JVC AV28R100EKS, Service Manual

Page: 56 / 93

No. 51754
AV-29RF6
24
Item
Measuring
instrument
Test point Adjustment part Description
6. TINT
[Adjustment method without measuring instrument]
NTSC 3.58 TINT
1. receive the NTSC 3.58MHz broadcast.
2. Select 2.V/C from the SERVICE MENU.
3. Select 6. TINT with the MENU UP/DOWN key.
4. Set the initial setting value of NTSC 3.58 TINT with the MENU
LEFT/RIGHT key.
5. If you cannot get the best tint with the initial setting value, make
fine adjustment until you get the best tint.
6. Press the OK key and memorize the set value.
Adjustment
of
SUB TINT
Ⅰ
Ⅰ Ⅰ
Ⅰ
Remote
control unit
NTSC 4.43 TINT
1. When NTSC 3.58 is set, NTSC 4.43 will be automatically set at
the respective values.
6. TINT
[Adjustment method using measuring instrument]
NTSC 3.58 TINT
1. Input the NTSC 3.58MHz full field colour bar signal (with 75%
white).
2. Select 2.V/C from the SERVICE MENU.
3. Select 6. TINT with the MENU UP/DOWN key.
4. Set the initial setting value of NTSC 3.58 TINT with the MENU
LEFT/RIGHT key.
5. Connect the oscilloscope between TP-47G and TP-E(
!
)
6. Adjust NTSC 3.58 TINT to bring the value of (B) in the
illustration to
+6V
(voltage difference between white (W) and
cyan (Cy)).
7. Press the OK key and memorize the setting value
Adjustment
of
SUB TINT
Ⅱ Ⅱ Ⅱ Ⅱ
Signal
generator
Oscilloscope
Remote
control unit
TP-47G
TP-E(
! ! ! !
)
[CRT
SOCKET
PWB]
NTSC 4.43 TINT
1. When NTSC 3.58 is set, NTSC 4.43 will be automatically set at
the respective values.
(B)
W
Cy
G
Mg
B
R
Y
0V
( － )
(
＋
)