JVC AV-20N3 Service Manual page 23

Measuring
Item
instrument
Remote
Ad justment
control unit
of
SUB BRIGHT
Remote
Ad justment
control unit
of
SUB CONT.
Ad justment Remote
control unit
of
SUB
COLOUR Ⅰ Ⅰ Ⅰ Ⅰ
Test point Ad justment part
3. BRIGHT
4. CONT .
5. COLOUR
PAL COLOUR
SECAM COLOUR
NT SC 3.58 COLOUR
NT SC 4.43 COLOUR
No. 52025
Description
1. Receive any broadc ast.
2. Enter the SERVICE MENU.
3. Select 2. V/C from SERVICE MENU.
4. Select 3. BRIGHT with the MENU ▼/▲key.
5. Set the initial setting value with the MENU - / + key.
6. If the brightness is not the bes t with the initial set value, make
fine adjustment until you get the best brightness.
1. Receive any broadc ast.
2. Enter the SERVICE MENU.
3. Select 2. V/C from SERVICE MENU.
4. Select 4. CONT. with the MENU ▼/▲key.
5. Set the initial setting value with the MENU - / + key.
6. If the contrast is not the best with the initial s et value, make fine
adjustment until you get the best contrast.
[Method of adjustm ent without m easuring instrument]
1. Receive a PAL broadc ast.
2. Enter the SERVICE MENU.
3. Select 2. V/C from the SERVICE MENU.
4. Select 5. COLOUR with the MENU ▼ / ▲ key.
5. Set the initial setting value for PAL COLOUR with the MENU
- / + key.
6. If the colour is not the best with the initial set value, make fine
adjustment until you get the best colour.
1. Receive a SECAM broadc ast.
2. Make fine adjustment of SECAM COLOUR as previously.
1. Receive a NTSC 3.58MHz broadcast.
2. Make similar fine adjustment of NTSC 3.58 COLOUR as
previously.
When NTSC 3.58 adjustment completed, NTSC 4.43 will be
automatic ally set at the respective values.
AV-20N3
AV-20NMG3
AV-20NMG3B
23