Sharp XV-Z1A Service Manual page 27

Step
Adjustment Position
23 SECAM
COLOUR
(DAC)
24 COLOUR of
component
(DAC)
25 Common DC
bias
(DAC)
(VCOMCTR)
(RC)
(GC)
(BC)
26 White balance
(DAC)
Adjustment Conditions
1. Receive the colour bar sig-
nal of SECAM.
2. Connect the oscilloscope to
pin (1) of P4303.
3. Push S2001 and set the fol-
low DAC mode.
Group : VIDEO 2
Subject : S-COLOR
1. Receive the colour bar sig-
nal of NTSC.
2. Connect the oscilloscope to
pin (1) of P4303.
3. Push S2001 and set the fol-
low DAC mode.
Group : VIDEO 5
Subject : C-COLOR
1. Receive the monoscope
signal of NTSC or PAL.
2. Push S2001 and set the fol-
low DAC mode.
Group : VIDEO 3
Subject : VCOMCTR 43
set before adjustment.
3. Subject : RC
: GC
: BC
1. Receive the monoscope
signal of NTSC or PAL.
2. Push S2001 and set the fol-
low DAC mode.
Froup : VIDEO 2
Subject : R-BIAS
B-BIAS
Adjustment Method
» Using the Operation key switch
tween red and 100% white level.
0.2 ±0.05Vp-p
100% White Red
» Using the Operation key switc
tween red and 100% white level.
0 ±0.05Vp-p
100% White Red
» Using the Operation key switch
to the sharpest contrast.
» Using the Operation key switch
to the white.
27
XV-Z1E/A
' " , adjust level be-
' " , adjust level be-
' " , adjust visually
' " , adjust visually