Adjustment; Video Slot Us2 Adjustment - Pioneer PRO-1000HDI Service Manual

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7.3 ADJUSTMENT

7.3.1 VIDEO SLOT US2 ADJUSTMENT

• Adjust after controlling each IC.
Adjustment Input
Step
Item Signal
Y Level
1 RAMP
Adjustment
(IC7202)
R-Y Offset
2 Color-Bar
Adjustment
(IC7202)
B-Y Offset
3
Adjustment
(IC7202)
Color-Bar
TINT
4
Adjustment
(IC7202)
R-Y Level
5 Color-Bar
Adjustment
(IC7201)
B-Y Level
6 Color-Bar
Adjustment
(IC7201)
Each adjustment value is stored in IC7502.
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Measuring Adjusting
Control
Value
Point
IC7202 CN7502-pin 3 700mVp-p
(SA8E)
IC7202 CN7502-pin 7 525mVp-p
(SA8E)
IC7202 CN7502-pin 5 525mVp-p
(SA8E)
IC7501 CN7502-pin 7 525mVp-p
(SA40)
IC7501 CN7502-pin 5 525mVp-p
(SA40)
PRO-1000HDI
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Adjusting Method
Adjust the level so that the waveform becomes 700 mVp-p.
Adjust the offset so that the pedestal level becomes constant.
a: Adjust the offset so that the pedestal level becomes constant.
b: Adjust the TINT so that the height ratio of each stairstep
waveform becomes constant.
b
b
b
Adjust the level so that the waveform becomes 525 mVp-p.
Adjust the Level so that the waveform becomes 525 mVp-p.
b
b
b
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A
a
B
700mVp-p
b
a
525mVp-p
C
c
a 525mVp-p
D
b
a
525mVp-p
E
c
a
525mVp-p
F
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