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Cassettes are available in several types, each with varying magnetic properties. In
addition to the Automatic Tape Selection (ATS) system which sets the appropriate
equalization characteristics, bias current and recording level for each tape type, the
automatic calibration function can be used to obtain more optimum recording
conditions for your tape, especially ir in 1 conjunction with ue oohy NR system.
1 Press AUTO CAL.
The CAL indicator on the display panel lights up,
CAL appears on the counter and the unit enters
recording pause mode.
AUTO CAL
=>
=
ow mon
CAL
2 Press B> or <i to select the side to be
recorded.
To select the front side, press B> .
To select the reverse side, press ~<a .
See "If the cassette is record protected" on this
page.
3 Press 81.
The unit fastwinds a short distance, the counter
begins counting down from 9 to 0 and the unit
performs recording, rewinding and playback as
part of the calibration process.
Ly} >
PAUSE
After automatic calibration is completed, the tape
rewinds to the original position, the counter
returns to normal and the unit enters stop mode.
4 Continue with step 3 on page 12 to record a
source.
To cancel the automatic calibration function
Press the @ button.
Notes on recalibration
As long as the unit remains on, all generated calibration data
are saved and applied by the system whenever a cassette of
the same type (I, Il or [V) is inserted.
The CAL indicator lights up when previous calibration data
are being applied. However, since cassettes of the same
type also vary in their characteristics, recalibration is
recommended each time a new cassette is inserted.
To recalibrate:
1 Insert the new cassette for recording.
The CAL indicator lights up.
2 Press AUTO CAL.
The CAL indicator goes off and the previous calibration
data for that tape type are temporarily restored.
3 Continue from step 1 of the automatic calibration
procedure.
Notes
¢ Since a test tone is recorded on the tape during automatic
calibration, previously recorded material is erased where
the test tone is recorded.
* Relatively new tape and clean heads are recommended for
best calibration results. Excessively worn tape or dirty
heads may result in incorrect calibration values.
¢ All calibration data saved in the system are lost when the
unit is turned off.
¢ The automatic calibration function works only when both
decks are stopped.
Playback on deck A is disabled during automatic calibration
on deck B.
¢ It is unnecessary to select the Dolby NR system when
performing automatic calibration since the calibration
results are the same regardless of the Dolby NR system.
The CAL indicator flashes continuously
The automatic calibration process has been interrupted by:
— The end of the tape. Reverse the tape direction or
fastwind 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.
If the cassette is record protected
+ If both tabs have been removed (see page 14), the CAL
indicator flashes three times and automatic calibration
cannot be performed.
¢ If only the current side is protected, the direction indicator
for the other side flashes and calibration is possible only in
that direction.
¢ If an attempt is made to change from an unprotected to a
protected side in step 2, the unit will not respond and
automatic calibration is possible only in the current
direction.
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15
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