Sony SLV-D100 Operating Instructions Manual page 83

Although the VCR automatically adjusts the tracking
when playing a tape, distortion may occur if the
recording is in poor condition. In this case, manually
adjust the tracking.
Press TRACKING +I- to display the tracking meter.
The distortion should disappear as you press one of
the two tracking buttons.
To resume automatic tracking adjustment, eject the
tape and reinsert it.
et@
0 The auto b-acking adjustment cannot be guaranteed to work with taps recorded in the LP
mode OR other VCRs.
Adjusting the picture (tracking) 83