LG 42LV375H Service Manual page 29

EARPHONE BLOCK
New Item Development
HP_LOUT
C902
Q900 Q903
1000pF C
MMBT3904-(F) MMBT3904-(F) E
50V
B
B
E
C
HP_DET
HP_ROUT
C903 Q901 Q902
C
MMBT3904-(F) MMBT3904-(F) E
1000pF
50V
B
B
E
C
COMPONENT
+3.3V_NORMAL
R902
10K
D900
C931
5.6V
100pF
50V
CM2012FR27KT
[GN]E-LUG
D903 C932
6A 5.1V 27pF
[GN]O-SPRING 50V
D910
5.1V
5A
[GN]CONTACT CM2012FR27KT
4A
[BL]E-LUG-S
C933
D904
7B
27pF
5.5V
[BL]O-SPRING
50V
5B CM2012FR27KT
[RD]E-LUG-S
7C
C934
[RD]O-SPRING_1
D905
27pF
5.5V
5C 50V
[WH]O-SPRING C935
5D
[RD]CONTACT
4E D901
5.6V
[RD]O-SPRING_2
5E
[RD]E-LUG C936
1uF
6E
PPJ234-01
D902
JK900
5.6V
USB / DVR Ready
+3.3V_NORMAL
IC903
AP2191SG-13
NC GND
8 1
R924
L900
120-ohm 4.7K
MLB-201209-0120P-N2 OUT_2 IN_1
7 2
C909
OUT_1 IN_2
10uF
6 3
10V
FLG EN
5 4
R920
0
R925
0
R926
0
D906
D907
CDS3C05HDMI1 CDS3C05HDMI1
5.6V
5.6V
THE SYMBOL MARK OF THIS SCHEMETIC DIAGRAM INCORPORATES
SPECIAL FEATURES IMPORTANT FOR PROTECTION FROM X-RADIATION.
FILRE AND ELECTRICAL SHOCK HAZARDS, WHEN SERVICING IF IS
ESSENTIAL THAT ONLY MANUFATURES SPECFIED PARTS BE USED FOR
THE CRITICAL COMPONENTS IN THE SYMBOL MARK OF THE SCHEMETIC.
Copyright © 2011 LG Electronics. Inc. All rights reserved.
Only for training and service purposes
JK901
+3.3V_NORMAL
KJA-PH-0-0177
GND 5
R917
10K
L 4
R912
1K
DETECT 3
R 1
+3.5V_ST
OPT
R914
10K
SIDE_HP_MUTE
R903
1K
COMP2_DET
L904
COMP2_Y
C904
27pF
50V
L903
COMP2_Pb
C906
27pF
50V
L902
COMP2_Pr
C905
27pF
50V
1uF
R910
25V
0
COMP2_L_IN
C939
100pF
50V
R909
25V
0
COMP2_R_IN
C937
100pF
50V
+5V_USB
R921
10K
C910
C911
10uF
0 . 1 u F
10V
USB1_CTL
USB1_OCD
SIDE_USB_DM
SIDE_USB_DP
RGB PC
+5V_NORMAL
IC901
74F08D
D0A VCC
1 14
D0B D3B C921
2 13
0.1uF
R931
Q0 D3A
22
3 12
RGB_HSYNC
D1A Q3
RGB_VSYNC
4 11
R932
22
D1B D2B
5 10
Q1 D2A
6 9
GND Q2
7 8
R934
22
R933
22
BCM Reference
DSUB_B
DSUB_G
DSUB_R
R958 R959 R960
75 75 75
RGB AUDIO IN
JK904
PEJ027-01
E_SPRING
3
T_TERMINAL1
6A
B_TERMINAL1
7A
R_SPRING
4
T_SPRING
5
B_TERMINAL2
7B
T_TERMINAL2
6B
SPDIF OPTIC JACK
JK903
+3.3V_NORMAL
JST1223-001
GND
VCC
VINPUT
SPDIF_OUT
C917
D908
0 . 1 u F
30V 16V
FIX_POLE
OPT
IC902-*1
R1EX24002ASAS0A
A0 VCC
1 8 +5V_NORMAL
A1 W P
2 7
D918
A2 SCL
3 6
ENKMC2838-T112
DEV
A1
VSS SDA
4 5 C
A2
OPT
RGB_EDID_RENESAS R913
10K
RGB_EDID_ST
IC902
M24C02-RMN6T
R951
E0 VCC 10K
1 8
R953
E1 7 WC 100
2 EDID_WP
E2 6 SCL R944
3 DDC_SCL
22
R942
VSS SDA
4 5
DDC_SDA
22
R952
0
OPT
D919
CDS3C05HDMI1
5.6V
+3.3V_NORMAL
OPT OPT
OPT
C923 C924
D917
22pF 22pF
50V CDS3C05HDMI1
50V
5.6V
R955
10K
R956
L905
1K
60-ohm
RBG_BEAD
L906
OPT OPT C930
60-ohm
R954
D920
100pF
0
RBG_BEAD 5.6V
50V
L907 AMOTECH
60-ohm
RBG_BEAD
BCM Reference
L905-*1
0 RGB IN
RGB_0OHM
L906-*1 0
RGB_0OHM
L907-*1 0
RGB_0OHM
C926
1uF
R949
0
PC_R_IN
D915
AMOTECH R939
5.6V
470K
C927
1uF
R950
0
PC_L_IN
D916
R940
AMOTECH
5.6V 470K
Chameleon(EU_GP2_BCM3556)
xxLV375H-ZA
A V I n t e r f a c e
DSUB_DET
2 0 1 0 . 1 2 . 2 0
9
LGE Internal Use Only