Sony VPH-G90E, Service Manual

Page: 104 / 546

1-94
VPH-G90E/G90U/G90M
126
Adjustments
Adjustments
Fine Adjustment for Each Input Signal
3
Press the v or V key to select the desired color temperature, then press
the ENTER key.
I N P U T - A
C O L O R T E M P : 6 5 0 0
C L A M P : A U T O
V S H I F T : W I D E
S Y N C S E L : A U T O
S Y N C R O U T E : A U T O
V I D E O L O C K : N O R M A L
SEL: SET: ENTER EXIT: MENU
PIC
CTRL
PIC
SETTING1
PIC
SETTING2
INPUT
SETTING
SET
SETTING1
S
Normally set to 6500.
Select the appropriate color temprerature 9300, 6500, 5400 or 3200
according to your application and the picture source.
Select CUSTOM to adjust the white balance for a particular input
signal and store the adjusted data to the input memory.
4
Press the MEMORY key to save the adjustment data.
Adjusting the white balance
You can readjust the color temperature or the CUSTOM data selected in
COLOR TEMP of the INPUT SETTING menu. For example, adjust the
white balance when you wish to make the color uniform with that of
another display.
Adjusting the black level (BIAS adjustment)
1
Reset the CONTRAST level to 80 and BRIGHT level to 50.
For details, see “Adjusting the Picture Quality” on page 129.
2
Press the W/B BIAS key.
The PLUGE pattern appears. Press the PATTERN key repeatedly to
display the external signal.
3
Press the ADJ R, G or B key to select the color to be adjusted.
When selecting the color, pay attention to the black part of the
picture displayed on the screen and note which color stands out
compared to that of another display.
4
Press the B or b key so that the black part in the picture on the screen
looks the same as that of the display.
If the brightness of that part does not look the same as that of the
display, adjust the other colors by pressing the ADJ R, G or B key and
the
B or b key.
5
Press the MEMORY key to save the adjustment data.
S I N P U T - A
A B L L I N K : O N
S U B C O N T R A S T : M A X
A B L L E V E L : M I N
PIC
ORBITING
TIMER
UNI
FORMITY
ABL
LINK
SEL: SET: ENTER EXIT: MENU
INT.OSC
Adjustments
127
Adjustments
Adjusting the white level (GAIN adjustment)
1
Reset the CONTRAST level to 80 and BRIGHT level to 50.
For details, see “Adjusting the Picture Quality” on page 129.
2
Press the W/B GAIN key.
When the GAIN adjustment is followed by the BIAS adjustment, the
external signal appears automatically.
When you start with the GAIN adjustment, the stair step pattern
appears. Press the PATTERN key repeatedly to display the external
signal.
3
Press the ADJ R, G or B key to select the color to be adjusted.
When selecting the color, pay attention to the white part of the picture
displayed on the screen and note which color stands out compared to
that of another display.
4
Press the
B
or
b
key so that the white part in the picture on the screen
looks the same as that of the display.
If the brightness does not look the same as that of the display, adjust
the other colors by pressing the ADJ R, G or B key and the
B
or
b
key.
5
Press the MEMORY key to save the adjustment data.
Adjusting the gray level (GAMMA adjustment)
1
Set the projector to the expert mode.
For entering into the expert mode, see “Expert mode” on page 54.
2
Reset the CONTRAST level to 80 and BRIGHT level to 50.
For details, see “Adjusting the Picture Quality” on page 129.
3
Press the W/B BIAS and GAIN keys simultaneously.
The stair step pattern appears. Press the PATTERN key repeatedly to
display the external signal.
4
Press the ADJ R, G or B key to select the color to be adjusted.
When selecting the color, pay attention to the gray part of the picture
displayed on the screen and note which color stands out compared to
that of another display.
5
Press the
B
or
b
key so that the gray part in the picture on the screen
looks the same as that of the display.
If the birghtness does not look the same as that of the display, adjust
the other colors by pressing the ADJ R, G or B key and the
B or b key.
6
Press the MEMORY key to save the adjustment data.