Service manual

X&XV1 E/A
No.
Adjusting point
Adjusting conditions
Adjusting procedure
5 RGB 1 system 1. Make the following choice:
l Choose the subject RI-BLK and adjust the black peak
black level Group : OUTPUT 1
level to 2.7 +O.l V DC using the membrane switch or
signal amplitude Subject : RI-BLK
the remote control button.
Rl -GAIN
l Next, choose the subject Rl -GAIN and adjust the sig-
(The colour bar test pattern
nal amplitude to 3.3 +O.l Vp-p.
is outputted automatically.)
@ Make the same adjustment for green and blue.
For green, choose the sub-
jects Gl-BLK and Gl-
GAIN.
For black, choose the sub-
3.3vp-p
jects Bl-BLK and Bl -GAIN.
2. Connect the oscilloscope to
1
- -...--__.____-_
pin (5)(TPllOl) of SC1101
for red.
i _ _
~
.__._ ---..---:.-- _.
Pin (5)(TPl201) of
f
SC1 201 for green
Pin (5)(TPl301) of
2.7V DC
SC1 301 for blue
6
RGB 2 system
1. Make the following choice:
l Choose the subject R2-BLK and adjust the black peak
black level
Group : OUTPUT 2
level to 2.7 +O.lV DC using the membrane switch or
signal amplitude
Subject : R2-BLK(R),
the remote control button.
R2-GAIN
l Next, choose the subject R2-GAIN and adjust the sig-
For green, choose the sub-
nal amplitude to 3.3 kO.1 Vp-p.
jects G2-BLK and G2-
GAIN.
For black, choose the sub-
3.3vp-p
jects B2-BLK and B2-GAIN.
2. Connect the oscilloscope to
l-r
1
. ______._____.__
pin (6)(TPllO2) of SC1 101
for red.
1
_ _ .__._ _-.---_-..__ . .
Pin (6)(TP1202) of
f
SC1 201 for green
Pin (6)(TP1302) of
t 2.7V DC
SC1 301 for blue
l Make the same adjustment for green and blue.
l Feed the XGA gradation pattern single-colour signal
and make sure that there is no difference in bright-
ness between adjacent vertical lines. If there is a dif-
ference, make fine adjustment by choosing the fol-
lowing subjects.
R2-GAIN for red
G2-GAIN for green
B2-GAIN for blue.
7 Sample-and-
hold pulse
phase
1. Feed the SXGA mode black
l Using the membrane switch or the remote control
signal.
button, make such adjustment that the characters on
2. Make the following choice:
the adjustment menu are least blurry or overlapped.
Group : OUTPUT 3
(Make adjustment at the moment when the group
Subject : SH-PHASE
name “OUTPUT3 appears and the subject name “SH-
PHASE” is not yet indicated.)
22