Sharp XV-C100U, Service Manual

Page: 21 / 73

XV-C100U
21
No. Adjustment Item Adjustment Conditions Adjustment Procedure
• Using the
'
and
"
keys, adjust the
(B-Y) signal waveform to slope down
straight.
1. Receive the NTSC half-color bar signal.
2. Press S2001 to call up the ADJ IN
mode and select the following subject.
Group: VIDEO 2
Subject: TINT
3. Connect the dual-beam oscilloscope
between pin (5) of P803 and GND.
Tint (DAC) 10
11
Component tint
(DAC)
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-TINT
3. Connect the dual-beam oscilloscope
between pin (3) of P803 and GND.
• Using the
'
and
"
keys, adjust the
(B-Y) signal waveform to slope down
straight.
• Using the
'
and
"
keys, adjust the
difference between the white levels
to 3.0±0.05 Vp-p.
1. Receive the NTSC 10-step pattern
signal.
2. Connect the dual-beam oscilloscope
between pin (2) of P1401 and GND.
3. Press S2001 to call up the ADJ IN
mode and select the following subject.
Group: VIDEO 2
Subject: SUB-BIAS
Sub-bias (DAC)
(gamma
correction on) 12
• Using the
'
and
"
keys, adjust the
difference between the first-step
level and the tenth-step level to
2.0±0.05 Vp-p.
13 R-drive
B-drive
1. Receive the NTSC 10-step pattern
signal.
2. Connect the dual-beam oscilloscope
between pin (3)(R) (or pin (1)(B)) of
P1401 and GND.
3. Press S2001 to call up the ADJ IN
mode and select the following subject.
Group: VIDEO 2
Subject: R-DRIVE, B-DRIVE