Philips 21PV548/07 - Manual (Page 19)

Eliminating picture interference (tracking)
If the picture quality is poor during playback, you can manually
adjust the tracking.
a Press and hold the button ;P q or =P r during
playback until the playback quality reaches its best.
’T+’ will appear on the screen when the button
;P q is
pressed. ’T-’ will appear when you press the button
=P r .
This setting will remain until the cassette is removed.
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