JVC AV-32S565 Series Service Manual page 40

Measuring
Item
instrument
SUB COLOR / Signal
SUB TINT / generator
B-Y GAIN (2)
Oscilloscope
Remote
control unit
W
W
A
Setting
STANDARD
value
(W-R) (W-Y)
S01 S02
NTSC(4:3) +40V +12V
480i(4:3) +36V +15V
480p(4:3) +42V +17V
1080i (16:9) +27V +4V
Test point Adjustment part
TP-R [1.PICTURE/SOUND]
TP-B S01: COLOR
TP-E S02: TINT
[CRT SOCKET S07: B-Y
PWB]
C
G
B
(-)
M
(+)
Y (W-Y) R (W-R)
Y
G
R
(-)
C
0
(+)
(W-B)
M
B
B C
THEATER STANDARD
(W-R) (W-Y) (W-B)
S01 S02 S07
+22V 0V +10V
+15V +3V +1V
+19V +3V +1V
+15V +5V -13V
Method of adjustment using measuring instrument
(1) Receive the composite NTSC color bar (75% white)
signal.
(2) Set the VIDEO STATUS to STANDARD.
(3) Set the COLOR TEMPERATURE to LOW.
(4) Select 1.PICTURE/SOUND from the SERVICE
MODE.
(5) Connect the oscilloscope between TP-R and TP-E.
(6) Adjust the < S01 > (COLOR) and < S02 > (TINT) to
be the following setting value A [V].
(7) Connect the oscilloscope between TP-B and TP-E.
(8) Adjust the < S07 > (B-Y) to be setting value C [V] .
(9) Press the [MUTING] key to memorize the set value.
(10) Set the VIDEO STATUS to THEATER.
(11) Set the COLOR TEMPERATURE to HIGH.
(12) Adjust the < S01 > and < S02 > to be the following
setting value B [V].
(13) Adjust the < S07 > to be setting value D [V].
(14) Press the [MUTING] key to memorize the set value.
0
(15) Input the 480i component color bar signal to
COMPONENT VIDEO terminal.
(16) Repeat the steps 2. to 14. as above.
(17) Input the 480p component color bar signal to
COMPONENT VIDEO terminal.
(18) Repeat the steps 2. to 14. as above.
(19) Input the 1080i component color bar signal to
COMPONENT VIDEO terminal.
(20) Repeat the steps 2. to 9. as above.
(21) Set the VIDEO STATUS to THEATER.
(22) Set the COLOR TEMPERATURE to LOW.
(23) Repeat the steps 12. to 14. as above.
NOTE:
• Confirm that the low-light is not different after
adjusting COLOR, TINT and B-Y. If it is green or
magenta, adjust the low-light again.
• If the readjustment is carried out, set the off set values
again.
D
THEATER
(W-B)
S07
+10V
+1V
-1V
-4V
Description
(No.YA093)1-39