LG 22LD350 (CHASSIS:LA04A) Service Manual ▷ View online
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.
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.
R7709 0
R7711 0
R7756
4.7K
CK+_HDMI2
R7738 0
D1-_HDMI4
D7701
DDC_SCL_4
D1+_HDMI2
Q7702
2SC3052
E
B
C
R7735
100
R7710 0
R7702
1K
R7730
1K
R7755
10K
C7700
0.1uF
16V
0.1uF
16V
R7736 0
R7737 0
R7706
22
HPD4
D2+_HDMI2
D0+_HDMI2
DDC_SDA_4
R7713 0
R7705
3.3K
OPT
D2-_HDMI2
5V_HDMI_2
D0-_HDMI4
R7749
22
DDC_SCL_2
C7704
0.1uF
D7702
R7715 0
CK-_HDMI2
IC7701
AT24C02BN-10SU-1.8
HDMI_2
3
A2
2
A1
4
GND
1
A0
5
SDA
6
SCL
7
WP
8
VCC
+5V_Normal
D1-_HDMI2
Q7701
2SC3052
E
B
C
D7705
ENKMC2838-T112
A
1
C
A
2
R7712 0
D0-_HDMI2
DDC_SDA_4
C7705
0.1uF
DDC_SDA_2
R7731
1.8K
D2-_HDMI4
5V_HDMI_4
DDC_SDA_2
HPD2
R7741 0
R7760
4.7K
HDMI_CEC
5V_HDMI_2
D1+_HDMI4
R7743 0
5V_HDMI_4
R7744
10K
CK-_HDMI4
D0+_HDMI4
R7742 0
CK+_HDMI4
R7714 0
R7707
22
R7757
10K
R7750 22
IC7702
AT24C02BN-10SU-1.8
HDMI_4
3
A2
2
A1
4
GND
1
A0
5
SDA
6
SCL
7
WP
8
VCC
C7702
0.1uF
16V
0.1uF
16V
DDC_SCL_4
R7703
1.8K
EEPROM_WP
R7732
3.3K
OPT
R7739 0
D2+_HDMI4
D7706
ENKMC2838-T112
A
1
C
A
2
+5V_Normal
5V_DET_HDMI_2
EEPROM_WP
R7729
10K
R7740 0
R7716 0
HDMI_CEC
R7708
100
DDC_SCL_2
5V_DET_HDMI_4
VR7700
AVRL161A1R1NT
GND
HDMI_CEC
CEC_REMOTE
C7706
0.1uF
16V
0.1uF
16V
+3.5V_ST
GND
R7762
10K
D7703
R7746
0
OPT
R7733
22
R7734
22
R7751 22
R7752 22
R7758
4.7K
R7761
4.7K
JK7702
EAG42463001
HDMI_4
14
13
5
D1_GND
20
JACK_GND
12
11
2
D2_GND
19
18
10
CK+
4
D1+
1
D2+
17
9
D0-
8
D0_GND
3
D2-
16
7
D0+
6
D1-
15
VR7701
AVRL161A1R1NT
AVRL161A1R1NT
OPT
GND
BSS83
Q7703
S
B
D
G
R7745
68K
R7700
68K
OPT
MDS62110201
M1
OPT
MDS62110201
M2
OPT
MDS62110201
M3
OPT
JK7700
EAG59023301
HDMI_2
14
13
5
D1_GND
20
SHIELD
12
11
2
D2_GND
19
18
10
CK+
4
D1+
1
D2+
17
9
D0-
8
D0_GND
3
D2-
16
7
D0+
6
D1-
15
HDMI
HDMI_4
$0.253
HDMI_2
$0.055
HDMI EEPROM
$0.253
$0.055
For CEC
8
LD350
09.09.03
Fiber Optic
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.
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.
C1125
OPT
OPT
OPT
R1112
0
0
D1116
5.6V
OPT
SPDIF_OUT
2:X18
+3.3V_Normal
C1127
18pF
50V
R1142
10K
D1113
30V
JK1104
SPG09-DB-010
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
D1117
5.6V
D1110
30V
30V
EEPROM_WP
D1114
5.6V
OPT
OPT
DSUB_G
C1108
100pF
50V
50V
C1126
68pF
50V
68pF
50V
OPT
D1111
30V
30V
R1126
22
22
DSUB_HSYNC
C1128
18pF
18pF
50V
ISP_RXD
R1103
470K
470K
PC_R_IN
2:S16
R1140
4.7K
4.7K
DSUB_R
D1101
5.6V
OPT
OPT
AMOTECH
C1117
0.1uF
16V
0.1uF
16V
R1102
470K
470K
IC1105
AT24C02BN-10SU-1.8
3
A2
2
A1
4
GND
1
A0
5
SDA
6
SCL
7
WP
8
VCC
JK1103
JST1223-001
1
GND
2
VCC
3
VINPUT
4
FIX_POLE
C1129
0.1uF
16V
R1139
4.7K
+3.3V_Normal
C1121
100pF
50V
100pF
50V
R1147
1K
1K
C1123
OPT
OPT
OPT
ISP_TXD
DSUB_B
DSUB_VSYNC
D1109
30V
C1107
100pF
50V
D1102
5.6V
OPT
OPT
AMOTECH
C1124
OPT
OPT
OPT
C1122
68pF
50V
68pF
50V
OPT
+5V_Normal
R1143
22
22
D1115
ENKMC2838-T112
A1
C
A2
PC_L_IN
2:S16
R1113
0
0
IC1104
NL17SZ00DFT2G
3
GND
2
B
4
Y
1
A
5
VCC
DSUB_DET
D1112
30V
30V
R1148
0
R1150
0
R1146
10K
10K
R1127
0
OPT
0
OPT
C1131
0.1uF
16V
16V
R1141
22
22
R1152
4.7K
Q1103
MMBT3904-(F)
MMBT3904-(F)
E
B
C
HP_ROUT
2:X19
+3.5V_ST
R1130
10K
C1115
1000pF
50V
1000pF
50V
OPT
SIDE_HP_MUTE
C1116
1000pF
50V
1000pF
50V
OPT
+3.3V_Normal
HP_DET
R1129
10K
OPT
R1155
1K
1K
HP_LOUT
2:X19
Q1101
MMBT3904-(F)
E
B
C
Q1102
MMBT3904-(F)
E
B
C
Q1104
MMBT3904-(F)
MMBT3904-(F)
E
B
C
R1125
1K
1K
OPT
R1128
1K
OPT
R1133
75
75
R1135
75
75
R1137
75
JK3301
KJA-PH-0-0177
3
DETECT
4
L
5
GND
1
R
JK1102
PEJ027-01
6B
T_TERMINAL2
7B
B_TERMINAL2
5
T_SPRING
4
R_SPRING
7A
B_TERMINAL1
6A
T_TERMINAL1
3
E_SPRING
R1115
20K
C1106
100uF
16V
C1109
100uF
16V
C1104
10uF
10uF
10V
C1103
0.22uF
16V
R1100
HP_MUTE
HP_ROUT
HP_LOUT
+5V_EARPHONE
C1102
0.1uF
16V
0.1uF
16V
H/P_L
002:Y10
Q1100
2SC3052
E
B
C
R1104
10K
+5V_Normal
C1100
1uF
10V
10V
IC1100
TPA6110A2DGNRG4
3
SHUTDOWN
2
GND
4
IN2-
1
BYPASS
5
VO2
6
VDD
7
VO1
8
IN1-
C1110
1000pF
1000pF
OPT
+5V_EARPHONE
+3.5V_ST
H/P_R
002:Y10
+5V_EARPHONE
Q1105
2SC3052
E
B
C
C1105
10uF
10uF
10V
R1106
10K
R1118
1K
D1100
ENKMC2838-T112
A1
C
A2
R1101
10K
C1111
1000pF
1000pF
OPT
C1101
0.22uF
16V
R1117
1K
R1114
20K
R1105
10K
R1116
16K
R1109
16K
16K
R1108
15K
15K
R1107
15K
15K
R1110
10K
R1111
10K
R1119
0
0
1/10W
5%
5%
R1120
0
0
1/10W
5%
5%
COMMON AREA
5.15 Mstar Circuit Application
PC AUDIO
RGB PC
SPDIF OPTIC JACK
COMMON AREA
New Item Development
EARPHONE BLOCK
9
LD350
09.09.03
EARPHONE AMP
360mVrms(8mW) => 450mVrms(13mW)
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.
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.
RS-232C
R1285
100
OPT
R1281
100
L1209
BLM18PG121SN1D
C1234
0.1uF
16V
0.1uF
16V
R1302
220
R1282
100
R1299
220
+3.5V_ST
C1243
47pF
50V
47pF
50V
R1275
0
0
C1242
47pF
50V
47pF
50V
R1278
4.7K
C1229
0.33uF
C1239
220pF
50V
DBG_TX
R1279
4.7K
DBG_RX
R1276
0
0
C1235
220pF
50V
R1284
100
OPT
C1232
0.1uF
C1233
0.1uF
C1231
0.1uF
C1230
0.1uF
IC1201
MAX3232CDR
3
C1-
2
V+
4
C2+
1
C1+
6
V-
5
C2-
7
DOUT2
8
RIN2
9
ROUT2
10
DIN2
11
DIN1
12
ROUT1
13
RIN1
14
DOUT1
15
GND
16
VCC
D1236
30V
OPT
ADUC30S03010L
D1237
30V
OPT
ADUC30S03010L
IR_OUT
JK1201
SPG09-DB-009
1
2
3
4
5
6
7
8
9
10
TxD
RxD
male
Serial Port
RS-232C
RS-232C
LD350
09.09.03
10
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.
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.
SIDEAV_R_IN
SIDEAV_L_IN
D3302
5.6V
SIDE_AV_OPT
R3306
10K
SIDE_AV_OPT
R3308
12K
12K
SIDE_AV_OPT
SIDEAV_CVBS_IN
D3304
5.6V
SIDE_AV_OPT
R3307
10K
SIDE_AV_OPT
C3303
100pF
50V
SIDE_AV_OPT
L3303
BLM18PG121SN1D
SIDE_AV_OPT
D3301
30V
SIDE_AV_OPT
L3301
BLM18PG121SN1D
SIDE_AV_OPT
R3305
1K
1K
SIDE_AV_OPT
R3302
10K
SIDE_AV_OPT
C3302
100pF
50V
SIDE_AV_OPT
D3303
5.6V
SIDE_AV_OPT
+3.3V_Normal
R3304
470K
470K
SIDE_AV_OPT
R3303
470K
SIDE_AV_OPT
R3309
12K
SIDE_AV_OPT
L3302
BLM18PG121SN1D
SIDE_AV_OPT
C3301
100pF
SIDE_AV_OPT
C3304
100pF
OPT
SIDEAV_DET
R3301
75
SIDE_AV_OPT
JK3302
PPJ235-01
SIDE_AV_OPT
4A
[YL]O-SPRING
5A
[YL]E-LUG
3A
[YL]CONTACT
4B
[WH]O-SPRING
3C
[RD]CONTACT
4C
[RD]O-SPRING
5C
[RD]E-LUG
SIDE AV
(New Item Developmen H:9.2mm)
SIDE_AV
11
LD350
09.09.03
Click on the first or last page to see other 22LD350 (CHASSIS:LA04A) service manuals if exist.