Pioneer pdp-433cmx Service Manual page 109

5
Input Signal Step
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.
7
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.
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.
8
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.
RGB (PC)
signal
Adjust the black level of the Red and Blue
signals referring to that of the Green signal
Black level of
the Green signal
Black level of
the Red or Blue signal
Color-Balance Adjustment
Adjusting Point
Input Signal
REFERENCE1 mode
in Factory mode
Flesh color
COLOR : "3" key
TINT
5
6
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.
: "4" key
Reference: Adjustment values when using the Minolta color-difference meter
20% window-step signal
White
Balance
80% window-step signal
Flesh
Window chroma signal
Color
PDP-433CMX
6
7
Adjusting Method
Adjust the signal amplitude of the Red and Blue
signals referring to that of the Green signal
Green signal
waveform
Red or Blue
signal
Signal amplitude
waveform
of the Green signal
Adjusting Method
NTSC
x 294
y 303
(-3dB)
Y 6.9
x 293
y 301
(-3dB)
Y 151
x 423
y 363
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8
Green signal
waveform
Red or Blue
signal
waveform
HD PC
294 294
303 304
6.9 2.8
293 297
301 312
151 65
−
423
−
363
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B
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D
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