Sony MZ-R37 18, Low Reflection Cd Traverse Adjustment, Connection, Traverse waveform

LOW REFLECTION CD TRAVERSE ADJUSTMENT		CD TRAVERSE ADJUSTMENT
Connection :		Connection :
	oscilloscope		oscilloscope
MAIN board		MAIN board
SP526 (TE)		SP526 (TE)
AP503 (VC)		AP503 (VC)

Adjustment Method :

1.Set the servo mode of the test mode (Mode : 000).

2.Press the ( key, and set the low reflection CD test adjustment mode (Mode : 040) using the VOLUME + or – key.

3.Insert any MO disk available on the market.

4.When the ( key is pressed, the low reflection CD EF balance adjustment mode (Mode : 042) will be set after low reflection CD focus search adjustment mode (Mode : 041).

5.Press the P key to perform automatic adjustment, and check that the traverse waveform is symmetrical at the top and bottom.

(Traverse waveform)

A

0 V C

B

Specification : A = B, C >= 0.9 Vp-p

6.Check that the traverse level at this time is above 0.9 Vp-p.

7.Press the pkey.

8.Exit the test mode.

Adjustment Location : See page 19.

Adjustment Method :

1.Set the servo mode of the test mode (Mode : 000).

2.Press the ( key, and set the CD test adjustment mode (Mode : 050) using the VOLUME + or – key.

3.Press the =or + key and move the optical pick-up to the center circumference.

4.Insert a test CD (TDYS-1).

5.When the ( key is pressed, the CD EF balance adjustment mode (Mode : 052) will be set after CD focus search adjustment mode (Mode : 051).

6.Press the P key to perform automatic adjustment, and check that the traverse waveform is symmetrical at the top and bottom.

(Traverse waveform)

A

0 V C

B

Specification : A = B, C >= 1.0 Vp-p

7.Check that the traverse level at this time is above 1.0 Vp-p.

8.Press the pkey.

9.Exit the test mode.

Adjustment Location : See page 19.

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