LG 32LD310H, Service Manual

Page: 23 / 64

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.
+12V/+15V
0 . 1 u F
50V
C467
+24V
10K
R430
+3.5V_ST
10K
R411
L417
100pF
50V
OPT
C482
22uF
10V
C472
4.7K
1%
R461
100uF
16V
C401
+3.5V_ST
100
R415
POWER_18_INV_CTL
10K
R456
1/10W
10
1%
R452
+1.5V_DDR
+2.5V_Normal
10K
R421
1/16W 5.1K 5% R447
PD_+12V
0 R441
MP2212DN
IC403
3
IN
2
GND
4
BS
1
FB
5
VCC
6
SW_1
7
SW_2
8
EN/SYNC
POWER_ON/OFF2_2
RL_ON
0 . 1 u F
16V
C408
POWER_ON/OFF1
10K
R401
NR8040T3R6N
3.6uH
L423
POWER_ON/OFF2_1
0 . 1 u F
16V
C432
PANEL_VCC
100pF 50V C439
10K
1%
R467
33K
1%
R416
0 . 1 u F
16V
C455
22K 1%
R442
100uF
16V
C402
0 . 1 u F
16V
C407
12K 1%
PD_+12V
R448
NR8040T3R6N
3.6uH
L421
A_DIM
+12V/+15V
0 . 1 u F
16V
C406
10K
1%
R457
24K 1%
R444
PWM_DIM
SCAN_BLK1/OPC_OUT
10K
R464
100pF 50V C463
4.7K
R406
CIC21J501NE
L420
2SC3052
Q406
E
B
C
10uF
16V
OPT
C442
1
R473
2SC3052
Q401
E
B
C
MLB-201209-0120P-N2
L404
6.2K
1%
R417
ERROR_OUT
6.8K
OPT
R418
+5V_USB
+12V/+15V
100pF
50V
OPT
C429
L412
+12V/+15V
+3.3V_Normal
2SC3052
Q407
E
B
C
12K
R458
0 . 1 u F
C410
0 . 1 u F
16V
C477
27K
1%
R460
22uF
10V
C453
1uF
10V
C444
0
POWER_16_GND
R412
L416
0 . 1 u F
50V
C418
+3.5V_ST
+12V/+15V
L401
51K
5%
R465
NR8040T3R6N
3.6uH
L422
0 . 0 1 u F
25V
C436
POWER_DET
OPC_OUT
22K
R435
1.5K
1%
R466
AOZ1073AIL
IC405
3
AGND
2
VIN
4
FB
1
PGND
5
COMP
6
EN
7
LX_1
8
LX_2
100pF
50V
OPT
C423
10uF
25V
C458
2200pF
C466
100pF
50V
OPT
C427
22uF
10V
C430
1uF
25V
C451
OPT
+5V_Normal
0 . 1 u F
16V
C424
+1.26V_VDDC
0 . 1 u F
16V
C473
MLB-201209-0120P-N2
L407
10uF
25V
C457
0 . 1 u F
16V
C416 OPT
+3.3V_Normal
0 . 1 u F
50V
C448
0 R455
22uF
10V
C461
0 R478
POWER_23_SCAN_BLK2
0 . 1 u F
C456
+3.5V_ST
SCAN_BLK2
0
POWER_24_PWM_DIM
R472
0
POWER_22_PWM_DIM
R471
POWER_ON/OFF2_2
10K R463
OPT
0 . 1 u F
16V
C404
+24V
1/8W
75K
1%
R432
+3.3V_Normal
10uF
10V
C403
10uF
25V
C405
68uF
35V
C426
2SC3052
Q405
E
B
C
10uF
25V
C459
0 . 1 u F
16V
C438
INV_CTL
+12V/+15V
L413
1uF
10V
C465
PANEL_CTL
001:AJ25;016:AD13
10K
R427
MLB-201209-0120P-N2
L402
0 . 1 u F
C476
0.1uF 16V
OPT
C412
1/10W
10
1%
R436
1/10W
11K
5%
R449
0 . 1 u F
16V
C428
+3.5V_ST
2200pF
C464
1uF
50V
C414
+3.5V_ST
+3.5V_ST
9.1K
R454
10K
R426
OPT
NR8040T3R6N
3.6uH
L406
10uF
25V
C460
POWER_ON/OFF2_1
0 . 1 u F
16V
C440
MP2212DN
IC407
3
IN
2
GND
4
BS
1
FB
5
VCC
6
SW_1
7
SW_2
8
EN/SYNC
10K
R410
30K 1%
OPT
R446
10K
1%
R462
22K
R431
100
POWER_24_INV_CTL
R425
NR8040T3R6N
3.6uH
L415
RT1P141C-T112
Q402
1
2
3
MP8706EN-C247-LF-Z
IC401
3
SW_2
2
SW_1
4
BST
1
IN
5
EN/SYNC
6
FB
7
VCC
8
GND
1uF
25V
OPT
C419
10K
R445
NCP803SN293
IC408
1
GND
3
VCC
2
RESET
10K
R459
100
R480
PD_+12V
4 . 7 u F
16V
C443
22uF
10V
C420
22uF
10V
C469
22uF
10V
C471
FW20020-24S
P403
NORMAL_EXPEPT_32
19
14
9
4
18
13
8
3
17
12
7
2
16
11
6
1
20
15
10
5
21 22
23 24
0
POWER_18_A_DIM
R451
0
POWER_20_A_DIM
R453
1uF 25V
OPT
C484
V_SYNC
0
POWER_20_PWM_DIM
R484
CIC21J501NE
L424
0 . 1 u F
16V
C485
0
POWER_22_A_DIM
R485
+3.3V_Normal
4.7K R486
OPT
22
R487
100K
R488
47K
R429
0
POWER_16_V_SYNC
R477
0
POWER_24_GND
R475
0
POWER_23_GND
R476
1K
R419
0
OPT
R422
0
OPT
R470
0 . 1 u F
C486
27K 1%
PD_+3.5V
R447-*1
1K 1%
PD_+3.5V
R450
100
R402
+24V
AOZ1072AI
IC406
3
AGND
2
VIN
4
FB
1
PGND
5
COMP
6
EN
7
LX_1
8
LX_2
AZ2940D-2.5TRE1
IC402
2
GND
3
VOUT
1
VIN
AO3407A
Q409
G
D S
100K
R404
PD_+12V
NCP803SN293
IC409
PD_+12V
1
GND
3
VCC
2
RESET
24K
1%
R482-*1
20V
FM20020-24
P404
NORMAL_32
19
14
9
4
18
13
8
3
17
12
7
2
16
11
6
1
20
15
10
5
21 22
23 24
25
SMAW200-H24S2
SLIM_32~52
P401
19
12V
14
GND
9
3.5V
4
24V
18
INV ON
13
GND
8
GND
3
24V
17
12V
12
3.5V
7
GND
2
24V
16
GND/V-sync
11
3.5V
6
GND
1
PWR ON
20
A.DIM
15
GND
10
3.5V
5
GND
21
12V
22
P.DIM1
23
GND/P.DIM2
24
Err OUT
25
0
R479
33K R439
5.6K R440
24K
1%
R482
24V
4.3K
1%
R403
24V
5.1K
5%
R403-*1
20V
0 . 1 u F
C474
2.2K
R405
PANEL_DISCHARGE_RES
2.2K
R407
PANEL_DISCHARGE_RES
22uF
10V
C411
OPT
100
POWER_20_ERROR_OUT
R437
100
R420
POWER_24_ERROR_OUT
330uF
4V
C409
OPT
3.9K
C419-*1
PWM_PULL-DOWN
5.6K
1%
R403-*2
18.5V
24K
1%
18.5V
R482-*2
+3.5V_ST
2.2K
R408
PULL_UP
10K
R409
PULL_UP
+3.5V_ST
+3.5V_ST
10K R413
PULL_UP
+3.5V_ST
10K R414
PULL_UP
10K
R423
PULL_UP
+3.5V_ST
51K
5%
R494
NR8040T3R6N
3.6uH
L431
22uF
10V
C491
AOZ1072AI
IC410
3
AGND
2
VIN
4
FB
1
PGND
5
COMP
6
EN
7
LX_1
8
LX_2
10uF
25V
C488
0 . 1 u F
16V
C492
L430
+3.5V_ST
100pF
50V
OPT
C490
2200pF
C489
POWER_ON/OFF2_2
10K
R491
PULL_UP
10uF
25V
C487
1.5K
1%
R493
+12V/+15V
10K
R490
12K
R489
10K
1%
R492
+5V_TUNER
026:AF6
10K R438
PULL_UP
+3.5V_ST
+5V_USB
POWER
Power_DET
R2
+5V_Normal
INV_ON
R2
3A
PWM_DIM
o r L I P S
+2.5V/+1.8V
22
Placed on SMD-TOP
PIN No
V o u t = 0 . 8 * ( 1 + R 1 / R 2 )
3A
Placed on SMD-TOP
R1
V o u t = 0 . 8 * ( 1 + R 1 / R 2 )
+5V_USB
PANEL_POWER
AUO
VBR-A
C IN
Vd=550mV
1074 mA
S7M DDR 1.5V
26/32/52:PWM
E r r _ o u t
3A
1934 mA
V o u t = ( 1 + R 1 / R 2 ) * 0 . 8
20
S T _ 3 . 5 V - - > 3 . 3 7 5 V
Placed on SMD-TOP
E r r _ o u t
R2
Placed on SMD-TOP
R1
New item
R e p l a c e d P a r t
R1
INV_ON
PWM_DIM
SHARP
INV_ON
300 mA
18
R1
PWM_DIM
R1
20V-->3.51V
24V-->3.64V
C l o s e t o I C
V o u t = ( 1 + R 1 / R 2 ) * 0 . 8
24
NC
FROM LIPS & POWER B/D
MAX 2000mA
R2
A-DIM
2026 mA
C l o s e t o I C
C IN
12V-->3.58V
2A
V o u t = 0 . 8 * ( 1 + R 1 / R 2 )
R e p l a c e d P a r t
S 7 M c o r e 1 . 2 6 V v o l t
3A
+3.3V_Normal
MAX 1A
NC
CMO
INV_ON
R2
<OS MODULE PIN MAP>
23
IPS-@
+ 3 . 5 V _ S T - > 3 . 3 7 5 V
INV_ON
E r r _ o u t
GND GND GND GND
52/60:ERROR
26/32HD:NC
GND
PWM_DIM
NC
(PSU) (PSU) (PSU) (PSU)
Only for 32/37LED MODEL
1 8 . 5 V - - > 3 . 5 V
60:NC
26/32/52:GND
60:PWM
LGD(PSU)
+5V_TUNER
R1
V o u t = 0 . 8 * ( 1 + R 1 / R 2 )
2A
R2
21
LD320H-UA_LA06A
2 0 1 0 . 0 9 . 0 4
4 ( 4 )