19LD330, 19LD340, 19LD345 (CHASSIS:LP91H) - LG TV Service Manual (repair manual). Page 21

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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.
TXCE1-
TXCE1+
TXCE0-
TXCE0+
TXCE3+
TXCE3-
TXCLKE-
TXCLKE+
TXCE2-
TXCE2+
TXCE0+
TXCE0-
TXCE1+
TXCE1-
TXCE2+
TXCE2-
TXCLKE+
TXCLKE-
TXCE3+
TXCE3-
TXCO3-
TXCO3+
TXCLKO-
TXCLKO+
TXCO2-
TXCO2+
TXCE2+
TXCE2-
TXCLKE+
TXCLKE-
TXCE3+
TXCE3-
TXCO1-
TXCO1+
TXCE1+
TXCE1-
TXCO0-
TXCO0+
TXCE0+
TXCE0-
TXCE4+
TXCE4-
TXCO4+
TXCO4-
C402
47pF
50V
READY
R413
22
IR-OUT
C400
470pF
50V
NON_19_22INCH
KEY1
ZD400
5.6B
FHD BRIDING
L405
120ohm
NON_19_22INCH
ZD401
5.6B
FHD BRIDING
+3.5V_MST
ZD402
5.6B
READY
L401
FHD BRIDING
500-ohm
IR_OUT
R412
10K
IR-OUT
Q401
2SC3052
IR-OUT
E
B
C
L400
FHD BRIDING
500-ohm
SUB_SCL
L403
120ohm
KEY2
Q403
2SC3052
IR-OUT
E
B
C
+3.5V_MST
IR
SUB_SDA
C407
0.1uF
26_32INCH
+3.3V_MST
+3.5V_MST
C408
0.1uF
26_32INCH
L404
120ohm
NON_19_22INCH
+3.3V_MULTI_MST
C406
0.1uF
50V
READY
C404
47uF
16V
KEY2
C410
100pF
50V
19_22INCH
KEY1
C409
100pF
50V
19_22INCH
+5V_+12V_LCD
TXCE0+,TXCE0-,TXCE1+,TXCE1-,TXCE2+,TXCE2-,TXCE3+,TXCE3-,TXCE4+,TXCE4-,TXCLKE+,TXCLKE-
+3.3V_MULTI_MST
OPC_EN
E-DIM
OPC_OUT
C405
100pF
50V
C401
100pF
50V
L408
19_22INCH
L409
19_22INCH
L407
120ohm
L402
120ohm
R406
4.7K
R409
4.7K
R407
10K
IR-OUT
R410
10K
IR-OUT
R401
47K
IR-OUT
R420
4.7K
JEIDA
R421
0
VESA
R423
0
READY
R416
0
OPC_ENABLE
R422
470
OPC_ENABLE
L406
120-ohm
P402
FF10001-30
26_32INCH_HD_WAFER
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
+3.5V_MST
Q404
RT1C3904-T112
OPC_ENABLE
E
B
C
R424
1K
OPC_ENABLE
R400
10K
Q400
2SC3052
E
B
C
+3.3V_MULTI_MST
R405
10K
R403
10K
Q402
2SC3052
E
B
C
+3.5V_MST
R408
10K
R411
4.7K
R404
0
READY
R402
0
READY
C403
470pF
50V
NON_19_22INCH
SUB_SCL
LED_R
P404
12507WR-03L
19_22INCH
1
KEY1
2
KEY2
3
GND
4
P403
FF10001-30
19_22INCH
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
+5V_+12V_LCD
TXCE0+,TXCE0-,TXCE1+,TXCE1-,TXCE2+,TXCE2-,TXCE3+,TXCE3-,TXCE4+,TXCE4-,TXCLKE+,TXCLKE-
SMALL_NC2
SMALL_NC1
SMALL_OPC_OUT
SMALL_NC3
SMALL_OPC_EN
SMALL_NC4
R414
0
HD_normal
R418
0
OPC_ENABLE
R419
0
LVDS_SEL
R415
0
HD_normal
SMALL_OPC_EN
SMALL_NC3
SMALL_NC4
SMALL_NC1
SMALL_OPC_OUT
SMALL_NC2
P400
12507WR-12L
1
SCL
2
SDA
3
GND
4
KEY1
5
KEY2
6
5V_ST
7
GND
8
LED_B/LG_LOGO
9
IR
10
GND
11
ST_3.3V
12
LED_R/BUZZ
13
.
SMALL_NC5
SMALL_NC5
P401
TF05-51S
51P_FFC_WAFER_FHD
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
TXCE0+,TXCE0-,TXCE1+,TXCE1-,TXCE2+,TXCE2-,TXCE3+,TXCE3-,TXCE4+,TXCE4-,TXCLKE+,TXCLKE-,TXCLKO+,TXCLKO-,TXCO0+,TXCO0-,TXCO1+,TXCO1-,TXCO2+,TXCO2-,TXCO3+,TXCO3-,TXCO4+,TXCO4-
+5V_+12V_LCD
R431
0
SHARP 42FHD
R432
0
NON_Small CMO
R425
0
HD_normal
R429
0
AUO/SHARP 42FHD
R428
0
AUO/SHARP 42FHD
R427
0
AUO/SHARP 42FHD
R426
0
AUO/SHARP 42FHD
+3.3V_MULTI_MST
R433
4.7K
READY
R434
0
NON CMO FHD
R435
0
NON CMO 42FHD
R436
0
NON CMO 42FHD
R437
0
NON CMO 42FHD
R438
0
NON CMO 42FHD
R417
0
OPC_ENABLE
R439
0
READY
R440
4.7K
READY
R441
0
READY
+3.3V_MULTI_MST
R442
4.7K
SHARP 42FHD
R443
0
AUO FHD
+3.3V_MULTI_MST
R444
0
NON AUO 42FHD
LVDS,CTR KEY
4  9
2009/12/23
CONTROL KEY
OPC_EABLE
OPC_OUTPUT
External VBR
PANEL WAFER
IR
**OPC_ENABLE : USE LGD Module
LD330/LD420
LP91H
EAX61532102
FHD
26inch AUO : OPEN
26inch SHARP : Pull down
51
47
46
45
44
43
42
41
28
SHARP 32INCH FHD
R444 R431 R442
R443 R421
R420 R416 R417 R418
R423
R438 R429
O
X
X
X
X
X
X
O
R428
27
26
R437
R434
25
R433 R427
12
R426
11
10
R436
9
R435
O
R434
O
O
VESA
IPS 32INCH FHD
O
X
X
X
VESA
X
X
X
O
X
X
O
R434
X
X
O
O
SHARP 32INCH FHD
O
O
O
O
Display
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