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1. Focus offset adjustment
©@ Objective
Sets the DC offset for the focus error amp to 0 V.
© Symptom when out | The player does not focus in and the RF signal is dirty.
of adjustment
© Measurement instru- | Connect the oscilloscope to TP1, Pin |@ Player state
Test mode, stopped
ment connections
6 (FCS ERR).
(just the Power switch on)
[Settings]
5 mV/division
© Adjustment location | VR103 (FCS OFS)
10 ms/division
DC mode
[Procedure]
Adjust VR103 (FCS OFS) so that the DC voltage at TP1, Pin 6 (FCS ERR) is 0+50 mV.
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