JVC AV-21VT14 Service Manual page 21

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Item
SUB COLOR 1 Remote
adjustment control unit
SUB COLOR 2 Signal
adjustment generator
Oscilloscope
Remote
control unit
Measuring
Test point
instrument
TP-47G
TP-E
[CRT SOCKET
PWB]
B
M
R
(A)
C
G
W Y
Digitized in Heiloo Netherland
Adjustment part
[2. V/C] [Method of adjustment without measuring instrument]
6. COLOUR
Notes:
- PAL COLOR -
- SECAM COLOR -
- NTSC 3.58 COLOR -
- NTSC 4.43 COLOR -
[2. V/C] [Method of adjustment using measuring instrument]
6. COLOUR
Notes:
- PAL COLOR -
- SECAM COLOR -
(–)
0V
(+)
- NTSC 3.58 COLOR -
- NTSC 4.43 COLOR -
Description
• Proceed to the following adjustment after having
completed the SUB CONTRAST adjustment.
• Set PICTURE MODE (VSM) to "BRIGHT".
(1) Receive a PAL broadcast.
(2) Select 2. V/C from the SERVICE MENU.
(3) Select 6. COLOUR.
(4) Set the initial setting value for PAL COLOR.
(5) If the color is not best with the initial setting value,
adjust until you get the best color.
(6) Press the [DISPLAY] key twice to return to the
normal screen.
(1) Receive a SECAM broadcast.
(2) Press the [COLOR SYSTEM] key to select the
SECAM color system.
(3) Adjust SECAM COLOR in the same way as for "PAL
COLOR".
(1) Receive a NTSC 3.58MHz broadcast.
(2) Press the [COLOR SYSTEM] key to select the
NTSC 3.58 color system.
(3) Adjust NTSC 3.58 COLOR in the same way as for
"PAL COLOR".
When adjustment is done for NTSC 3.58 COLOR,
appropriate values are automatically set for NTSC 4.43
COLOR.
• Proceed to the following adjustment after having
completed the SUB CONTRAST adjustment.
• Set PICTURE MODE (VSM) to "BRIGHT".
(1) Receive a PAL color bar signal (full field color bar
75% white).
(2) Select 2. V/C from the SERVICE MENU.
(3) Select 6. COLOUR.
(4) Set the initial setting value of PAL COLOR.
(5) Connect the oscilloscope between TP-47G and TP-E.
(6) Adjust PAL COLOR to set the value (A) in the figure
to +12V.
(1) Receive a SECAM color bar signal (color bar 75%
white).
(2) Press the [COLOR SYSTEM] key to select the
SECAM color system.
(3) Set the initial setting value of SECAM COLOR.
(4) Adjust SECAM COLOR to set the value (A) in the
figure to ---.
(1) Receive a NTSC 3.58 color bar signal (full field color
bar 75% white).
(2) Press the [COLOR SYSTEM] key to select the
NTSC 3.58 color system.
(3) Set the initial setting value of NTSC 3.58 COLOR.
(4) Adjust NTSC 3.58 COLOR to set the value (A) in the
figure to +4V.
When adjustment is done for NTSC 3.58 COLOR,
appropriate values are automatically set for NTSC 4.43
COLOR.
7/23/2017
(No.YA140)1-21