Sony VPH-G90E Installation Manual page 89

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 POSITION + 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
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?
AHP adjustment
b
Correct the triangular-form distortion.
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 ?
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.
DHP adjustment
Y E S
N O
) if the
(GB)
b
(continued)
89
Adjustments (GB)