JVC HV-53PRO/K Service Manual page 39

Measuring
Item
instrument
Adjustment Signal
of generator
SUB TINTⅠ Ⅰ Ⅰ Ⅰ
Remote
control unit
Adjustment Signal
of generator
SUB TINTⅡ Ⅱ Ⅱ Ⅱ
Oscilloscope
Remote
control unit
W Y Cy Mg G
R B
(B)
VCO Signal
Adjustment generator
for
COLOUR Remote
DECODER control unit
Test point Adjustment part
8.TINT
TP-47G 8.TINT
TP-E( )
[CRT
SOCKET
PWB]
(-)
0
(+)
10. VCO
No. 51984
Description
[Method of adjustment without measuring instrument]
(NTSC 3.58 TINT)
1. Receive 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.TINT with the function UP / DOWN( ▲ / ▼ ) key.
4. Set the initial setting value of NTSC 3.58 TINT with the function
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 MENU / OK key and memorize the set value.
(NTSC 4.43 TINT)
1. When NTSC 3.58 is set, NTSC 4.43 will be automatically set at
the respective values.
[Method of adjustment using measuring instrument]
(NTSC 3.58 TINT)
1. Receive 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.
0. Select 8.TINT with the function UP / DOWN( ▲ / ▼ ) key.
4. Set the initial setting value of NTSC 3.58 TINT with the function
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 +3V (W) and (W-Y).
7. Press the MENU / OK key and memorize the setting value
(NTSC 4.43 TINT)
1. When NTSC 3.58 is set, NTSC 4.43 will be automatically set at
the respective values.
1. Receive a PAL full field colour bar signal (75% white) from EXT
terminal.
2. Select 2. V / C from the SERVICE MENU.
0. Then Select 10. VCO adjustment with the function UP / DOWN
( ▲ / ▼ ) key.
4. Press the MENU / OK key.
When the MENU / OK key is pressed, VCO for colour decoder
*
will be automatically set at the respective values.
HV-53PRO
39