LG -D385 Service Manual page 135

Main PCB
AV4
SPKR_DRV_P
AW3
SPKR_DRV_M
AU7
EARO_P
AU5
EARO_M
AU9
HPH_REF
AY10
HPH_L
AV10
HPH_R
AV6
C2100 1u
CP_VPOS
AW9
C2101 2.2u
CP_VNEG
AW7
CP_C1_P
AY8
C2102 2.2u
CP_C1_N
AM4
MIC_BIAS
AV2
R2111
HS_DET
20K
FPCB
SPK_P
SPK_N
C6700
4.7n
LGE Internal Use Only
CP_GND
MIC_BIAS_1
L6700
L6701
TP1(C6700, C6701, L6700,
L6701, VA12006,VA12007)
C6701
4.7n
- 135 -
* Note
The GND side of C2100 & C2101 must connct to CP_GND (pin AV8)
before connecting to the ground plane.
DGMS Guide
MC-C06162-1 : 1. Don't connect Positive of Tantal, TVS diode
2. We recommend MLCC capacitor in this case
82n
82n
Copyright © 2014 LG Electronics. Inc. All right reserved.
3. TROUBLE SHOOTING
SPK_P
SPK_N
RCV_P
RCV_N
HPH_REF * Note : Earjack Debugger Option
HPH_L_OUT HPH_L --> HPH_L_OUT
HPH_R_OUT HPH_R --> HPH_R_OUT
2108611-5
CN13002
FEED
CN13003
FEED
2108611-5
Only for training and service purposes