Sony KL-W9000 service manual AV Memory

Models: KL-W9000

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Adjustment Items and Procedure

Tools and

Test Points

Adjustment Places Illustration Waveforms and Values

 

 

 

 

Signals

 

 

 

 

 

 

 

 

 

 

 

 

4.

Adjust *RV5404 so that the voltage at *TP5405 becomes

 

* TP5405 [G.VCOM * RV5404 [G.VCOM] * (Value in 3) – 0.50±0.02V

 

 

*(Value in 3) –0.50±0.02V.

 

OUT]

 

 

 

5.

Measure voltage at the *TP5603 with digital voltmeter.

* Voltmeter

* TP5603 [Bch OUT]

* (Value in 5) – 0.80±0.02V

6.

Adjust *RV5602 so that the voltage at *TP5605 becomes

 

* TP5605 [B-VCOM * RV5602[B.VCOM]

 

 

*(Value in 5) – 0.80±0.02V.

 

OUT]

100 IRE

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

A Board Adjustment

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

1.

Enter *1Vp-p 10-step signal from the Video1 input.

* NTSC 10-step signal

 

 

 

 

2.

Set the user control to the RESET of *AV MEMORY, *PIX to

 

 

* AV MEMORY

 

 

 

 

maximum, and H WHITE to OFF.

 

 

* RESET

 

 

3.

Connect *oscilloscope to *TP4002.

* Oscilloscope

* TP4002 [2G]

* H WHITE OFF

 

 

 

 

 

 

 

 

0 IRE

 

 

 

 

 

 

 

 

 

0 V

KL-W7000/W9000

RM-Y980

Page 35
Image 35
Sony KL-W9000 service manual AV Memory