LG 32LV355T Service Manual page 21

FROM LIPS & POWER B/D
+3.5V_ST
RT1P141C-T112
Q402
R406 1 3
4.7K
NORMAL_EXPEPT_32
R401 C P403
2
RL_ON 10K FW20020-24S
B Q401
2SC3052
L404-*1
E
PWR ON
CIS21J121 1 1 1
24V
3 3 3
GND
+3.5V_ST 5 5 5
L404
GND
7 7 7
MLB-201209-0120P-N2
3.5V
9 9 9
3.5V
11 11 11
C401
C406 C408
GND
100uF 13 13 13
0.1uF 0.1uF
16V GND
16V 16V 15 15 15
OPT 12V
17 17 17
12V
19 19 19
+12V/+15V 12V
21 21 21
L402
GND/P.DIM2
23 23 23
MLB-201209-0120P-N2
C404 C407
C402 25 25
0.1uF
0.1uF
100uF
16V
16V
16V
OPT
L402-*1
CIS21J121
<MODULE PIN MAP>
LGD(PSU) IPS-@
CMO10"Lamp SHARP
PIN No AUO 10"Lamp
or LIPS (PSU) (PSU) (PSU) (PSU)
16
GND GND GND GND
GND
18 INV_ON A-DIM 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
24 INV_ON PWM_DIM PWM_DIM
60:PWM
GND GND
23 GND GND GND
<LED MODULE PIN MAP -> latest update 20100618>
32LE5300-TA 32LE4500-TA
LGD LPB/ 32LE5300-TA
CMO10"LED AUO 10"LED
PIN No LGD 10"LED
OS LPB (PSU) (PSU)
(PSU)
16 NC NC NC NC
18 INV_ON INV_ON INV_ON
INV_ON
err_out err_out
20
NC NC
--> NC --> NC
22 PWM_DIM
NC NC
PWM_DIM
err_out
err_out
24 PWM_DIM PWM_DIM
--> NC
--> NC
23 NC NC
NC NC
LGD edge led error-out use or not? checking is necessary...
+5V_USB
+12V/+15V
IC401
AOZ1073AIL-3
PGND LX_2
1 8
VIN LX_1
2 7
C489
0.1uF
3A
POWER_ON/OFF2_1
AGND EN
16V
3 6
R410
C405
C410
10uF
10uF FB COMP
4 5
25V 25V
12K
R413
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.
Copyright © 2011 LG Electronics. Inc. All rights reserved.
Only for training and service purposes
NORMAL_32
L407-*1
P404
CIS21J121 +24V
FM20020-24
L407
24V
2 2 2 MLB-201209-0120P-N2
24V
4 4 4
GND
6 6 6
C418
C426
GND
8 8 8 0.1uF
68uF
50V
3.5V 35V
10 10 10
3.5V
12 12 12
PANEL_CTL
GND
14 14 14
GND/V-sync 1:AK10
16 16 16
INV ON
18 18 18
A.DIM
20 20 20
+3.3V_Normal
P.DIM1
22 22 22
Err OUT
24 24 24
+3.5V_ST
R419
1K
POWER_18_INV_CTL
R415
100
R426
OPT
10K
SLIM_32~52
R425
P401
100
C
SMAW200-H24S2
R418 R421
POWER_24_INV_CTL
10K INV_CTL
B
6.8K
OPT Q405
E 2SC3052
R427
10K
POWER_18_A_DIM OPT
R451 0
POWER_22_A_DIM
R485 0
A_DIM
POWER_20_A_DIM
0
R453
POWER_20_PWM_DIM
POWER_24_PWM_DIM R484 PWM_DIM
0
R472 0
R471 0
PWM_PULL-DOWN_3.9K
POWER_22_PWM_DIM
R606
3.9K
OPT C416 R606-*1
1K
0.1uF
16V PWM_PULL-DOWN_1K
+3.3V_Normal
POWER_20_ERROR_OUT
R437 100
POWER_24_ERROR_OUT ERROR_OUT
100
R420
OLP
TP5302
V_SYNC
TP5303
TP5304 SCAN_BLK2
TP5305 SCAN_BLK1/OPC_OUT
TP5306 OPC_OUT
<Module Inv to Main Pin Connection>
INV <--> MAIN
#11 <--> #24
#12 <--> #18
#13 <--> #20
#14 <--> #22
+5V_USB
2000 mA
L406
3.6uH
NR8040T3R6N
OPT
C429 C420 C424 C428
R1
100pF 0.1uF
22uF 0.1uF
50V 16V
16V 16V
10K
OPT
2200pF
C413
R2
+12V/+15V
0.01uF C442
C409 C438
0.015uF
10uF
C436 0.1uF New item
0.015uF
0.01uF 16V
50V 16V
25V
OPT
Q409
AO3407A
C443
10uF
G
25V
R431 C451
0.1uF
22K
50V
1608
OPT
OPT
C
R430
10K B Q407
2SC3052
C
E
R429 R435
47K
B Q406 22K
2SC3052
E
S7M DDR 1.5V
POWER_ON/OFF1
C475
0.1uF
+3.5V_ST
C462
16V
0.1uF
16V
L420
L423
3.6uH
VIN_1 PH_3
1 12
THERMAL
VIN_2 PH_2 NR8040T3R6N
2 17 11
C461 C468
C472 C476
10uF 0.1uF
GND_1 PH_1
3 IC407 10
10V 16V 22uF 22uF
TPS54319TRE C465 10V 10V
GND_2 SS/TR
4 9
0.01uF
50V
R1
R452
1/16W 330K 5%
C467
R455
15K 4700pF
1/16W 5% 50V
R2
3A
$ 0.145
Vout=0.827*(1+R1/R2)=1.521V
+2.5V/+1.8V
+3.3V_Normal
IC402
+2.5V_Normal
AZ2940D-2.5TRE1
VIN VOUT
1 3
Vd=550mV
2
GND
C432
0.1uF
16V
C403
C440
10uF 0.1uF
10V
16V
S7M core 1.26V volt
POWER_ON/OFF2_1
C447
0.1uF
+3.5V_ST 16V
C441
0.1uF
16V
L413
L415
3.6uH
VIN_1 PH_3
1 12
THERMAL
VIN_2 PH_2 NR8040T3R6N
2 11
C430 17
C431
C453 C456
10uF 0.1uF
GND_1 PH_1
3 IC403 10 22uF 22uF
10V
16V
SN1007054RTER
C488 10V 10V
GND_2 SS
4 9
0.01uF
50V
R1
R432
1/16W 330K 5%
R436 C448
7.5K 3300pF
1/16W 5% 50V
R2
4A $ 0.165
Vout=0.8*(1+R1/R2)=1.29V
ST_3.5V--> 3.375V --> 3.46V
20V-->3.51V --> 3.76V (3.59V)
PANEL_POWER
24V-->3.78V --> 3.92V (3.79V)
12V -->3.58V --> 3.82V (3.68V)
18.5V-->3.5V --> 3.75V (3.59V)
R405-*1 R407-*1
3K 3K
PANEL_DISCHARGE_RES
PANEL_DISCHARGE_RES
C411
PANEL_VCC 0.1uF
16V
+24V
POWER_+24V
R405 R407
C455
2.2K 2.2K
0.1uF
POWER_+24V
16V C412
OPT 0.1uF
16V
PD_+12V
OPT
+3.3V_Normal
1074 mA
+12V/+15V
+1.5V_DDR
PGND
VIN
C492
0.1uF
AGND
16V
C457
C459
10uF 10uF FB
C470 25V
25V
0.1uF
16V
C463
100pF
50V
Vout=(1+R1/R2)*0.8
R449
56K
1/16W
1%
+12V/+15V
300 mA
C458 C460
10uF 10uF
25V 25V
Vout=0.8*(1+R1/R2)
IC410
AP1117EG-13
IN OUT
ADJ/GND
C491 110
0.1uF 330
R417
50V R411
C421,C422 Close to LDO
+1.26V_VDDC
+1.5V_DDR
Q408
C444
AO3438
0.1uF
FRC
16V
50V
100pF
OPT
C439 C435
4.7uF
10V
POWER_ON/OFF2_1
R441
75K
1/8W
1%
+12V/+15V +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
PWR_DET_ON_SEMI
0.1uF
R404
PD_+12V
100K
IC409
NCP803SN293 PD_+12V
R480
VCC RESET 100
3 2
1
GND
PD_+12V_PWR_DET_ON_SEMI
Power_DET
+3.3V_Normal
IC405
1934 mA
AOZ1073AIL-3
L421 L424
CIC21J501NE
3.6uH
LX_2
1 8
NR8040T3R6N
LX_1
2 7
3A
EN POWER_ON/OFF2_2
C469 C473
3 6
R1
22uF 0.1uF
R456
16V 16V
10K
COMP
4 5
OPT
12K C423
2200pF
R454 100pF
C464
50V
R2
+5V_Normal
MAX 1A
IC406
AOZ1072AI-3
L422
3.6uH
PGND LX_2
1 8
NR8040T3R6N
VIN LX_1
2 7
C490
0.1uF 2A
POWER_ON/OFF2_2
AGND EN
C471
16V 3 6 R1
22uF
R459 C477
16V
10K
0.1uF
FB COMP
16V
4 5
OPT
12K C427
2200pF
R458 100pF
C466
50V
R2
+5V_TUNER
IC411
+5V_Normal
AP1117EG-13
IN OUT
R422 ADJ/GND
1 R424
1
5%
5%
110
C414 C422
C415
R408 C417
0.1uF 0.1uF 330 C419
10uF
0.1uF 10uF
16V 10V 50V R409
16V 10V
+1.5V_FRC_DDR
+1.5V_DDR_FRC
20101023
GP2R
POWER_LARGE 4
LGE Internal Use Only
C485
0.1uF
16V