LG 19LD330 / 19LD340 / 19LD345 (CHASSIS:LP91H) Service Manual ▷ View online
- 17 -
300
200
803
802
51
1
510
400
801
530
540
401
120
122
500
A2
A5
A21
LV
1
402
910
900
EXPLODED VIEW
Many electrical and mechanical parts in this chassis have special safety-related characteristics. These
parts are identified by in the Schematic Diagram and EXPLODED VIEW.
It is essential that these special safety parts should be replaced with the same components as
recommended in this manual to prevent X-RADIATION, Shock, Fire, or other Hazards.
Do not modify the original design without permission of manufacturer.
parts are identified by in the Schematic Diagram and EXPLODED VIEW.
It is essential that these special safety parts should be replaced with the same components as
recommended in this manual to prevent X-RADIATION, Shock, Fire, or other Hazards.
Do not modify the original design without permission of manufacturer.
IMPORTANT SAFETY NOTICE
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.
CVBS_LIN
ZD100
SD05
ZD103
SD05
ZD105
SD05
CVBS_VIN
CVBS_RIN
ZD104
SD05
ZD101
SD05
ZD102
SD05
D101
30V
D100
30V
D104
30V
D105
30V
30V
COMP2_Y
COMP2_PB
COMP2_PR
COMP2_L
COMP2_R
R109
75
R108
75
R107
75
R104
220K
220K
R118
12K
R117
12K
R119
12K
R120
12K
12K
R113
10K
R115
10K
R116
10K
R100
220K
220K
R111
220K
220K
R112
220K
220K
R110
75
R114
10K
JK101
PPJ238-01
5D
[GN2]O-SPRING
6D
[GN2]E-LUG
4D
[GN2]CONTACT
7E
[BL2]E-LUG-S
5E
[BL2]O-SPRING
7F
[RD2]E-LUG-S
5F
[RD2]O-SPRING_1
5G
[WH2]O-SPRING
4H
[RD2]CONTACT
5H
[RD2]O-SPRING_2
6H
[RD2]E-LUG
6A
[YL1]E-LUG
5A
[YL1]O-SPRING
4A
[YL1]CONTACT
5B
[WH1]O-SPRING
4C
[RD1]CONTACT
5C
[RD1]O-SPRING
6C
[RD1]E-LUG
R121
75
JP102
Q102
RT1C3904-T112
E
B
C
R105
470
MNT_VOUT_T
P_12V_SMALL_15V
JP101
R101
220
R102
402
READY
R103
68
Q101
ISA1530AC1
E
B
C
R106
47
1 9
2009/12/23
INPUT1
EAX61532102
LP91H
LD330/LD420
COMPONENT / AV IN
GAIN X 4
U
S
B
D
O
W
N
S
T
R
E
A
M
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.
SIDE_LIN
SIDE_RIN
ZD203
5.6B
SIDE_AV
SIDE_AV
SIDE_V
ZD202
5.6B
SIDE_AV
IR_OUT
+3.5V_MST
TXD
R204
4.7K
4.7K
IC200
ST3232CDR
3
C1-
2
V+
4
C2+
1
C1+
6
V-
5
C2-
7
T2OUT
8
R2IN
9
R2OUT
10
T2IN
11
T1IN
12
R1OUT
13
R1IN
14
T1OUT
15
GND
16
VCC
R205
4.7K
4.7K
RXD
+3.5V_MST
ZD200
SD05
DSUB_SDA
PC_VS
ZD201
SD05
PC_B
DSUB_SDA
PC_AUD_R
PC_G
DSUB_SCL
IC201
CAT24C02WI-GT3
3
A2
2
A1
4
VSS
1
A0
5
SDA
6
SCL
7
WP
8
VCC
DDC_WP
PC_HS
PC_AUD_L
DSUB_SCL
PC_R
D202
30V
CDS3C30GTH
D203
30V
CDS3C30GTH
D200
30V
D201
30V
D206
30V
SIDE_AV
D205
30V
SIDE_AV
D204
30V
D209
30V
C203
0.1uF
16V
0.1uF
16V
C200
0.1uF
16V
C201
0.1uF
16V
0.1uF
16V
C202
0.1uF
16V
C205
0.01uF
0.01uF
R202
100
R203
100
R227
75
SIDE_AV
R223
220K
220K
READY
R222
220K
220K
READY
R226
12K
SIDE_AV
R228
12K
12K
SIDE_AV
R211
75
R212
75
R213
75
R214
4.7K
4.7K
R215
4.7K
4.7K
R231
220K
R232
220K
R233
10K
R234
10K
R235
12K
R236
12K
R220
4.7K
4.7K
R221
4.7K
R216
100
100
R217
100
100
R218
100
100
C208
0.1uF
50V
0.1uF
50V
OCP_READY
C209
10uF
16V
10uF
16V
OCP_READY
L200
120OHM
OCP_READY
+5V_USB
R209
1K
OCP_READY
R210
4.7K
4.7K
OCP_READY
R237
0
Non_OCP
C210
10uF
6.3V
10uF
6.3V
R207
68
68
R208
68
C213
68pF
50V
68pF
50V
C211
68pF
50V
68pF
50V
R219
4.7K
4.7K
READY
L201
500
C212
220uF
16V
220uF
16V
C214
100uF
16V
100uF
16V
D213
OCP_READY
A
AC
C
R238
510
OCP_READY
R224
10K
SIDE_AV
R225
10K
SIDE_AV
JK200
SPG09-DB-009
1
2
3
4
5
6
7
8
9
10
JK201
PPJ235-01
SIDE_AV
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
JK202
SPG09-DB-010
6630TGA004Q
RED
1
GREEN
2
BLUE
3
GND_1
4
DDC_GND
5
RED_GND
6
GREEN_GND
7
BLUE_GND
8
NC
9
SYNC_GND
10
GND_2
11
DDC_DATA
12
H_SYNC
13
V_SYNC
14
DDC_CLOCK
15
SHILED
16
JK203
PEJ027-01
PEJ027-01
6B
T_TERMINAL2
7B
B_TERMINAL2
5
T_SPRING
4
R_SPRING
7A
B_TERMINAL1
6A
T_TERMINAL1
3
E_SPRING
D211
ENKMC2838-T112
A1
C
A2
+5V_MULTI
R200
0
0
D207
30V
D208
30V
D210
30V
USB_DN
USB_DP
ZD204
30V
READY
ZD205
30V
READY
JK205
KJA-UB-0-0037
REAR_USB
1
2
3
4
5
R229
0
REAR_USB
USB_DL_P
R230
0
REAR_USB
USB_DL_N
USB_DL_P
USB_DL_N
IC202
AP2191SG-13
3
IN_2
2
IN_1
4
EN
1
GND
5
FLG
6
OUT_1
7
OUT_2
8
NC
+3.5V_MULTI
JK204
KJA-UB-4-0004
SIDE_USB
1
2
3
4
5
2 9
INPUT2
2009/12/23
USB
It’s possibel to 27~47ohm
** 1A Design
SIDE AV
RS-232C
PC EDID
PC SOUND
Close to SIDE_USB
PC
LD330/LD420
LP91H
EAX61532102
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.
+5V_HDMI_2
HPD_MST_2
TMDS2_RX2-
CEC
TMDS2_RXC-
TMDS2_RXC-
TMDS2_RXC+
TMDS1_RXC-
TMDS2_RX0+
+5V_HDMI_2
HPD_MST_1
CEC
TMDS1_RX2+
TMDS2_RX1+
+5V_MULTI
+5V_HDMI_1
TMDS2_RX0-
TMDS1_RX1-
TMDS2_RX1-
TMDS1_RX2-
+5V_MULTI
+5V_HDMI_1
TMDS1_RX0-
TMDS1_RX1+
TMDS1_RX0+
TMDS2_RX2+
TMDS1_RXC+
DDC_SDA2
DDC_SCL2
DDC_SDA1
DDC_SCL1
JP301
JP300
JP302
JP303
Q301
2SC3875S
RT1C3904-T112
E
B
C
Q300
2SC3875S
RT1C3904-T112
E
B
C
D300
KDS184S
KDS184S
A
1
C
A
2
D301
KDS184S
KDS184S
A
1
C
A
2
IC301
CAT24C02WI-GT3
3
A2
2
A1
4
VSS
1
A0
5
SDA
6
SCL
7
WP
8
VCC
IC300
CAT24C02WI-GT3
3
A2
2
A1
4
VSS
1
A0
5
SDA
6
SCL
7
WP
8
VCC
DDC_WP
DDC_WP
BSS83
Q303
READY
S
B
D
G
CEC
+3.3V_MST
CEC_C
D304
30V READY
CDS3C30GTH
D303
30V
MMBD301LT1G
READY
R301
10K
R303
1K
R300
10K
R302
1K
R315
68K
READY
R313
0
R305
100
R304
100
C301
0.01uF
0.01uF
R331
100
R306
100
R307
100
C302
0.01uF
0.01uF
R327
100
R308
10K
R310
10K
R309
10K
R311
10K
R316
56K
READY
JK302
YKF45-7058V
14
NC
13
CEC
5 DATA1_SHIELD
20
SHIELD
12
CLK-
11
CLK_SHIELD
2 DATA2_SHIELD
19
HPD
18
+5V_POWER
10 CLK+
4 DATA1+
1 DATA2+
17
DDC/CEC_GND
9 DATA0-
8 DATA0_SHIELD
3 DATA2-
16
SDA
7 DATA0+
6 DATA1-
15
SCL
JK301
YKF45-7058V
14
NC
13
CEC
5
DATA1_SHIELD
20
SHIELD
12
CLK-
11
CLK_SHIELD
2
DATA2_SHIELD
19
HPD
18
+5V_POWER
10
CLK+
4
DATA1+
1
DATA2+
17
DDC/CEC_GND
9
DATA0-
8
DATA0_SHIELD
3
DATA2-
16
SDA
7
DATA0+
6
DATA1-
15
SCL
R319
10K
10K
+5V_HDMI_3
+5V_MULTI
TMDS3_RX1-
DDC_SCL3
HPD_MST_3
Q302
2SC3875S
RT1C3904-T112
E
B
C
TMDS3_RX0+
+5V_HDMI_3
R312
10K
DDC_WP
R318
100
TMDS3_RXC+
JK303
KJA-ET-0-0032
14
NC
13
CEC
5
DATA1_SHIELD
20
JACK_GND
12
CLK-
11
CLK_SHIELD
2
DATA2_SHIELD
19
HPD
18
+5V_POWER
10
CLK+
4
DATA1+
1
DATA2+
17
DDC/CEC_GND
9
DATA0-
8
DATA0_SHIELD
3
DATA2-
16
SDA
7
DATA0+
6
DATA1-
15
SCL
JP305
TMDS3_RXC-
DDC_SDA3
R320
10K
10K
R314
1K
TMDS3_RX1+
CEC
TMDS3_RX2+
R317
100
JP304
C300
0.01uF
25V
0.01uF
25V
TMDS3_RX2-
R329
100
IC302
CAT24C02WI-GT3
3
A2
2
A1
4
VSS
1
A0
5
SDA
6
SCL
7
WP
8
VCC
D302
KDS184S
A
1
C
A
2
TMDS3_RX0-
HDMI
3 9
2009/12/23
OPTION
SW_HPD : USE SW HPD (Default)
MST_HPD : USE MST HPD
LD330/LD420
LP91H
EAX61532102
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