Sharp XV-C100A, Service Manual

Page: 21 / 122

XV-C100A/M/E
21
No. Adjustment Item Adjustment Conditions Adjustment Procedure
• Make sure that the setting is 12. 1. Feed the NTSC half-colour 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
Component
colour (DAC) 18
19 Counter-bias
(R1402) 1. Receive the NTSC monoscope pattern
signal.
• Turn R1402 until the best contrast
is achieved.
• 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
White balance
(DAC) 20
17 SECAM colour
(DAC) (gamma
correction on) 1. Receive the SECAM half-colour 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