LG 24MT45V, Service Manual

Page: 18 / 31

THERMAL
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.
POWER
2013/09/16
4 13
MA55
R425
0
5%
R423
10K
1%
C414
0.1uF
50V
R409
10K
C406
0.1uF
50V
C417
0.1uF
16V
R419
33K
R445
10K
1%
R402
47K
OPT
PANEL_CTL
L401
10uH
R436
4.7K
C422
10uF
16V
IC401
MP2315GJ
3
SW
2
IN
4
GND
1
AAM
5
BST
6
EN/SYNC
7
VCC
8
FB
C401
10uF
25V
OPT
MULTI_ON
R422
100K
1%
C408
0.1uF
50V
C412
0.1uF
50V
R440
22K
C407
0.1uF
50V
C413
0.1uF
50V
C402
10uF
25V
OPT
+3.3V_ST
C426
10uF
10V
OPT
C423
22uF
6.3V
R434
100K
IC400
MP2315GJ
3
SW
2
IN
4
GND
1
AAM
5
BST
6
EN/SYNC
7
VCC
8
FB
+12V_Normal
R404
47K
OPT
Q402
PMV48XP
G
D
S
+1.15V_VDDC
JP401
C429
0.1uF
16V
IC404
TJ4220GDP-ADJ
3
VIN3
2
EN2
4
NC4
1
NC_1
5
NC_2
6
VOUT
7
ADJ/SENSE
8
GND
9
[EP]GND
L402
10uH
R427
5.1K
1%
C438
0.1uF
16V
R429
10K
1%
C435
0.01uF
25V
+3.3V_ST
C434
1uF
10V
OPT
R444 10K
1%
C419
0.1uF
16V
JK400
KJA-DC-1-0032
1
2
4
R443 1K
1%
R410
2K
OPT
R439
10K
R413
2K
OPT
C418
0.1uF
16V
R438
100
C400
47uF
25V
105C
+12V_Normal
+12V_PANEL_POWER
+1.5V_DDR
+3.3V_Normal
POWER_ON/OFF1
C421
22uF
6.3V
R418
33K
R403
47K
+3.3V_ST
C433
10uF
10V
C425
10uF
10V
OPT
+3.3V_Normal
R412
20K
Q403
AO3407A
G
D
S
C424
10uF
16V
Q400
MMBT3904(NXP)
E
B
C
C430
0.1uF
16V
JP400
+19V
R426
10K
1%
R428
27K
1%
R424
4.7K
1%
R421
43K
1%
+3.3V_Normal
IC402
MP2315GJ
3
SW
2
IN
4
GND
1
AAM
5
BST
6
EN/SYNC
7
VCC
8
FB
C437
10uF
10V
OPT
Q401
MMBT3904(NXP)
E
B
C
R411
100K
C428
0.1uF
16V
R437
0
HD(12V Panel)
+5V_Normal
R446
0
HD(12V Panel)
+5V_PANEL_POWER
R420
33K
R405
47K
OPT
C427
10uF
10V
C431
10uF
10V
C432
0.1uF
16V
IC403
MP2315GJ
3
SW
2
IN
4
GND
1
AAM
5
BST
6
EN/SYNC
7
VCC
8
FB
C416
0.1uF
50V
L403
10uH
+5V_Normal
C420
0.1uF
16V
C411
0.1uF
50V
C410
0.47uF
16V
OPT
C440
4.7uF
16V
C436
1uF
16V
HD(12V Panel)/23.6"FHD
R401
10K
+3.3V_ST
R417
2K
OPT
C415
0.1uF
16V
R408
68
R407
68
R406
68
R415
68
R416
75K
1%
R441
100K
NON_23.6"FHD
R442
10K
FHD(5V Panel)
C404
2.2uF
25V
C405
2.2uF
25V
C403
2.2uF
25V
C409
2.2uF
25V
R400
10K
R414
10K
R433
10K
R430
39K
1%
R431
15K
1%
R432
10K
1%
R447
0
FHD(5V Panel)
R435
0
FHD(5V Panel)
LED_AMBER
MULTI_ON
D400
MMBD6100
A2
C
A1
Q404
MMBT3904(NXP)
FHD_NON 23.6"E
B
C
R3466 1K
FHD_NON 23.6"
R3467
0
FHD_NON 23.6"
L400
4.7uH
C439
4.7uF
10V
R441-*1
22K
23.6"FHD
R442-*1
4.7K
HD(12V Panel)
R442-*2
2.7K
23.6"FHD
PANEL POWER CONTROL
19V to 1.15V (M1 Core)
6604->6601
11.11.07
3.3V TO 1.5V LDO(DDR Power)
Check the Ripple
19V TO 5V DCDC CONVERTER
19V to 12V (For HD Panel)
R441 M.OPT
R442 M.OPT
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Only for training and service purposes LGE Internal Use Only