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AV-27D201
AV-32D201
Measuring
Item
instrument
DEMODULA-
Remote
TION RATIO
control unit
adjustment
Signal
generator
Oscilloscope
Remote
control unit
Y
W
Cy
26
Test point
Adjustment part
No.31 DEMO RT BY
TP-B
No.31 DEMO RT BY
TP-E(# # # # )
[CRT
SOCKET
PWB]
G
R
(C)
(
)
0V
B
Mg
[ Method of adjustment without measuring instrument ]
1.
Receive the broadcast.
2.
Select No.31 DEMO RT BY of the PICTURE MODE.
3.
Set the initial setting value of the No.31 DEMO RT BY with
the LEFT/RIGHT key of the MENU.
4.
If the blue color gain against the red color is not the best with
the initial setting value, make fine adjustment of the No.31
DEMO RT BY until you get the optimum gain.
"
DEMODULATION RATIO is the adjustment of the blue color
demodulation gain against the red color.
[ Method of adjustment using measuring instrument ]
1.
Input the full field color bar signal (75% white).
2.
Select No.31 DEMO RT BY of the PICTURE MODE.
3.
Set the initial setting value of the No.31 DEMO RT BY with
the LEFT/RIGHT key of the MENU.
4.
Connect the oscilloscope between TP-B and TP-E .
5.
Adjust DEMODURATION RATIO and bring the value
(C)
of
in the illustration to the voltage shown in the table
bellow ( V w-
).
B
AV-27D201
AV-32D201 / A
No. 51686
Description
Voltage between W-B
+14V
+18V
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