JVC AV32L2EUBL, Service Manual

Page: 22 / 108

No. 51817
AV32L2EUGR
AV32L2EUBL
AV32L2EUGY
22
Item
Measuring
instrument
Test point Adjustment part Description
8.HUE [Method of adjustment without measuring instrument]
NTSC 3.58 HUE
[NTSC 3.58 HUE]
･････････････････
(NTSC only)
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 -/+ 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
Ⅰ
Ⅰ Ⅰ
Ⅰ
Remote
control unit
NTSC 4.43 HUE [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 [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 - or + 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 -1V (voltage difference between white (W) and
magenta(Mg)).
7. Press the MENU key and memorize the setting value
Adjustment
of
SUB HUE
Ⅱ Ⅱ Ⅱ Ⅱ
Signal
generator
Oscilloscope
Remote
control unit
TP-47B
TP-E(
# # # #
)
[CRT
SOCKET
PWB]
NTSC 4.43 HUE [NTSC 4.43 HUE]
1. When NTSC 3.58 is set, NTSC 4.43 will be automatically set at
the respective values.
Adjustment
of VCO
for colour
decoder
Signal
generator
Remote
control unit
10. VCO
1. Input a PAL harf colour bar signal (75% white) from the EXT
terminal.
2. Select 2. V/C from the SERVICE MENU.
3. Select 10. VCO adjustment with the FUNCTION UP/DOWN
key.
4. Press the OK key then automatically optimized.
0
W
Cy Mg B
(B)
(+)
(-)