JVC AV-65WP74/HA Service Manual page 64

AV-65WP74
Measuring
Item
instrument
SUB COLOR / Signal
generator
SUB TINT /
B-Y GAIN
Oscilloscope
Adjustment (2)
Remote
control unit
Setting value
Setting item
A [V]
STANDARD
Signal
S01
(W-R)
NTSC +28
480i +19
480p +19
1080i +7
1-64 (No.52096)
Test point Adjustment part
TP-R [1.PICTURE/SOUND]
TP-B S01 : COLOR
TP-E (GND) S02 : TINT
S07 : B-Y
(-)
(+)
W
Y (W-Y) R (W-R)
Fig.1
(-)
(+)
W
(W-B)
B
Fig.2
Setting
Setting value
value
B [V]
C [V]
THEATER STANDARD
S02 S01 S02 S07
(W-Y) (W-R) (W-Y) (W-B)
+14 +19 +7 +10
+11 +7 +1 -17
+14 +11 +2 -25
+6 +5 +7 -24
Table
[ Method of adjustment with measuring instrument ]
(1) Receive NTSC color bar signal.
(2) Select STANDARD mode with [VIDEO STATUS]
key.
(3) Connect the oscilloscope to TP-R on the R CRT
SOCKET PWB.
(4) Select 1.PICTURE/SOUND from SERVICE MENU.
(5) Select <S01> (COLOR) or <S02> (TINT).
(6) Adjust <S01> and <S02> to be following setting
value A[V]. (Refer to the bellow table)
(7) Press [MUTING] key and memorize the set values.
(8) Select THEATER mode with [VIDEO STATUS] key.
(9) Adjust <S01> and <S02> to be following setting
value B[V] same as above. (Refer to the bellow
table)
(10) Press [MUTING] key and memorize the set values.
(11) Select STANDARD mode with [VIDEO STATUS]
0
key.
(12) Connect the oscilloscope to TP-B on the B CRT
SOCKET PWB.
(13) Adjust <S07> (B-Y) to be setting value C[V]. (Refer
to the bellow table)
(14) Press [MUTING] key and memorize the set values.
(15) Select THEATER mode with [VIDEO STATUS] key.
(16) Adjust <S07> to be setting value D[V]. (Refer to the
bellow table)
(17) Press [MUTING] key and memorize the set values.
(18) Confirm that LOW-LIGHT is not different after
adjusting COLOR, TINT and B-Y GAIN. If it is green
0
or magenta, to adjust LOW-LIGHT again. If adjust
again, to set offset value again.
(19) Press [MUTING] key and memorize the set values.
(20) Input 480i component color bar from COMPONENT
VIDEO terminal.
(21) Repeat steps 2 ~ 19 above.
(22) Input 480p component color bar from COMPONENT
VIDEO terminal.
(23) Repeat steps 2 ~ 19 above.
Setting
(24) Input
value
D [V]
COMPONENT VIDEO terminal.
(25) Repeat steps 2 ~ 19 above.
THEATER
S07
(W-B)
+18
+2
+12
-9
Description
1080i component color bar from