LG Electronics 42LN549E-ZA Flat Panel Television User Manual


 
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.
0.1uF
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
C437
+3.3V_Normal
10K
R443
0.1uF
C474
22uF
10V
C453
2.2K
R407
OPT
5.6K
R440
POWER_DET
47K
R429
1/16W 330K5%
R432
0.1uF
16V
C438
0.1uF
16V
C411
0.1uF
16V
C425
4.7uF
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
0.1uF
16V
C444
0.1uF
16V
C435
0.1uF
16V
C447
100K
R488
0.1uF
16V
C431
0.1uF
16V
C455
10uF
10V
C430
33K
R439
1/10W
1.21K
1%
R447
PD_+12V
3K
R405-*1
PANEL_DISCHARGE_RES
0.1uF
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
0.1uF
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
0.01uF
50V
C436
0.01uF
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
0.015uF
50V
C409
0.015uF
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
IC408-*1
1
GND
3
VCC
2
RESET
APX803D29
PD_+24V_PWR_DET_DIODES
IC409-*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
2.2uF
10V
FET_2.5V
C423-*1
2.2K
FET_2.5V
R445-*1
OLP
10K
R426
0.1uF
50V
C418
+3.5V_ST
MLB-201209-0120P-N2
L402
+3.5V_ST
0.1uF
16V
C404
+3.3V_Normal
10K
R498
100R408
T120
10K
R401
10K
R461
OPT
1K
R419
+3.5V_ST
0.1uF
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
0.047uF
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
[EP]
0.1uF
16V
C485
OPT
100pF
50V
C482
OPT
4.7uF 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
C483
100K
R410
22uF
16V
C490
22uF
16V
C487
OPT
+5V_Normal
5V
OPT
D401
5V
OPT
D404
5V
OPT
D405
0.1uF
16V
C440
5V
OPT
D402
+2.5V_Normal
10uF
10V
C403
TJ1118S-2.5
IC402
1
GND
2
OUT
3
IN
+3.3V_Normal
0.1uF
16V
C432
OPT
0.1uF
16V
C475
10K
R433
+1.5V_DDR
BLM18PG121SN1D
L414
1/16W
4.7K
1%
R456
BLM18PG121SN1D
L420
1/16W
4.3K
1%
R457
10uF
10V
C461
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]
+3.3V_Normal
+3.5V_ST
560pF
50V
C467
22uF
10V
C472
0.1uF
16V
C476
5V
OPT
D403
CB2012PK501T
L401
CB2012PK501T
L404
CB2012PK501T
L408
L412
L413
POWER_LARGE
4A
R2
New item
Vout=0.8*(1+R1/R2)=1.5319
$ 0.165
12V -->3.58V --> 3.82V (3.68V)
+3.3V_Normal
FROM LIPS & POWER B/D
780 mA
PANEL_POWER
R1
S7LR core 1.2V volt
300 mA
Vout=0.827*(1+R1/R2)=1.225V
24V-->3.78V --> 3.92V (3.79V)
ST_3.5V--> 3.375V --> 3.46V
+2.5V/+1.8V
Power_DET
20V-->3.51V --> 3.76V (3.59V)
2012.11.05
4
EMEA INTERACTIVE
LP63xH-ZA
Not used :
only for small(ready)
+5V_Normal
&
+5V_USB
R2
CHANGE TO
10UF/10V/X5R
Vout=0.8*(1+R1/R2)
R1
CHANGE TO
16V/X5R
+1.5V_DDR
R2
R1
1.5A
Max 1000mA
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Only for training and service purposes
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