JVC AV-48WP74/AHA Service Manual page 62

AV-48WP74
AV-56WP74
Measuring
Item
instrument
SUB Signal
generator
CONTRAST
adjustment
Remote
control unit
Signal
Item
STANDARD
S04
SUB COLOR / Signal
generator
SUB TINT /
B-Y GAIN
Remote
adjustment (1)
control unit
1-60 (No.52105)
Test point
[1.PICTURE/SOUND]
S04: CONTRAST
Setting value
NTSC 480i
THEATER STANDARD THEATER
052 045 065 046
TP-R [1.PICTURE/SOUND]
TP-B S01 : COLOR
TP-E (GND) S02 : TINT
S07 : B-Y
Adjustment part
(1) Receive NTSC black & white signal.
(2) Select STANDARD mode with [VIDEO STATUS]
key.
(3) The COLOR TEMP is set at the LOW mode.
(4) Select 1.PICTURE/SOUND from SERVICE MENU.
(5) Select <S04> (CONTRAST).
(6) Set Initial setting value. (See Table)
(7) If the contrast is not the best with the initial setting
value, make fine adjustment of the <S04> until you
1080i
get the optimum contrast.
STANDARD THEATER
(8) Press [MUTING] key and memorize the set values.
065 044
(9) Select THEATER mode with [VIDEO STATUS] key.
(10) Select 1.PICTURE/SOUND from SERVICE MENU.
(11) Select <S04>.
(12) Set Initial setting value. (See Table)
(13) If the contrast is not the best with the initial setting
value, make fine adjustment of the <S04> until you
get the optimum contrast.
(14) Input 480i component black & white signal from
COMPONENT VIDEO terminal.
(15) Repeat steps 2 ~ 13 above.
(16) Receive 1080i component black & white signal from
COMPONENT VIDEO terminal.
(17) Repeat steps 2 ~ 13 above.
[ Method of adjustment without measuring instrument ]
(1) Receive NTSC color bar signal.
(2) Select STANDARD mode with [VIDEO STATUS]
key.
(3) Select 1.PICTURE/SOUND from SERVICE MENU.
(4) Select <S01> (COLOR) or <S02> (TINT).
(5) Set the initial setting values.
(6) If the color or tint is not the best with the initial setting
values, make fine adjustment until you get the best
color or the best tint.
(7) Select <S07> (B-Y).
(8) Set the initial setting values.
(9) If the color bar is not clearly with the initial setting
value, make fine adjustment until you get the clearly
color bar.
(10) Press [MUTING] key and memorize the set values.
(11) Select THEATER mode with [VIDEO STATUS] key.
(12) Select <S01> or <S02> .
(13) Set the initial setting values.
(14) If the color or tint is not the best with the initial setting
values, make fine adjustment until you get the best
color or the best tint.
(15) Select <S07>.
(16) Set the initial setting values.
(17) If the color bar is not clearly with the initial setting
value, make fine adjustment until you get the clearly
color bar.
(18) Press [MUTING] key and memorize the set values.
(19) Input 480i component color bar signal from
COMPONENT VIDEO terminal.
(20) Repeat steps 2 ~ 18 above.
(21) Input 480p component color bar signal from
COMPONENT VIDEO terminal.
(22) Repeat steps 2 ~ 18 above.
(23) Input 1080i component color bar signal from
COMPONENT VIDEO terminal.
(24) Repeat steps 2 ~ 18 above.
Description