LG 60LN549E Service Manual page 32

FROM LIPS & POWER B/D
+3.5V_ST
MMBT3906(NXP)
Q402
1 3
R498 2
10K
+3.5V_ST
R406
4.7K
R461
10K C
OPT
R401
B Q401
RL_ON
MMBT3904(NXP)
10K
R462
E
10K
P401
SMAW200-H18S1
D401 5V OPT
CB2012PK501T
PWR ON
1
L408 L404
3.5V
+3.5V_ST 3
3.5V
C406 0 . 1 u F CB2012PK501T 5
GND
16V 7
L407
24V
+24V 9
GND
C418 0 . 1 u F 11
MLB-201209-0120P-N2
12V
50V 13
L402
12V
15
+12V/+15V
GND
C404 0 . 1 u F 17
MLB-201209-0120P-N2
16V
19
+5V_Normal
Vout=0.8*(1+R1/R2)
&
L406
3.6uH
+5V_USB
C489
C490
0 . 0 4 7 u F
22uF
25V
16V
R427
0
+12V/+15V
CHANGE TO
16V/X5R
L401
CB2012PK501T
C480
PGND
10uF
16V
IC401
VIN
TPS65281RGV
C481
4 . 7 u F 10V
R410
100K
V7V
EN
[ E P ]
R416
R411 20K
C482 2K
100pF
50V
C483
OPT
3300pF
50V
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 © 2013 LG Electronics. Inc. All rights reserved.
Only for training and service purposes
+12V/+15V
+3.3V_Normal
+3.5V_ST
R419
1K
R426
10K
Q405
C
PANEL_CTL
R421
B
INV_CTL
10K
E
MMBT3904(NXP)
+1.5V_DDR
DRV ON
2
PDIM#1
4 PWM_DIM
PDIM#2 R408 100
6
PWM1
GND
8 T120
24V
10
GND
12
12V
14
+3.5V_ST
N.C
16
GND
18
L420
BLM18PG121SN1D
+3.3V_Normal
C461
10uF
10V
+5V_Normal
R1
+2.5V/+1.8V
R424
C487 33K
22uF
1% C485
C486
16V
330pF 0 . 1 u F
OPT R425
50V
27K 16V
OPT
1%
R2
R422
11K 1%
+5V_USB
C484 CAP_10uF_X5R
10uF CHANGE TO
10V
10UF/10V/X5R
85C
SW_OUT +5V_Normal +3.3V_Normal
AGND R420
R423
4.7K
10K
OPT
USB1_OCD
FAULT
USB1_CTL
EN_SW
C484-*1
10uF 10V
CAP_10uF_X7R
S 7 L R c o r e 1 . 2 V v o l t
+3.5V_ST
L413
C430
10uF
10V
PANEL_POWER
0 . 0 1 5 u F
0 . 0 1 u F C438
C409
C436 0 . 1 u F
New item
0 . 0 1 5 u F 0 . 0 1 u F
16V
50V 50V
Q409
AO3407A
C443
R439
10uF
33K
G
25V
R431
22K C451
0 . 1 u F
R440
OPT
5.6K
C
B Q407
MMBT3904(NXP)
C
R429
R435 E
47K
B Q406
22K
MMBT3904(NXP)
PANEL_DISCHARGE_RES
E
Max 1000mA
IC407
AP7173-SPG-13 HF(DIODES)
[ E P ]
IN OUT
1 8
R457
PG FB
4.3K
2 7
1/16W R1
1%
VCC SS
3 6
1.5A
R433 EN GND
4 5
C467
10K
R2
560pF
C475
0 . 1 u F 50V
16V
V o u t = 0 . 8 * ( 1 + R 1 / R 2 ) = 1 . 5 3 1 9
+3.3V_Normal
IC402
+2.5V_Normal
T J 1 1 1 8 S - 2 . 5
IN OUT
3 2
1
C432
GND
0 . 1 u F C403 C440 D402
16V 10uF 0 . 1 u F 5V
OPT OPT
10V 16V
+3.3V_Normal
10K
C447
R428
0 . 1 u F
C441
16V
0 . 1 u F
16V
L415
3.6uH
VIN_1 PH_3
1 12
THERMAL
VIN_2 PH_2 NR8040T3R6N
2 17 11
C431
C453
0 . 1 u F
GND_1 PH_1 22uF
16V 3 IC403 10
10V
TPS54319TRE
C488
GND_2 SS/TR
4 9
3300pF
R1
R442
R432 27K
1/16W 330K 5% 1/16W
1%
R436 C448
3300pF
15K
50V
R2
4A
$ 0 . 1 6 5
Vout=0.827*(1+R1/R2)=1.225V
S T _ 3 . 5 V - - > 3 . 3 7 5 V - - > 3 . 4 6 V
1 2 V - - > 3 . 5 8 V - - > 3 . 8 2 V ( 3 . 6 8 V ) +12V/+15V
2 0 V - - > 3 . 5 1 V - - > 3 . 7 6 V ( 3 . 5 9 V )
2 4 V - - > 3 . 7 8 V - - > 3 . 9 2 V ( 3 . 7 9 V )
C411
0 . 1 u F
PANEL_VCC 16V
+24V
C455
R405 R407
0 . 1 u F
2.2K 2.2K
16V OPT
OPT
PD_+24V
R405-*1
3K C412
R407-*1 PD_+24V
0 . 1 u F
3K
16V
PD_+24V
PANEL_DISCHARGE_RES
+3.3V_Normal
+1.5V_DDR
+3.5V_ST
0 . 1 u F
16V
R434
10K
R443
C476
C472 D403 10K
POWER_ON/OFF_1
22uF 0 . 1 u F 5V
10V 16V
OPT
300 mA
+1.10V_VDDC
OLP
N o t u s e d :
o n l y f o r s m a l l ( r e a d y )
C444
D405
0 . 1 u F
5V
16V
OPT
50V
100pF
C439
EMEA INTERACTIVE
POWER_LARGE
R488 +3.5V_ST
100K
PWR_DET_ON_SEMI R463
IC408 10K
APX803D29
OPT
POWER_DET
R402
VCC RESET
3 2
I C 4 0 8 - * 1
100
1
C474
APX803D29
GND 0 . 1 u F
RESET VCC
2 3
1
PD_+24V
R404 GND
100K
PWR_DET_ON_DIODES
I C 4 0 9 - * 1
PWR_DET_ON_SEMI
APX803D29
IC409
APX803D29
RESET VCC
2 3
VCC RESET R480 100
3 2
1
PD_+24V
1
GND
GND
PD_+24V_PWR_DET_DIODES
Power_DET
780 mA
+3.3V_Normal
FET_AOS
Q403
L403
AO3407A
BLM18PG121SN1D
C423 C437
C425 D404
R438 4 . 7 u F 0 . 1 u F 22uF 5V
22K 16V 16V 16V
OPT
FET_AOS
FET_2.5V
C423-*1
FET_AOS
2 . 2 u F
R445
10V
FET_2.5V_DIODE FET_2.5V_AOS
100
AO3435
DMP2130L
FET_2.5V
Q403-*2
Q403-*1
R445-*1
C 2.2K
B Q400
MMBT3904(NXP)
E
LP63xH-ZA
2 0 1 2 . 1 1 . 0 5
4
LGE Internal Use Only