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Sharp XV-C1OU Service Manual page 21

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XV-Cl
ou
No
Adjustment
Item
10.
Tint (DAC)
.
Adjustment
Conditions
Adjustment
Procedure
1. Receive the NTSC half-color bar signal.
l
Using the A and v keys, adjust the
2. Press S2001 to call up the ADJ IN
mode and select the following subject.
Group:
VIDEO 2
Subject:
TI NT
(B-Y) signal waveform to slope down
straight.
-. -.
. .
3. Connect
the dual-beam
oscilloscope
between pin (5) of P803 and GND.
-
11
Component tint
1. Feed the NTSC half-color bar signal to
l
Using the A and v keys, adjust the
(DAC)
the component
terminal.
(B-Y) signal waveform to slope down
2. Press S2001 to call up the ADJ IN
straight.
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.
p
12
Sub-bias (DAC)
1. Receive
the NTSC
IO-step
pattern
l
Using the A and v keys, adjust the
(gamma
signal.
difference between the white levels
correction on)
2. Connect
the dual-beam
oscilloscope
to 3.25kO.05 Vp-p.
between pin (2) of PI401 and GND.
3. Press S2001 to call up the ADJ IN
mode and select the following subject.
Group:
VIDEO 2
Subject:
SUB-BIAS
-/I?
13
R-drive
B-drive
1. Receive
the NTSC
lo-step
pattern
l
Using the A and v keys, adjust the
signal.
difference
between
the first-step
2. Connect
the dual-beam
oscilloscope
level and the tenth-step
level to
between
pin (3)(R) (or pin (l)(B))
of
2.35kO.05 Vp-p.
P1401 and GND.
- - - .
3. Press S2001 to call up the ADJ IN
mode and select the following subject.
I
t
1-4
I
I
I
Group:
VIDEO 2
I
'
I
I
Subject:
R-DRIVE, B-DRIVE
I
I
I
f
,
------e-m
----e-B-
21

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