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ViewSonic VG181 - Page 34

ViewSonic VG181
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Service
Manual
ViewSonic
VG181
July
2000
-
Version
1.0
THEORY
OF
CIRCUIT
OPERATION
Power
and
Ground
Pin
Description
6,38,67
Power
Digital
Core
VCC,
must
be
set
to
3.3V.
5,39,68
Ground
|
Digital
Core
GND.
18,29,43,57,78
Power
Output
VCC,
must
be
set
to
3.3V.
19,28,45,58,76
|
Ground
|
Output
GND.
82,84,88,95
Power
Analog
VCC,
must
be
set
to
3.3V.
79,83,87,89,92
|
Ground
|
Analog
GND.
97
98
Power
Ground
PLL
Analog
VCC,
must
be
set
to
3.3V.
PLL
Analog
GND.
Page
32
Confidential
-
Do
Not
Copy

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