CDX-805 - Sony Car Audio Service Manual (repair manual). Page 13

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Note:
1. Perform adjustments as given.
2. Be sure to use the disc “YEDS-18” parts code: 3-702-101-01,

but only when indicated.

3. Power supply voltage: DC14.4 V (more than 3A).

[RF  BOARD]  – Conductor Side –

[RF  BOARD]  – Conductor Side –

Procedure:
1. Connect the oscilloscope to RF board test point RF.
2. Put the set into play mode by loading the disc.
3. Confirm that oscilloscope waveform is clear and check RF sig-

nal level is correct or not.

Note:
Clear RF signal waveform means that the shape “≈” can be clearly
distinguished at the center of the waveform.

Procedure:
1. Connect the oscilloscope to RF board bridge point TE.
2. Put the set into play mode by loading the disc.
3. Press the 

= AMS + button, then, check the traverse wave-

form.

4. Confirm that the oscilloscope waveform is symmetrical on the

top and bottom in relation to 0 V dc, and check this level.
* Traverse waveform: This is the tracking error wave form ap-

pears when crossing the track.

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