Filter
Top Products
– 33 –
KL-W7000/W9000
RM-Y980
Adjustment Items and Procedure Tools and Test Points Adjustment Places Illustration Waveforms and Values
Signals
3. r Curve Adjustment
• C board input signal level setting
1. Using *I
2
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.
• 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.
• 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.
*I
2
C bus encoder
*
* TP5403 [R-SIG2]
* TP5411 [GLBS]
* Oscilloscope
* DC power
*RV5403 [RL. GAIN]
* 10 IRE~20 IRE : 600±20 mV
* 10 IRE~20 IRE : 600±20 mV
* TP5203 [R-SIG2]
* TP5211 [RLBS]
* TP5207 is Ref. GND
*TP5411 [GLBS] *RV5405 [GL.GAIN]
Use TP5201,
TP5401 and TP5601
as reference GND
respectively.
10
GND
IRE
100 IRE
$
4
2.0 ± 0.02 Vp-p
2.7 ± 0.02 V
20 IRE
10 IRE
20 IRE
10 IRE