Sony BVP-900 Series System Manual page 223

4-5 Iris Adjustments
• Pattern to suppress the sensitivity in the upper
area and the left and right edges of the picture.
• Pattern to suppress the sensitivity in the lower
area of the picture.
Level
Turn the leftmost control to determine the
convergence target of the automatic iris
adjustment. The higher you set the value, the
higher the level.
To adjust on the Paint Menu
Proceed as follows:
1
Press and light the PAINT button.
The Paint Menu (1/3) appears on the display.
2
Press 4 twice or $ once to flip the display to Paint
menu 3/3.
3
Press [Auto Iris] to set it to inverse video.
The lower half of the display becomes the Auto
Iris adjustment display.
To turn on/off the auto iris on the adjustment
display
Press [Auto Iris], which operates in synchronization
with the MATRIX OFF button.
Override function
By turning the IRIS control in Auto Iris mode, you
can adjust the reference value for automatic
adjustment in a range of ±2 iris settings.
This value compensation returns to 0 once Auto
Iris is released.
4-44
Chapter 4 Adjustments
APL (Average Picture Level) Ratio
Turn the second control from the left to determine
if the feedback is to be applied according to the
peak luminance of the object or the average
luminance. The higher you set the value, the more
the feedback depends on the average luminance.
Set value –99
Peak-to-Average 1:0
Iris Gain
Turn the second control from the right to set the
loop gain for the auto iris adjustment. Adjust it so
that no hunting is generated.
Paint Menu (1/3)
MODE
Clear
V Mod Skin
Detail
Saw Detail
Black White Flare
MULTI
CARD
CONFIG
MAINTENANCE
FILE
1
PAINT
Paint menu 3/3 (NTSC)
Clear
Mono
Auto Iris
Color
Color
Matrix EDTV
Correct
Paint menu 3/3 (PAL) and Auto Iris adjustment display
Clear
Mono
Auto Iris
Color
Color
Matrix EDTV
Correct
Spread
Auto Iris
Normal Skin
Mode Mode
Pattern Phase
0 +99
1:1 0:1
Home
2
SAT/
Contrast
1
3
Gamma
/Knee
Example: MSU-700A
Home
ECS
/S-EVS
3
3
Comb
Home
ECS
/S-EVS
3
3
Comb
Auto Iris
Iris Auto A. Iris
Hue Gate
Width