LG 37LV3500 Service Manual page 20

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
MLB-201209-0120P-N2 7 7 7
3.5V
9 9 9 10 10 10
3.5V
11 11 11 12 12 12
C401 C406 C408
GND
13 13 13 14 14 14
100uF
0 . 1 u F 0 . 1 u F
16V GND
16V 16V 15 15 15 16 16 16
12V
OPT
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 . 1 u F
0 . 1 u F
100uF
16V
16V
16V
OPT
L402-*1 SLIM_32~52
CIS21J121 P401
SMAW200-H24S2
<MODULE PIN MAP>
LGD(PSU) IPS-@
CMO10"Lamp SHARP
PIN No AUO 10"Lamp
o r L I P S (PSU) (PSU) (PSU) (PSU)
16
GND GND GND GND
GND
INV_ON A-DIM
18 INV_ON INV_ON INV_ON
52/60:ERROR
20 VBR-A E r r _ o u t
NC E r r _ o u t
26/32HD:NC
26/32/52:PWM
22 PWM_DIM PWM_DIM NC
NC
60:NC
26/32/52:GND
E r r _ o u t
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 32LE5300-TA
LGD LPB/
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
e r r _ o u t e r r _ o u t
20
NC NC
--> NC --> NC
22 PWM_DIM
NC NC
PWM_DIM
e r r _ o u t
e r r _ o u t
PWM_DIM
24 PWM_DIM
--> NC
--> NC
23 NC NC
NC
NC
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 . . .
+5V_USB
+12V/+15V
IC401
AOZ1073AIL-3
PGND LX_2
1 8
VIN LX_1
2 7
3A
AGND EN POWER_ON/OFF2_1
3 6
R410
C405
C410
10K
10uF 10uF FB COMP
25V 4 5
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.
+12V/+15V
NORMAL_32
L407-*1
P404
+24V
FM20020-24 CIS21J121
L407
24V
2 2 2
MLB-201209-0120P-N2
24V
4 4 4
GND
6 6 6
C418
C426
GND 0 . 1 u F
8 8 8 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
0
R451
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 . 1 u F
16V PWM_PULL-DOWN_1K
+3.3V_Normal
POWER_20_ERROR_OUT
R437 100
POWER_24_ERROR_OUT ERROR_OUT
R420 100
OLP
TP5302
TP5303 V_SYNC
TP5304 SCAN_BLK2
TP5305 SCAN_BLK1/OPC_OUT
OPC_OUT
TP5306
< 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
+5V_USB
+3.5V_ST
2000 mA
L406
3.6uH
NR8040T3R6N
OPT
C429 C428
C420 C424
R1
100pF 22uF 0 . 1 u F 0 . 1 u F
50V 16V 16V 16V
OPT
2200pF
C413
R2
PANEL_POWER
0 . 0 1 u F
C442
0 . 0 1 5 u F C409 C438
C436 10uF
0 . 1 u F New item
0 . 0 1 5 u F
0 . 0 1 u F 16V
16V
50V 25V
OPT Q409
AO3407A
C443
10uF
G
25V
R431
C451
0 . 1 u F
22K
50V
1608
OPT
OPT
C
R430
10K
B Q407
2SC3052
C
R429 E
R435
47K
B Q406 22K
2SC3052
E
S7M DDR 1.5V
POWER_ON/OFF1
C475
0 . 1 u F
16V C462
0 . 1 u F
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 . 1 u F
GND_1 PH_1
3 IC407 10
10V 16V 22uF 22uF
TPS54319TRE C465 10V 10V
GND_2 SS/TR
4 9
0 . 0 1 u F
50V
R1
R452
1/16W 330K 5%
R455 C467
4700pF
15K
1/16W 5% 50V
R2
R449
56K
1/16W
3A
1%
$ 0 . 1 4 5
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 . 1 u F
16V
C403
C440
10uF 0 . 1 u F
10V
16V
S 7 M c o r e 1 . 2 6 V v o l t
POWER_ON/OFF2_1
C447
0 . 1 u F
16V
C441
0 . 1 u F
16V
L413
L415
3.6uH
VIN_1 PH_3
1 12
THERMAL
VIN_2 PH_2 NR8040T3R6N
2 11
17
C430 C431
C453 C456
10uF
0 . 1 u F GND_1 PH_1
3 IC403 10
10V 22uF 22uF
16V
SN1007054RTER C488 10V 10V
GND_2 SS
4 9
0 . 0 1 u F
50V
R1
R432
1/16W 330K 5%
C448
R436
3300pF
7.5K
1/16W 5%
50V
R2
R441
75K
4A $ 0 . 1 6 5
1/8W
1%
Vout=0.8*(1+R1/R2)=1.29V
S T _ 3 . 5 V - - > 3 . 3 7 5 V - - > 3 . 4 6 V
2 0 V - - > 3 . 5 1 V - - > 3 . 7 6 V ( 3 . 5 9 V )
+12V/+15V
2 4 V - - > 3 . 7 8 V - - > 3 . 9 2 V ( 3 . 7 9 V )
1 2 V - - > 3 . 5 8 V - - > 3 . 8 2 V ( 3 . 6 8 V )
1 8 . 5 V - - > 3 . 5 V - - > 3 . 7 5 V ( 3 . 5 9 V )
C411
PANEL_VCC 0 . 1 u F
16V
+24V
POWER_+24V
R407
R405
C455 2.2K 2.2K
0 . 1 u F
C412 POWER_+24V
16V
0 . 1 u F
16V
PANEL_DISCHARGE_RES
PD_+12V
PANEL_DISCHARGE_RES
+3.3V_Normal
1074 mA
+12V/+15V
AOZ1073AIL-3
+1.5V_DDR
PGND
1
VIN
2
AGND
3
C457
C459
10uF 10uF FB
C470 25V 4
25V
0 . 1 u F
16V
C463
100pF
50V
Vout=(1+R1/R2)*0.8
+5V_Normal
+12V/+15V
300 mA
C458 C460
10uF 10uF
25V 25V
Vout=0.8*(1+R1/R2)
+1.5V_DDR
Q408
AO3438
FRC
OPT
C435
4 . 7 u F
10V
POWER_ON/OFF2_1
+1.26V_VDDC
C444
0 . 1 u F
16V
50V
100pF
C439
POWER_LARGE
+ 3 . 5 V _ S T - > 3 . 3 7 5 V
+3.5V_ST
+3.5V_ST
R488
100K
IC408
NCP803SN293
R402
POWER_DET
100
VCC RESET
3 2
1
GND C474
0 . 1 u F
R404
PD_+12V
100K
IC409 PD_+12V
NCP803SN293 PD_+12V
R480
100
VCC RESET
3 2
1
GND
Power_DET
+3.3V_Normal
IC405
1934 mA
L424
L421
3.6uH CIC21J501NE
LX_2
8
NR8040T3R6N
LX_1
7
3A
EN POWER_ON/OFF2_2 C485
C469 C473
6 R1
0 . 1 u F
22uF 0 . 1 u F
R456
16V 16V 16V
10K
COMP
5
OPT
12K C423
2200pF
R454 100pF
C464
50V
R2
MAX 1A
+5V_Normal
IC406
AOZ1072AI-3
L422
3.6uH
PGND LX_2
1 8
NR8040T3R6N
VIN LX_1
2 7
2A
POWER_ON/OFF2_2
AGND EN C471 C477
3 6 R1
22uF 0 . 1 u F
R459
10V 16V
10K
FB COMP
4 5
OPT
12K C427
2200pF
R458 100pF
C466
50V
R2
+1.5V_FRC_DDR
+1.5V_DDR_FRC
20101023
GP2R
4