LG 55LV555H Service Manual page 25
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Also See for 55LV555H:
- Owner's manual (207 pages) ,
- Setup manual (69 pages) ,
- Owner's manual (32 pages)
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* FROM LIPS & POWER B/D -->Apply changed Pin Map
+3.5V_ST
+3.5V_ST
R421
0
R417
E
10K
RT1P141C-T112
B
Q408
C
2SC3052
C
L411
B
Q400
MAIN_PWR_ON
120-ohm
R409
5:O18;16:AC22
R413
C480
10K
E
10uF
10V
OPT
+3.5V_ST
2 2 0 u F = = > 1 0 0 u F * 2 + 2 2 u F f o r D e p t h
L413
OPT
120-ohm
C420
100uF
6.3V
OPT
+12V
GND/P.DIM2
L407
MLB-201209-0120P-N2
OPT
C424
C406
22uF
47uF
16V
16V
* + 5 V / + 1 2 V
+3.5V_ST
Q413
AO3407A
+3.5V_ST
C487
0 . 1 u F
G
16V
Q409
R469
R472
C
2SC3052
0
0
R463
32"_OPT
32"_OPT
B
32"_OPT
+3.3V_BCM_EN
Q411
33K
5 : N 1 8 ; J 4
AO4813
E
S2
1
G2
2
R471
0
S1
3
32"_OPT
R470
0
G1
4
+12V
32"_OPT
Q412
AO3407A
C486
1uF
G
16V
C
9:AJ20
B
Q410
2SC3052
E
* +12V -> +3.3V for HDIM_SW/ EXT_VDEC/ PWM_AMP / Flash / EEPROM / ProidIom
R422
R439
R438
10K
4.7K
27K
1%
1/10W
1%
1%
+12V
IC400
AOZ1073AIL-3
PGND
LX_2
1
8
L409
BLM18PG121SN1D
VIN
LX_1
2
7
AGND
EN
C438
0
C431
3
6
0 . 1 u F
22uF
16V
R425
16V
OPT
FB
COMP
4
5
C432
1000pF
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.
INV_CTL_18
A_DIM_20
+24V
L410
MLB-201209-0120P-N2
OPT
OPT
C411
C407
C405
0 . 1 u F
1uF
68uF
50V
35V
50V
PWR ON
24V
1
2
24V
24V
3
4
GND
GND
5
6
PWM_DIM_22
GND
GND
7
8
3.5V
3.5V
9
10
3.5V
3.5V
11
12
GND
GND
13
14
GND
GND/V-sync
15
16
12V
INV ON
17
18
12V
A.DIM
19
20
ERROR_OUT_24
12V
P.DIM1
21
22
Err OUT
23
24
ERROR_OUT_24
25
SMAW200-H24S2
P400
+3.5V
37/42/47/55_OPT
R475
C490
2.2K
0 . 1 u F
OPT
OPT
16V
C489
22uF
R473
0
3 2 I n c h O p t i o n
32"_OPT
Location
Value
Q404
AO4813
8
D2_2
R441
0 ohm
7
D2_1
R452
0 ohm
R432
0 ohm
6
D1_2
R429
0 ohm
5
D1_1
R449
0 ohm
R450
0 ohm
R474
0
32"_OPT
+12V_TCON
R476
37/42/47/55_OPT
OPT
2.2K
C488
OPT
22uF
+3.3V
+3.3V_VDEC
OPT
0
R404
Q403
L404
AO3407A
L401
3.6uH
BLM18PG121SN1D
C435
R416
C434
C408
C429
G
10uF
OPT
2.2K
10uF
0 . 1 u F
22uF
OPT
C409
OPT
6.3V
16V
6.3V
6.3V
22uF
+3.5V_ST
R408
+3.5V_ST
1K
+3.3V_BCM_EN
C
R406
5:N18;B15
10K
Q406
B
VDEC_EN
2SC3052
9:AJ23
E
R428
100
POWER_18_INV_CTL
R461
POWER_18_A_DIM
A_DIM
0
POWER_20_A_DIM
R414
4.7K
A_DIM
POWER_20_PWM_DIM
PWM_DIM
R426
0
+5V_DEVICE
+5V_DEVICE
ERROR_OUT
R400
4.7K
POWER_20_ERROR_OUT
POWER_22_A_DIM
C
R430
4.7K
A_DIM
POWER_22_PWM_DIM
B
PWM_DIM
R434
0
R460
0
Q401
NON_OPC/NON_IOP
E
2SC3052
R407
0
POWER_24_PWM_DIM
POWER_24_INV_CTL
R423
100
ERROR_OUT
R418
4.7K
POWER_24_ERROR_OUT
C437
22uF
6.3V
OPT
+3.5V_ST
R436
10K
INV_ON
* +12V to +5V USB
IC406
AOZ1073AIL-3
+12V
PGND
1
VIN
2
3A
Placed on SMD-TOP
AGND
3
C481
10uF
FB
16V
4
Vout=0.8*(1+R1/R2)
* S T _ 5 V ( 2 0 0 m A ) / S T _ 1 2 V ( 1 . 5 A )
L416
3.6uH
SW_1
+3.5V_ST
SW_2
C426
IN
C403
C410
0 . 1 u F
10uF
1uF
16V
10V
10V
OPT
FREQ
SS
C417
0 . 1 u F
[EP]AGND
16V
+12V_ST
C470
0 . 1 u F
50V
C470 Close to LDO
+5V_DEVICE
L418
L414
3.6uH
LX_2
MLB-201209-0120P-N2
8
NR8040T3R6N
LX_1
7
+3.5V
EN
C485
6
R1
22uF
R456
10V
10K
COMP
OPT
5
C483
OPT
R455
C484
0 . 1 u F
12K
100pF
16V
50V
R2
+12V_ST
D401
SMAB34
40V
OPT
C412
C418
1uF
22uF
16V
16V
6
5
PGND
R445
OPT
100K
R1
C423
+3.5V_ST
1%
7
4
100pF
AGND
50V
8
3
EN
9
2
FB
R446
10
1
R2
18K
COMP
1%
R429
TPS61087DRC
75K
IC403
C422
1200pF
50V
+5V_ST
IC401
AP1117EG-13
IN
OUT
ADJ/GND
R441
1
5%
110
C442
330
C443
R443
0 . 1 u F
10uF
R433
16V
10V
C l o s e t o I C 4 0 3
LV555H-UA
2 0 1 0 . 1 2 . 1 0
POWER(12V)
4
18
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