JVC AV-29VA15 Service Manual page 20

Measuring
Item
instrument
SUB BRIGHT Remote
adjustment control unit
SUB Remote
CONTRAST control unit
adjustment
SUB COLOUR 1 Signal
adjustment generator
Remote
control unit
1-20 (No.YA282)
Test point Adjustment part
[2. V/C]
4. BRIGHT
[2. V/C]
5. CONT
[2. V/C]
6. COLOUR
Description
Notes:
• Proceed to the following adjustment after having
completed the WHITE BALANCE (Low light) and
WHITE BALANCE (High light) adjustment.
• Set PICTURE MODE (VSM) to "BRIGHT".
(1) Receive a NTSC broadcast.
(2) Select 2. V/C from the SERVICE MENU.
(3) Select 4. BRIGHT.
(4) Set the initial setting value.
(5) If the brightness is not best with the initial setting value,
make fine adjustment until you get the best brightness.
(6) Press the [DISPLAY] key twice to return to the
normal screen.
Notes:
• Proceed to the following adjustment after having
completed the SUB BRIGHT adjustment.
• Set PICTURE MODE (VSM) to "BRIGHT".
(1) Receive a NTSC broadcast.
(2) Select 2. V/C from the SERVICE MENU.
(3) Select 5. CONT.
(4) Set the initial setting value.
(5) If the contrast is not best with the initial setting value,
make fine adjustment until you get the best contrast.
(6) Press the [DISPLAY] key twice to return to the
normal screen.
[Method of adjustment without measuring instrument]
Notes:
• Proceed to the following adjustment after having
completed the SUB CONTRAST adjustment.
• Set PICTURE MODE (VSM) to "BRIGHT".
- PAL COLOUR -
(1) Receive a PAL colour bar signal (full field colour bar
75% white).
(2) Select 2. V/C from the SERVICE MENU.
(3) Select 6. COLOUR.
(4) Set the initial setting value for PAL COLOUR.
(5) If the colour is not best with the initial setting value,
adjust until you get the best colour.
(6) Press the [DISPLAY] key twice to return to the
normal screen.
- SECAM COLOUR -
(1) Receive a SECAM colour bar signal (full field colour
bar 75% white).
(2) Press the [COLOUR SYSTEM] key to select the
SECAM colour system.
(3) Adjust SECAM COLOUR in the same way as for
"PAL COLOUR".
- NTSC 3.58 COLOUR -
(1) Receive a NTSC 3.58MHz broadcast.
(2) Press the [COLOUR SYSTEM] key to select the
NTSC 3.58 colour system.
(3) Adjust NTSC 3.58 COLOUR in the same way as for
"PAL COLOUR".
- NTSC 4.43 COLOUR -
When adjustment is done for NTSC 3.58 COLOUR,
appropriate values are automatically set for NTSC 4.43
COLOUR.