JVC AV-56WP30 Service Manual page 46

AV-56WP30
Measuring
Item
Instrument
SUB COLOR / Signal
SUB TINT / gener ator
B-Y GAIN
adjustment
Oscilloscope
Remote
control unit
W
W
Setting valu e
A[V]
Setting
Standard
item
Sig nal S01 S02
VCM004 VCM001
(W-R) (W-Y)
NTSC +28 +14
1080i +7 +6
480i +19 +11
480p +19 +14
46
Test point Ad justment Item
TP-R
S01 : SUB COLOR
TP-B
S02 : SUB TINT
TP-E(# # # # )
S07 : B-Y GAIN
VCM004 :
SUB COLOR
VCM001 : SUB TINT
(-)
0
(+)
Y (W - Y ) R (W - R)
Fig. 1
(-)
0
(+)
(W - B)
B
Fig. 2
Setting
Setting valu e
value
B[V]
C[V]
Th eater Standard
S01 S02 S07
(W-R) (W-Y) (W-B)
+19 +7 +10
+5 +7 -24
+7 +1 -17
+11 +2 -25
Table
NT SC adjustment
1. Receive the NTSC color bar.
2. Select ST ANDARD mode.
3. Connect the osc illosc ope to TP-R.
4. Select 8.PP from SERVICE MENU.
5. Adjust VCM004 ＜SUB COLOR＞ and VCM001 ＜SUB
TINT＞ to be following setting value A[V]. (Refer to the
bellow table)
6. Select THEATER mode and then adjust S01＜ SUB
COLOR＞ and S02 ＜ SUB TINT＞ to be following
setting value B[V] s ame as above. (Refer to the bellow
table)
7. Connect the osc illosc ope to TP-B.
8. Select standard and then adjust S07＜B-Y GAIN＞ to
be setting value C[V]. (Refer to the bellow table)
9. Select theater and then adjust S07 ＜ B-Y GAIN ＞ to be
setting value D[V]. (Refer to the bellow table)
10. Confirm that low-light is not different after adjusting
COLOR, TINT and B-Y GAIN. If it is green or magenta,
to adjust low-light again. If adjust again, to s et offset
value again.
11. Press the MUTING key and memorize the s et values.
Comp onent input (480i / 480p / 1080i) adjustment
1. Input the 480i component color bar from COMPONENT
VIDEO terminal.
2. Select ST ANDARD mode.
3. Select 1.PICTURE/SOUND from SERVICE MENU.
4. Connect the osc illosc ope to TP-R.
5. Adjust S01＜ SUB COLOR＞ and S02＜SUB TINT＞
to be following s etting value A[V]. (Refer to the bellow
table)
6. Select THEATER and then adjust S01＜SUB COLOR＞
and S02＜SUB TINT＞ to be following s etting value
B[V] same as above. (Refer to the bellow table)
7. Connect the osc illosc ope to TP-B.
8. Select STANDARD mode and then adjust S07＜ B-Y
GAIN＞ to be setting value C[V]. (Refer to the bellow
Setting
table)
value
9. Select THEATER mode and then adjust S07 ＜ B-Y
D[V]
GAIN＞ to be setting value D[V]. (Refer to the bellow
Th eater
table)
S07
10. Input 480p component color bar from COMPONENT
(W-B)
VIDEO terminal and then repeat steps 3 ～ 9 above.
+18
11. Input 1080i component c olor bar from COMPONENT
-9
VIDEO terminal and then repeat steps 3 ～ 9 above.
+2
12. Confirm that low-light is not different after adjusting
-12
color, Tint and B-Y Gain. If it is green or magenta, to
adjust low-light again. If adjust again, to set offset value
again.
13. Press the MUTING key and memorize the s et values.
No. 52007
Description