JVC LT-32C31BJE Service Manual page 41

Measuring
Item
instrument
SUB Remote control
CONTRAST unit
Signal generator
White part
Black and white pattern signal
<NG>
PAL/SECAM/ Remote control
NTSC unit
SUB COLOUR
Signal generator
Set the red colour of the colour bar to be the deepest.
B/W
(Except red)
COLOUR
W Y
Set the red colour of the colour bar to be the deepest.
B/W
(Except red)
COLOUR
W Y
Test point Adjustment part
[2. V/C]
10. CONT
(Contrast)
White part to be white.
Black and white pattern signal
<OK>
Fig.5
[2.V/C]
13. COLOUR
(Colour)
C G M R B
Fig.6
C G M R B BL
Fig.7
Description
(1) Receive a PAL black and white pattern signal
(colour off).
(2) Select "2. V/C" from the SERVICE MENU.
(3) Adjust < 10. CONT > (Contrast) to set the white part
to be white.
(4) Press the [OK] key to memorize the set value.
- PAL COLOUR -
(1) Receive a PAL colour bar signal (full field colour
bar).
(2) Select "2. V/C" from the SERVICE MENU.
(3) Adjust < 13. COLOUR > (Colour) to set the red
colour of the colour bar signal to be the reddest.
(See Fig.6)If noise is not completely deleted, adjust
< 13. COLOUR > so that the red colour has the
minimum noise.
NOTE:
If you select an adjustment item < 13. COLOUR >,
then the screen turns to an adjustment screen
shown in Fig.6.
(4) Press the [OK] key to memorize the set value.
(5) Press the [INFORMATION] key twice to the normal
screen.
- SECAM COLOUR -
(1) Receive a SECAM colour bar signal (half colour
bar).
(2) Select "2. V/C" from the SERVICE MENU.
(3) Make similar adjustment of SECAM COLOUR in the
same way as for "PAL COLOUR". (See Fig.7)
- NTSC COLOUR -
(1) Input a NTSC 3.58 composite colour bar signal (full
field colour bar 75% white).
(2) Select "2. V/C" from the SERVICE MENU.
(3) Make similar adjustment of NTSC COLOUR in the
same way as for "PAL COLOUR". (See Fig.6)
(4) Input a NTSC 4.43 composite colour bar signal (full
field colour bar 75% white), and then check the red
colour of the colour bar signal and confirm that there
is no noise or the minimum noise.
(No.YA015)1-41