JVC AV-56WP74 Service Manual page 58

AV-48WP74
AV-56WP74
Measuring
Item
instrument
WHITE Signal
generator
BALANCE
(LOW LIGHT)
Remote
adjustment
control unit
BRIGHT LEVEL
DRIVE
CUTOFF
SETTING VALUE
NTSC
BR
DRV
CUT
480i
BR
DRV
CUT
1080i
BR
DRV
CUT
R CUTOFF
R CUTOFF
1-58 (No.52105)
Test point
[1.PICTURE/SOUND]
S14: CUTOF R
S16: CUTOF G
S18: CUTOF B
S20: CUTOF SW R
S21: CUTOF SW G
S22: CUTOF SW B
3. WHITE BALANCE
BR
DRV R B
CUT R G B
Setting value
133
R 073 B 060
R 188 G 149 B 215
R 074 B 058
R 194 G 149 B 210
R 074 B 058
R 195 G 149 B 210
REMOTE CONTROL UNIT
EXIT
1 2 3
G CUTOFF B CUTOFF
4 5 6
G CUTOFF B CUTOFF
7 8 9
OSD ON/OFF
0
Adjustment part
(1) Receive NTSC black & white pattern signal (color
off).
(2) Select STANDARD mode with [VIDEO STATUS]
key.
(3) The COLOR TEMP is set at the LOW mode.
(4) Select 3.WHITE BALANCE from SERVICE MENU.
(5) Increase bright level to confirm LOW-LIGHT with
[VOL +] key.
(6) Adjust using [ 4 ] / [ 7 ] (R CUTOFF), [ 6 ] / [ 9 ] (B
CUTOFF) key so that a black portion may become
black.
(7) Press [MUTING] key and memorize the set values.
(8) Input 480i component black & white pattern signal
from COMPONENT VIDEO terminal.
(9) Repeat steps 5 ~ 7 above.
(10) Input 1080i component black & white signal from
COMPONENT VIDEO terminal.
(11) Repeat steps 5 ~ 7 above.
NOTE :
Before starting the adjustment, warm up the unit for
more than 30 minutes.
Description