Sharp XV-C1E Service Manual page 17

No.
Adjustment Item
NTSC colour
(DAC) (gamma
correction on)
(DAC) (gamma
correction on)
(DAC) (gamma
correction on)
Counter-bias
Adjustment Conditions
1. Receive the NTSC half-colour bar
signal.
2. Press S2001 to call up the ADJ IN
mode and select the following subject.
Group: VIDEO 1
Subject: COLOR
3. Connect the oscilloscope between pin
(3) of PI401 and GND.
2. Press S2001 to call up the ADJ IN
mode and select the following subject.
Group: VIDEO 3
Subject: PAL-COLOR
3. Connect the oscilloscope between pin
(3) of P1401 and GND.
1. Receive the SECAM half-colour bar (E-
1 OCH) signal.
2. Press S2001 to call up the ADJ IN
mode and select the following subject.
Group: VIDEO 3
Subject: SECAM-COLOR
3. Connect the oscilloscope between pin
(3) of PI401 and GND.
1. Receive the NTSC monoscope pattern
signal.
signal.
2. Press S2001 to call up the ADJ IN
mode and select the following subject.
Group: VIDEO 2
Subject: R-BIAS, B-BIAS'
17
Adjustment Procedure
A
Using the and v keys, make the
l
100% white portion and the primary
red portion at the same level.
Using the A and v keys, adjust the
l
difference between the 100% white
level and the red level to 0.25iO.05
vp-p.
+ Using the A and v keys, adjust the
difference between the 100% white
level and the red level to 0.25kO.05
VP-P.
is achieved.
Using the A and v keys, visually
l
adjust the white balance to be the
same as that on the monitor screen.