Sharp XV-C100U, Service Manual

Page: 23 / 73

XV-C100U
23
No. Adjustment Item Adjustment Conditions Adjustment Procedure
• Make sure that the setting is 12. Component
color (DAC) 18
19
Counter-bias
(R1402)
• Turn R1402 until the best contrast
is achieved.
20 White balance
(DAC) • Using the
'
and
"
keys, visually
adjust the white balance to best
position.
1. Receive the NTSC monoscope pattern
signal.
2. Press S2001 to call up the ADJ IN
mode and select the following subject.
Group: VIDEO 2
Subject: R-BIAS, B-BIAS
1. Receive the NTSC monoscope pattern
signal.
1. Feed the NTSC half-color bar signal to
the component terminal.
2. Press S2001 to call up the ADJ IN
mode and select the following subject.
Group: VIDEO 4
Subject: C-COLOR
17 SECAM color
(DAC) (gamma
correction on) 1. Receive the SECAM half-color bar
signal.
2. Connect the dual-beam oscilloscope
between pin (3) of P1401 and GND.
3. Press S2001 to call up the ADJ IN
mode and select the following subject.
Group: VIDEO 2
Subject: S-COLOR
• Using the
'
and
"
keys, adjust the
difference between the 100% white
level and the red level to 0.10±0.05
Vp-p.
100% white
Primary red