Sony VPH-G90E Installation Manual page 91

3 Adjusting the blue magnetic focus, AQP/DQP and AHP/DHP
4 Adjusting the uniformity of all-white mode screen
Proceed to adjust the blue magnetic focus if every part of the
screen for red signal is completely in focus.
Note
When the red magnetic focus adjustment mode is canceled, the red signal
is slightly defocused. This is because the offset function activates so that
the optimum picture is projected. (when NORMAL DEFOCUS MODE is
ON in SERVICE SETTING 1 menu)
Press the CUT OFF G and R keys to display the blue signal only. Then
adjust the magnetic focus, AQP/DQP and AHP/DHP. To adjust them,
perform the same procedure as for the green signal.
For details, see "1 Adjusting the green magnetic focus, AQP/DQP and AHP/
DHP"on pages 87 to 90
(GB)
If every part of the screen for blue signal is completedy in
focus, proceed to adjust the uniformity of all white mode
screen.
Note
When the blue magnetic focus adjustment mode is canceled, the blue
signal is slightly defocused. This is because the offset function activates so
that the optimum picture is projected. (when NORMAL DEFOCUS
MODE is ON in SERVICE SETTING 1 menu)
After completing the green, red and blue focus adjustments, check the
uniformity of all-white mode screen.
1
Press the MG FOCUS, B ADJ and MG FOCUS keys to enter the
defocused mode.
DEFOCUS is displayed on the screen and the blue signal is slightly
defocused.
2
Press the PATTERN key until the all-white screen appears.
3
If the all-white screen does not seem uniform, adjust the blue magnetic
focus for every part of the screen so that the screen becomes uniform
white.
Proceed to save the adjusted magnetic focus data as standard
data, if the uniformity of the all-white mode screen is adjusted
completely.
.
(GB)
91
Adjustments (GB)