Read LG 47LN549E / 47LP620H (CHASSIS:LB3AZ) Service Manual online
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.
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.
0 . 1 u F
C451
OPT
100K
R404
PD_+24V
+12V/+15V
NR8040T3R6N
3.6uH
L415
AO3407A
Q409
G
D
S
1/16W
56K
1%
R441
22uF
10V
C456
+3.5V_ST
1.5K
1%
R403
PD_+24V
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]
22uF
16V
16V
C437
+3.3V_Normal
10K
R443
0 . 1 u F
C474
22uF
10V
C453
2.2K
R407
OPT
5.6K
R440
POWER_DET
47K
R429
1/16W 330K 5%
R432
0 . 1 u F
16V
16V
C438
0 . 1 u F
16V
16V
C411
0 . 1 u F
16V
16V
C425
4 . 7 u F
16V
16V
C423
FET_AOS
PANEL_CTL
+3.5V_ST
+1.10V_VDDC
2.2K
R405
OPT
10uF
25V
C443
100
R480
PD_+24V
+12V/+15V
10K
R463
OPT
0 . 1 u F
16V
16V
C444
0 . 1 u F
16V
16V
C435
0 . 1 u F
16V
C447
100K
R488
0 . 1 u F
16V
16V
C431
0 . 1 u F
16V
16V
C455
10uF
10V
10V
C430
33K
R439
1/10W
1.21K
1%
R447
PD_+12V
3K
R405-*1
PANEL_DISCHARGE_RES
0 . 1 u F
16V
16V
C412
PD_+24V
22K
R435
PANEL_VCC
8.2K
1%
R482
PD_+24V
3K
PANEL_DISCHARGE_RES
R407-*1
100pF
50V
C439
100
R402
+3.3V_Normal
10K
R428
22K
R438
+3.5V_ST
22K
R431
+3.5V_ST
BLM18PG121SN1D
L403
0 . 1 u F
16V
C441
2.7K
1%
PD_+12V
R448
+24V
10K
R434
POWER_ON/OFF_1
0
5%
PD_+3.5V
R450
15K
R436
1/16W
27K
1%
R442
0 . 0 1 u F
50V
C436
0 . 0 1 u F
3300pF
50V
C448
3300pF
C488
MMBT3904(NXP)
Q400
E
B
C
MMBT3904(NXP)
Q406
E
B
C
MMBT3904(NXP)
Q407
E
B
C
AO3407A
Q403
FET_AOS
G
D
S
0 . 0 1 5 u F
50V
50V
C409
0 . 0 1 5 u F
APX803D29
IC408
PWR_DET_ON_SEMI
1
GND
3
VCC
2
RESET
APX803D29
IC409
PWR_DET_ON_SEMI
1
GND
3
VCC
2
RESET
100
R445
FET_AOS
APX803D29
PWR_DET_ON_DIODES
I C 4 0 8 - * 1
1
GND
3
VCC
2
RESET
APX803D29
PD_+24V_PWR_DET_DIODES
I C 4 0 9 - * 1
1
GND
3
VCC
2
RESET
AO3435
FET_2.5V_AOS
Q403-*2
G
D
S
DMP2130L
FET_2.5V_DIODE
Q403-*1
G
D
S
2 . 2 u F
10V
10V
FET_2.5V
C423-*1
2.2K
FET_2.5V
R445-*1
OLP
10K
R426
0 . 1 u F
50V
C418
+3.5V_ST
MLB-201209-0120P-N2
L402
+3.5V_ST
0 . 1 u F
16V
C404
+3.3V_Normal
10K
R498
100
R408
T120
10K
R401
10K
R461
OPT
1K
R419
+3.5V_ST
0 . 1 u F
16V
C406
MMBT3904(NXP)
Q401
E
B
C
+24V
+3.5V_ST
SMAW200-H18S1
P401
14
12V
9
24V
4
PDIM#1
18
GND
13
12V
8
GND
3
3.5V
17
GND
12
GND
7
GND
2
DRV ON
16
N.C
11
GND
6
PDIM#2
1
PWR ON
15
12V
10
24V
5
3.5V
19
.
4.7K
R406
MLB-201209-0120P-N2
L407
10K
R421
MMBT3904(NXP)
Q405
E
B
C
PWM1
INV_CTL
RL_ON
PWM_DIM
MMBT3906(NXP)
Q402
1
2
3
+12V/+15V
JP_GND1
JP_GND3
JP_GND2
JP_GND4
10K
R462
0 . 0 4 7 u F
25V
25V
C489
330pF
50V
C486
20K
R416
10K
R423
3.6uH
L406
4.7K
OPT
R420
10uF
C480
16V
+3.3V_Normal
+12V/+15V
0
R427
10uF 10V
CAP_10uF_X7R
C484-*1
THERMAL
TPS65281RGV
IC401
3
ROSC
2
COMP
4
RLIM
1
SS
EN_SW
5
FAULT
6
AGND
7
SW_OUT
8
SW_IN
9
FB
10
LX
11
BST
12
PGND
13
VIN
14
V7V
15
EN
16
17
[ E P ]
0 . 1 u F
16V
16V
C485
OPT
100pF
50V
C482
OPT
4 . 7 u F 10V
C481
27K
1%
R425
11K 1%
R422
USB1_CTL
33K
1%
R424
+5V_USB
USB1_OCD
10uF
C484 CAP_10uF_X5R
10V
85C
+5V_Normal
2K
R411
3300pF
50V
50V
C483
100K
R410
22uF
16V
16V
C490
22uF
16V
16V
C487
OPT
+5V_Normal
5V OPT
D401
5V
OPT
OPT
D404
5V
OPT
OPT
D405
0 . 1 u F
16V
16V
C440
5V
OPT
OPT
D402
+2.5V_Normal
10uF
10V
10V
C403
T J 1 1 1 8 S - 2 . 5
IC402
1
GND
2
OUT
3
IN
+3.3V_Normal
0 . 1 u F
16V
16V
C432
OPT
1/16W
4.7K
1%
R456
THERMAL
AP7173-SPG-13 HF(DIODES)
IC407
3
VCC
2
PG
4
EN
1
IN
5
GND
6
SS
7
FB
8
OUT
9
[ E P ]
0 . 1 u F
16V
C475
5V
OPT
OPT
D403
BLM18PG121SN1D
L420
+1.5V_DDR
10K
R433
560pF
50V
50V
C467
+3.5V_ST
10uF
10V
C461
0 . 1 u F
16V
C476
1/16W
4.3K
1%
R457
BLM18PG121SN1D
L414
22uF
10V
10V
C472
+3.3V_Normal
CB2012PK501T
L401
CB2012PK501T
L404
CB2012PK501T
L408
L412
L413
POWER_LARGE
4A
R2
New item
Max 1000mA
V o u t = 0 . 8 * ( 1 + R 1 / R 2 ) = 1 . 5 3 1 9
+1.5V_DDR
$ 0 . 1 6 5
1 2 V - - > 3 . 5 8 V - - > 3 . 8 2 V ( 3 . 6 8 V )
+3.3V_Normal
FROM LIPS & POWER B/D
780 mA
PANEL_POWER
R1
S 7 L R c o r e 1 . 2 V v o l t
300 mA
Vout=0.827*(1+R1/R2)=1.225V
2 4 V - - > 3 . 7 8 V - - > 3 . 9 2 V ( 3 . 7 9 V )
S T _ 3 . 5 V - - > 3 . 3 7 5 V - - > 3 . 4 6 V
+2.5V/+1.8V
Power_DET
2 0 V - - > 3 . 5 1 V - - > 3 . 7 6 V ( 3 . 5 9 V )
2 0 1 2 . 1 1 . 0 5
4
EMEA INTERACTIVE
LP63xH-ZA
N o t u s e d :
o n l y f o r s m a l l ( r e a d y )
+5V_Normal
&
+5V_USB
&
+5V_USB
R2
CHANGE TO
10UF/10V/X5R
V o u t = 0 . 8 * ( 1 + R 1 / R 2 )
R1
CHANGE TO
16V/X5R
R1
1.5A
R2
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