Sony KL-W9000 - Manual (Page 31)

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KL-W7000/W9000
RM-Y980
Adjustment Items and Procedure Tools and Test Points Adjustment Places Illustration Waveforms and Values
Signals
* A : 1.35
±
0.02Vp-p
* B : 6.10
±
0.02Vp-p
* A : 1.35
±
0.02Vp-p
* B : 5.70
±
0.02Vp-p
*I 2 C bus encoder
*
2. IC Level Adjustment
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 ampli-
tude 1.8Vp-p to the CN5201 pins 2~4.
* RV5403 [G. BIAS]
* DC power
* Oscilloscope
* TP5211 [RLBS]
TP5207 is ref. GND
* TP5203 [R-SIG2]
* TP5203 [R-SIG2] * RV5205 [R. GAIN]
* RV5201 [R. BIAS]
* TP5202 [R-SIG1]
* TP5204 [R-SIG3]
* TP5203 [R-SIG2]
* RV5407 [G. GAIN]
* TP5403 [G-SIG2]
* DC power
* Oscilloscope
* TP5403 [G-SIG2]
* TP5402 [G-SIG1]
* TP5404 [G-SIG3]
* TP5403 [G-SIG2]
1) R channel
1. Using *DC power, apply 0V to *TP5211.
2. Connect *oscilloscope to *TP5203, and adjust *RV5205 so
that 10 IRE ~ 100 IRE (A) becomes *1.35
±
0.02Vp-p.
3. Adjust *RV5201 so that the forward 10 IRE ~ reverse 10 IRE
(B) becomes *5.70
±
0.02Vp-p at *TP5203.
4. Confirm that a difference in voltage amplitude of forward 10
IRE ~ 100 IRE and forward 10 IRE ~ reverse 10 IRE between
waveform at *TP5202,*TP5204 and waveform at *TP5203 is
within
±
150mV.
2) G channel
1. Using *DC power, apply 0V to *TP5411.
2. Connect *oscilloscope to *TP5403, and adjust *RV5407 so
that 10 IRE ~ 100 IRE (A) becomes *1.35
±
0.02Vp-p.
3. Adjust *RV5403 so that the forward 10 IRE ~ reverse 10 IRE
(B) becomes *6.10
±
0.02Vp-p at *TP5403.
4. Confirm that a difference in voltage amplitude of forward 10
IRE ~100 IRE and forward 10 IRE~ reverse 10 IRE between
waveform at *TP5602, *5604 and waveform at *TP5603 is
within
±
150mV.
* TP5411 [GLBS]
TP5407 is ref. GND
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
10
A
B 100 IRE
IRE
10 IRE
10
A
B
100 IRE
IRE
10 IRE