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HEADPHONE
HP_LOUT
C1118
HEAD_PHONE
10uF
C
HEAD_PHONE
16V
C1115
R1125
Q1101
B
1000pF
HEAD_PHONE
1K
MMBT3904(NXP)
50V
OPT
E
HP_ROUT
C1119
10uF
HEAD_PHONE
16V
C
C1116
HEAD_PHONE
R1128
1000pF
Q1102
B
1K
50V
MMBT3904(NXP)
OPT
HEAD_PHONE
E
SIDE USB
+5V_USB
C1117
22uF
16V
SPDIF OPTIC JACK
5 . 1 5 M s t a r C i r c u i t A p p l i c a t i o n
SPDIF_OUT
C1109
C1110
R1104
22uF
10uF
10K
16V
16V
DELETE
DELETE
DELETE
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 © 2013 LG Electronics. Inc. All rights reserved.
Only for training and service purposes
E
HEAD_PHONE
JK1101
B
Q1104
+3.3V_Normal
KJA-PH-0-0177
MMBT3904(NXP)
C
HEAD_PHONE
GND
5
HEAD_PHONE
R1130
L
4
10K
+3.5V_ST
R1155
HEAD_PHONE
1K
DETECT
3
Q1105
HP_DET
MMBT3906(NXP)
HEAD_PHONE
R
1
E
B
Q1103
R1129
MMBT3904(NXP)
3.3K
C
HEAD_PHONE
HEAD_PHONE
SIDE_USB_DM
SIDE_USB_DP
D1100
RCLAMP0502BA
OPT
+3.3V_Normal
C1131
C1121
0 . 1 u F
100pF
16V
50V
RGB PC
C
B
SIDE_HP_MUTE
DSUB_VSYNC
Q1106
MMBT3904(NXP)
E
HEAD_PHONE
DSUB_HSYNC
DSUB_B+
DSUB_G+
DSUB_R+
PC AUDIO
D1115
ENKMC2838-T112
A1
C
A2
R1140
R1139
C1129
2.2K
2.2K
0 . 1 u F
16V
C1127
C1128
R1175
22
R1162
18pF
18pF
22
50V
50V
D1109
D1113
20V
20V
RGB_ZENER
R1133
D1110
75
20V
ADUC 20S 02 010L
RGB_ZENER
R1135
D1111
75
20V
ADUC 20S 02 010L
D1112
R1137
20V
75
RGB_ZENER
ADUC 20S 02 010L
JK1102
PEJ027-04
E_SPRING
3
T_TERMINAL1
6A
R1107
B_TERMINAL1
15K
7A
DELETE
R_SPRING
C1107
4
D1101
R1110
100pF
R1102
5.6V
10K
50V
470K
200pF
T_SPRING
5
R1108
B_TERMINAL2
7B
15K
DELETE
T_TERMINAL2
D1102
C1108
R1103
6B
R1111
5.6V
100pF
470K
10K
50V
200pF
2013 S7LR2
RGB/HP/USB
+5V_Normal
RGB_DDC_SCL
RGB_DDC_SDA
+3.3V_Normal
R1146
10K
DSUB_DET
R1147
1K
D1117
5.6V
DELETE
PC_R_IN
PC_L_IN
2 0 1 2 . 1 1 . 1 2
11
LGE Internal Use Only
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