JVC AV-21Q3/D Schematic Diagrams page 37

Measuring
Item
instrument
Remote
Adjustment
control unit
of SECAM
BLACK
Signal
OFFSET generator
KEY ASSIGNMENT OF REMOTE CONTROL UNIT
COLOUR
ON
1
COLOUR
OFF
4
7
Test point Adjustment part
7.SECAM
BL ADJUST
2 3
5 6
8
9
[Method of adjustment using measuring instrument]
1. Input a SECAM full field colour bar signal.
2. Enter the SERVICE MENU.
3. Select 2. V/C from SERVICE MENU.
4. Select 7. SECAM BL ADJUST with MENU ▼/▲ key.
5. Set the initial setting value with the MENU - / + key.
6. Switch the ①key (colour OFF) and ②key (colour ON) on the
remote control and make sure that there is no colour on the
black and white screen.
7. If the black and white screen is not best with the initial setting
value, make fine adjustment until you get the best black and
white screen.
8. While watching the screen, adjust the value to be the same
colour between ON & OFF by ten key on the remote control
unit.
9. Press the DISPLAY key twice to return to the normal screen.
No. 52027
AV-21QMG3
AV-2115EE
Description
AV-21Q3
27