SAST AED-5001, Service Manual

Page: 107 / 169

PDP-503CMX
105
5 6 7 8
5 6
7
8
C
D
F
A
B
E
Input Signal Step Adjusting Method
7
AD B LOW adjustment
Measure the black level (0IRE) of the Blue signal at K4604, and adjust the level of AD B LOW so that its black level
(0IRE) become the same as that of the Green signal measured in step 9.
Tolerance:
±
0.05V
OFFSET mode: Select RGB 1 mode with the top and bottom keys.
AD B LOW : "11" key
Adjust with the right and left keys.
8
AD B HIGH adjustment
Measure the signal amplitude of the Blue signal at K4604, and adjust the level of AD B HIGH so that its signal
amplitude become the same as that of the Green signal measured in step 9.
Tolerance:
±
0.05V
OFFSET mode: Select RGB 1 mode with the top and bottom keys.
AD R LOW : "8" key
Adjust with the right and left keys.
Black level of
the Green signal
Green signal
waveform
Adjust the black level of the Red and Blue
signals referring to that of the Green signal
Black level of
the Red or Blue signal
Signal amplitude
of the Green signal
Green signal
waveform
Red or Blue
signal
waveform Red or Blue
signal
waveform
Adjust the signal amplitude of the Red and Blue
signals referring to that of the Green signal
RGB (PC)
signal
Input Signal
Adjusting Point Adjusting Method
Flesh color
REFERENCE1 mode
in Factory mode
COLOR : "3" key
TINT
: "4" key
Reference: Adjustment values when using the Minolta color-difference meter
Color-Balance Adjustment
After adjusting the white balance, check the flesh color of figures in LD still pictures. If the
color is not natural, adjust it with the keys on the remote control unit.
Color-Balance Adjustment
NTSC HD PC
White
Balance
20% window-step signal
(-3dB)
x 298 299 302
y 307 315 308
Y 6.6 5.7 2.9
80% window-step signal
(-3dB)
x 293 292 297
y 309 312 319
Y 135 148 66.2
Flesh
Color
Window chroma signal
x 430 427
−
y 365 362
−