ViewSonic E90fB-4 Service Manual page 55

F901 73A174-7-S3G
4A/250V L901
4
3
1
CN902 4700P 500V
RY901
C914
1
4
3
2 6
5
1
PR901 2
R900
10 M 1/2W
D939
1N4148
Q913
C945
R982
C967 10K 1/4W
+
10U 16V
注:电压测试条件:输入:220V/50HZ,H-FREQ:68KHZ,V-FREQ:85HZ;万用表直流档
CS TABLE:
Frequency
CS1 CS2
<40KHZ 0
0
40KHZ~58KHZ 1
0
>58KHZ 1 1
LED1为单色发光二极管,POWERSAVING时为绿闪;LED2为双色发光二极管;
ViewSonic Corporation
52
NR901
! FB903
FB901
BEAD
BEAD
C962
3 3N3 250V
C907
4 1
2 + +
220uF/400V or150uF/450V
C963 BD901
3N3 250V
U4KB80R
FB902
BEAD
9NK70Z
R934 Q901
10 R 1/4W
IC901 56A625-500-S
TEA1507P
0.1UF R937
8 1
DRAIN VCC
330K 1/2W
C911
7 2
NC GND
6 3
DRIVER CTRL
5 4
SENSE DEMAG
R931 R932 SW901
330R 27K
C934
C935 NP
220p 50V
1UF 50V
1 2 4
CPU PIN 52 CPU PIN 53 3 IC101 PIN34
5.41V 5.56V
3V
85HZ 85Hz
68K
Confidential-Do Not Copy
!
T901
D919
80C995-1-N1
BYV26C
6
C927
9
+
+ 47UF/160V
220P/2KV
3
+
11
10
+
D918
5
+
31DF4
13
D923
12
+
2
+ SB240
+ C939
1000UF/16V
14
4 +
D922
C944
+
BYV27-200
1000UF/16V
15
D912
8
+
BAV20
16
D930
C961
BYV27-200 C945
470UF/25V
2n2 250V
+ C929
47u/25V
R912
1K
NC
3K3
ZD904
5.1V
IC903
TCET 1103
D938
BYV26C
R914
47R
R953 R951
ZD901
5K6 1/2W 1K
8V2
D936
1N4148
C928
47P/1KV
D937
1N4148
D940
1N4148
Q907
BC547B
5 6 8
IC101 PIN20 Q402 G IC101 PIN39 7 IC601 PIN5 Q403 B
85Hz
11.9V 12.1V 13.7V
5.12V
52.4V
68K
68K 68K 68K
E90fB-4
L905
73C 25818110H R939 D917
22K 1/4W
BAV21
C930
R950 C931 +
150K 1/4W
22U 250V
L902 D704
73C258-181-10H Jumper
C936
+ R970
100UF/100V
220K 1/2W
FB910
BEAD1
+ C910
47UF/16V
L903
73C 25810110T
+ C937
470UF/16V
L904
73C 25810110T
R903 NC
150K
C906
0.022U 100V
IC904
TL431ACZ-AP
R915
2K7 1/2W
R916
C940
18 1/4W
1n/500V
IC902 56C133-5-ST
L7805CV
I O
I O
+ C918
Q935 2700UF 16V
G
BT169B
R922
JUMPER
R907
C933
680 1W
3.3n
R909
100 1/4W
Q902
2SC1213C
R902
+
7K5
R905
R906
6K2
470 1/4W
R910
91K
9
Q403 C 10 T901 PIN2 11 IC801 PIN21 12 IC802 PIN3 13 Q911 G
68K
0.6KV 5V 58V
1.14KV
68K 68K 68K
68K
Q911
L906
2SJ584
47UF 250V
73C253-513-T
C481
S D B+
R977
D916
+
G 200K 1/2W
ER204
R962
47 1/4W
+12V
C945 D991
Q912 3K3 PH2369
Q910
R980 BDRV
C941
0.01 250V
Q920 220 1/4W
A733
6.3V
P4
+12V
-12V
R989
10 1/4W
D913
IN5817
+5V
R908
15 1/2W
Q903
3DG945P
R911
C908
JUMPER
Q905
0.1UF R965
3CG733P
10 1/4W
100P
C947
CN903
CONN
14 IC901 PIN1
11.7V 500V
68K