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3. r Curve Adjustment
•
C board input signal level setting
2
1.
Using I
C bus encoder, set the NT-WIDE mode.
2.
Enter NT double speed (10 step) signal of bias 2.2V and
amplitude 1.8Vp-p to the CN5201 pins 1~3.
•
After adjusting the amplitude of 1.8V, adjust the
bias level of 2.2V.
Use TP5201,
TP5401 and TP5601
as reference GND
respectively.
•
R channel
1.
Connect oscilloscope to TP5203.
2.
DC power, apply 3.60±0.02V to TP5211.
3.
Adjust RV5203 so that 10 IRE ~ 20 IRE becomes
600±20mV.
Adjustment is no good when 0 IRE ~10 IRE voltage is below
100 mV.
4.
Confirm that forward 10 IRE ~ reverse 10 IRE voltage is
over 6.5V.
20 IRE
10 IRE
10 IRE~20 IRE : 600±20 mV
1.8 ± 0.02 Vp-p
100 IRE
$
10
IRE
4
GND
2.2 ± 0.02 V
Fig. 7
Fig. 8
•
G channel
1.
Connect oscilloscope to TP5403.
2.
DC power, apply 3.60±0.02V to TP5411.
3.
Adjust RV so that 10 IRE ~ 20 IRE becomes
700±20mV.
4.
Stop the voltage application to *TP5411.
10 IRE~20 IRE : 700±20 mV
– 39 –
KL-W7000A/W9000A
20 IRE
10 IRE
Fig. 9
RM-Y980
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