ViewSonic PJ452 Service Manual - Page 41
Cautions When Removing The Power Unit BALLAST - driver
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(2) Take the Power Sheet off, and then unscrew a screw with a plastic washer. Screw POWER UNIT (CIRCUIT) Power Sheet In removing POWER BOARD(CIRCUIT) from the bottom case assembly, use flat screw driver or fine tool to unclip the holder with the arrow shown below. POWER UNIT(CIRCUIT) Clip 4. Cautions When Removing The Power Unit (BALLAST) When removing the cable (CNBAR) connected to Power Unit (BALLAST), there is danger of damaging the small PWB connecting cables. Power Unit (BALLAST) CNBAR ViewSonic Corporation Disconnect the CNBAR from connector CN2, while pressing the sub-board (to prevent the stress on the sub-board). Confidential - Do Not Copy 38 PJ452
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4. Cautions When Removing The Power Unit (BALLAST)
When removing the cable (CNBAR) connected to Power Unit (BALLAST), there is danger of damaging the
small PWB connecting cables.
Disconnect the CNBAR from connector CN2,
while pressing the sub-board
(to prevent the stress on the sub-board).
Power Unit (BALLAST)
CNBAR
(2) Take the Power Sheet off, and then unscrew a screw with a plastic washer.
Screw
POWER UNIT
(CIRCUIT)
Power Sheet
In removing POWER BOARD(CIRCUIT) from the bottom case assembly, use flat screw driver or fine tool to
unclip the holder with the arrow shown below.
Clip
POWER UNIT(CIRCUIT)
ViewSonic Corporation
Co
nfidential
- Do Not Copy
P
J452
38