Sony VPH-G90U Service Manual page 114

Link Functions List of the Projection Distance by Angle of Optical Axis
Adjusting the ABL LINK
1
Set the projector to the service mode.
For details, see "Service mode" on page 53.
2
Set the CONTRAST levels of all projectors to the same level.
3
Adjust the brightness of each projector to make its black level uniform.
4
Input an external signal to display the 1/16 window pattern.
5
Display the ABL LINK menu, select SUB CONTRAST with the v or
V key, then press the ENTER key.
S
A B L L I N K : O N
PIC
ORBITING 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
INT.OSC
SETTING
TIMER
ABL
LINK
SEL:
6
Press the v or V key to adjust the projector so that the brightness looks
the same as that of the darkest projector, then press the ENTER key.
S U B C O N T R A S T : M A X
7
Repeat steps 4 to 6 on each projector so that the brightness of all
projectors looks the same.
8
Input an external signal to display the all white pattern.
9
Select ABL LEVEL in the ABL LINK menu, then press the ENTER
key.
10
Press the v or V key to adjust the projector so that the brightness looks
the same as that of the darkest projector, then press the ENTER key.
A B L L E V E L A D J : M I X
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Others
I N P U T - A
SET: ENTER EXIT: MENU
11
Using the Linked Picture Orbiting Function Repeat steps 8 to 10 on each projector so that the brightness of all
projectors looks the same.
12 What is linked picture orbiting function?
Set ABL LINK in the ABL LINK menu to ON, then press the ENTER
The picture orbiting function prevents CRT burn by shifting the picture
key.
projected on the screen automatically.
If the ABL functions on any one projector, the brightness of all
If you connect the LINK jacks of each projector when multiple projectors
projectors becomes uniform.
are used, the linked picture orbiting function can shift the pictures of all
the projectors regularly.
There are two picture orbiting functions: PIC ORBITING for shifting the
picture on the screen and SCAN LINE SHIFT for shifting the scanning
lines vertically.
Activating the picture orbiting function
1
Set the projector to the service mode.
For details, see "Service mode" on page 53.
2
Display the PIC ORBITING menu.
S
P I C O R B I T I N G : O F F
PIC
ORBITING
INT. OSC
S C A N L I N E S H I F T : O F F
TIMER
UNI
FORMITY
SEL:
3
Select PIC ORBITING or SCAN LINE SHIFT as necessary, by
pressing the v and V keys, then press the ENTER key.
4
Press the v or V key to select ON, then press the ENTER key.
The picture orbiting function is now activated.
I N P U T - A
SET: ENTER EXIT: MENU
147
Others