JVC AV-32220/G Service Manual page 22

AV-32220
ADJUSTMENT OF VIDEO / CHROMA CIRCUIT
Measuring
Item
instrument
WHITE Signal
BALANCE
generator
(Low Light)
adjustment
[LOW LIGHT] MODE
R CUTOFF
BRIGHT
***
Remote Control Unit
H.LINE ON
1
R CUTOFF
4
R CUTOFF
7
22
Test point Adjustment part
BRIGHT
R CUTOFF
G CUTOFF
B CUTOFF
SCREEN VR
[ In HVT]
G CUTOFF
BRIGHT
B CUTOFF
***
*** ***
H.LINE OFF
EXIT
3
2
G CUTOFF B CUTOFF
6
5
G CUTOFF B CUTOFF
9
8
1. Receive a black-and-white signal. (Color off)
2. Select the [LOW LIGHT] MODE from the SERVICE MENU.
3. Set the initial setting value of "BRIGHT" is 64. with the
LEFT/RIGHT key of the remote control unit.
4. Set the initial setting value of "R CUTOFF", "G CUTOFF" and
"B CUTOFF" is 20. with the ④ ④ ④ ④ to ⑨ ⑨ ⑨ ⑨ keys of the remote
control unit.
5. Display a single horizontal line by pressing the ① ① ① ① key of the
remote control unit.
6. Turn the screen VR all the way to the left.
7. Turn the screen VR gradually to the right from the left until
either one of the red, blue or green colors appears faintly.
8. Adjust the two colors which did not appear until the single
horizontal line that is displayed becomes white using the ④ ④ ④ ④ to
⑨ ⑨ ⑨ ⑨ keys of the remote control unit.
9. Turn the screen VR until the single horizontal line is displayed
faintly.
10. Press the ② ② ② ② key to return to the regular screen.
! The ③ ③ ③ ③ EXIT key is the cancel key for the WHITE BALANCE.
No. 51782
Description