Parts Arrangement Diagram For Adjustments - Sony SLV-ED1ME Service Manual

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Table Of Contents

Table of Contents

4. Overall Level Characteristic and Distortion Factor

Check

Purpose:

Check the record level, play level, and distortion factor against the

reference input.

Mode

REC and PB (SP mode)

Signal

400 Hz, –7.5 dBs

Measurement point

Audio output terminal

Measurement equipment

Audio level meter and

distortion factor meter

Specified value

Playback level: –7.5 ± 2 dBs

Distortion factor: 4% or less

Confirmation Method:

1) Supply an audio signal of 400 Hz, –7.5 dBs simultaneously to

both L and R channels of Audio Line Input.

2) Make recording

3) Play back a recorded portion.

4) Confirm that a playback level is –7.5 ± 2 dBs.

5) Confirm that a distortion factor is within 4%.

5. Overall S/N Check

Purpose:

Confirm that the S/N is within the specification.

Mode

REC and PB (SP mode)

Signal

Short

Measurement point

Audio output terminal

Measurement equipment

Audio noise meter

Specified value

–46.0 dBs or less

Confirmation Method:

1) Connect both L and R channels of audio line input to the GND.

2) Start recording.

3) Play the recorded part to confirm that the noise is below –46.0

dBs.

7-5

2-5.