Sony VPH-G70Q Manuel D'installation page 68

Adjusting the Focus
3 Adjusting the green magnetic focus and AQP/DQP
68
(EN) Adjustments
After adjusting flapping of the lens, adjust the magnetic focus, AQP (Axis
Quadrupole) and DQP (Diagonal Quadrupole).
What is the AQP/DQP adjustment?
AQP adjustment
b
Correct the vertical or horizontal
distortion of the spot.
1
Cover the green lens with the supplied cap for magnetic focus
adjustment.
2
Press the MG FOCUS key.
The DOT pattern (9 × 9) appears on the screen, and a square for
adjusting focus overlaps with the DOT pattern on the center of the
screen.
F O C U S A D J P O S I T I O N
- G - M G - A L L N o . 1
A L L : 1 2 8
2 P H : 1 2 8
2 P V : 1 2 8
SEL: ADJ:
4 P A : 1 2 8
NEXT:
4 P D : 1 2 8
3
Adjust the focus at the center of the screen.
1 Press the B or b key to set ALL to +40 so that flare appears on the
screen.
2 Press the V or v key to select 2PH, then press the B or b key so that
the core of a spot is located at the horizontal center of the flare.
3 Press the V or v key to select 2PV, then press the B or b key so that
the core of a spot is located at the vertical center of the flare.
4 Repeat steps 2 and 3 so that the core of a spot is located at the
center of the flare.
5 Press the V or v key to select ALL again, then set the value to –80
with the B or b key so that the spot is focused.
6 Press the V or v key to select 4PA, then correct the vertical and
horizontal distortion of the spot with the B or b key.
7 Press the V or v key to select 4PD, then correct the diagonal
distortion of the spot with the B or b key.
8 Repeat steps 6 and 7 so that the spot becomes a correct circle.
DQP adjustment
Correct the diagonal distortion of
the spot.
+ –
b