Advertisement
THE
SYMBOL MARK OF THIS SCHEMETIC DIAGRAM INCORPORATES
SPECIAL FEATURES IMPORTANT FOR PROTECTION FROM X-RADIATION.
FIRE AND ELECTRICAL SHOCK HAZARDS, WHEN SERVICING IF IS
ESSENTIAL THAT ONLY MANUFACTURES SPECIFIED PARTS BE USED FOR
THE CRITICAL COMPONENTS IN THE
SYMBOL MARK OF THE SCHEMETIC.
Copyright © 2015 LG Electronics. Inc. All rights reserved.
Only for training and service purposes
TOTAL LED DRIVER BLOCK
+19V
C501
C502
C500
10uF
0.1uF
47uF
25V
25V
50V
OPT
OPT
R519
10K
INV_CTL
PWM_DIM
BLU_CURRENT_CTL
P500
SMAW200-04
1
2
3
VOUT#2
4
REDUCE INDUCTOR TEMP ISSUE
To Improve EMI Issue
L501
L502
33uH
33uH
C523
100V
220pF
C524
100V
220pF
+3.3V_Normal
R535
R536
R537
R538
R539
R540
R541
100
100
100
100
100
100
100
R523
R528
3K
1K
IC501
C
1%
R531
C522
R520
100K
DT1641AS
10K
1000pF
[EP]GND
B
TR501
1%
50V
MMBT3904(NXP)
E
EN
VIN
1
24
R522
R525
OVP
VREF
C525
1uF
120K
270K
2
23
32inch
1/8W
1/8W
25V
C521
R529
1%
1%
30K
1000pF
NC_1
CS
3
22
1%
50V
43inch
R529-*1
13K
PGND_1
NDRV
4
21
1%
R521
100
PGND_2
RSS
R545
5
20
220K 1%
R524
C518
100K
100pF
PDIM
COMP
50V
6
19
OPT
R530
RISET
RT
100K
7
18
43inch
32inch
R532
R532-*1
LS8
LS1
15K
12K
8
17
1%
1%
32inch
R533
43inch
LS7
LS2
3.6K
R533-*1
9
16
1%
10K
1%
LS6
LS3
10
15
LS5
LS4
11
14
NC_2
LGND
12
13
C517
C516
C519
R552
33uF
33uF
1uF
100K
100V
100V
100V
43inch
D502
BR210
100V
C526
100V
220pF
C527
100V
220pF
R547
R549
R550
100
100
100
D
+19V
TR502
G
AOD2922
DEV_FET2922
S
C510
1uF
25V
R544
3.3
1/16W
R548
30K 1%
C528
4700pF
50V
R551
R553
C529
R546
0.1
0.1
1.5K 1%
0.1uF
1%
1%
25V
1W
1W
OPT
R542
39K
1%
R543
1.5K
1%
L15.5_ECI_M1A
LED_DRIVER
150112
5
LGE Internal Use Only
Advertisement
