NEC MultiSync 20WGX2 Series Service Manual page 139

2
MODEL LCD 20WGX SCHEMATIC DIAGRAM - Power (5/5)
A3963WV2-A3P
P801 C806
F801
1
0.47U/275V
L
T802
3.15AH250V
ET-24
3
C802
G
1000P/250V
R802
C803
2 1M
0.47U/275V
N 1/4W
MGF
C808
G801 1000P/250V
CON3
GND
L801
R801
T803
SCK105
280uH
RING CHOHE
D802
GBU4K R821
1M
C856
RM1206
1uF/450V
C832
MEF/P15
4700P 1KV
1 + 4
-
X7R
C855
R867
1uF/450V
1M
MEF/P15
RM1206
C830
4700P 1KV
X7R
C805 1000P/250V
R822
C836 1000P/250V
18K 0805
R824
2M
1/4W
MGF
R825
649K-F
0805
1/10W
VCC
Q808
A733
+
C835
R856
1uF/50V
100K
R827 R853
I813
10K 1/2W 10K
R833
LTV817
RM 0805
4 1 470
3
C862
Q805 3 2
2 0.1 0805
C945 X7R
R854
1
100K
RM0805
D881
1N4148
R881
2M
Q881
1/4W
BT169 ZD881
MGF
27C
2
R883 R882
C881
200K-F 127K-F
0.47U/50VK
0805 0805
X7R 1206
1/10W 1/10W
3
5
SG6841
4
1
R835
30.1K 1%
0805 1/10W
ER2819 D807
ER306
Q803
FQPF13N50C +
C801
C816
R817
150U/450V
D808 4700P 1KV
56K 0805 R812
1 2
X7R
1
C822
15 MOF
1N4148
ZD804 470P
I809
22B 1KV X7R
R851 47 MOF
R866
5 7
4
8
L6562 470 0805
R810
1
3
6 2 C864
0.27/2W
1000P 0805
R855
C818
+
C817 X7R
1000P 0805 C812
1uF 0805
20K
X7R 10uF/50V
0805 16V X7R-K
1/8W
C823
0.22uF 0805
R852 16V X7R
33
R807
R811
16K 1%
3.3
0805
1/8W
C807
10uF/50V
I801
ZD803
27C 3 7
Q804
1 5 8
SG6841
2N7002
4 6
C831 1 2
R826
0.47U/50VK
200K-MF
X7R 1206
0805
1/10W
C813
R808
1000P 0805
29.4K 1%
NPO
RM0805
D812 T806
C854 P6KE180A ER2834
3 L806
12
0.01U/1KV
BEAD/6mm
D814
2
PG108R
CUT
R834 7,11 CUT
2M
1/4W
MGF
1 10
D813
1 2 5
9
ER104
L802
6
BEAD/6mm 8
L810
4.7uH
+
ZD802
C853 3
D816
R857
30D 1 2
10uF/50V D817
C850 FCQ20A06
22 MOF
I808 1N4148 1
Q802 100P
R838 1KV X7R 1
7
FQPF8N80C
8
100 MOF
R839
C849
6
2 200 MOF
1000P
R840 100V X7R
C851
0.39/2W
220P 0805 I807
R841
LTV817
X7R
270 0805
4 1
R842
C852
3 2 1K 0805
1000P 0805
C847 R843 R845
NPO
33K 1%
0.01U 0805 1K 0805 RM0805
2
X7R
C
+ 3
C848
R
4.7U/50V A I806
R846
1 AP431 1%
26.1K 1%
RM0805
VR801
10K
10-5
R868
3
D805
0.22 1W
ER1004FCT
T801
C804
D801 ER2834 1
R806
3 12
0.01U/1KV
1M
P6KE180A
1/4W
MGF
D804
2
PG108R CUT
11
R809
CUT
1 7,10
10.7K-MF
0805
1/8W D861
R862
1 2 5
9
ER104 47
+
R861
C861
20K
6 8
10uF/50V
L804
BEAD/6mm
+
D806
R814
1 2
ZD801
22 MOF
24B 1N4148
C810
Q801
1
100P
FQPF8N80C
R805 1KV X7R
100 MOF
R815
200 MOF
R813
0.39/2W
C809
220P 0805
X7R
I802
R816
LTV817
1.2K 0805
4 1
3 2
R819
1K 0805
C819 R820 56.2K 1%
0.01U 0805 1K 0805
2
X7R
C
+ 3
C820
R
4.7U/50V A I803
1 AP431 1%
3
2
D815
ER1002FCT
1
C828
1000P
+
500V X7R
C842
1000U/25V
I804
KA78R12
2
+ + R848
C845 C857
10K
1000U/16V 1000U/16V RM0805
L803
5.4UH
+
C846
1000U/16V
C811 C814
470U/35V 470U/35V
2 +24V
+ +
C829
1000P
500V X7R
P802
TO INV
24V
1
24V
2
3 24V
GND
4
5 GND
GND
6
7 GND
8 ON-OFF
BRI
9
2.0
R818
R823
6.49K 1%
RM0805
P803
ON-OFF
1
BRI
2
12V
3
+
12V
12V
4
C843
GND
5
100U/25V
GND
6
GND
7
GND
8
5.1V
9
5.1V
10
11 5.1V
P-S
12
13 MUTE
2.5