Read Sharp XV-Z1E Service Manual online
XV-Z1E/A
25
Step
Adjustment Position
Adjustment Conditions
Adjustment Method
17
Gamma
(DAC)
(DAC)
1. Receive the 10 step gray
scale signal of NTSC.
2. Connect the oscilloscope to
pin (2) of P4303.
3. Push S2001 and set the fol-
low DAC mode.
Group : VIDEO 4
Subject : RGB GAM 1
Subject : RGB GAM 1
RGB CTR 1
4. Connect the oscilloscope to
pin (1) of P4303.
Group : VIDEO 4
Subject : R GAM 1
Subject : R GAM 1
R CTR 1
5. Connect the oscilloscope to
pin (3) of P4303.
Group : VIDEO 4
Subject : B GAM 1
Subject : B GAM 1
B CTR 1
»
Using the Operation key switch
' "
, adjust level be-
tween 2nd gradation and GND for
4.4 ±0.1Vp-p
4.4 ±0.1Vp-p
adjust level between black level and GND for
3.0 ±0.1Vp-p
3.0 ±0.1Vp-p
18
SID signal level
1. Receive the 10 step gray
scale signal of NTSC.
2. Connect the oscilloscope to
pin (6) of P4303.
3. Push S2001 and set the fol-
low DAC mode.
Group : VIDEO 3
Subject : SID CTR
Subject : SID CTR
»
Using the Operation key switch
' "
, adjust level be-
tween signal center and SID signal level.
4.0 ±0.1Vp-p
4.0V
4.0V
2nd gradation
Black level
GND
3.0V
4.4V
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