ViewSonic VG750 Service Manual - Page 21
Inverter, Board
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UPC - 766907539325
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4-3 Inverter Board 4-3.1 The Location of Connectors CN3 CN2 CN1 4-3.2 CN1 Connector Pin # 1 2 3 4 5 6 Description +12V +12V On/Off Brightness GND GND 4-3.3 CN2 Connector Pin # 1 2 3 4 Description ACV (-1kV) ACV (-1kV) N.C. GND 4-3.4 CN3 Connector Pin # 2 3 4 Description ACV (-1kV) ACV (1kV) N.C. GND Function +12V Power Supply +12V Power Supply On/Off Bright Coutiul Ground Ground Function Lamp Output Lamp Output No Connection Ground Function Lamp Output Lamp Output No Connection Ground ViewSonic Corporation CONFIDENTIAL - DO NOT COPY
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4-3
Inverter
Board
4-3.1
The
Location
of
Connectors
CN3
CN2
CN1
4-3.2
CN1
Connector
Pin
#
1
Description
Function
+12V
+12V
Power
Supply
2
+12V
+12V
Power
Supply
3
On/Off
On/Off
4
Brightness
Bright
Coutiul
5
GND
Ground
6
GND
Ground
4-3.3
CN2
Connector
Pin
#
1
2
3
4
Description
ACV
(-1kV)
ACV
(-1kV)
N.C.
GND
4-3.4
CN3
Connector
Pin
#
2
3
4
Description
ACV
(-1kV)
ACV
(1kV)
N.C.
GND
Function
Lamp
Output
Lamp
Output
No
Connection
Ground
Function
Lamp
Output
Lamp
Output
No
Connection
Ground
ViewSonic
Corporation
CONFIDENTIAL
-
DO
NOT
COPY