Pioneer PDP 433CMX, Service Manual

Page: 109 / 177

109
PDP-433CMX
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 of video signal.
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 of video signal.
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 294 294 294
y 303 303 304
Y 6.9 6.9 2.8
80% window-step signal
(-3dB)
x 293 293 297
y 301 301 312
Y 151 151 65
Flesh
Color
Window chroma signal
x 423 423
−
y 363 363
−