LG 42LW650G/S/T/W Service Manual page 37

Full Scart(18 Pin Gender)
D2501
5.5V
EU
SHIELD
19
JP2501
AV_DET
18
D2502
COM_GND
5.5V
17
JP2502 EU
SYNC_IN
16
JP2503
SYNC_OUT
15
SYNC_GND
14
JP2504
RGB_IO
13
JP2505
R_OUT OPT
12 D2503
30V
R_GND
11
JP2506
G_OUT
10
G_GND
9
ID
JP2507 D2504
8
5.5V
B_OUT JP2508
EU
7
AUDIO_L_IN
6
B_GND JP2509
5
AUDIO_GND
D2505
4
5.5V
AUDIO_L_OUT
JP2510 EU
3
AUDIO_R_IN
JP2511
2
AUDIO_R_OUT
1
D2506
JP2512
5.5V
EU
DA1R018H91E
JK2501
EU
D2507
5.6V
OPT
D2508
5.6V
OPT
D2509
5.6V
OPT
D2510
5.6V
OPT
AUD_OUT >> EU/CHINA_HOTEL_OPT
5.6K R2573
AUD_OUT
+12V
SCART1_Lout_N
L2501
AUD_OUT
5.6K R2570
SCART1_Lout_P
AUD_OUT
C2501
0.1uF
50V 5.6K R2571
SCART1_Rout_P
AUD_OUT
AUD_OUT
5.6K R2572
SCART1_Rout_N
AUD_OUT
CLOSE TO soc
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 © 2011 LG Electronics. Inc. All rights reserved.
Only for training and service purposes
+3.3V_Normal
R2514
CLOSE TO JUNCTION
10K
EU
R2525
SC_DET/COMP2_DET
1K EU
EU
E
D2511 MMBT3906(NXP)
5.6V Q2501
B
C
EU
R2577 C2511 R2522 C
R2532
10
390
SC_CVBS_IN
0
EU C2536
EU 0.1uF
R2504 EU
47pF
EU E
75
50V CLOSE TO SOC
1% EU
EU R2533
390
Gain=1+Rf/Rg
Rf
Rg
75 R2513
EU
EU
C2515
100uF
+3.3V_Normal
16V
EU
EU
C
R2506
R2578 EU
75
10K
B Q2509
1%
2SC3052
E
0 EU
R2515
COMP2_Pr
R2507
75
1%
EU
0 EU
R2516
COMP2_Y
EU
R2508
75 1%
0 EU
R2517
COMP2_Pb
EU
R2509
75
1%
CLOSE TO JUNCTION
22 EU
R2530
EU
C2509
R2510
C2516
560pF
470K
100pF
50V
50V
EU
EU
22 EU
R2531
EU
R2511 C2510
470K
560pF CLOSE TO JUNCTION
C2517
50V
100pF
EU
50V
EU
BLM18PG121SN1D
L2508
EU
EU EU
C2518
C2522
1000pF 4700pF
50V
BLM18PG121SN1D
L2509
EU
EU
EU C2523
C2519
4700pF
0 R2534
1000pF
50V HOTEL_OPT
IC2501
LM324D
AUD_OUT
1K R2519 OUT1 OUT4
1 14
DTV/MNT_L_OUT
AUD_OUT
AUD_OUT
C2513
AUD_OUT IN1- IN4-
10uF 33K R2526
2 13
16V C2535
AUD_OUT
AUD_OUT 6800pF
C2520 R2528
33pF
IN1+ IN4+
10K
50V 3 12
AUD_OUT
VCC VEE/GND
4 11
IN2+ IN3+
5 10
AUD_OUT
IN2- IN3-
33K R2527
6 9
AUD_OUT
R2529
AUD_OUT 10K OUT2 OUT3
7 8
AUD_OUT C2521
R2518
33pF
1K
DTV/MNT_R_OUT
C2514
AUD_OUT
10uF
R2524 6800pF
16V
50V
AUD_OUT
+5V_Normal
IN CASE OF SMALL= 15V
+12V
EU
L2506
EU
R2545
EU EU EU
C2526 10K
C2525
R2536
0.1uF
470 0.1uF
50V 50V
IC2502
EU
EU NLASB3157DFT2G
Q2502 R2537
47K
2SC3052
EU SELECT
B
6
C2524
47uF
16V
VCC
5
EU A
4
EU R2538
R2535 15K
180
+3.3V_Normal
Selece = High ==> A = B1
SC_FB
EU Selece = Low
C
EU
R2581
1K B Q2510
2SC3052
E
D2513
30V
REC_8
EU
EU
R2539
9.1K
SC_ID
1/16W
1%
OPT EU
D2512 R2542
30V 1K C2528
1% 1uF
10V
EU
10K/1K to match ADC Full-Scale range
(1% of accruacy)
SC/COMP2_L_IN
SC/COMP2_R_IN
DTV/MNT_L_OUT
DTV/MNT_R_OUT
AUDIO_R
[SCART AUDIO MUTE]
DTV/MNT_L_OUT
EU
Q2503
2SC3052 EU EU
RT1P141C-T112
R2543
Q2505
2K
3
DTV/MNT_R_OUT 1
EU
2
Q2504
2SC3052 EU
R2544
2K
Q2502,Q2503
Q2504,Q2506
Q2507,Q2508
Q2501
Q2505
D2513
DTV_ATV_SELECT
B1
1
ATV_OUT
EU
GND
2
L2507
120-ohm
B0
3
BLM18PG121SN1D
NON_DTV_OUT
C2532 C2534
R2551
180pF 180pF
75
L2507-*1
50V 50V 1%
0
OPT OPT EU
DVT_OUT
CLOSE TO SOC
==> A = B0
CLOSE TO SOC
CLOSE TO JACK
TP2501
INCM_VID_SC C2533
0.1uF
R2549
16V
36
[SCART PIN 8]
OPT
R2552
+3.5V_ST 4.7K
R2548
10K
SC_RE1
EU
SCART_MUTE
SC_RE2
DUAL COMPONENT
1ST : 0TRIY80001A 2ND : 0TR387500AA
1ST : EBK61012701, 2ND : EBK58172301
1ST : 0TRIH80004A, 2ND : EBK61012501, 3RD : 0TR102009AM
1ST : T-BAT54_SUZHO, 2ND : 0DSON00138A
DTV/MNT_V_OUT
+12V
OPT
R2558
C
10K
B OPT
Q2508
2SC3052
OPT
R2561 E
12K
OPT
C
R2556
REC_8
B
1K
OPT
Q2507
E 2SC3052
C
OPT
B Q2506
2SC3052
OPT
R2557 E
1K
BCM35230
SCART 25
LGE Internal Use Only