JVC AV-56WP74 Service Manual page 56

AV-48WP74
AV-56WP74
Measuring
Item
instrument
A-D Signal
generator
CONVERTER
OFFSET
Remote
adjustment (2)
control unit
1-56 (No.52105)
Test point Adjustment part
[1.PICTURE/SOUND]
F44 : Image
adjustment
F45 : Image
adjustment of mode
change
F47 : Minimum value
B at the time of
detection
F48 : Maximum value
A at the time of
detection
[8.PP]
ADM012 : R offset
AMD013 : G offset
AMD014 : B offset
Whole black
Fig. 3 <SPLIT screen>
Description
[WHITE BALANCE LOW LIGHT ADJUSTMENT for
SPLIT RIGHT SCREEN]
(1) Press [SPLIT] key to enter the SPLIT screen mode.
(2) Select STANDARD with [VIDEO STATUS] key.
(3) Select FULL mode with [ASPECT] key.
(4) Select 1 PICTURE SOUND from SERVICE MENU.
(5) It goes into the zero mode screen of difference
adjustment of color, using <F45>(Image adjustment
mode change) as 0 to 3 and <F44>(Image
adjustment) as 0 to 1.
(6) Set <F47> (minimum value B at the time of
detection) to 0 and <F48> (minimum value A at the
time of detection) to 0.
(7) Press [MUTING] key and memorize the set value.
(8) Press [BACK] key and back to SERVICE MENU.
(9) Select 8.PP from SERVICE MENU.
(10) Adjust <ADM012> (R offset setup) and <ADM014>
(G offset setup) so that right upside screen becomes
whole black.
(11) Press [MUTING] key and memorize the set value.
(12) Select 1.PICTURE/SOUND from SERVICE MENU.
(13) Change the data of <F44> 1 to 0 and <F45> 3 to 0.
(14) Press [MUTING] key and memorize the set value.