LG 32LD350 Service Manual page 19

FROM LIPS & POWER B/D
+3.5V_ST
RT1P141C-T112
Q402
1 3
R406
4.7K
2
NORMAL_26~32
C
R401 P403
10K
RL_ON FW20020-24S
B Q401
2SC3052
P402
26"~32"
SMAW200-12
NORMAL_19~22
E
PWR_ON 24V
1 2
+15V 1
24V 24V
3 4
+15V' 2
GND 5 6 GND
GND 3
GND GND
+3.5V_ST 7 8
L404 GND 4
3.5V 3.5V
9 10
MLB-201209-0120P-N2 +3.5V_ST 5
3.5V 11 12 3.5V
3.5V_ST 6
GND GND
13 14
GND 7
C401 C406 C408
GND GND/OLP
15 16
100uF
0.1uF 0.1uF OLP 8
16V 12V INV_ON
16V 16V 17 18
INV_EN 9
12V A.DIM
19 20
PWM_DIM 10
12V 21 22 P.DIM
A_DIM 11
+12V
GND Err_OUT/NC
23 24
L402 NC 12
MLB-201209-0120P-N2
C404 C407
C402
0.1uF
0.1uF
100uF
16V
<OS MODULE PIN MAP>
Sharp
AUO
PIN No LGD CMO(09) SHARP R9825
INV_ON
INV_ON A-DIM INV_ON
18
V4:VBR-A
20 NC Err_out Err_out
V5:NC
A-DIM
22 PWM_DIM PWM_DIM PWM_DIM
Err_out
24 INV_ON PWM_DIM GND
+15V Control
+24V/+15V
C478
0.1uF
R468 C479
50V
22K
2.2uF
19"~22"
50V
19"~22"
S
R469
G
0
R428
2.2K 26"~32"
Q410
19"~22"
D 2012
AO3407A
C 19"~22"
R438
10K
B RT1C3904-T112
Q411
C
19"~22"
R400 R443
E C480
POWER_ON/OFF1 0 47K
B Q400
0.01uF
2SC3052 50V
OPT OPT
OPT R473
E
RL_ON 22K
19"~22"
OPT
R405
0
+5V_USB
+12V/+15V
IC401
MP8706EN-C247-LF-Z
IN GND
1 8
C414
1uF
SW_1 VCC
2 7 50V
C405
3A
10uF
SW_2 FB
25V
3 6
C410
0.1uF
BST EN/SYNC
4 5
R487
22
+3.3V_Normal
L406
3.6uH
NR8040T3R6N
R474
10K
Vout=(1+R1/R2)*0.8
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.
+5V_Normal +12V/+15V
+24V/+15V
L407
MLB-201209-0120P-N2
C418
C426
0.1uF 68uF
50V 35V
+3.3V_Normal
+3.5V_ST
PANEL_CTL
19"~22" R419
R413
1K 1:AK10
0
OLP
R426
10K
R418
C
R421
6.8K
INV_CTL +3.5V_ST
B 10K
OPT
Q405
E 2SC3052 R427
10K
OPT
R409
0
19"~22"
A_DIM
R453 0
LGD_26"~32"
R414
0
19"~22"
R471
0
NON_AUO_26"~32"
R472 R479
PWM_DIM
AUO 0 NON_OPC
0
R424
1K
C416 C419
0
OPC_OUT
0.1uF 1uF
LGD_OPC
OPT 25V
R470
OPT
0
+3.3V_Normal
Placed on SMD-TOP
C461
C IN 22uF
R437
10V
0
ERROR_OUT
AUO/SHARP
R420
0
LGD
AMP_VCC +12V/+15V +12V
19"~22"
26"~32"
R476 R477
0 0
2012
1/10W
C481
2012
0.1uF
50V
+3.5V_ST
+5V_USB
MAX 2000mA
OPT
C482
OPT
100pF
C429
50V
C420 C424 C428
100pF
R410 R1
22uF 0.1uF 0.1uF
50V
10K
10V 16V 16V
POWER_ON/OFF1
R411 Placed on SMD-TOP
10K
R2
OPT
C430
C IN
22uF
10V
+5V_USB
PANEL_POWER
C442
C438
C436 10uF
0.1uF New item
0.01uF 16V
16V
25V
OPT Q409
AO3407A
C443
4.7uF
G
16V
R431 C451
1uF
22K
25V
OPT
C
R430
10K
B Q407
2SC3052
C
E
R429
R435
47K B Q406
22K
2SC3052
E
S7M DDR 1.8V
1074 mA
Replaced Part
CIC21J501NE
L420
R457 R1
Vout=0.8*(1+R1/R2)
+3.3V_Normal
15K 5%
Close to IC
IC407
R422
120K OPT
MP2212DN
10K
FB EN/SYNC R464
1 8 POWER_ON/OFF1
R449
12K L423
R2
1/10W 3.6uH
GND SW_2
5% 2 7
3A
NR8040T3R6N
IN SW_1
3 6
C472
22uF
10V
BS VCC
4 5 C467
0.1uF
Placed on SMD-TOP
50V
R455 0
R452
10
C465
1/10W
1uF
1%
10V
S7M core 1.26V volt
2026 mA
L413
Replaced Part
Vout=0.8*(1+R1/R2)
R1
+3.3V_Normal
R442
R444
22K 1%
24K 1% OPT
IC403
MP2212DN R425
Close to IC
120K
10K
R445 OPT
FB EN/SYNC
1 8 POWER_ON/OFF2_1
R432
75K L415
R2
1/8W 3.6uH
GND SW_2
1% 2 3A 7
NR8040T3R6N
IN SW_1
3 6 C453
22uF
10V
BS VCC
C448
4 5
0.1uF
Placed on SMD-TOP
50V
R441 0
R436
C444
10
1/10W 1uF
1% 10V
15V-->3.6V
20V-->3.5V
+24V/+15V +12V/+15V
24V-->3.48V
12V-->3.58V
ST_3.5V-->3.5V
PANEL_VCC
+12V
Power_DET
C455 UNDER CHECKING
0.1uF
16V
+12V/+15V
+3.3V_Normal
Vout=0.8*(1+R1/R2)
R403
33K
+1.8V_DDR
IC405
OPT
AOZ1073AIL
PGND
1
VIN
2
3A
AGND
3
C459
C457
10uF
10uF
25V 25V
FB
4
C476
0.1uF
Vout=(1+R1/R2)*0.8
+12V/+15V
+5V_Normal
R404
33K
IC406
OPT
AOZ1073AIL
PGND
1
VIN
2
3A
AGND
3
C458 C460
10uF 10uF
FB
25V 25V 4
Vout=0.8*(1+R1/R2)
+3.3V_AVDD_MPLL
+3.5V_ST
+1.26V_VDDC
IC400
TJ3965S-3.3V-3L
IN OUT
GND
C403 C9810
0.1uF 22uF
16V 10V
C456
0.1uF
Power Block
+3.5V_ST
+3.5V_ST
R488
100K
IC408
NCP803SN293
POWER_DET
VCC RESET
3 2
1
GND
+3.5V_ST
OPT
IC409
NL17SZ08DFT2G C483
0.1uF
1 5
2
OPT
R480
100
3 4
+3.3V_Normal
POWER_ON/OFF1 1934 mA
R456
10K
L424
L421
CIC21J501NE
3.6uH
LX_2
8
NR8040T3R6N
LX_1
7
EN C469 C473
6 R1 C485
22uF 0.1uF
0.1uF
10V 16V
16V
COMP
5
OPT
9.1K C423
2200pF
R454 100pF
C464
50V
R2
+3.3V_Normal
+5V_Normal
R475
10K
OPT
POWER_ON/OFF1 MAX 1A
R459
10K
L422
3.6uH
LX_2
8
NR8040T3R6N
LX_1
7
EN
6 R1
C471
C477
22uF 0.1uF
10V 16V
COMP
5
OPT
9.1K C427
2200pF
R458 100pF
C466
50V
R2
+3.3V_AVDD_MPLL
L400
BLM18PG121SN1D
C9809 C411 C400
22uF 0.1uF 0.1uF
10V 16V 16V
09.09.03
LD350
2