Pioneer PD-Z84M Service Manual page 35

Multi-play compact disc player

Hide thumbs Also See for PD-Z84M:

Available languages

PD-Z8S4M,

PD-Z8S70M

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

Test mode, play

ment connections

{1 (RF).

[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 TRACK/MANUAL

SEARCH FWD D/P

KKK

key, then press the PGM key, then the PLAY > key in that order to close the respective servos and put

the player into play mode..

2. Adjust VR1 (laser power) so that the RF signal amplitude is 1.2 Vp-p+0.1 V.

Pd-z970m