Sony VPH-G90E, Installation Manual, Page: 89 / 480

Adjustments
89
(GB)
Adjustments
b
b
8
Perform the magnetic focus, AQP and DQP for every part of the screen
(positions No.3 to No.9) in numeric order.
1
Press the PO key to select the part to be adjusted.
2
Press the
v
or
V
key to select the adjustment item.
3
Press the
B
or
b
key to adjust.
Repeat steps
2
and
3
for each adjustment item.
Proceed to adjust the red magnetic focus
(page 90
(GB)
)
if the
green adjustments are completed.
If the green adjustments are not complete, repeat from the
green lens focus again.
AHP/DHP adjustment (in expert mode only)
To adjust the spot at the corner of the screen more precisely, the unit is
provided with the AHP (Axis Hexapole)/DHP (Diagonal Hexapole)
adjustment in expert mode only. The AHP/DHP adjustment corrects the
astigmatic distortion which cannot be corrected with the AQP/DQP
adjustment.
Perform the AHP/DHP adjustment before adjusting the magnetic focus and
AQP/DQP adjustment at the corners of the screen.
What is the AHP/DHP adjustment?
1
Press the NORMAL key on the remote commander to turn off the test
pattern.
2
Press the keys in the following order:
ENTER
n
ENTER
n B n b n
ENTER
Press the keys one after another within 2 seconds.
The following display appears.
D o y o u w i s h t o e n t e r
i n t o t h e E X P E R T M O D E ?
Y E S
N O
SEL: SET: ENTER EXIT: MENU
3
Press the
v
or
V
key to select YES, then press the ENTER key.
The unit enters the expert mode, and “E” appears at the top-left of the
screen when the menu is displayed.
4
Press the FUNCTION key once.
“SPOT SHAPE” is displayed on the screen and the spots become large
for easier adjustment.
(continued)
DHP adjustment AHP adjustment
Correct the triangular-form distortion.