LG KE990 Service Manual - Page 107
Schematic of voice path
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CN500 21 19 1 2 3 4 5 6 7 8 9 10 11 12 13 14 FB504 4. TROUBLE SHOOTING CN500 R524 R525 R528 100 FM_ANT EAR_MIC_P TV_OUT MIDI_EAR_L MIDI_EAR_R RMT_INT-USB_D+ RMT_ADC-USB_DEAR_SENSE_N VBATT RMT_PWR_ON_N Schematic of voice path LGE Internal Use Only - 108 - Copyright © 2008 LG Electronics. Inc. All right reserved. Only for training and service purposes
LGE Internal Use Only
Copyright © 2008 LG Electronics. Inc.
All right reserved.
Only for training and service purposes
4. TROUBLE SHOOTING
- 108 -
CN500
R524
R525
FB504
2
21
3
4
5
6
7
8
9
CN500
1
10
11
12
13
14
19
R528
100
TV_OUT
EAR_MIC_P
RMT_INT-USB_D+
RMT_ADC-USB_D-
RMT_PWR_ON_N
VBATT
FM_ANT
MIDI_EAR_L
MIDI_EAR_R
EAR_SENSE_N
Schematic of voice path