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Sony KL-W9000 User Manual

Page 34

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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 : 8.30

±

0.02Vp-p

* B : 3.45

±

0.10Vp-p

*

10 IRE ~20IRE : F800 : 20mV

* Oscilloscope
* DC power

* TP5603 [B-SIG2]
* TP5411 [GLBS]

5.

Adjust *RV so that the forward 10 IRE ~ reverse 10 IRE (A) be-
comes *8.30

±

0.02Vp-p.

Adjustment is no good when 0 IRE ~ 10 IRE voltage is below
100mV.

6.

Confirm that forward 100 IRE ~ reverse 100 IRE (B) is
*3.45

±

0.10Vp-p.

* RV5402 [GL. BIAS]

* RV5603 [GL. GAIN]

B channel
1.

Connect *oscilloscope to *TP5603.

2.

*DC power, apply 3.60

±

0.02V to *TP5611.

3.

Adjust *RV so that 10 IRE ~ 20 IRE becomes *800

±

20mV.

Confirm that 0 IRE ~ 10 IRE voltage is over 7.1V.

10 IRE

10 IRE

100 IRE

10 IRE

B

A

20 IRE

10 IRE