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1. Play-back signal is input to sync. detector and pilot detector via head Amp.
ie fiter detectors signals f2 and f3 and, output them to CPU B as signal PBS.
Pilot filter detects signal f1, and output it to CPU B as signal PBP.
2. The pilot filter output is detected and is provided to ATF S/H circuit.
Tape direction
LS
WWE
Crossisng f1 signals
ES
Tracing f1 signals
Signals after detecting
Track on the tape
8. Crossing f1 signals are sampled and their voltage levels are compared by the ATF S/H circuit.
Capstan and reel servo circuit controls the rotation frequency of the capstan motor so that the head
traces the tracks correctly.
SS
NG
OK
NG
338
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