JVC AV29A10EUS, Service Manual

Page: 26 / 67

No. 51818
AV29A10EUS
26
Item
Measuring
instrument
Test point Adjustment part Description
8.HUE [Method of adjustment without measuring instrument]
NTSC 3.58 HUE 1. Input a NTSC 3.58MHz COMPOSITE VIDEO signal (full field
colour bar with 75% white) from the EXT terminal.
2. Select 2.V/C from the SERVICE MENU.
3. Select 8.HUE with the FUNCTION UP/DOWN key.
4. Set the initial setting value of NTSC 3.58 HUE with the
FUNCTION LEFT/RIGHT key.
5. If you cannot get the best hue with the initial setting value, make
fine adjustment until you get the best hue.
6. Press the MENU key and memorize the set value.
Adjustment
of
SUB HUE
! ! ! !
Remote
control unit
NTSC 4.43 HUE 1. When NTSC 3.58 is set, NTSC 4.43 will be automatically set at
the respective values.
8.HUE [Method of adjustment using measuring instrument]
NTSC 3.58 HUE 1. Input a NTSC 3.58MHz COMPOSITE VIDEO signal (full field
colour bar with 75% white) from the EXT terminal.
2. Select 2.V/C from the SERVICE MENU.
3. Select 8.HUE with the FUNCTION UP/DOWN key.
4. Set the initial setting value of NTSC 3.58 HUE with the
FUNCTION LEFT/RIGHT key.
5. Connect the oscilloscope between TP-47B and TP-E
6. Adjust NTSC 3.58 HUE to bring the value of
(B)
in the
illustration to
–15V
(voltage difference between white (W) and
magenta (Mg)).
7. Press the MENU key and memorize the setting value
Adjustment
of
SUB HUE
"
" "
"
Signal
generator
Oscilloscope
Remote
control unit
TP-47B
TP-E(
# # # #
)
[CRT
SOCKET
PWB]
NTSC 4.43 HUE 1. When NTSC 3.58 is set, NTSC 4.43 will be automatically set at
the respective values.
0
W
Cy Mg B
(B)
(+)
(-)