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14
5. RF level adjustment
© Objective
To optimize the playback RF signal amplitude
Symptom when out | No play or no search
of adjustment
© Measurement instru- | Connect the oscilloscope to TP1, Pin ;@ Player state
ment Connections
1 (RP).
Test mode, play
[Settings]
50 mV/division
© Adjustment location | VR1 (laser power)
10 ms/division
AC mode
[Procedure]
1.
Move the pickup to midway across the disc (R = 35 mm) with the MANUAL SEARCH FWD p> or « key, then
press the TRACK FWD i key, then the PLAY
[> key in that order to close the respective servos and put the player
into play mode.
Adjust VR1 (laser power) so that the RF signal amplitude is 1.2 Vp-p +0.1 V.
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