JVC AV-21U4 Service Manual page 21

Measuring
Item
instrument
SUB TINT 2 Signal
adjustment generator
Oscilloscope
Remote
control unit
(B)
W
Test point Adjustment part
TP-47G [2. V/C]
TP-E 7. TINT
[CRT SOCKET
PWB]
B
M
R
C
(–)
0V
G
(+)
Y
Description
[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 TINT -
(1) Input a NTSC 3.58 colour bar signal (full field colour
bar 75% white).
(2) Press the [COLOUR SYSTEM] key to select the
NTSC 3.58 colour system.
(3) Select 2. V/C from the SERVICE MENU.
(4) Select 7. TINT.
(5) Set the initial setting value of NTSC 3.58.
(6) Connect the oscilloscope between TP-47G and TP-E.
(7) Adjust NTSC 3.58 TINT to set the value (B) in the
figure to +3V.
(8) Press the [DISPLAY] key twice to return to the
normal screen.
- NTSC 4.43 TINT -
When adjustment is done for NTSC 3.58 TINT,
appropriate values are automatically set for NTSC 4.43
TINT.
(No.YA252)1-21