ViewSonic E70FSB-2 Service Manual - Page 95
Block Diagram Smps
 |
UPC - 766907870558
View all ViewSonic E70FSB-2 manuals
Add to My Manuals
Save this manual to your list of manuals |
Page 95 highlights
BLOCK DIAGRAM (SMPS) Q913 Degausses C.K.T Ry901 Rectified & VIN Smoothed T901 Power Transformer Start C.K.T Q904,Q906, Q911,Q917 Rectified & Smoothed From Ic101 Power On/Of Switch LIN FILTER VC 8 Control 2 & PWM 6 F.B O/P Ic901 3 IS Q901 Power Mosfet R929 AC 90V~264V H-SYN C.K.T From H.O.T H-SYN Control Output 14V Q909 Rectified Q918 & Q907 Smoothed 6.3V Q908 Q921 -12V 78V 12V 6.3V L906 VARI Transformer Q911 Power Mosfet B+ PWM Ic401 Q912,Q920 38 12 Ic101 26 Output Rectified & (60V~170V) Variable B+ Smoothed 92 Confidential - Do Not Copy E70f-5_E70fB-5_E70fSB-5 ViewSonic Corporation
-
1 -
2
-
3
-
4
-
5
-
6
-
7
-
8
-
9
-
10
-
11
-
12
-
13
-
14
-
15
-
16
-
17
-
18
-
19
-
20
-
21
-
22
-
23
-
24
-
25
-
26
-
27
-
28
-
29
-
30
-
31
-
32
-
33
-
34
-
35
-
36
-
37
-
38
-
39
-
40
-
41
-
42
-
43
-
44
-
45
-
46
-
47
-
48
-
49
-
50
-
51
-
52
-
53
-
54
-
55
-
56
-
57
-
58
-
59
-
60
-
61
-
62
-
63
-
64
-
65
-
66
-
67
-
68
-
69
-
70
-
71
-
72
-
73
-
74
-
75
-
76
-
77
-
78
-
79
-
80
-
81
-
82
-
83
-
84
-
85
-
86
-
87
-
88
-
89
-
90 -
91 -
92 -
93 -
94 -
95 -
96 -
97 -
98 -
99 -
100 -
101
-
102
-
103
 |
 |
BLOCK DIAGRAM (SMPS)
Degausses
C.K.T
Rectified
Smoothed
&
VIN
T901
Power
Transformer
Output
Rectified
&
Smoothed
14V
Q909
Q918
Q907
Q908
Q921
6.3V
Ry901
Start
C.K.T
Q904,Q906,
Q911,Q917
Rectified
&
Smoothed
VC
8
3
6
2
Control
&
PWM
Ic901
F.B
O/P
Q901
Power
Mosfet
L906
VARI
Transformer
Power
On/Of
Switch
R929
IS
LIN
FILTER
Q911
Power
Mosfet
B+
PWM
Ic401
Q912,Q920
From
H.O.T
H-SYN
Control
H-SYN
C.K.T
AC
90V~264V
12
38
26
Ic101
Output
Rectified
&
Smoothed
(60V~170V)
Variable
B+
12V
78V
-12V
Q913
From Ic101
6.3V
ViewSonic Corporation
Confidential – Do Not Copy
E70f-5_E70fB-5_E70fSB-5
92