JVC AV-65WP74/HA, Service Manual

Page: 63 / 126

AV-65WP74
(No.52096)1-63
SUB
CONTRAST
adjustment Signal
generator
Remote
control unit
[1.PICTURE/SOUND]
S04: CONTRAST (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 2)
(7) If the contrast is not the best with the initial setting
value, make fine adjustment of the <S04> until you
get the optimum contrast.
(8) Press [MUTING] key and memorize the set values.
(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 2)
(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.
Table 2
SUB COLOR /
SUB TINT /
B-Y GAIN
adjustment (1) Signal
generator
Remote
control unit
TP-R
TP-B
TP-E (GND) [1.PICTURE/SOUND]
S01 : COLOR
S02 : TINT
S07 : B-Y [ 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.
Item
Measuring
instrument
Test point Adjustment part Description
Signal
Item
S04
STANDARD THEATER
NTSC 480i 1080i
Setting value
052 045
STANDARD THEATER
046
STANDARD THEATER
044 065
065