Sony VPH-G90E, Руководство по обслуживанию

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VPH-G90E/G90U/G90M
20
Installation
Installation
Modifying Parts
Changing the Polarity
The polarity of the projector is adjusted at the factory to use the projector
for front projection on the floor.
When the projector is installed on the ceiling or used in rear projection, it
is necessary to change the settings of the polarity switches.
How to change the polarity
1
Turn off the power of the projector.
2
Open the control panel cover, loosen the screw, and open the cover of
the polarity switches.
3
Change the position of the polarity switches (V and H switches), if
necessary.
4
Close the cover of the polarity switches, tighten the screw and close
the control cover.
Note
If the cover of the polarity switches does not shut firmly, the power of the
projector is not turned on in order to protect the CRTs.
Loosen
Open
Push the control panel cover and
slide it to open.
V switch
H switch
L
R
L
R
Upper
Right
Left
Lower
Installation
21
Installation
Installation methods and settings of the polarity switches
Polarity and on-screen display
When the projector is installed on the ceiling or used in rear projection
without changing the polarity, one of the following on-screen displays
appears. In this case, you have to change the polarity corresponding to the
installation methods.
A
The letters are backward.
Change the position
of the H switch.
Fo r op ti mu m
pe rf or ma nc e,
wh it e sc re en w il l
re ma in f or
20 mi n
Fo r im me di at e us e
pu sh [ ME NU ] ke y.
B
The letters are upside
down.
Change the position of the V
switch.
Fo r op ti mu m
pe rf or ma nc e,
wh it e sc re en w il l
re ma in f or
20 mi n
Fo r im me di at e us e
pu sh [ ME NU ] ke y.
C
The letters are upside down and backward.
Change the positions of the H and V switches.
F o r o p t i m u m
p e r f o r m a n c e ,
w h i t e s c r e e n w i l l
r e m a i n f o r
2 0 m i n
F o r i m m e d i a t e u s e
p u s h [ M E N U ] k e y .
Installation
methods Position of the
V switch Position of the
H switch On-screen display
by default (See
below.)
Front projection,
floor Upper Left Correct
Front projection,
ceiling Lower Right
C
Rear projection,
floor Upper Right
A
Rear projection,
ceiling Lower Left
B
Others Display letters on the screen so that you can determine
which changes to make.
For on-screen display and necessary changes, see below.