LG 42LD460 Service Manual page 34

MLB-201209-0120P-N2 Adapter
NON_Adapter
P7500
SMAW200-12
+15V
1
+15V
2
GND
3
GND
4
+3.5V_ST
5
+3.5V_ST
6
GND
7
OLP
8
INV_ON
9
0 R7506
P_DIM
10
C7507
R7505
1uF
4.7K A_DIM 0
A_DIM 6.3V
11
OPT
C7506
NC 0
1uF
12
6.3V
OPT
Adapter
JK7500
JPD003N-M432-4F
24V
SW
C7580
C7502
68uF
0.1uF
35V
50V
GND
+24V_LED_driver
Adapter
P7501
SM14B-SRSS-TB
24V
1
C7927
C7928
0.1uF
24V 0.01uF
2
50V
50V
24V
3
24V
4
24V
5
GND
6
GND
7
GND
8
GND
9
GND
10
Adapter_AUO
R7587
NC
11
0
INV_ON
12
R7541 0
PWM_DIM
13
Adapter_LGD
R7579
ERROR_OUT
14
0
15
Adapter_LGD
R7580
GND
R7549
0
OPT
0
Adapter_AUO
+12V/+15V To Tuner
IC7511
MP8706EN-C247-LF-Z
IN GND
1 8
C7921
1uF
SW_1 VCC
2 7 50V
C7910
10uF 3A R7851
SW_2 FB 10K
25V
3 6
C7920
0.1uF POWER_ON/OFF2_2
BST EN/SYNC
4 5
R7850 R7852
22 10K
L7911
3.6uH
NR8040T3R6N
Vout=(1+R1/R2)*0.8
+12V/+15V +5V_USB
IC7500
MP8706EN-C247-LF-Z
IN GND
1 8
C7508
1uF
SW_1 VCC
2 7 50V
C7500
10uF 3A R7509
SW_2 FB 10K
25V
3 6
C7504
0.1uF
POWER_ON/OFF2_1
BST EN/SYNC
4 5
R7502 R7510
22 1/10W 10K
L7501
3.6uH
NR8040T3R6N
Vout=(1+R1/R2)*0.8
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.
All manuals and user guides at all-guides.com
+5V_Normal
5V_PANEL
+24V/+15V +24V_LED
L7504
Adapter
L7503 L7912
MLB-201209-0120P-N2 MLB-201209-0120P-N2
4A -> 3A modify 090916
C7514 C7517
NON_Adapter
68uF
0.1uF
35V
50V
+3.5V_ST
L7502
MLB-201209-0120P-N2
NON_Adapter
NON_Adapter
C7511
C7509 NON_Adapter
C7515
0.1uF 0.1uF
68uF
16V 16V
35V
NON_Adapter
PANEL_CTL
OLP
PWM_DIM
+3.3V_Normal
3.3K -> 1K (threshold voltage up)
+3.5V_ST
OPC_OUT
R7507 R7514
1K
OPT
OPC_OUT R7516
R7508
10K
OPT
C
R7511 R7515
INV_CTL
10K
B
6.8K
OPT Q7502
E 2SC3052 R7517
10K
OPT
Placed on SMD-TOP
C IN
+24V/+15V
AO3407A Vgs : 10.8V(24V input)
AO3407A Vgs : 8.3V(15V input)
C7501
0.1uF
50V
ERROR_OUT
R7500
10K
Adapter
POWER_ON/OFF2_2
R7832
10K
NON_Adapter
RL_ON
+5V_General
MAX 300mA
+15V Control
OPT
+3.5V_Normal
C7913
OPT
100pF
C7914
50V
100pF C7915 C7918 C7919
R1 22uF
0.1uF 0.1uF
50V
10V
16V 16V
C7553
0.1uF
090916 16V
R2
+5V_USB
MAX 2000mA
OPT
C7510
OPT
100pF
C7512
50V
100pF C7513 C7516 C7518
R1 22uF
0.1uF 0.1uF
50V
10V
16V 16V
090916
R2
C IN
+12V/+15V
PANEL_POWER
12V_PANEL
C7529
C7525 C7526
10uF
0.01uF 0.1uF
25V 16V
16V
Q7506
OPT
AO3407A
5V_PANEL
R7530 C7531
R7530-*1
33K 4.7uF G
22K
R7523
12V_PANEL 16V
22K
C7541
5V_PANEL
R7531
1uF
R7531-*1
5.6K
25V
2.7K 12V_PANEL OPT
OPT
C
R7522
10K
B Q7505
2SC3052
C
R7521
E
R7527
10K
B Q7503
22K
2SC3052
E
S7 DDR 1.5V
+3.5V_ST
Replaced Part
R7575 R1
L7506
10K 1%
IC7504
MP2212DN
Close to IC
10K
R7578
FB EN/SYNC
1 8
R7574
R2
L7516
11K
GND SW_2
5% 2 7
3A
3.6uH
IN SW_1
3 6
BS VCC
4 5 C7575
C7572
0.1uF
22uF
50V
10V
R7577 0
R7576
10 C7574
1%
1uF
10V
+3.5V_ST
AMP_VCC +12V/+15V
C7503
R7503
2.2uF 22K
C7555
50V C7554
0.1uF
0.01uF
S
G
L7913
R7501
CPI2520NHL3R3ME
27K Q7501
Adapter R7572
D
AO3407A 0
C NON_Adapter
L7914
BLM18PG121SN1D
B
R7545
Q7500
NON_Adapter 10K B
C7505
1608 2A
E
0.01uF C7933
50V POWER_ON/OFF2_2
C7932 0.01uF R7551
3.3uF 50V 22K
50V
AO3407A Vgs : 10.8V
+3.5V_Normal
+24V_LED
+2.5V
C7925
2.2uF
IC7505
50V
C7924
AZ2940D-2.5TRE1 +2.5V_Normal Adapter
0.1uF
50V
VIN VOUT Adapter
1 3
Vd=550mV R7861
27K
2
Adapter
GND
R7860
C
10K
B
Adapter
RL_ON
C7556 C7557
10uF 0.1uF
E
300 mA
10V 16V
S7 core 1.26V volt
Replaced Part
+3.5V_ST
R1 Vout=0.8*(1+R1/R2)
R7533
R7536
22K 1%
24K 1%
IC7501
L7507
MP2212DN
Close to IC
10K
FB EN/SYNC R7539
1 8
R7524
75K L7510
R2
1/8W 3.6uH
GND SW_2
1% 2 3A 7
NR8040T3R6N
IN SW_1
3 6
BS VCC
4 5 C7534
C7520
0.1uF
22uF
50V
10V
R7532
Placed on SMD-TOP
R7528 0
C7530
10
1uF
1/10W
1% 10V
24V-->3.48V
15V-->3.56V
ST_3.5V-->3.5V --> 3.375V
IC7509-*1
G691L293T73UF
New item
VCC RESET
3 2
1
GND
DEV_Repalcement
PANEL_VCC
IC7510-*1
G691L293T73UF
VCC RESET
3 2
1
C7547
GND
0.1uF
16V DEV_Repalcement
Power_DET
1074 mA
Vout=0.8*(1+R1/R2)
+1.5V_DDR
Adapter
C7522
1uF
50V
Adapter
C7519
1uF S1
POWER_ON/OFF1 25V
S2
S3
G
close to IC7502
C7576 C7577
22uF
0.1uF
10V
Placed on SMD-TOP
MBRA340T3G
close to pin
Adapter
+3.5V_Normal
Q7508
AO3407A
C7559
R7555
4.7uF
10K G
16V
C7561
1uF
R7556
25V
0
C
C7568
Q7507
0.1uF
2SC3052
16V
E
+3.3V_Normal
+12V/+15V
+24V_LED_driver
R7862
22K
Adapter
S
L7511
G
Q7521
Adapter
D
AO3407A
AO3407A Vgs : 10.8V
Adapter
Q7520
C7549
C7551
Adapter
C7926
10uF 10uF
0.01uF
25V
25V
50V
LED Driver Power
+1.26V_VDDC
+12V/+15V
POWER_ON/OFF2_1
C7546
C7548
22uF 0.1uF
C7550 C7552
10V
10uF 10uF
25V 25V
Placed on SMD-TOP
2026 mA
+24V/+15V
+3.5V_ST
R7561
100K
IC7509
NCP803SN293
1%
R7582
100
VCC RESET
3 2
1
GND
NCP
R7585
+3.5V_ST
100K LIPS
IC7510
LIPS
NCP803SN293
1%
R7586
100
VCC RESET
3 2
1
GND NCP
UNDER CHECKIN
Replacement Item
+24V/+15V
24V->15V
IC7502
MP8670DN-LF-Z Adapter Adapter
Adapter
C7540
C7533 C7536
0.1uF 3.3uF 3.3uF
50V 50V 50V
SW IN
1 8 +12V/+15V
Adapter
090916
real output : 12.
BST EN/SYNC
2 7
RL_ON
Adapter
$0.37
R7540
R1
VCC FB
120K
3 6
1%
R2
BG GND
4 5
Adapter
Q7504
Si4800BDY
D8
1 8
D7
2 7
$0.12
3 6 D6
D5 Adapter
4 5
L7508
Placed on SMD-TOP
4.7uH
Adapter Adapter
Adapter
SP-7850_4.7
C7532 C7537 C7545
10uF 10uF
0.1uF
25V 25V
50V
Adapter
R7529
100K 24V->3.5V
Adapter
C7527
50V 0.1uF
Switching noise reducing [MPS recommend]
IC7503
+24V/+15V
MP4460DQ-LF-Z EP_GND
SW_1 BST
1 10
SW_2 VIN_2
2 9
Adapter
D7500
Adapter C7542 C7544
EN VIN_1
3.3uF 0.1uF +3.5V_ST
3 8
Adapter
Adapter 50V 50V
R7537
200K
Adapter COMP FREQ
$0.21
4 7
C7524 Adapter
1/8W
220pF
FB GND R7544
1%
50V 5 6
105K
1/10W
1%
Adapter
L7509
3.6uH
Adapter Adapter Adapter
C7538 C7543
NR8040T3R6N C7571
10uF
10uF 0.1uF
10V 50V
10V
IC7506
1934 mA
AOZ1073AIL
L7515
L7513
CIC21J501NE
3.6uH
PGND LX_2
1 8
NR8040T3R6N
VIN LX_1
2 7
C7923
0.1uF
3A
AGND EN POWER_ON/OFF2_2
50V C7563 C7567
3 6 R1
22uF 0.1uF
R7558
10V 16V
10K
FB COMP
4 5
OPT
9.1K C7562
2200pF
R7557 100pF
C7558
50V
R2
Vout=(1+R1/R2)*0.8
+5V_Normal
MAX 1A
IC7507
AOZ1072AI
L7514
3.6uH
PGND LX_2
1 8
NR8040T3R6N
VIN LX_1
2 7
C7922
0.1uF 2A
POWER_ON/OFF2_2
AGND EN C7566
50V
3 6 R1
22uF
R7560
10V
10K
FB COMP
4 5
12K C7565
2200pF
R7559 100pF
C7560
50V
R2
Vout=0.8*(1+R1/R2)
GP2_Saturn7
Ver. 1.00
92
POWER_SMALL
POWER_DE
+3.3V_Normal
C756
0.1u
16V
+5V_No
C7578
0.1uF
16V