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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.
5.6K
R7531
L7517
+3.5V_ST
100pF
50V
C439
22K
R7527
OPT
RL_ON_BUFFER
+3.3V_Normal
PANEL_VCC
12K
1%
R423
POWER_DET
+24V_LED
100K
R7561
0.1uF
50V
C7543
SP-7850_4.7
4.7uH
L7508
10K
R7515
22uF
16V
C492
OPT
10K
R410
1uF
50V
C7522
THERMAL
TPS54319TRE
IC403
1
VIN_1
3
GND_1
7
COMP
9
SS/TR
10
PH_1
11
PH_2
12
PH_3
13
BOOT
14
PWRGD
15
EN
16
VIN_3
5
AGND
8
RT/CLK
6
VSENSE
4
GND_2
2
VIN_2
17
EP[GND]
0.1uF
16V
C7547
+3.5V_ST
MP8670DN-LF-Z
IC7502
3
VCC
2
BST
4
BG
1
SW
5
GND
6
FB
7
EN/SYNC
8
IN
10K
R443
22uF
10V
C472
+5V_Normal
1uF
10V
C494
10uF
16V
OPT
C7529
+5V_USB
0.1uF
50V
C7502
0.1uF
50V
C7544
+24V/+15V
1/16W
27K
1%
R442
10K
R7516
0.1uF
16V
C435
MLB-201209-0120P-N2
L7504
Adapter_MAG
INV_CTL
1/16W
68K
5%
R7525
0.1uF
16V
C7526
CIS21J121
L7912-*1
L401
1/16W
4.7K
1%
R456
POWER_ON/OFF_1
0
R7865
0.1uF
16V
C444
0.1uF
50V
C7514
NR8040T3R6N
3.6uH
L406
+24V_LED
0.1uF
50V
C7541
OPT
1uF
25V
C424
OPT
560pF
50V
C467
CPI2520NHL3R3ME 2520
3.3uHL7913
0.1uF
16V
C440
1/16W 330K 5%
R432
0.01uF
50V
C7933
+3.5V_ST
AO3407A
Q7506
G
D
S
ERROR_OUT
1/8W
100K
5%
R7537
RL_ON_BUFFER
56K
1%
R416
10uF
25V
C7532
PWM_DIM
10uF
10V
C403
10K
R433
10uF
25V
C7531
FB_CORE
+24V_LED_driver
L413
+1.5V_DDR
22K
R438
1/10W
18K
R7570
RL_ON_BUFFER
10K
R7569
OPT
BLM18PG121SN1D
L420
0.1uF
C413
22K
R7503
47K
R7521
OPT
10K
R7502
OPT
+24V
10K
R7860
0.1uF
50V
C7533
3.3uF
50V
C7932
THERMAL
MP4460DQ-LF-Z
IC7503
3
EN
2
SW_2
4
COMP
1
SW_1
5
FB
6
GND
7
FREQ
8
VIN_1
9
VIN_2
10
BST
11
EP_GND
1/8W
1.6K
1%
R7581
10K
R428
10K
R7506
SI4124DY-T1-GE3(VISHAY)
Q7504
3
S_3
2
S_2
4
G
1
S_1
5
D_1
6
D_2
7
D_3
8
D_4
22uF
16V
C420
+3.5V_ST
PANEL_CTL
27K
R7861
0.1uF
16V
C7957
OPT
+3.3V_Normal
0.1uF
16V
C7958
22uF
10V
C456
0.01uF
50V
C7928
+24V/+15V
1/10W
100K
1%
R7544
27K
R7501
3.3uF
50V
C7542
100K
R7529
+3.3V_Normal
POWER_ON/OFF_1
+24V_LED_driver
BLM18PG121SN1D
L425
3.9K
C7507-*1
PWM_PULL_DOWN
+12V/+15V
3300pF
50V
C493
0
R400
OPT
10K
R7509
0.1uF
50V
C7927
AO3407A
Q7521
G
D
S
2.2uF
50V
C7503
+24V/+15V
0.1uF
16V
C447
22K
R7523
OPT
0.1uF
16V
C432
0.1uF
16V
C476
+3.5V_ST
3.3uF
50V
C7536
10uF
10V
C7538
0.1uF
16V
C475
0
R7580
1/16W
56K
1%
R441
+3.3V_Normal
10uF
10V
C7571
MLB-201209-0120P-N2
L7912
Adapter_MAG
22K
R7862
BLM18PG121SN1D
L403
1/16W
0
5%
R608
22uF
16V
C437
10K
R7500
10K
OPT
R446
0.1uF
50V
C7545
+2.5V_Normal
0.1uF
50V
C7527
6.8K
1%
R7538
220pF
50V
C7524
+3.5V_ST
+1.10V_VDDC
4.7K
R7507
0.1uF
50V
C7924
TJ3940S-2.5V-3L
IC402
GND
VOUTVIN
+12V/+15V
MMBT3904(NXP)
Q7500
E
B
C
1/10W
30K
1%
R7543
100pF
C489
3.3uF
50V
C7540
1/16W
22
5%
R7519
NR8040T3R6N
3.6uH
L415
MBRA340T3G
D7500
11K
1%
R607
+24V/+15V
120K
1%
R7540
1uF
25V
C7519
RL_ON
2.2uF
50V
C7925
10uF
10V
C461
33K
R7530
4.7uF
16V
C423
OPT
+12V/+15V
1/10W
22
R7571
100
1%
R7582
10K
R7522
0.01uF
50V
C7505
0.1uF
50V
C7501
0.1uF
16V
C425
1/16W
4.3K
1%
R457
10uF
25V
C7537
SM14B-SRSS-TB
P400
1
24V
2
24V
3
24V
4
24V
5
24V
6
GND
7
GND
8
GND
9
GND
10
GND
11
ERROR_OUT
12
INV_ON
13
NC
14
PWM_DIM
15
GND
+3.5V_ST
THERMAL
TPS54327DDAR
IC401
3
VREG5
2
VFB
4
SS
1
EN
5
GND
6
SW
7
VBST
8
VIN
9
[EP]GND
THERMAL
AP7173-SPG-13 HF(DIODES)
IC407
3
VCC
2
PG
4
EN
1
IN
5
GND
6
SS
7
FB
8
OUT
9
[EP]
0.1uF
16V
C441
+24V/+15V
100
R7588
AO3407A
Q7501
G
D
S
22uF
10V
C453
10K
R434
10uF
25V
C405
JPD003N-M432-4F
JK400
GND
SW
24V
CIS21J121
L7504-*1
0.01uF
50V
C7926
NR8040T3R6N
3.6uH
L7509
10K
R7524
0.1uF
16V
OPT
C445
1K
R7514
0.1uF
16V
C431
MMBT3904(NXP)
Q7520
E
B
C
15K
R436
10uF
10V
C430
+3.3V_Normal
68uF
35V
C7517
+5V_SUB_AMP
BLM18PG121SN1D
EXT_SPK
L426
2.2K
R7863
PANEL_DISCHARGE_1
2.2K
R7864
PANEL_DISCHARGE_2
3K
PANEL_DISCHARGE_RES
R7864-*1
3K
R7863-*1
PANEL_DISCHARGE_RES
1005
2.7K
1%
R7548
1005
15K
1%
R7547
1
R473
22K
OPT
R7542
0.01uF
50V
C7525
0.01uF
1uF
10V
OPT
C7507
0.015uF
50V
C7504
0.015uF
3300pF
50V
C448
3300pF
50V
C488
MMBT3906(NXP)
Q7508
E
B
C
MMBT3904(NXP)
Q400
E
B
C
MMBT3904(NXP)
Q7502
E
B
C
MMBT3904(NXP)
Q7503
OPT
E
B
C
MMBT3904(NXP)
Q7505
E
B
C
MMBT3904(NXP)
Q7507
E
B
C
NCP803SN293
IC7509-*1
POWER_DET_ON_SEMI
1
GND
3
VCC
2
RESET
APX803D29
IC7509
POWER_DET_DIODES
1
GND
3
VCC
2
RESET
100
R445
AO3407A
Q403
G
D
S
20110324
S7LR_26LED
POWER_Adaptor 4
AMP_VCC
Switching noise reducing [MPS recommend]
New item
Vout=0.827*(1+R1/R2)=1.225V
Vout=(1+R1/R2)*0.765=5.03V
24V-->3.48V
ST_3.5V-->3.5V --> 3.375V
close to IC7502
R1
AO3407A Vgs : 10.8V
3A
090916
+5V_USB
24V->3.5V
Vout=0.8*(1+R1/R2)=1.5319
2000 mA
+1.5V_DDR
300 mA
AO3407A Vgs : 10.8V(24V input)
+2.5V/+1.8V
R2
Max 1000mA
2A
+3.3V_Normal
R1
Vd=550mV
PANEL_POWER
R2
3.3K -> 1K (threshold voltage up)
R2
1.5A‘
AMP_VCC Control
real output : 12.3V
24V->15V
R1
S7LR core 1.2V volt
780 mA
LED Driver Power
Placed on SMD-TOP
R1
$ 0.165
R2
AO3407A Vgs : 8.3V(15V input)
15V-->3.56V
$0.21
4A
close to pin
Power_DET
$0.37
Copyright © 2012 LG Electronics. Inc. All rights reserved.
Only for training and service purposes
LGE Internal Use Only