Bedienungsanleitung Onkyo TA-RW255 (Seite 14 von 16) (Englisch)

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Cassette deck main-

tenance

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/playback

head or playback head. Be sure to clean the head periodically,

normally 2 - 3 times a month, to maintain your deck’s original

performance. Dirty heads may cause:

• Poor sound quality (lose 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 intro-

duces noise and static into tapes and impairs high frequency

response. To prevent this, demagnetize the heads with any com-

mercially available head eraser once every 50 hours of use.

Refer to the instruction manual of the head eraser for detailed

instructions.

Speciﬁcations

Format:

Auto reverse double deck

Track format:

4-tracks, 2-channels

Recording system:

AC bias

Erasing system:

AC erase

Tape speed:

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

Wow and ﬂutter:

0.13 % (WRMS)

Frequency response:

Metal position tape 30 Hz to 15 kHz ±3 dB

High position tape 30 Hz to 14 kHz ±3 dB

Normal position tape

30 Hz to 13 kHz ±3 dB

Signal to noise ratio:

56 dB (metal position tape/Type IV,

Dolby NR off)

55 dB (high position/Type II, Dolby NR

off)

50 dB (normal position/Type I, Dolby

NR off)

Noise reduction of 10 dB above 5 kHz

and 5 dB at 1 kHz possible with Dolby B.

Noise reduction of 20 dB at 5 kHz possi-

ble with Dolby C.

Input Jacks:

LINE IN: 2

Input sensitivity: 80 mV

Input impedance: 50 k

Ω

Output Jacks:

LINE OUT: 2

Standard output level:

500 mV

Output load impedance:

over 50 k

Ω

Motors:

DC servo motor: 1+1

Heads:

PB Head: Special Hard Permalloy

Rec/PB Head: Special Hard Permalloy

Erase head: Ferrite

Power supply rating:

North American: AC 120 V, 60 Hz

European: AC 230–240 V, 50 Hz

Power consumption:

17 W

Standby power consumption:

North American: 7.0 W

European: 0.6 W

Dimensions: (W x H x D):

435 mm x 121 mm x 303 mm

(17-1/8"

4-3/4"

11-15/16")

Weight:

4.9 kg (10.8 lbs.)

Operation condition temperature/humidity:

5˚C–35˚C/5%–85% (no condensation)

Speciﬁcations and external appearance are subject to change

without notice because of product improvements.

Erase head

(DECK B only)

REC/PB head

Capstans

Pinch rollers

TA-RW255_En.book Page 14 Tuesday, April 19, 2005 4:36 PM

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Onkyo TA-RW255 Seite 14

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