LG 37LV470S Service Manual page 33

Full Scart
D4504
AV_DET
5.5V
22
COM_GND
21
SYNC_IN
20
SYNC_OUT
19
D4505
SYNC_GND2
5.5V
18
SYNC_GND1
17
RGB_IO
16 OPT
R_OUT D4506
C4539
30V 100pF
15
RGB_GND
50V
14
R_GND
13
D2B_OUT
D4501
12
G_OUT
5.5V
11
D2B_IN
10
G_GND
9
ID
D4502
8
5.5V
B_OUT
7
AUDIO_L_IN
6
B_GND
5
D4503
AUDIO_GND
5.5V
4
AUDIO_L_OUT
3
AUDIO_R_IN
2
AUDIO_R_OUT
1
PSC008-01
JK4501
D4507
5.6V
OPT
D4508
5.6V
OPT
D4509
5.6V
OPT
D4510
5.6V
OPT
AUD_OUT >> EU/CHINA_HOTEL_OPT
5.6K R4501
+12V
SCART1_Lout_N
5.6K R4502
SCART1_Lout_P
C4501
0.1uF
5.6K R4503
50V SCART1_Rout_P
5.6K R4504
SCART1_Rout_N
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
DUAL COMPONENT
Q4502,Q4503
Q4504,Q4506
1ST : 0TRIY80001A 2ND : 0TR387500AA
Q4507,Q4508
Q4501 1ST : EBK61012701, 2ND : EBK58172301
1ST : 0TRIH80004A, 2ND : EBK61012501, 3RD : 0TR102009AM
Q4505
D4513 1ST : T-BAT54_SUZHO, 2ND : 0DSON00138A
+3.3V_Normal
R4513
10K
R4548 1K
SC_DET/COMP2_DET
E
D4511 MMBT3906(NXP)
5.6V Q4501
B
C
R4550 C4518 C
R4549 0 R4520
10
390
SC_CVBS_IN
C4507
0.1uF
R4511 47pF
E
75
50V CLOSE TO SOC
1%
R4521
390
Gain=1+Rf/Rg
Rf
75 1% R4512
Rg
C4513
100uF
16V
+3.3V_Normal
R4508
75
1%
L4508
CM2012FR27KT
SC_R/COMP2_Pr
C4533 C4534
R4505
27pF 27pF
75
R4534
1%
50V 50V 10K B
L4509
CM2012FR27KT
SC_G/COMP2_Y
C4536
C4535
27pF
R4506
27pF
50V
75 1%
50V
L4510
OPT
CM2012FR27KT
D4513
SC_B/COMP2_Pb
C4537 C4538 BAT54_SUZHO
30V
27pF 27pF
R4507
75 50V 50V
1%
R4522
FOR EMI 9.1K
OPT
D4512
30V
C4540 1uF R4552 22
C4505 C4514
R4509
560pF 560pF
470K
50V 50V
C4541 1uF R4551 22
R4510
C4506
470K CLOSE TO JUNCTION C4515
560pF
560pF
50V
50V
BLM18PG121SN1D
L4504
C4516
C4521
4700pF
1000pF
50V
BLM18PG121SN1D
L4505
C4522
C4517
4700pF
1000pF
50V
IC4501
LM324D
1K R4515 OUT1
1 14
DTV/MNT_L_OUT
C4508
IN1-
10uF 33K R4516
2 13
C4511
16V
6800pF C4519 R4518
33pF
IN1+
10K
50V 3 12
VCC
4 11
IN2+
5 10
IN2-
33K R4517
6 9
R4519
10K
OUT2
7 8
C4520
R4514
33pF
1K
DTV/MNT_R_OUT
C4510
10uF
C4512 6800pF
16V
50V
+5V_Normal
+12V
L4506
R4530
10K
R4524 C4525 C4526
0.1uF
470 0.1uF
50V 50V
NLASB3157DFT2G
Q4502 R4526
2SC3052 47K
SELECT
B
6
C4523
47uF
16V
VCC
5
A
4
R4527
R4523 15K
180
+3.3V_Normal
Selece = High ==> A = B1
Selece = Low
SC_FB
C
R4546
1K
B Q4510
2SC3052
C
E
Q4509
2SC3052
E
REC_8
SC_ID
R4525 C4524
1K
1uF
10V
SC/COMP2_L_IN
SC/COMP2_R_IN
DTV/MNT_L_OUT
DTV/MNT_R_OUT
[SCART AUDIO MUTE]
OUT4
IN4-
IN4+
VEE/GND
IN3+
DTV/MNT_L_OUT
Q4503
IN3-
2SC3052
RT1P141C-T112
R4528
Q4505
2K
OUT3
3
DTV/MNT_R_OUT
2
Q4504
2SC3052
R4529
2K
DTV_ATV_SELECT
IC4502
B1
1
ATV_OUT
GND
2
R4553
B0 0
3
1/10W
5% OPT
OPT R4533
C4532
75
C4531
180pF 1%
180pF
50V
50V
==> A = B0
CLOSE TO SOC
CLOSE TO SOC
CLOSE TO JACK
TP4501
INCM_VID_SC
R4532
16V 36
0.1uF
C4528
[SCART PIN 8]
+3.5V_ST
R4531
10K
SC_RE1
SCART_MUTE
1
SC_RE2
DTV/MNT_V_OUT
+12V
OPT
R4538
10K C
OPT
R4535
B OPT
4.7K
Q4508
2SC3052
OPT
R4541 E
12K
OPT C
R4536
REC_8
B
1K
OPT
Q4507
E
2SC3052
C
OPT
B Q4506
2SC3052
OPT
R4537 E
1K
BCM35230
LV7 EU SCART 45 50
LGE Internal Use Only