ViewSonic Corporation E90fB-4
52
Confidential-Do Not Copy
0.1U
F/275V
C
902
6
BDRV
C906
0.022U 100V
1K
R
933
注
:
电压测试条件
:
输入
:220V/50HZ,H-FREQ:68KHZ,V-FREQ:85HZ;
万用表直流档
ROTA
-
+
U4KB80R
BD901
2
1
3
4
C927
220P/2KV
11.7V
D938
BYV26C
13.7V
85Hz
3K3
D991
L901
73A174-7-S3G
1
4
2
3
+
C944
1000UF/16V
R906
470 1/4W
0
58V
5V
B+
-12V
CN902
1
2
D919
BYV26C
1M
1/2W
R
901
8V2
ZD901
D918
31DF4
68K
1
68K
JU
M
PER
R
930
Q903
3DG945P
+
C930
47UF/160V
6K2
R905
4
+12V
Jumper
D704
Frequency
1K
R912
SW901
0.47 1/4W
R
920
R911
JUMPER
+
C939
1000UF/16V
+
C910
47UF/16V
C933
3.3n
1
14
D940
1N4148
L902
73C258-181-10H
85Hz
68K
11
8
StandBy
C961
2n2 250V
BEAD1
FB910
10 R 1/4W
R934
1N4148
D939
IC802 PIN3
6.3V
1K 1/4W
R
936
!
R
918
3.3K 1/2W
5.12V
Q403 C
R962
47 1/4W
R907
680 1W
68K
R989
10 1/4W
IC901 PIN1
+
C937
470UF/16V
!
+80V
4A/250V
F901
D930
BYV27-200
Q403 B
R915
2K7 1/2W
R916
18 1/4W
10U
F/275V
C
901
BAV21
D917
1
+
47u/25V
C929
PH2369
Q910
RY901
4
3
6
5
1
2
D923
SB240
1
Q907
BC547B
D
942
1N
5817
IC902 56C133-5-ST
L7805CV
O
I
G
O
I
G
IC901 56A625-500-S
TEA1507P
1
2
3
4
5
6
7
8
VCC
GND
CTRL
DEMAG
SENSE
DRIVER
NC
DRAIN
R950
150K 1/4W
T901 PIN2
FB903
BEAD
D
eg. C
o
il
3N3 250V
C963
R970
220K 1/2W
L904
73C 25810110T
150K
R903 NC
C908
0.1UF
240K 1/2W
R
935
85HZ
47n 50V
C
932
+
220uF/400V or150uF/450V
C907
7K5
R902
500V
DEGAUSS
IC101 PIN39
68K
9NK70Z
Q901
t
NR901
3
10 M 1/2W
R900
+
2.2U
F/50V
C
912
1M
1/2W
R
921
68K
L903
73C 25810110T
<40KHZ
0.6KV
+
10U 16V
C967
C945
Q912
C940
1n/500V
CS TABLE:
LED1
为单色发光二极管
,POWERSAVING
时为绿闪
;LED2
为双色发光二极管
;
R
G
P10D
D
909
D922
BYV27-200
+
C945
470UF/25V
5.56V
3V
68K
+5V
BAV21
D
915
0.47 1/4W
R
923
R908
15 1/2W
IC101 PIN34
330K 1/2W
R937
+
C936
100UF/100V
0.01 250V
C941
5.1V
ZD904
R
973
200K 1/2W
R909
100 1/4W
TL431ACZ-AP
IC904
D937
1N4148
CONN
CN903
1
2
3
68K
R922
JUMPER
0.1UF
C911
AK
G
Q935
BT169B
R
G
P10D
D
911
5
40KHZ~58KHZ
C
N
901
1
2
3
56 2W
R
929
R953
5K6 1/2W
Q402 G
+
+
+
+
+
+
+
+
T901
80C995-1-N1
5
10
11
9
13
12
14
15
16
8
4
2
6
3
73C253-513-T
L906
A733
Q920
Q902
2SC1213C
7
330R
R931
12.1V
C
919
10n/2KV
4700P 500V
C914
10K 1/4W
R982
>58KHZ
R980
220 1/4W
R977
200K 1/2W
Q911 G
10
52.4V
11.9V
L905
73C 25818110H
68K
Q905
3CG733P
10K 1/4W
R
983
t
PR901
15R
R
938
R939
22K 1/4W
C928
47P/1KV
27K
R932
68K
220p/1KV
C
920
R910
91K
220p 50V
C934
13
+
C931
22U 250V
CS1
ER204
D916
P4
NC
3K3
BYV26C
D
910
IC101 PIN20
12
CPU PIN 53
0.47 1/4W
R
924
+12V
0.47 1/4W
R
925
R
917
100K 1/2W
3N3 250V
C962
R951
1K
CS2
5.41V
+12V
FB901
BEAD
R
913
120K 1/2W
+
47UF 250V
C481
C945
Q913
2
82K/2W
R
927
Q911
2SJ584
G
S
D
IC903
TCET 1103
1
2
4
3
10 1/4W
R965
C
925
10n/250V
0
1.14KV
+
1UF 50V
C935 NP
CPU PIN 52
D936
1N4148
+
C918
2700UF 16V
9
D913
IN5817
BAV20
D912
IC601 PIN5
R914
47R
68K
390R
R
928
BEAD
FB902
C947
100P
0
IC801 PIN21
Summary of Contents for PerfectFlat E90fB-4
Page 46: ...ViewSonic Corporation E90fB 4 43 Confidential Do Not Copy 9 BLOCK DIAGRAM...
Page 48: ...ViewSonic Corporation E90fB 4 45 Confidential Do Not Copy SAA4849...
Page 52: ...ViewSonic Corporation E90fB 4 49 Confidential Do Not Copy...
Page 58: ...ViewSonic Corporation E90fB 4 55 Confidential Do Not Copy 11 PCB LAYOUT 11 1 MAIN PCB LAYOUT...
Page 59: ...ViewSonic Corporation E90fB 4 56 Confidential Do Not Copy 11 2 CRT BOARD LAYOUT...
