LG 22LF4520, Руководство по обслуживанию

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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.
C540
0.1uF
16V
JP500
+3.3V_ST
R514
68
C503
2.2uF
25V
R511
20K
R522
10K
1%
HD(12V Panel)
R512
2K
OPT
C513
0.1uF
50V
JK500
KJA-DC-1-0032
1
2
4
MULTI_ON
R540
4.7K
R515
75K
1%
C508
0.1uF
50V
C534
4.7uF
10V
C524
10uF
16V
HD(12V Panel)
R531
10K
1%
R523
4.7K
1%
C536
1uF
10V
OPT
R524
0
C502
10uF
25V
OPT
R545
100K
C512
0.1uF
50V
HD(12V Panel)
C509
2.2uF
25V
+1.15V_VDDC
C532
0.1uF
16V
R509
2K
OPT
R546
10K
FHD_Panel
C517
0.1uF
16V
HD(12V Panel)
+5V_PANEL_POWER
C514
0.1uF
50V
C522
10uF
16V
HD(12V Panel)
C511
0.1uF
50V
R520
43K
1%
HD(12V Panel)
Q500
MMBT3904(NXP)
E
B
C
JP501
R538
100K
R510
100K
R517
33K
HD(12V Panel)
R544
22K
C525
10uF
10V
OPT
R508
10K
HD(12V Panel)
L502
10uH HD(12V Panel)
+12V_PANEL_POWER
C505
2.2uF
25V
C516
0.1uF
50V
R542
100
C515
0.1uF
16V
C538
1uF
16V
HD_Panel
R543
10K
+5V
C507
0.1uF
50V
+3.3V
+3.3V_ST
L503
10uH
C529
0.1uF
16V
C526
10uF
10V
OPT
C506
0.1uF
50V
HD(12V Panel)
R513
10K
Q502
PMV48XP
G
D
S
C527
10uF
10V
+5V
R507
68
+19V
Q501
MMBT3904(NXP)
E
B
C
C500
47uF
25V
105C
+12V_Normal
POWER_ON/OFF1
L501
10uH
R537
10K
C504
2.2uF
25V
HD(12V Panel)
C520
0.1uF
16V
C501
10uF
25V
OPT
R519
33K
R506
68
C531
10uF
10V
R521
100K
1%
HD(12V Panel)
+3.3V_ST
R505
68
HD(12V Panel)
C510
0.47uF
16V
OPT
R518
33K
PANEL_CTL
+12V_Normal
C519
0.1uF
16V
C530
0.1uF
16V
C518
0.1uF
16V
R525
10K
1%
R549
10K
R559
1K
+1.8V_DDR
+3.3V
R551
0
FHD_Panel
R550
0
HD_Panel
R541
0
HD_Panel
R539
0
FHD_Panel
Q504
MMBT3904(NXP)
FHD_Panel
E
B
C
R567 0
FHD_Panel
R588 1K
FHD_Panel
ZD302
5V
ZD300
5V
OPT
ZD301
2.5V
OPT
+3.3V_ST
10uF
C533
10V
IC504
AZ1117EH-ADJTRG1
ADJ/GND
OUT IN
10uF
C537
10V
R532
0
R500
330
1/10W
1%
R516
150
1/16W
1%
R546-*1
4.7K
HD Panel_21.5"AUO FHD
C535
4.7uF
16V
FHD_Panel
Q503
AO3407B
G
D
S
L500
4.7uH
MULTI_ON
C528
0.1uF
25V
HD(12V Panel)
R528 1K 1%
R526
1.6K
1%
R527
1.6K
1%
IC502
MP2315GJ
3
SW
2
IN
4
GND
1
AAM
5
BST
6
EN/SYNC
7
VCC
8
FB
R503
47K
C523
22uF
16V
C521
22uF
16V
IC500
MP2315GJ
HD(12V Panel)
3
SW
2
IN
4
GND
1
AAM
5
BST
6
EN/SYNC
7
VCC
8
FB
IC501
MP2315GJ
3
SW
2
IN
4
GND
1
AAM
5
BST
6
EN/SYNC
7
VCC
8
FB
IC503
MP2315GJ
3
SW
2
IN
4
GND
1
AAM
5
BST
6
EN/SYNC
7
VCC
8
FB
R504
47K
R502
47K
R501
47K
OPT
R529
47K
1%
R530
8.2K
1%
Power
L15
6
2012-06-01
7
3A
3A
PANEL POWER CONTROL
19V to 12V (For HD Panel)
3A
For Module Power Sequence
R441 : 22k --> 100k
R442 : 1k --> 10k _ 2.7K??
3A
13.06.28
Check the Ripple
R2
1.3A
Vout=1.25*(1+R2/R1)+Iadj*R2
R1
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