JVC AV-20N3 Service Manual page 26

AV-20N3
AV-20NMG3
AV-20NMG3B
Measuring
Item
instrument
Remote
Ad justment
control unit
of SECAM
BL ACK
Signal
OFFSET gener ator
KEY ASSIGNMENT OF REMOTE CONTROL UNIT
COLOUR
ON
1
COLOUR
OFF
4
7
26
Test point Ad justment part
7.SECAM
BL ADJUST
2 3
5 6
8
9
[Method of adjustment using measur ing instrument]
1. Input a SECAM full field c olour 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 – or + MENU key.
6. Switch the ① key (c olour OFF) and ② key (c olour ON) on the
remote control and make sure that there is no colour on the
blac k and white screen.
7. If the black and white s creen is not bes t 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 c ontrol
unit.
9. Press the DISPLAY key twice to return to the normal screen.
No. 52025
Description