JVC AV-27D201 Service Manual page 23

ADJUSTMENT OF VIDEO / CHROMA CIRCUIT
Measuring
Item
instrument
WHITE Signal
BALANCE
generator
(Low Light)
adjustment
Remote
control unit
BRIGHT
BRIGHT



   







R CUTOFF
G CUTOFF
WHITE Signal
BALANCE
generator
(High Light)
adjustment
Remote
control unit
 




 
R DRIVE
Test point Adjustment part
R CUTOFF
G CUTOFF
B CUTOFF
SCREEN VR





B CUTOFF
G DRIVE
B DRIVE
HIGH LIGHT





B DRIVE
1. Input the black and white signal ( color off ).
2. Select the [LOW LIGHT] MODE from the SERVICE MENU.
3. Set the initial setting value of "R CUTOFF", "G CUTOFF" and
"B CUTOFF" with the to     keys of the remote control unit.
4. Display a single horizontal line by pressing the     key of the
remote control unit.
5. Turn the screen VR all the way to the left.
6. Turn the screen VR gradually to the right from the left until
either one of the red, blue or green colors appears faintly.
7. Adjust the two colors of CUTOFF which did not appear until the
single horizontal line that is displayed becomes white using the
to     keys of the remote control unit.
8. Turn the screen VR until the single horizontal line is displayed
faintly.
9. Press the key to cancel the single horizontal line mode.
The EXIT key is the cancel key for the WHITE BALANCE.
Remote Control Unit key assign
H.LINE ON
1
R CUTOFF
4
R CUTOFF
7
1. Input the black-and-white signal ( color off ).
2. Select the [HIGH LIGHT] MODE in the SERVICE MENU.
3. Set the initial setting value of "R DRIVE" and "B DRIVE" with
the , ,     and     keys of the remote control unit.
4. Adjust the screen until it becomes white using the , ,    
and     keys of the remote control unit.
The EXIT key is the cancel key for the WHITE BALANCE.
Remote Control Unit
 key : H.LINE ON
key : H.LINE OFF
key : EXIT
key : R DRIVE $
key : B DRIVE $
 key : R DRIVE %
 key : B DRIVE %
No.51686
AV-27D201
AV-32D201
Description
H.LINE OFF EXIT
3
2
G CUTOFF B CUTOFF
6
5
G CUTOFF B CUTOFF
8 9
key assign
23