JVC AV29A10EUS Service Manual page 26

AV29A10EUS
Measuring
Item
instrument
Adjustment Remote
of control unit
SUB HUE! ! ! !
Adjustment Signal
of generator
SUB HUE" " " "
Oscilloscope
Remote
control unit
W
Cy
26
Test point Adjustment part
8.HUE
NTSC 3.58 HUE
NTSC 4.43 HUE
TP-47B 8.HUE
TP-E(# # # # )
[CRT
SOCKET
NTSC 3.58 HUE
PWB]
(B)
(-)
0
Mg
B
(+)
NTSC 4.43 HUE
[Method of adjustment without measuring instrument]
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.
1. When NTSC 3.58 is set, NTSC 4.43 will be automatically set at
the respective values.
[Method of adjustment using measuring instrument]
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
1. When NTSC 3.58 is set, NTSC 4.43 will be automatically set at
the respective values.
No. 51818
Description