20
No. 51908
AV-21L31
AV-25L31
Item
Measuring
instrument
Test point
Adjustment part
Description
Adjustment
of
SUB BRIGHT
Remote
control unit
Notes:
• Proceed to the following adjustment after having completed the ad-
justments of LOW LIGHT WHITE BALANCE and HIGH LIGHT WHITE
BALANCE.
• Set PICTURE MODE (VSM) to “BRIGHT”.
1. Receive a broadcast.
2. Select
2. VC
from the SERVICE MENU.
3. Select
3. BRIGHT
with the MENU
&
/
^
key.
4. Set the initial setting value with the MENU –/+ key.
5. If the brightness is not best with the initial setting value, make fine
adjustment until you get the best brightness.
6. Press the DISPLAY key twice to return to the normal screen.
3. BRIGHT
Adjustment
of
SUB
CONTRAST
Remote
control unit
Notes:
• Proceed to the following adjustment after having completed the ad-
justment of SUB BRIGHT.
• Set PICTURE MODE (VSM) to “BRIGHT”.
1. Receive a broadcast.
2. Select
2. VC
from the SERVICE MENU.
3. Select
4. PICTURE
with the MENU
&
/
^
key.
4. Set the initial setting value with the MENU –/+ key.
5. If the contrast is not best with the initial setting value, make fine
adjustment until you get the best contrast.
6. Press the DISPLAY key twice to return to the normal screen.
4. PICTURE
Adjustment
of WHITE
BALANCE
(High light)
Signal
generator
Remote
control
unit
2. DRIVE (R)
DRIVE (G)
DRIVE (B)
Notes:
• Proceed to the following adjustment after having completed the ad-
justment of LOW LIGHT WHITE BALANCE.
• Set PICTURE MODE (VSM) to “BRIGHT”.
1. Receive a NTSC black and white signal (color off).
2. Select
2. VC
from the SERVICE MENU.
3. Select
2. DRIVE (R)
,
(G)
and
(B)
with MENU
&
/
^
key, and set
each value to initial setting value with the
4
to
9
keys on the remote
control unit.
4. Use the keys
4
to
9
to produce a white screen.
5. Press the DISPLAY key twice to return to the normal screen.
Setting (Adjustment)
Variable
Initial setting
Item
range
value
R
–30 — +31
0
2. DRIVE
G
–30 — +31
0
B
–30 — +31
0
G. DRIVE (
8
)
1
2
3
4
7
8
9
5
6
R. DRIVE (
8
)
B. DRIVE (
8
)
B. DRIVE (
9
)
R. DRIVE (
9
)
G.DRIVE (
9
)
REMOTE CONTROL UNIT
NTSC3.58
1. DRIVE
60 Hz
(R)
(G)
**
**
(B)
**
V/C
MENU
89
: SELECT
MENU - / + : OPERATE
DISPLAY : EXIT
