver Trouble (1)
•
Block Diagram
IOTA
U101
FPCB
CN301
Main Board
EAR_P
B-to-B
Connector
C293
Receiver
EAR_N
Calypso
U102
YMU788
U201
SPKN
SPKP
R292
RCV_N
RCV_P
C291
C292
U202
MAX4624
R209
C215
SPK_EN
R291
CN201
Speaker
Slide Board
EAR_N
EAR_P
CN901
B-to-B
Connector
C217
•
Melody Generation
- U201(YMU788,MIDI) is controlled by
Calypso (DBB)
- U201 generates 64poly MIDI sound and it is
delivered to the speaker.
•
Signals to the receiver
- RCV_P,RCV_N From IOTA (ABB).
- EAR_P,EAR_N to Receiver via B-to-B
Connector
•
Check Points
- Audio signals from ABB
- Audio signals to the receiver
- Audio signal path
- Check the sound level to the speaker.
- Soldering of connector & speaker/receiver
- Speaker/Receiver
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Содержание LG9200
Страница 1: ...Service Manual Model F9200 Service Manual LG9200 Date October 2005 Issue 1 0 Z 3 X B O X C O M ...
Страница 3: ... 4 Z 3 X B O X C O M ...
Страница 107: ... 120 8 PCB LAYOUT Z 3 X B O X C O M ...
Страница 108: ... 121 8 PCB LAYOUT Z 3 X B O X C O M ...
Страница 109: ...8 PCB LAYOUT 122 Z 3 X B O X C O M ...
Страница 110: ... 123 8 PCB LAYOUT Z 3 X B O X C O M ...
Страница 111: ... 124 Z 3 X B O X C O M ...
Страница 116: ...9 Calibration 129 E Calibration Equipment Setup Z 3 X B O X C O M ...
Страница 120: ...9 Calibration 133 Calibration LG9200 with HOT_KIMCHI 1 Calibration is running Z 3 X B O X C O M ...
Страница 121: ...9 Calibration 134 Calibration LG9200 with HOT_KIMCHI 1 Calibration is complete Z 3 X B O X C O M ...
Страница 123: ... 136 Z 3 X B O X C O M ...
Страница 142: ...Note Z 3 X B O X C O M ...