Sony TC-KE400S - Manual (Page 9)

Adjusting Bias and Recording
Level Calibration
Automatically
(unavailable on the TC-KE200)
Since there are many different types of cassettes on the
market, your tape deck automatically sets the
appropriate equalization characteristics and bias
current for each tape type (ATS: Automatic Tape
Selection). However, you can get better recording
results by doing the automatic bias current and the
recording level calibration.
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1 insert the cassette you want to record on.
Make sure the record-protect tabs on the cassette
have not been removed.
2 Press AUTO CAL until "CAL" appears in the
display.
Note
If the record-protect tab for that size has been removed
(see page 11), "AUTO CAL" in the display flashes three
times and automatic calibration cannot be performed.
3 Press II PAUSE to start the automatic calibration
procedure.
The automatic calibration procedure starts (i.e.,
recording test tones, rewinding, and playing
back).
During the calibration, the counter changes from
9 to 0.
4 Start the actual recording (see page 6).
To cancel the automatic calibration function
Press
If "AUTO CAL" flashes continuously
The automatic calibration procedure has been interrupted
by:
— The end of the tape. Turn the cassette over or rewind the
tape to a new position that allows recording of the test
tone.
— Damaged tape or dirty heads. Change the cassette or
clean and demagnetize the heads (see page 11).
Updating the calibration setting
As long as the tape deck stays on, calibration data are
saved and called up each time you insert a cassette of
the same type (I, II or IV). "AUTO CAL" appears in
the display when you insert a cassette to indicate that
calibration data for that tape type exists. However, we
recommend that you repeat the automatic calibraion
procedure each time you insert a new cassette since
cassettes of the same type also vary in their
characteristics. Before recalibrating, be sure to clear the
existing calibration data by pressing AUTO CAL until
"AUTO CAL" disappears from the display. Then start
from Step 2 of the automatic calibration procedure.
When the automatic calibration procedure ends,
the tape rewinds to the original position, the
counter returns to normal and the tape deck
stops.