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Making an Optimum
lat-rerelgellate
How to calibrate the bias
current and recording level
1 Insert the cassette to be used for
recording.
2 Press CALIBRATION.
The peak program meter for adjusting
the bias and recording level appears in
the display window.
3 Press @ , then IH or B to activate the
recording test tone.
a) Playback level for an 8-kHz signal
b) Playback level for a 400-Hz signal
Notes
CALIBRATION
d
* The sound cannot be monitored during
the calibration operation.
* It takes 2 to 3 seconds for the test tone
level to stabilize.
4 Adjust BIAS until both meters
ar
indicate equal playback levels.
ou
fo)
a) A high reading on the upper meter
ou
indicates a low bias current.
:
b) A low reading on the upper meter
indicates a high bias current.
c) An equal reading on both meters
'
-
indicates the optimum bias current
5 Adjust REC LEVEL CALIBRATION
until both meters reach the
recommended level.
a) Recommended level
b) The bias current is now adjusted to
the optimum level and the tape
sensitivity compensation has been
set. Press @, then press
CALIBRATION
to turn the calibration
function off. Rewind the tape and
start the actual recording.
REC LEVEL
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