Sony VPH-G90E, Service Manual

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1-82
VPH-G90E/G90U/G90M
102
Adjustments
Adjustments
Adjusting the Registration
B
Vertical line adjustment
If the picture’s borders are as shown by the dotted line in the illustrations
below, adjust them with the corresponding arrow key so that they are
parallel (bold lines illustrated on the left).
1
Press the KEY key.
The HATCH pattern appears.
2
Adjust the distortion as illustrated below with the B and b keys.
In position No. 1 of green adjustment, the green, red and blue lines
move together by pressing the
B or b key.
B :The lines spread apart at the bottom and come
together at the top while the center remains
unmoved.
b :The lines spread apart at the top and come
together at the bottom while the center remains
unmoved.
3
Press the PIN key.
4
Adjust the distortion as illustrated below with the B and b keys.
In position No. 1 of green adjustment, the green, red and blue lines
move together by pressing the
B or b key.
B
:The ends of the left and right side lines come
together while the center remains unmoved.
b :The ends of the left and right lines spread apart
while the center remains unmoved.
5
Repeat steps 1 to 4 until the vertical lines become parallel to the screen
edges.
Adjustments
103
Adjustments
5
Green KEY (keystone) and PIN (pincushion) adjustments on the peripheral area of
the screen
Separately adjust the distortion at the top, bottom, right end and left end of
the screen which may still remain even after the KEY and PIN adjustments
for the whole screen.
A
Horizontal line adjustment at the top
1
Press the KEY key and press the PO key once.
The projector enters the upper keystone adjustment mode (POSITION
No. 2).
When you press the PO key, the adjustment position changes
in the numerical order
2 to 5 as illustrated on the left. The selected
position number appears at the upper right corner of the screen. When
you press the POSITION – key, the position number is selected in the
reverse order.
2
Adjust the distortion of the horizontal line at the top with the v and V
keys.
Only the green line moves.
V : The horizontal line rotates counter-clockwise,
rotating around the center.
v :The horizontal line rotates clockwise, rotating
around the center.
3
Press the PIN key and press the PO key once.
The projector enters the upper pincushion adjustment mode
(POSITION No. 2).
When you press the PO key, the adjustment position changes
in the numerical order
2 to 5 as illustrated on the left. The selected
position number appears at the upper right corner of the screen. When
you press the POSITION – key, the position number is selected in the
reverse order.
2
3
5 4
(continued)