Pioneer PDP-503CMX Service Manual page 102

PDP-503CMX, PDP-503MXE, PDA-5002
6.3 ADJUSTMENT
6.3.1 Video Card Adjustment
• Adjust after controlling each IC.
• Perform it from step 1 to step 6 every each input signal.
NTSC PAL SECAM
Adjustment Input
Step
Item Signal
Y Level
1 RAMP
Adjustment
(IC7130)(SA83)
R-Y Offset
2 Color-Bar
Adjustment
(IC7130)(SA88)
B-Y Offset
3
Adjustment
(IC7130)(SA88)
Color-Bar
TINT
4
Adjustment
(IC7130)(SA80)
R-Y Level
5 Color-Bar
Adjustment
(IC7103)
(SA101)
B-Y Level
6 Color-Bar
Adjustment
(IC7103)
(SA100)
Each adjustment value which adjusted, store the adjustment data in IC7104.
102
443NTSC PALM PALN
INPUT4
Measuring
Control
Point
IC7302 CN7401-pin 3 700mVp-p
IC7302 CN7401-pin 7 525mVp-p
IC7302 CN7401-pin 5 525mVp-p
IC7103 CN7401-pin 7 525mVp-p
IC7103 CN7401-pin 5 525mVp-p
NTSC PAL
INPUT3
Adjusting
Value
Adjust Level so that the peak to peak of waveform becomes
700 mVp-p.
a: Adjust Offset so that the pedestal level becomes fixed.
b: Adjust Level so that the peak to peak of waveform becomes
525 mVp-p.
a: Adjust Offset so that the pedestal level becomes fixed.
b: Adjust TINT so that the height ratio of each stair step
waveform becomes fixed.
c: Adjust Level so that the peak to peak of waveform becomes
525 mVp-p.
a: Adjust Offset so that the pedestal level becomes fixed.
b: Adjust Level so that the peak to peak of waveform becomes
525 mVp-p.
a: Adjust Offset so that the pedestal level becomes fixed.
b: Adjust TINT so that the height ratio of each stair step
waveform becomes fixed.
c: Adjust Level so that the peak to peak of waveform becomes
525 mVp-p.
Adjusting Method
a
b
b
b
a
a
b
b
b
a
a
700mVp-p
b
525mVp-p
c
525mVp-p
b
525mVp-p
c
525mVp-p