LG HB620 Service Manual page 86

CN701
21
19
1
2
3
4 C841
5 C842 33u
6
7
8
FB504
9
10
11
Copyright © 2008 LG Electronics. Inc. All right reserved.
Only for training and service purposes
MICBIAS
R703 68
33u
R704 68
FL701
[Fig. 4.4] Schematic of voice path
- 87 -
4. TROUBLE SHOOTING
FB503
EAR_MIC_P
TV_OUT
EAR_L
EAR_R
RMT_INT/USB_D+
RMT_ADC/USB_D-
EAR_SENSE_N
LGE Internal Use Only
VBATT
+5V_PWR