JVC AV42PD20ES Service Manual page 31

Measuring
Item
instrument
Ad justment Signal
of SUB gener ator
COLOUR Ⅱ Ⅱ Ⅱ Ⅱ
Oscilloscope
Remote
control unit
W Ye
75%
0%
Cy G
Fig. 1
W
Ye Cy G
75%
0%
Fig. 2
Test point Ad justment part
TP-R 6.COLOUR
TP-E( # # # # )
[CRT
SOCKET
PWB ]
(＋)
A
(W- R)
Mg R
(－)
B
( ＋ )
B
(W- R)
R
Mg B
(－)
[Method of adjustm ent using measur ing instrument]
< PAL COLOUR >
1. Receive a PAL full field colour bar signal (75% white).
2. Select 2.V/C from the SERVICE MENU.
3. Select 6.COLOUR with the FUNCTION ▲/▼ key.
4. Set the initial setting value of PAL COLOUR with the
FUNCTION /
5. Connect the osc illosc ope between TP-R and TP-E
6. Adjust PAL COLOUR and bring the value of (A) in the to
illustration (Fig.1) to -140mV(W-R).
7. Press the MENU (OK) key and memorize the setting value.
< SECAM COLOUR >
1. Receive a SECAM full field c olour bar signal (75% white).
2. Set the initial setting value of SECAM COLOUR with the
FUNCTION /
3. Adjust SECAM COLOUR and bring the value of (A) in the
illustration (Fig.2) to -140mV(W-R).
4. Press the MENU (OK) key and memorize the setting value.
< NT SC 3.58 COLOUR >
1. Input a NTSC 3.58MHz COMPOSITE VIDEO signal (full field
colour bar with 75% white) from the EXT terminal.
2. Set the initial s etting value of NTSC 3.58 COLOUR with the
FUNCTION /
3. Adjust NTSC 3.58 COLOUR and bring the value of (B) of the
illustration (Fig.1) to -140mV(W -B).
4. Press the MENU (OK) key and memorize the setting value.
< NT SC 4.43 COLOUR >
1. When NTSC3.58 adjustment has done, then
adjustment will be automatically s et at the respec tive values.
No. 51955
AV42PD20ES
Description
key.
key.
key.
NTSC4.43
31