Read LG 32LV3400-UA (CHASSIS:LA01U) Service Manual online
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.
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 . 1 u F
16V
C462
0 . 1 u F
16V
16V
C432
1/16W 330K 5%
R452
51K
1%
R465
AOZ1072AI-3
IC406
3
AGND
2
VIN
4
FB
1
PGND
5
COMP
6
EN
7
LX_1
8
LX_2
100
R480
PD_+12V
PANEL_VCC
TP5302
0 . 1 u F
16V
16V
C477
0 . 1 u F
16V
16V
C470
0 . 1 u F
16V
16V
C411
V_SYNC
4.7K
R486
OPT
AO3438
Q408
FRC
G
D
S
5.6K
R440
10uF
25V
25V
C405
22uF
10V
C476
1/16W
15K
5%
R455
0 . 1 u F
16V
C416
OPT
100pF
50V
OPT
C423
2200pF
C413
NR8040T3R6N
3.6uH
L422
PWM_DIM
100pF
50V
50V
C463
0 . 1 u F
16V
C441
0
POWER_23_GND
R476
22K
R431
1/16W
56K
1%
R449
+3.5V_ST
100pF
50V
OPT
C427
10K
R445
0 . 1 u F
16V
C407
OPT
10uF
10V
10V
C430
ERROR_OUT
+3.3V_Normal
+3.5V_ST
L420
A_DIM
0 . 1 u F
16V
16V
C431
L413
SCAN_BLK1/OPC_OUT
L417
2.2K
R407
PANEL_DISCHARGE_RES
L412
+3.3V_Normal
10K
1%
R462
22uF
16V
16V
C420
10K
R459
3.9K
R606
PWM_PULL-DOWN_3.9K
RT1P141C-T112
Q402
1
2
3
33K
R439
10uF
10V
10V
C461
0 . 1 u F
16V
16V
C473
AO3407A
Q409
G
D
S
100
R415
POWER_18_INV_CTL
1.5K
1%
R416
0 . 1 u F
16V
16V
C455
0
POWER_22_A_DIM
R485
1K
R419
10K
R456
2SC3052
Q406
E
B
C
10K
R464
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
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
+12V/+15V
0 . 1 u F
16V
16V
C438
AOZ1073AIL-3
IC401
3
AGND
2
VIN
4
FB
1
PGND
5
COMP
6
EN
7
LX_1
8
LX_2
47K
1
%
R457
10uF
25V
25V
C410
51K
1%
R414
100K
R404
PD_+12V
POWER_ON/OFF2_2
INV_CTL
POWER_ON/OFF2_1
+24V
1608
0 . 1 u F
50V
50V
C451
OPT
10K
R443
FRC
0 . 1 u F
16V
16V
C428
OPT
0 . 1 u F
16V
16V
C408
OPT
100K
R488
L416
TP5305
+12V/+15V
POWER_DET
2SC3052
Q401
E
B
C
4.7K
1%
R461
POWER_ON/OFF2_2
PANEL_CTL
1:AK10
OPC_OUT
+12V/+15V
10K
R401
NR8040T3R6N
3.6uH
L415
0 . 1 u F
16V
16V
C440
100uF
16V
C401
10K
OPT
OPT
R427
10K
R463
OPT
0
POWER_20_PWM_DIM
R484
0 . 1 u F
C474
0
POWER_24_GND
R475
27K
1%
R460
4.7K
R406
+2.5V_Normal
22uF
10V
C453
POWER_ON/OFF1
12K
R458
+1.5V_FRC_DDR
0 . 1 u F
16V
16V
C468
4.7uF
OPT
C445
TP5304
SCAN_BLK2
4 . 7 u F
10V
OPT
C435
NR8040T3R6N
3.6uH
L423
+12V/+15V
+3.5V_ST
0 . 1 u F
16V
16V
C406
0 . 1 u F
16V
16V
C444
2.2K
R405
PANEL_DISCHARGE_RES
POWER_ON/OFF2_1
22uF
10V
C472
1.5K
1%
R466
+3.5V_ST
10K
R426
OPT
120K
OPT
R434
1/16W
7.5K
5%
R436
1
R473
1/16W 330K 5%
R432
OLP
0 . 1 u F
16V
C475
MLB-201209-0120P-N2
L404
0 . 1 u F
16V
C404
10K
1%
R467
100pF
50V
C439
L401
4700pF
50V
C467
+24V
+3.5V_ST
22K
1%
R444
+5V_Normal
+5V_USB
+3.3V_Normal
10K
R410
0 . 1 u F
16V
16V
C412
PD_+12V
RL_ON
+1.5V_DDR
CIC21J501NE
L424
0
POWER_20_A_DIM
R453
+3.5V_ST
+12V/+15V
TP5303
3300pF
50V
C448
2SC3052
Q407
E
B
C
MLB-201209-0120P-N2
L407
+3.3V_Normal
100
POWER_20_ERROR_OUT
R437
0
POWER_18_A_DIM
R451
+3.5V_ST
POWER_ON/OFF2_1
10K
R421
24K
1
%
R442
10uF
10V
10V
C403
100uF
16V
C402
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
10uF
16V
OPT
16V
OPT
C442
100
POWER_24_INV_CTL
R425
0
POWER_22_PWM_DIM
R471
68uF
35V
C426
100
R402
0 . 0 1 u F
25V
C436
0 . 0 1 u F
NR8040T3R6N
3.6uH
L406
0
POWER_16_GND
R412
+12V/+15V
0 . 1 u F
16V
16V
C424
47K
R429
0 . 1 u F
16V
16V
C485
AZ2940D-2.5TRE1
IC402
2
GND
3
VOUT
1
VIN
1/8W
75K
1%
R441
2SC3052
Q405
E
B
C
10K
OPT
R430
R430
+1.26V_VDDC
0 . 1 u F
50V
C418
22uF
10V
10V
C471
22K
R435
NR8040T3R6N
3.6uH
L421
10K
1%
R423
6.8K
OPT
R418
0 . 1 u F
16V
C447
AOZ1073AIL-3
IC405
3
AGND
2
VIN
4
FB
1
PGND
5
COMP
6
EN
7
LX_1
8
LX_2
22uF
10V
C456
0
POWER_24_PWM_DIM
R472
100
R420
POWER_24_ERROR_OUT
+1.5V_DDR
100pF
50V
OPT
C429
TP5306
2200pF
C466
NCP803SN293
IC409 PD_+12V
1
GND
3
VCC
2
RESET
NCP803SN293
IC408
1
GND
3
VCC
2
RESET
THERMAL
TPS54319TRE
IC407
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]
0
5%
PD_+3.5V
R450
8.2K
1%
R482
POWER_+24V
1.5K
1%
R403
POWER_+24V
0 . 0 1 u F
50V
C465
0 . 0 1 u F
50V
C488
MLB-201209-0120P-N2
L402
CIS21J121
L402-*1
CIS21J121
L404-*1
CIS21J121
L407-*1
2.7K
1%
PD_+12V
R448
1/10W
1.21K
1%
R447
PD_+12V
10uF
25V
C443
10uF
25V
25V
C457
10uF
25V
25V
C458
10uF
25V
25V
C459
10uF
25V
25V
C460
0 . 0 1 5 u F
50V
50V
C409
0 . 0 1 5 u F
12K
R454
12K
R413
22uF
16V
16V
C469
2200pF
C464
THERMAL
SN1007054RTER
IC403
1
VIN_1
3
GND_1
7
COMP
9
SS
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]
1K
R606-*1
PWM_PULL-DOWN_1K
16
R1
PIN No
L G D e d g e l e d e r r o r - o u t u s e o r n o t ? c h e c k i n g i s n e c e s s a r y . . .
INV_ON
New item
26/32/52:GND
2 4 V - - > 3 . 7 8 V - - > 3 . 9 2 V ( 3 . 7 9 V )
2000 mA
INV_ON
26/32/52:PWM
NC
CMO10"LED
NC
GND
e r r _ o u t
(PSU)
V o u t = ( 1 + R 1 / R 2 ) * 0 . 8
3A
NC
GND
<LED MODULE PIN MAP -> latest update 20100618>
$ 0 . 1 4 5
e r r _ o u t
23
GND
GND
1 8 . 5 V - - > 3 . 5 V - - > 3 . 7 5 V ( 3 . 5 9 V )
NC
SHARP
e r r _ o u t
INV_ON
e r r _ o u t
AUO 10"Lamp
NC
4A
INV_ON
A-DIM
MAX 1A
V o u t = 0 . 8 * ( 1 + R 1 / R 2 )
LGD LPB/
+ 3 . 5 V _ S T - > 3 . 3 7 5 V
23
<MODULE PIN MAP>
INV_ON
GND
+3.3V_Normal
o r L I P S
PANEL_POWER
NC
CMO10"Lamp
+5V_Normal
S7M DDR 1.5V
26/32HD:NC
S 7 M c o r e 1 . 2 6 V v o l t
(PSU)
NC
INV_ON
E r r _ o u t
PWM_DIM
NC
22
(PSU)
OS LPB
(PSU)
24
AUO 10"LED
18
2A
32LE5300-TA
1934 mA
32LE4500-TA
LGD(PSU)
NC
R1
VBR-A
(PSU)
NC
E r r _ o u t
GND
PWM_DIM
20
NC
2 0 V - - > 3 . 5 1 V - - > 3 . 7 6 V ( 3 . 5 9 V )
60:PWM
INV_ON
300 mA
PWM_DIM
GND
PWM_DIM
NC
INV_ON
Vout=0.8*(1+R1/R2)=1.29V
PWM_DIM
E r r _ o u t
LGD 10"LED
1 2 V - - > 3 . 5 8 V - - > 3 . 8 2 V ( 3 . 6 8 V )
R1
52/60:ERROR
R2
R2
GND
--> NC
GND
S T _ 3 . 5 V - - > 3 . 3 7 5 V - - > 3 . 4 6 V
+5V_USB
R2
NC
20
3A
32LE5300-TA
22
$ 0 . 1 6 5
--> NC
IPS-@
16
--> NC
FROM LIPS & POWER B/D
60:NC
Power_DET
R1
R2
18
PWM_DIM
3A
--> NC
1074 mA
24
PWM_DIM
V o u t = ( 1 + R 1 / R 2 ) * 0 . 8
INV_ON
(PSU)
PIN No
+2.5V/+1.8V
R1
+1.5V_DDR_FRC
Vd=550mV
R2
GND
NC
PWM_DIM
NC
(PSU)
Vout=0.827*(1+R1/R2)=1.521V
20101023
GP2R
POWER_LARGE
4
< M o d u l e I n v t o M a i n P i n C o n n e c t i o n >
INV <--> MAIN
# 1 1 < - - > # 2 4
# 1 2 < - - > # 1 8
# 1 3 < - - > # 2 0
# 1 4 < - - > # 2 2
# 1 1 < - - > # 2 4
# 1 2 < - - > # 1 8
# 1 3 < - - > # 2 0
# 1 4 < - - > # 2 2
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