LG 22LV2500 Service Manual page 35

Adapter
JK7500
JPD003N-M432-4F
24V
MLB-201209-0120P-N2 Adapter L7504
SW
C7502
0.1uF
50V
GND
WLED_ENABLE
+5V_General
+12V/+15V
IC7861
AOZ1072AI-3
L7862
3.6uH
PGND LX_2
1 8
NR8040T3R6N
VIN LX_1
2 7
C7868
0.1uF
2A
POWER_ON/OFF2_2
50V AGND EN
3 6
R7867
C7861
C7862 10K
10uF
10uF FB COMP
4 5
25V 25V
12K
2200pF
R7866
C7863
+5V_USB
+12V/+15V
IC7951
AOZ1073AIL-3
L7952
3.6uH
PGND LX_2
1 8
NR8040T3R6N
VIN LX_1
2 7
C7869
0.1uF
3A
50V POWER_ON/OFF2_1
AGND EN
3 6
R7952
C7951
C7952 10K
10uF 10uF FB COMP
4 5
25V 25V
12K
2200pF
R7951
C7953
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.
+5V_Normal
+24V_LED
+24V/+15V
4A -> 3A modify 090916
Adapter
L7912
MLB-201209-0120P-N2
C7514
C7517
0.1uF 68uF
50V 35V
PANEL_CTL
+3.3V_Normal
3.3K -> 1K (threshold voltage up)
+3.5V_ST
R7514
1K
R7516
10K
R7511 C
R7515
6.8K 10K INV_CTL
B +3.5V_ST
OPT
Q7502
E 2SC3052 R7517
10K
OPT
L420
C461
10uF
10V
+1.5V_DDR
+1.5V_FRC_DDR
Q7522
AO3438
FRC
Vout=0.827*(1+R1/R2)=1.521V
C7580
4.7uF
10V +24V/+15V
OPT
AO3407A Vgs : 10.8V(24V input)
AO3407A Vgs : 8.3V(15V input)
C7501
C7503
POWER_ON/OFF2_1 0.1uF
2.2uF
50V
50V
R7501
27K
R7500
10K
Adapter B
+1.5V_DDR_FRC
POWER_ON/OFF2_2
R7832
10K
NON_Adapter
RL_ON
+5V_General
+15V Control
200 mA
+3.5V_Normal
AZ2940D-2.5TRE1
OPT
C7864 C7865 C7866 C7867
R1
100pF 0.1uF VIN
22uF 0.1uF 1
50V 16V 16V 16V
C7553
0.1uF
16V
300 mA
R2
Vout=(1+R1/R2)*0.8
+5V_USB +3.5V_ST
2000 mA
L413
C430
OPT
10uF
C7954 C7955 C7956 C7957
10V
R1
100pF 0.1uF
22uF 0.1uF
50V 16V 16V 16V
OPT
R2
Vout=(1+R1/R2)*0.8
PANEL_POWER
C7525 C7526 C7529
10uF
0.01uF 0.1uF
16V
25V 16V
Q7506
OPT
AO3407A
New item
R7530
C7531
22K
4.7uF
G
R7523 16V
22K
C7541
1uF
R7531
25V
2.7K
OPT
C
OPT
R7522
B Q7505
10K
2SC3052
C
R7521 E
R7527
10K B Q7503
22K
2SC3052
E
S7M DDR 1.5V
1074 mA
POWER_ON/OFF1
C475
0.1uF
16V C462
0.1uF
16V
L423
3.6uH
VIN_1 PH_3
1 12
THERMAL
VIN_2 PH_2 NR8040T3R6N
2 17 11
C468
C472 C476
0.1uF
GND_1 PH_1
3 IC407 10
22uF 22uF
16V
TPS54319TRE C465 10V 10V
GND_2 SS/TR
4 9
0.01uF
50V
R1
R452
1/16W 330K 5%
R455 C467
4700pF
15K
1/16W 5% 50V
R2
R449
56K
1/16W
3A
1%
$ 0.145
AMP_VCC
+3.5V_ST
+24V +12V/+15V
R7503
22K
C7555
C7554
0.1uF
0.01uF
S
R7555
G Adapter 10K
L7913 3.3uH
Q7501
R7572
D CPI2520NHL3R3ME 2520
AO3407A 0
R7556
C L7914 NON_Adapter
0
BLM18PG121SN1D
C
Q7500 R7545
C7932 C7933
NON_Adapter 10K B Q7507
C7505 3.3uF 0.01uF
2SC3052
E 1608
0.01uF 50V 50V POWER_ON/OFF2_2
2A
50V R7551
E
22K
+3.5V_Normal
+24V_LED
+2.5V
C7925 R7862
2.2uF 22K
IC7505
Adapter
50V
+2.5V_Normal C7924 Adapter
0.1uF S
50V
G
VOUT Adapter
3
Vd=550mV R7861
Q7521
27K
2
Adapter Adapter
D
AO3407A
GND
R7860
C
10K
B
Adapter
RL_ON Adapter
Q7520
C7556 C7557
Adapter
10uF 0.1uF
E
10V 16V
POWER_ON/OFF2_1
S7M core 1.26V volt
C447
C441
0.1uF
16V 0.1uF
16V
L415
3.6uH
VIN_1 PH_3
1 12
THERMAL
VIN_2 PH_2 NR8040T3R6N
2 17 11
C431
C453 C456
0.1uF
GND_1 PH_1
3 IC403 10 22uF 22uF
16V
TPS54418RTER
C488 10V 10V
GND_2 SS
4 9
0.01uF
50V
R1
R432
1/10W 330K 5%
C448
R436
7.5K 3300pF
1/16W 5%
50V
R2
3A
$ 0.165
R441
Vout=0.8*(1+R1/R2)
75K
1/8W
1%
+24V/+15V
24V-->3.48V
15V-->3.56V
ST_3.5V-->3.5V --> 3.375V
C7958
0.1uF
16V
PANEL_VCC
Power_DET
C7547
0.1uF
16V
C7959
0.1uF
16V
MP8670DN-LF-Z
SW
+1.5V_DDR
BST
VCC
Adapter
Adapter
C7522
R7865
1uF
BG
0
50V
Adapter
Adapter Q7504
SI4124DY-T1-GE3(VISHAY)
C7519
1uF S_1 D_4
1 8
C470
25V
S_2 2 7 D_3
0.1uF
16V S_3 D_2
3 6
G 4 5 D_1
C463
close to IC7502
100pF
50V
MBRA340T3G
close to pin
Adapter
+3.5V_Normal
D7500
Q7508
AO3407A
Adapter
C7524
C7559
220pF
4.7uF
G 50V
16V
C7561
1uF
25V
C7568
0.1uF
16V
+3.3V_Normal
+12V/+15V
IC7506
+24V_LED_driver
AOZ1073AIL-3
L7511
PGND
1
VIN
2
C7923
0.1uF
3A
AO3407A Vgs : 10.8V AGND
50V
3
C7549 C7551
C7926 10uF
10uF FB $0.17
0.01uF
25V 4
25V
50V
LED Driver Power
+1.26V_VDDC
+5V_Normal
+12V/+15V
PGND
C444
0.1uF
16V
C7922
0.1uF
AGND
50V
50V
100pF C7550 C7552
C439
10uF 10uF
25V 25V
Vout=0.8*(1+R1/R2)
POWER_TN
+3.5V_ST
R7561
100K
IC7509
APX803D29
1%
R7582
POWER_DET
100
VCC RESET
3 2
IC7509-*1
1
PWR_DET_DIODES NCP803SN293
GND
RESET
2 3
1
R7585
+3.5V_ST
100K LIPS GND
PWR_DET_ON_SEMI
IC7512
LIPS
APX803D29
1%
R7586
100
VCC RESET
3 2
LIPS_PWR_DET_ON_SEMI
1 IC7512-*1
GND NCP803SN293
LIPS_PWR_DET_DIODES
RESET VCC
2 3
1
UNDER CHECKING GND
+24V/+15V
24V->15V
IC7502
Adapter Adapter Adapter
C7533 C7536 C7540
3.3uF 3.3uF
0.1uF
50V 50V 50V
IN
1 8
+12V/+15V
Adapter
090916
real output : 12.3V
EN/SYNC
2 7
RL_ON
Adapter
$0.37
R7540
R1
FB 120K
3 6
1%
R2
GND
4 5
Adapter
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
0.1uF
50V 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
Adapter C7542 C7544
EN VIN_1 3.3uF 0.1uF +3.5V_ST
3 8
Adapter
Adapter 50V
50V
R7537
200K
COMP FREQ
$0.21
4 7
Adapter
1/8W
R7544
FB GND 1%
5 6 105K
1/10W
1%
Adapter
L7509
3.6uH
Adapter Adapter Adapter
C7538 C7543
NR8040T3R6N C7571
10uF
10uF 0.1uF
10V 50V
10V
+3.3V_Normal
1934 mA
L7515
L7513
3.6uH CIC21J501NE
LX_2
8
NR8040T3R6N
LX_1
7
EN POWER_ON/OFF2_2 C7569
C7563 C7567
6
R1
22uF 0.1uF 0.1uF
R7558
16V
16V 16V
10K
COMP
5
OPT
12K C7562
2200pF
R7557 100pF
C7558
50V
R2
Vout=(1+R1/R2)*0.8
MAX 1A
IC7507 +5V_Normal
AOZ1072AI-3
L7514
3.6uH
LX_2
1 8
NR8040T3R6N
VIN LX_1
2 7
2A
POWER_ON/OFF2_2
EN R1 C7565
C7566 C7578 C7570
3 6
100pF
22uF 0.1uF 0.1uF
R7560
50V 16V 16V
10K 16V
FB COMP
4 5
$0.148
12K
2200pF
R7559
C7560
R2
GP2R 20101023
32
VCC