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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
Output Jacks:
LINE OUT: 2
Standard output level:
500 mV
Output load impedance:
over 50 k
Motors:
DC servo motor: 1+1
Heads:
PB Head: Special Hard Permalloy
×
1
Rec/PB Head: Special Hard Permalloy
×
1
Erase head: Ferrite
×
1
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
14


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