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ViewSonic G90FB-2 Service Manual Page 45
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M24C08-BN6
IC102
8
5
6
1
2
3
7
4
VCC
ISDA
ISCL
A0
A1
A2
WP
A4
IC601
TDA8172
2
6
3
7
1
4
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Vs
Vb
FB
+I/P
-I/P
-12V
+O/P
V
i
e
w
So
n
i
c
C
orp
o
r
a
t
ion
Con
f
id
e
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al -
Do Not
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G
9
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Service Manual
1
TABLE OF CONTENTS
2
Revision History
3
WARNING!
4
2. Specification
6
Operating instructions
8
Adjusting the Screen Image
9
OSD Lock Settings
10
4. Circuit Description
13
5. Adjusting Procedure
16
Purity Magnets
19
Deflection Yoke
19
4-pole Convergence Magnets
19
6-pole Convergence Magnets
19
AND IC101 PIN9,10,11
23
CHECK L401, Q426, Q420, Q427
23
(A) Variable output: 60V
24
Serial No. Prefix: PY9
25
Serial No. Prefix: PYA
26
Serial No. Prefix: PYC
27
BOM LIST (G90fB-4M/E/P)
28
Model G90fB-4
40
Date Rev:
40
9. Block Diagram
42
IC101 SAA4849
43
SAA4849
44
M24C08-BN6
45
LM1246DKA
46
56C551-521
47
LM2480NA
48
56C539-6
48
10.Schematic Diagrams
49
10-2. POWER
50
10-3. OUTPUT
51
19' SDI TUBE
52
11. PCB Layout Diagrams
53
11-2. CRPC Board Layout
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* Reader’s Response*
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