JVC AV-29VT11/P Service Manual page 21

Measuring
Item
instrument
SUB Remote
control unit
COLOR 1
adjustment
Signal
SUB
COLOR 2 generator
adjustment
Oscilloscope
Remote
control unit
C
Y
W
Test point Adjustment part
[2. VC]
5. COLOR
TP-47G [2. VC]
TP-E 5. COLOR
[CRT
SOCKET
PWB]
B
M
R
(A)
(–)
0V
(+)
G
Description
[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".
- NTSC 3.58 COLOR -
(1) Receive a NTSC 3.58 broadcast.
(2) Select 2. VC from the SERVICE MENU.
(3) Select 5. COLOR.
(4) Set the initial setting value for NTSC 3.58 COLOR.
(5) If the color is not best with the initial setting value, make
fine adjustment until you get the best color.
(6) Press the [DISPLAY] key twice to return to the normal
screen.
- NTSC 4.43 COLOR -
When adjustment is done for NTSC 3.58 COLOR, appropriate
values are automatically set for NTSC 4.43 COLOR.
- PAL COLOR -
(1) Input a PAL signal.
(2) Press the [COLOR SYSTEM] key to select the PAL color
system.
(3) Make similar fine adjustment of PAL COLOR in the same
way as for "NTSC 3.58 COLOR".
[Method of adjustment using measuring instrument]
Notes:
•
Proceed to the following adjustment after having completed
the SUB CONTRAST adjustment.
•
Set PICTURE MODE (VSM) to "BRIGHT".
- NTSC 3.58 COLOR -
(1) Receive a NSTC 3.58 color bar signal (full field color bar
75% white).
(2) Select 2. VC from the SERVICE MENU.
(3) Select 5. COLOR.
(4) Set the initial setting value of NTSC 3.58 COLOR.
(5) Connect the oscilloscope between TP-47G and TP-E.
(6) Adjust NTSC 3.58 COLOR to set the value (A) in the figure
to +4V [AV-29VT11/P, AV-29VT31/P] or +6V [AV-29VT11/T].
- NTSC 4.43 COLOR -
When adjustment is done for NTSC 3.58 COLOR, appropriate
values are automatically set for NTSC 4.43 COLOR.
- PAL COLOR -
(1) Input a PAL color bar signal (full field color bar 75% white).
(2) Press the [COLOR SYSTEM] key to select the PAL color
system.
(3) Set the initial setting value of PAL COLOR.
(4) Adjust PAL COLOR to set the value (A) in the figure to
+12V [AV-29VT11/P, AV-29VT31/P] or +14V [AV-29VT11/T].
(No. 52195) 1-21