LG 32LK450 Service Manual page 46

FROM LIPS & POWER B/D
+3.5V_ST
RT1P141C-T112
Q402
R406 3
1
4.7K
NORMAL_EXPEPT_32 NORMAL_32
R401 C P403
P404
2
RL_ON 10K FW20020-24S FM20020-24
B Q401
2SC3052
L404-*1
E
PWR ON
CIS21J121 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
OPT 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
OPT
L402-*1 SLIM_32~52
P401
CIS21J121
SMAW200-H24S2
<MODULE PIN MAP>
LGD(PSU) SHARP IPS-@
CMO10"Lamp AUO 10"Lamp
PIN No
or LIPS (PSU) (PSU) (PSU) (PSU)
16
GND GND GND GND GND
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
22 PWM_DIM PWM_DIM NC
NC
60:NC
26/32/52:GND
Err_out
INV_ON PWM_DIM PWM_DIM
24 60:PWM
GND GND
23 GND GND GND
<LED MODULE PIN MAP -> latest update 20100618>
32LE5300-TA 32LE4500-TA
LGD LPB/ 32LE5300-TA
AUO 10"LED
PIN No CMO10"LED
LGD 10"LED
OS LPB (PSU) (PSU)
(PSU)
16 NC NC NC NC
INV_ON
18 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
L406
3.6uH
PGND LX_2
1 8
NR8040T3R6N
VIN LX_1
2 7
3A
POWER_ON/OFF2_1
AGND EN
3 6
R410
C405 C410
10K
10uF 10uF FB COMP
25V 4 5
25V
12K
2200pF
R413
C413
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
L407-*1
+24V
CIS21J121
L407
24V
MLB-201209-0120P-N2
24V
GND
C418
C426
GND
0.1uF 68uF
3.5V 50V 35V
3.5V
PANEL_CTL
GND
GND/V-sync 1:AK10
INV ON
A.DIM
+3.3V_Normal
P.DIM1
Err OUT
+3.5V_ST
R419
1K
POWER_18_INV_CTL
R415
100 R426
OPT
10K
R425
100
C
R418 R421
POWER_24_INV_CTL 10K INV_CTL
B
6.8K
OPT Q405
+3.5V_ST
E 2SC3052
R427
10K
POWER_18_A_DIM OPT
R451 0
POWER_22_A_DIM L420
R485 0
POWER_20_A_DIM A_DIM
R453 0
POWER_20_PWM_DIM
POWER_24_PWM_DIM R484 PWM_DIM
0
R472 0
C461
10uF
R471 0
PWM_PULL-DOWN
POWER_22_PWM_DIM 10V
R606
3.9K
OPT C416
0.1uF
16V
+3.3V_Normal
POWER_20_ERROR_OUT
R437 100
POWER_24_ERROR_OUT ERROR_OUT
100
R420
OLP
TP5302
TP5303 V_SYNC
TP5304 SCAN_BLK2
TP5305 SCAN_BLK1/OPC_OUT
+3.3V_Normal
TP5306 OPC_OUT
<Module Inv to Main Pin Connection>
INV <--> MAIN
#11 <--> #24
#12 <--> #18
#13 <--> #20
#14 <--> #22
+5V_USB
+3.5V_ST
2000 mA
L413
C430
10uF
10V
OPT
C429 C420 C424 C428
R1
100pF 22uF 0.1uF 0.1uF
50V 16V
16V 16V
OPT
R2
PANEL_POWER
0.01uF
C442
C409 C438
0.015uF
C436 10uF
0.1uF New item
0.015uF
0.01uF 16V
16V
50V 25V
OPT Q409
AO3407A
C443
10uF
G
25V
R431 C451
0.1uF
22K
50V
1608
OPT
OPT
C
R430
10K B Q407
2SC3052
C455
0.1uF
C
R429 E
R435 16V
47K B Q406
22K
2SC3052
E
S7M DDR 1.5V
1074 mA
POWER_ON/OFF1
C475
0.1uF
C462
16V
0.1uF
16V
L423
3.6uH
VIN_1 PH_3
1 12
THERMAL
VIN_2 PH_2 NR8040T3R6N
2 17 11
C468
0.1uF C472 C476
GND_1 PH_1
3 IC407 10
22uF 22uF
16V
TPS54319TRE C465 10V 10V
GND_2 SS/TR
4 9
0.01uF
50V
R1
R452
1/16W 330K 5%
R455 C467
4700pF
15K
1/16W 5%
50V
R2
R449
56K
1/16W
3A
1%
$ 0.145
Vout=0.827*(1+R1/R2)=1.521V
+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
POWER_ON/OFF2_1
C447
0.1uF
16V
C441
0.1uF
16V
L415
3.6uH
VIN_1 PH_3
1 12
THERMAL
VIN_2 PH_2 NR8040T3R6N
2 11
17
C431
C453 C456
0.1uF
GND_1 PH_1
3 IC403 10 22uF 22uF
16V
SN1007054RTER
C488 10V 10V
GND_2 SS
4 9
0.01uF
50V
50V
100pF
R1 C439
R432
1/16W 330K 5%
C448
R436
7.5K 3300pF
1/16W 5% 50V
R2
R441
75K
4A $ 0.165 1/8W
1%
Vout=0.8*(1+R1/R2)=1.29V
ST_3.5V--> 3.375V --> 3.46V
20V-->3.51V --> 3.76V (3.59V)
+12V/+15V
24V-->3.78V --> 3.92V (3.79V)
12V -->3.58V --> 3.82V (3.68V)
18.5V-->3.5V --> 3.75V (3.59V)
C411
PANEL_VCC 0.1uF
16V
+24V
POWER_+24V
R407
R405
2.2K 2.2K
C412 POWER_+24V
0.1uF
16V
PANEL_DISCHARGE_RES
PD_+12V
PANEL_DISCHARGE_RES
+3.3V_Normal
+12V/+15V
IC405
AOZ1073AIL-3
+1.5V_DDR
PGND
1 8
VIN
2 7
3A
AGND
3 6
C457 C459
10uF
10uF FB
4 5
C470 25V 25V
0.1uF
16V
C463
100pF
50V
Vout=(1+R1/R2)*0.8
+5V_Normal
+12V/+15V
AOZ1072AI-3
PGND
1
VIN
2
AGND
3
C458 C460
10uF 10uF
FB
25V 25V
4
Vout=0.8*(1+R1/R2)
+1.5V_DDR
Q408
AO3438
FRC
OPT
C435
4.7uF
10V
POWER_ON/OFF2_1
+1.26V_VDDC
+1.5V_DDR_FRC
C444
0.1uF
16V
POWER_LARGE
+3.5V_ST -> 3.375V
+3.5V_ST
+3.5V_ST
R488
100K
IC408
APX803D29
R402
POWER_DET
100
VCC RESET
3 2
1
C474
GND PWR_DET_DIODES
0.1uF
IC408-*1
NCP803SN293
PWR_DET_ON_SEMI
R404
PD_+12V RESET VCC
2 3
100K
1
IC409
GND
APX803D29
PD_+12V
IC409-*1
R480
NCP803SN293
100
VCC RESET
3 2 PD_+12V_PWR_DET_ON_SEMI
1 RESET VCC
2 3
GND
1
PD_+12V_PWR_DET_DIODES
GND
Power_DET
+3.3V_Normal
1934 mA
L424
L421
CIC21J501NE
3.6uH
LX_2
NR8040T3R6N
LX_1
POWER_ON/OFF2_2
EN C469 C473 C485
R1
0.1uF
22uF 0.1uF
R456
16V
16V 16V
10K
COMP
OPT
12K C423
2200pF
R454 100pF
C464
50V
R2
MAX 1A
+5V_Normal
IC406
L422
3.6uH
LX_2
8
NR8040T3R6N
LX_1
7
2A
POWER_ON/OFF2_2
EN C471 C477
6 R1
22uF 0.1uF
R459
10V 16V
10K
COMP
5
OPT
12K C427
2200pF
R458 100pF
C466
50V
R2
+1.5V_FRC_DDR
20101023
GP2R
4