Cassette deck maintenance, Specifications – Onkyo TA-6711 User Manual

Page 16

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SN29342245

Sales & Product Planning Div. : 2-1, Nisshin-cho, Neyagawa-shi, OSAKA 572, JAPAN
Tel: 0720-31-8111 Fax: 0720-33-5222
ONKYO U.S.A. CORPORATION

200 Williams Drive, Ramsey, N.J. 07446, U.S.A.
Tel: 201-825-7950 Fax: 201-825-8150
ONKYO EUROPE ELECTRONICS GmbH

Industriestrasse 18-20, 82110 Germering, GERMANY
Tel: 089 84 93 20 Fax: 089 84 93 226
ONKYO FRANCE

Immeuble Le Diamant, Domaine Technologique de Saclay, 4 Rue René Razel,
91892 SACLAY, FRANCE Tel: (1) 69 33 14 00 Fax: (1) 69 41 35 84

Track Format:

4-tracks, 2-channels

Erasing System:

AC erase

Tape Speed:

4.8 cm/sec. (1-7/8 i.p.s.)

Wow and Flutter:

0.045% (WRMS)
0.09% (DIN)

Frequency Response:

20—18,000Hz (normal)
(30—17,000Hz

±

3dB)

20—19,000Hz (high)
(30—18,000Hz

±

3dB)

20—20,000Hz (metal)
(30—19,000Hz

±

3dB)

S/N Ratio:

60dB (metal tape, Dolby NR off)
A noise reduction of 10dB above
5kHz and 5dB at 1kHz is possible
with Dolby B NR. A noise reduction
of 20dB at 5kHz is possible with
Dolby C NR.

Input Jacks:

LINE IN: 2

Input sensitivity: 80 mV
Input impedance: 40 kohms

MIC IN: 2

Input sensitivity: 5 mV
Input impedance: 50 kohms

Output Jacks:

LINE OUT: 2

Standard output level: 500 mV
(0dB)
Optimum load impedance: over
50 kohms

Motors:

DC servo motor: 1
DC motor: 2

Heads:

REC/PB: Special Hard Permalloy x 1
Erase head: Sendust x 1

Power Supply Rating:

U.S.A and Canadian models:

AC 120 V 60 Hz

European models:

AC 230 V, 50Hz

Worldwide models:

AC 120 and 220-230 V,
Switchable 50/60 Hz

Power Consumption:

16 watts

Dimensions:

435(W) x 131(H) x 370(D)mm
17-1/18" x 5-3/16" x 14-9/16"

Weight:

7.2 kg. (15.9 lbs.)

Specifications and external appearance are subject to change
without notice because of product improvements.

Cassette Deck
Maintenance

This deck requires no lubrication.

Head, Pinch Roller and Capstan Cleaning

Playback sound quality can be greatly diminished if magnetic
particles are allowed to accumulate on the recording or playback
heads. Be sure to clean the heads periodically, normally 2 or 3
times a month, to maintain your deck's original performance.
Dirty heads will cause:

• Poor sound quality (loss of high frequency response)
• Decreased volume
• Skipping
• Incomplete erasure of previous recordings

If the pinch rollers and capstan are dirty, the tape may become
tangled and damaged by wrapping around the pinch roller and
capstan.
To prevent these problems, clean the heads, pinch rollers and
capstans with a cotton swab dipped in cleaning fluid.

Demagnetizing

Residual magnetism builds up in the heads after the cassette deck
has been used for an extended period of time. This buildup
introduces noise and static into tapes and impairs high frequency
response. To prevent this, demagnetize the heads and the other
metal parts in the area (like the capstan shafts) once every 50
hours of use. Keep the deck power off while using the demagnet-
izer. Also place tapes far away from the work area.

Specifications

Printed in Japan

Erase head

Recording and
playback head

Capstan

Pinch roller

Capstan

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