Glossary, Memory backup, Bias calibration – Sony TC-KA3ES User Manual

Page 17: Output, Level, Dolby hx pro system, Dolby nr (noise reduction) system, Mpx filter, Recording equalizer calibration, Recording level calibration

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Additional Information

Glossary

AMS

Automatic Music Sensor. A function that locates the beginning

of a track by detecting a blank space of over 4 seconds between
tracks.

Memory Backup

Function for storing tape deck operating parameters after the

power is turned off. The memorized parameters are:

— linear counter and counter memory parameters

— MPX HLTER, Dolby HX PRO and MONITOR settings.

To reset parameters to their original factory settings, turn on

the tape deck while holding down both RESET and O REC
MUTE.

ATS

Automatic Tape Selection. The tape deck automatically sets the
appropriate equalization characteristics and bias current

according to the tape type inserted in the deck.

Bias calibration

Adjustment for optimum recording. You can get better
recording results with minimum distortion and flat frequency

response by adjusting the bias current to the appropriate level.

Lowering the bias current can boost high-frequency response,

but also cause higher distortion. On the other hand, raising the

bias current can minimize distortion, but also reduce high-

frequency response. To balance both the bias current and high-

frequency response, it is necessary to adjust the bias current

appropriately.

However, to suit your taste, you can also adjust the bias current
as you want.

Output

level

Dolby HX PRO system

Distortion and noise reduction system. The Dolby HX PRO

system reduces distortion and noise in high-frequency

response while recording. A tape recorded with this system

brings the same high-quality sound even when you play the

tape on the other tape decks..

Dolby NR (noise reduction) system

Noise reduction system for eliminating hissing noise. The

Dolby NR system boosts the low-level signals in high

frequency during recording and restores them during

playback.

There are 4 types in the Dolby NR system: A, B, C and S.

A-type is for professional use (not available on this tape deck),

and B, C and S-types are for consumer use. S-type has the

maximum noise reduction capability, followed by C and B.

Dolby NR

MPX filter

Multiplex filter. A filter for eliminating the f 9-kHz stereo

carrier and the 38-kHz sub-carrier signals that may impair the
Dolby NR system. Usually the tuner has an MPX filter. If you

cannot get a satisfying result when recording FM broadcasts

with Dolby NR system, your tuner does not have a filter or the
filter is not working. In this case, set the MPX FILTER switch

on the tape deck to ON.

Recording equalizer calibration

Adjustment for optimum recording. Use the REC EQ control

to adjust the equalizer to suit your taste. Turning the control

clockwise emphasizes the high and middle frequencies;

turning the control counterclockwise reduces the high and
middle frequencies.

dB

Output

level

Hz

Recording level calibration

Adjustment for optimum recording. Even when you have

adjusted the recording level correctly, the playing level might

turn out to be low depending on the tape used. By adjusting

the recording level calibration, you can compensate for the low

recording level. When you record on a tape with the Dolby NR

system, this function works more effectively.

dB

Output

level

Tape counter

A display element that shows the elapsed recording or playing

time as a digital readout. Since the counter is not a digital clock,

the displayed value will differ slightly from the actual elapsed

recording or playing time. The counter value also includes the
length of the leader tape.

Test tones

15-kHz, 3-kHz and 400-Hz signals produced by the tape deck

when you do the bias, recording equalizer and recording level

calibration.

17

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