LG 26LD330 Service Manual page 21

EAX61532102
LP91H
TXCE0+,TXCE0-,TXCE1+,TXCE1-,TXCE2+,TXCE2-,TXCE3+,TXCE3-,TXCE4+,TXCE4-,TXCLKE+,TXCLKE-,TXCLKO+,TXCLKO-,TXCO0+,TXCO0-,TXCO1+,TXCO1-,TXCO2+,TXCO2-,TXCO3+,TXCO3-,TXCO4+,TXCO4-
IR
FHD BRIDING
L400 500-ohm
FHD BRIDING
ZD400
FHD BRIDING
5.6B
L401 500-ohm
FHD BRIDING
ZD401
5.6B
NON_19_22INCH
L404 120ohm
NON_19_22INCH
L405 120ohm
NON_19_22INCH NON_19_22INCH
C400 C403
470pF 470pF
50V 50V
P400
12507WR-12L
+3.5V_MST
L406
SCL
1
120-ohm
C404
47uF
SDA
16V
2
+3.3V_MULTI_MST
GND
3
KEY1
4
L407
KEY2
5 120ohm
C405
100pF
50V
5V_ST
6
Q400
2SC3052
GND
7
LED_B/LG_LOGO
8
IR L403
9
READY READY
READY 120ohm
ZD402 C406
C402
0.1uF
GND 5.6B
47pF
10 50V
50V
ST_3.3V
11
LED_R/BUZZ
12
13
.
L402
C401 120ohm
100pF
50V
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.
Copyright © 2010 LG Electronics. Inc. All rights reserved.
Only for training and service purposes
SUB_SCL
SUB_SDA +3.3V_MST
R406 R409
4.7K 4.7K
KEY1
KEY2
26_32INCH 26_32INCH
C407 C408
0.1uF 0.1uF
FHD
R400
10K
READY
R404
0
C R405
SUB_SCL
B
10K
E
IR
+3.5V_MST
IR-OUT
+3.5V_MST R412
10K IR-OUT
R413
IR_OUT
IR-OUT
R407 22
IR-OUT
10K
C
R410
IR-OUT
B
2SC3052
10K
E
IR-OUT Q403
R401 C IR-OUT
2SC3052
B
47K E Q401
+3.5V_MST
+3.5V_MST
R403
10K
R411
4.7K
C
R408
LED_R
B
Q402 10K
E
2SC3052
READY
R402
0
CONTROL KEY
+5V_+12V_LCD
51P_FFC_WAFER_FHD
P401
TF05-51S
1
2
3
4
5
6
7
8
R435 0
9
NON CMO 42FHD
R436 0
10
NON CMO 42FHD
TXCE0+
R426 0
11
AUO/SHARP 42FHD
TXCE0-
R427 0
12
AUO/SHARP 42FHD TXCE1+
13
TXCE1-
14
15
TXCE2+
16
TXCE2-
17
18
TXCLKE+
19
TXCLKE-
20
TXCE3+
21
TXCE3-
22
+3.3V_MULTI_MST
TXCE4+
23
READY
TXCE4-
24 R433
4.7K
25
NON CMO FHD
R437 0
26
R434
NON CMO 42FHD TXCO0+ 0
R428 0
27
AUO/SHARP 42FHD
TXCO0-
R429 0
28
AUO/SHARP 42FHD
TXCO1+
29
TXCO1-
30
31
TXCO2+
32
TXCO2-
33
34
TXCLKO+
35
TXCLKO-
36
TXCO3+
37
TXCO3-
38
TXCO4+
39
TXCO4-
40
R438 0
41
NON CMO 42FHD
42
43
44
45
46
R431 0
47 +3.3V_MULTI_MST +3.3V_MULTI_MST
SHARP 42FHD
48
SHARP 42FHD READY
49 R442 R440
4.7K 4.7K
READY
R439 0
50
AUO FHD READY
R444 0
R443 R441
51
0 0
NON AUO 42FHD
52
19_22INCH
P404
12507WR-03L
19_22INCH
L408 KEY1
1
KEY1
L409
KEY2
2
KEY2
19_22INCH 19_22INCH 19_22INCH
C409 C410 GND
3
100pF 100pF
50V 50V
4
PANEL WAFER
TXCE0+,TXCE0-,TXCE1+,TXCE1-,TXCE2+,TXCE2-,TXCE3+,TXCE3-,TXCE4+,TXCE4-,TXCLKE+,TXCLKE-
P402 SMALL_NC5
FF10001-30 SMALL_NC1
26_32INCH_HD_WAFER
SMALL_NC2
SMALL_OPC_OUT
HD_normal
R425 0
1
HD_normal
R414
2
0
3
4
5
6 TXCE3-
7 TXCE3+
8
9 TXCLKE-
10 TXCLKE+
11
12 TXCE2-
13 TXCE2+
14
15 TXCE1-
16 TXCE1+
17
18 TXCE0-
19
TXCE0+
20
OPC_ENABLE
R418 0
21
LVDS_SEL
R419 0
22
HD_normal
R415
23
0
24
+5V_+12V_LCD
25
26
27
28
29
30
31
SMALL_OPC_EN
SMALL_NC3
SMALL_NC4
OPC_ENABLE
OPC_OUTPUT
R417 0
OPC_ENABLE
R416 0
External VBR
R443 R421 R423
R444 R431 R442 R420 R416 R417 R418 R438 R429 R428
51 47 46 45 44 43 42 41 28 27 26
X
SHARP 32INCH FHD O X X X X X O
O O
VESA
X
IPS 32INCH FHD
O X X X X X O X X
VESA
SHARP 32INCH FHD
LVDS,CTR KEY
TXCE0+,TXCE0-,TXCE1+,TXCE1-,TXCE2+,TXCE2-,TX
P403 +5V_+12V_LCD
FF10001-30
1 19_22INCH
2
3
4
5
NON_Small CMO
R432
6
0
7
8
9
10
11
12
TXCE3-
13
TXCE3+
14
15
TXCLKE-
16
TXCLKE+
17
18
TXCE2-
19
+3.3V_MULTI_MST
TXCE2+
20
26inch AUO : OPEN
JEIDA 26inch SHARP : Pull down
21
R420
4.7K TXCE1-
22
TXCE1+
23
VESA
R421
0
24
TXCE0-
25
TXCE0+
26
27
28
SMALL_OPC_EN
29
SMALL_NC3
30
SMALL_NC4
31
+3.3V_MULTI_MST
OPC_ENABLE
R422
470
OPC_ENABLE
RT1C3904-T112
Q404 OPC_ENABLE
OPC_OUT
READY R424 OPC_EABLE
C
R423
OPC_EN
0 E B
E-DIM 1K
**OPC_ENABLE : USE LGD Module
R434
R437 R433 R427 R426 R436 R435
25 12 11 10 9
O R434 O O
O O
O R434 X X O O
LD330/LD420 2009/12/23
4 9
LGE Internal Use Only
SMALL_NC5
SMALL_NC1
SMALL_NC2
SMALL_OPC_OUT