LG 32LV355C, Service Manual

Page: 24 / 61

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.
MMBT3904-(F)
Q1104
OPT
E
B
C
1000pF
50V
C1115
OPT
100pF
50V
C1121
30V
D1113
30V
D1111
10uF
16V
C1118
HEAD_PHONE
5.6V
OPT
D1114
470K
R1103
MMBT3904-(F)
Q1103
OPT
E
B
C
10K R1130
HEAD_PHONE_EXT_SPK
PC_L_IN
0 0 2 : S 1 2
68pF
50V
OPT
C1122
100pF
50V
C1107
DSUB_DET
HP_ROUT
002:U7
30V
D1112
10K
R1142
100pF
50V
C1108
RGB_DDC_SCL
DSUB_VSYNC
RGB_DDC_SDA
18pF
50V
C1128
22
R1143
2SC3052
Q1106
OPT
E
B
C
ISA1530AC1 Q1105
OPT
E
B
C
75
R1133
0 . 1 u F
16V
C1131
ENKMC2838-T112
D1115
A1
C
A2
10K
R1110
10K
R1111
1K
R1125
HEAD_PHONE_EXT_SPK
MMBT3904-(F)
Q1102
OPT
E
B
C
5.6V
OPT
D1116
10K
R1146
+3.5V_ST
470K
R1102
+3.3V_Normal
+5V_Normal
HP_DET
1K
R1128
HEAD_PHONE_EXT_SPK
SPG09-DB-010 JK1104
1
RED
2
GREEN
3
BLUE
4
GND_1
5
DDC_GND
6
RED_GND
7
GREEN_GND
8
BLUE_GND
9
NC
10
SYNC_GND
11
GND_2
12
DDC_DATA
13
H_SYNC
14
V_SYNC
15
DDC_CLOCK
16
SHILED
15K
R1107
Fiber Optic
JST1223-001
JK1103
1
GND
2
VCC
3
VINPUT
4
FIX_POLE
+3.3V_Normal
75
R1135
1K
R1155
HEAD_PHONE_EXT_SPK
HP_LOUT
002:U7
68pF
50V
OPT
C1126
10uF
16V
C1119
HEAD_PHONE
SPDIF_OUT
0 0 2 : T 1 8
30V
D1109
0 . 1 u F
16V
C1129
PC_R_IN
0 0 2 : S 1 2
3.3K
R1129
OPT
75
R1137
+3.3V_Normal
AMOTECH
5.6V
OPT
D1101
EDID_WP
1K
R1147
SIDE_HP_MUTE
AT24C02BN-SH-T
IC1105
RGB_EEMPROM_ATMEL
3
A2
2
A1
4
GND
1
A0
5
SDA
6
SCL
7
WP
8
VCC
MMBT3904-(F)
Q1101
OPT
E
B
C
30V
D1110
KJA-PH-0-0177
JK3301
HEAD_PHONE_EXT_SPK
3 DETECT
4 L
5 GND
1 R
18pF
50V
C1127
DSUB_HSYNC
P E J 0 2 7 - 0 1
JK1102
6B
T_TERMINAL2
7B
B_TERMINAL2
5
T_SPRING
4
R_SPRING
7A
B_TERMINAL1
6A
T_TERMINAL1
3
E_SPRING
1000pF
50V
C1116
OPT
AMOTECH
5.6V
OPT
D1102
5.6V
D1117
OPT
15K
R1108
22
R1141
R1EX24002ASAS0A
IC1105-*1
RGB_EEMPROM_RENESAS
3
A2
2
A1
4
VSS
1
A0
5
SDA
6
SCL
7
WP
8
VCC
2.2K
R1139
2.2K
R1140
100
R26
EXT_SPK
10K
R28
EXT_SPK
22.0uH
L23
EXT_SPK
+24V
0 . 4 7 u F
50V
C31
EXT_SPK
EXT_R_AMP_IN
0 . 1 u F
50V
C22
EXT_SPK
0 . 1 u F
50V
C26
EXT_SPK
EXT_AMP_MUTE
0 . 2 2 u F
50V
C25
EXT_SPK
10K
OPT
R29
AMP_RESET
TPA3124D2PWPR
IC20
EXT_SPK
3
PVCCL_2
2
SD
4
MUTE
1
PVCCL_1
6
RIN
5
LIN
7
BYPASS
8
AGND_1
9
AGND_2
10
PVCCR_1
11
VCLAMP
12
PVCCR_2
13
PGNDR_1
14
PGNDR_2
15
ROUT
16
BSR
17
GAIN1
18
GAIN0
19
AVCC_1
20
AVCC_2
21
BSL
22
LOUT
23
PGNDL_1
24
PGNDL_2
EXT_OUT_R
4.7K
R31
EXT_SPK
EXT_L_AMP_IN
10K
R30
EXT_SPK
0 . 2 2 u F
50V
C24 EXT_SPK
10K
OPT
R27
1uF
50V
C20
EXT_SPK
100
R25
OPT
4.7K
R32
EXT_SPK
BLM18PG121SN1D
L20
EXT_SPK
1uF
50V
C28
EXT_SPK
22.0uH
L22
EXT_SPK
0 . 1 u F
50V
C23
EXT_SPK
1uF
50V
C29
EXT_SPK
0 . 4 7 u F
50V
C30
EXT_SPK
1uF
50V
C21
EXT_SPK
EXT_OUT_L
2SC3052
EXT_SPK
Q20
E
B
C
1K
EXT_SPK
R33
10K
EXT_SPK
R34
EXT_OUT_L
009:AM21
EXT_OUT_R
009:AM20
10uF
35V
C27
EXT_SPK
100uF 25V C32
EXT_SPK
100uF 25V C33
EXT_SPK
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 OPTIC JACK
RGB/SPDIF/PC/HP/EXT SPEAKER
PC AUDIO
RGB PC
EARPHONE BLOCK or EXTERNAL SPEAKER JACK4
New Item Development
20101023 GP2R
RGB/SPDIF/HP 9
EXT_SPEAKER_AMP
Copyright © 2011 LG Electronics. Inc. All rights reserved.
Only for training and service purposes
LGE Internal Use Only