Download Print this page

LG 32LD420-SA Service Manual page 20

Hide thumbs Also See for 32LD420-SA:

Advertisement

FROM LIPS & POWER B/D
+3.5V_ST
RT1P141C-T112
Q402
R406
1
3
4.7K
NORMAL_EXPEPT_32
NORMAL_32
R401
C
P403
2
P404
10K
RL_ON
FW20020-24S
FM20020-24
B
Q401
2SC3052
E
PWR ON
1
1
1
2
2
2
24V
3
3
3
4
4
4
GND
+3.5V_ST
5
5
5
6
6
6
L404
GND
MLB-201209-0120P-N2
7
7
7
8
8
8
3.5V
9
9
9
10
10
10
3.5V
11
11
11
12
12
12
C401
C406
C408
GND
100uF
13
13
13
14
14
14
0.1uF
0.1uF
16V
GND
16V
16V
15
15
15
16
16
16
12V
17
17
17
18
18
18
12V
19
19
19
20
20
20
+12V/+15V
12V
21
21
21
22
22
22
L402
GND/P.DIM2
23
23
23
24
24
24
MLB-201209-0120P-N2
C404
C407
C402
25
25
0.1uF
0.1uF
100uF
16V
SLIM_32~52
P401
SMAW200-H24S2
<OS MODULE PIN MAP>
LGD(PSU)
IPS-@
CMO
SHARP
AUO
PIN No
or LIPS
(PSU)
(PSU)
(PSU)
(PSU)
INV_ON
A-DIM
18
INV_ON
INV_ON
INV_ON
52/60:ERROR
Err_out
20
VBR-A
NC
Err_out
26/32HD:NC
26/32/52:PWM
NC
22
PWM_DIM
PWM_DIM
NC
60:NC
26/32/52:GND
Err_out
INV_ON
PWM_DIM
PWM_DIM
24
60:PWM
GND
GND
23
GND
GND
GND
OLP
+5V_USB
+12V/+15V
IC401
MP8706EN-C247-LF-Z
IN
GND
1
8
C414
1uF
SW_1
VCC
2
7
50V
C405
10uF
3A
SW_2
FB
25V
3
6
C410
0.1uF
BST
EN/SYNC
4
5
R487
22
L406
3.6uH
NR8040T3R6N
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.
+12V/+15V
+24V
L407
24V
MLB-201209-0120P-N2
24V
GND
C418
C426
GND
0.1uF
68uF
3.5V
50V
35V
3.5V
POWER_16_V_SYNC
PANEL_CTL
GND
R477
GND/V-sync
0
1:AK10
V_SYNC
INV ON
A.DIM
+3.3V_Normal
P.DIM1
Err OUT
+3.5V_ST
R419
+3.5V_ST
POWER_18_INV_CTL
1K
R415
100
R426
OPT
10K
R425
100
C
R418
R421
POWER_24_INV_CTL
10K
INV_CTL
B
6.8K
OPT
Q405
E
2SC3052
R427
10K
POWER_18_A_DIM
OPT
0
R451
POWER_22_A_DIM
R485
0
A_DIM
POWER_20_A_DIM
R453
0
POWER_20_PWM_DIM
POWER_24_PWM_DIM
R484
PWM_DIM
R479
0
R472
0
0
C419-*1
3.9K
R471
0
POWER_22_PWM_DIM
PWM_PULL-DOWN
OPT
OPT
C416
C419
SCAN_BLK1/OPC_OUT
R422
0
0.1uF
1uF
POWER_22_SCAN_BLK1/OPC_OUT
16V
25V
OPT
OPC_OUT
R470
0
Placed on SMD-TOP
+3.3V_Normal
POWER_20_ERROR_OUT
R437
100
C461
C IN
22uF
POWER_24_ERROR_OUT
ERROR_OUT
10V
100
R420
+3.3V_Normal
+3.5V_ST
+5V_USB
MAX 2000mA
OPT
C482
OPT
100pF
50V
C429
C420
C424
C428
100pF
R410
R1
22uF
0.1uF
0.1uF
50V
10K
10V
16V
16V
POWER_ON/OFF2_1
Placed on SMD-TOP
R411
10K
R2
C430
C IN
22uF
10V
+5V_USB
All manuals and user guides at all-guides.com
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
OPT
C
R430
10K
B
Q407
2SC3052
C
E
R429
R435
47K
B
Q406
22K
2SC3052
E
S7M DDR 1.5V
1074 mA
CIC21J501NE
L420
Replaced Part
R1
R457
10K
1%
IC407
MP2212DN
Close to IC
10K
FB
EN/SYNC
R464
1
8
POWER_ON/OFF1
R449
11K
L423
R2
1/10W
3.6uH
GND
SW_2
5%
2
7
3A
NR8040T3R6N
IN
SW_1
3
6
C472
22uF
10V
BS
VCC
C467
4
5
0.1uF
Placed on SMD-TOP
50V
R455
0
R452
10
C465
1/10W
1uF
1%
10V
+2.5V/+1.8V
IC402
+2.5V_Normal
AZ2940D-2.5TRE1
VIN
VOUT
1
3
300 mA
Vd=550mV
2
GND
C432
0.1uF
16V
C403
C440
10uF
0.1uF
10V
16V
S7M core 1.26V volt
2026 mA
L413
Replaced Part
Vout=0.8*(1+R1/R2)
R1
R442
R444
22K 1%
IC403
24K 1%
MP2212DN
Close to IC
10K
FB
EN/SYNC
R445
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
4
5
C448
0.1uF
Placed on SMD-TOP
NON_FRC
50V
R441
0
R436
10
C444
1/10W
1uF
1%
10V
ST_3.5V--> 3.375V
20V-->3.51V
+24V
+12V/+15V
24V-->3.64V
12V-->3.58V
18.5V-->3.5V
PANEL_VCC
+24V
POWER_+24V
POWER_+18.5V
POWER_+20V
R407
R405
C455
2.2K
2.2K
0.1uF
16V
POWER_+24V
PANEL_DISCHARGE_RES
POWER_+20V
POWER_+18.5V
PANEL_DISCHARGE_RES
Only for 32/37LED MODEL
+3.3V_Normal
+12V/+15V
IC405
AOZ1073AIL
Vout=0.8*(1+R1/R2)
PGND
+1.5V_DDR
1
VIN
2
3A
AGND
3
C457
C459
10uF
10uF
FB
25V
4
25V
C476
0.1uF
Vout=(1+R1/R2)*0.8
+5V_Normal
+12V/+15V
PGND
VIN
AGND
C458
C460
10uF
10uF
FB
25V
25V
Vout=0.8*(1+R1/R2)
+1.5V_DDR
Q408
AO3438
FRC
OPT
C435
4.7uF
10V
POWER_ON/OFF2_1
+1.5V_DDR_FRC
+1.26V_VDDC
IC403-*1
MP2212DN(Marking)
FB
EN/SYNC
1
8
C411
C409
C456
C486
22uF
330uF
0.1uF
0.1uF
10V
4V
GND
SW_2
OPT
2
7
OPT
IN
SW_1
3
6
BS
VCC
4
5
FRC
GP2_Saturn7M
+3.5V_ST -> 3.375V
+3.5V_ST
+3.5V_ST
R488
100K
IC408
NCP803SN293
R402
POWER_DET
100
VCC
RESET
3
2
1
GND
C474
0.1uF
R404
PD_+12V
100K
IC409
NCP803SN293
PD_+12V
R480
100
VCC
RESET
3
2
1
GND
PD_+12V
Power_DET
+3.3V_Normal
1934 mA
L421
L424
CIC21J501NE
3.6uH
LX_2
8
NR8040T3R6N
LX_1
7
POWER_ON/OFF2_2
EN
C469
C473
C485
6
R1
22uF
0.1uF
0.1uF
R456
16V
10V
16V
10K
COMP
5
OPT
9.1K
C423
2200pF
R454
100pF
C464
50V
R2
MAX 1A
+5V_Normal
IC406
AOZ1072AI
L422
3.6uH
LX_2
1
8
NR8040T3R6N
LX_1
2
7
2A
POWER_ON/OFF2_2
EN
C471
C477
3
6
R1
22uF
0.1uF
R459
10V
16V
10K
COMP
4
5
OPT
12K
C427
2200pF
R458
100pF
C466
50V
R2
+1.5V_FRC_DDR
Ver. 1.2
4
POWER

Advertisement

loading

This manual is also suitable for:

32ld420