LG 32LD350 Service Manual page 22

COMMON AREA
EARPHONE AMP
H/P_L
002:Y10
+5V_EARPHONE
C1100
1uF
10V
+5V_EARPHONE
R1106
10K
R1104
10K H/P_R
C
R1105
B
Q1105
2SC3052 002:Y10
10K
+3.5V_ST
E
R1100
C
R1101
B
Q1100
HP_MUTE
2SC3052
10K
E
PC AUDIO
JK1102
PEJ027-01
E_SPRING
3
T_TERMINAL1
6A
B_TERMINAL1
7A
R1107
D1101
R_SPRING C1107
4 15K
AMOTECH
100pF R1102
5.6V 50V 470K
OPT
T_SPRING
5
R1108
B_TERMINAL2
7B 15K
D1102
T_TERMINAL2 C1108 R1103
6B
AMOTECH 100pF 470K
5.6V 50V
OPT
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.
IC1100
TPA6110A2DGNRG4
R1115 C1103
R1116
20K 0.22uF
BYPASS IN1- 16K
1 8
16V
GND VO1
2 7
SHUTDOWN VDD
3 6
C1101
0.22uF R1109
16V 16K IN2- VO2
4 5
C1102 C1104
0.1uF 10uF
R1114
16V 10V
20K
360mVrms(8mW) => 450mVrms(13mW)
SPDIF OPTIC JACK
5.15 Mstar Circuit Application
SPDIF_OUT
PC_R_IN
2:S16
R1112
2:X18
0
R1110
10K
PC_L_IN 2:S16
R1113
0
R1111
10K
New Item Development
EARPHONE BLOCK
+5V_Normal
+5V_EARPHONE
D1100
ENKMC2838-T112 HP_LOUT
A1
C
A2 2:X19
C1106
HP_LOUT
100uF
C1111
16V R1117
1000pF
1K
OPT
HP_ROUT
HP_ROUT
C1110
C1109 R1118
1000pF 2:X19
100uF
1K
OPT
16V
C1105
10uF
10V
+3.3V_Normal
IC1104
R1152 NL17SZ00DFT2G
4.7K
A VCC
GND
1 5
C1117
0.1uF
B
16V VCC
2
R1126
GND Y 22
VINPUT
3 4
C1131
C1121
0.1uF
100pF
16V
50V
R1127
0
OPT
R1119
0
1/10W
5%
C1115
1000pF
50V R1125
C C
1K
OPT
Q1101 B B Q1104 +3.3V_Normal
OPT
MMBT3904-(F) MMBT3904-(F)
E E
R1155
1K
R1120 HP_DET
0
1/10W
5%
C1116
C C
1000pF
50V
Q1102 B B Q1103
R1128
OPT +3.5V_ST
MMBT3904-(F) MMBT3904-(F)
1K
OPT
E E
R1129
10K
RGB PC
IC1105
AT24C02BN-10SU-1.8
R1139
A0 VCC 4.7K
1 8
A1 WP
2 7
A2 SCL
3 6
GND SDA
4 5
C1127
18pF
50V
DSUB_VSYNC
R1150
0
DSUB_HSYNC
R1148
C1122 C1126 0 D1109
30V
68pF 68pF
50V 50V
OPT
OPT
DSUB_B
OPT
D1110
C1123
R1133 30V
OPT
75
DSUB_G
OPT
R1135 D1111
C1124
75 30V
OPT
DSUB_R
D1112
R1137 C1125
30V
OPT
75
OPT
COMMON AREA
JK3301
KJA-PH-0-0177
GND 5
L 4
DETECT 3
R 1
SIDE_HP_MUTE
+5V_Normal
D1115
ENKMC2838-T112
A1
C
A2
C1129
0.1uF
16V
R1140
R1142
4.7K
10K
EEPROM_WP
ISP_RXD
ISP_TXD
C1128 R1141
22 R1143
18pF
22
50V
D1116
D1114
5.6V
5.6V
OPT
OPT
D1113
30V
+3.3V_Normal
R1146
10K
DSUB_DET
R1147
1K
D1117
5.6V
09.09.03
LD350
9