Onkyo TA-RW244/144 - Manual (Page 14)

14
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
introduces noise and static into tapes and impairs high frequency
response. To prevent this, demagnetize the heads with any
commercially available head eraser once every 50 hours of use.
Refer to the instruction manual of the head eraser for detailed
instructions.
Specifications
Track Format: 4-track, 2-channels
Erasure System: AC erase
Tape Speed: 4.8 cm/sec. (1-7/8 i.p.s.)
9.6 cm/sec. (3-3/4 i.p.s.) (high-speed
dubbing)
Wow and Flutter: 0.08 % (WRMS)
Frequency Response: 20 — 15,000 Hz (Normal)
(30 — 14,000 Hz
±
3 dB)
20 — 16,000 Hz (High)
(30 — 15,000 Hz
±
0 dB)
20 — 17,000 Hz (Metal)
(30 — 16,000 Hz
±
0 dB)
S/N Ratio: Dolby NR off: 58 dB (metal position
tape)
A noise reduction of 10 dB above
5 kHz and 5 dB at 1 kHz is possible
with Dolby B NR.
A noise reduction of 20 dB at 5 kHz
is possible with Dolby C NR.
Input Jacks: Line IN: 2
Input sensitivity: 80 mV
Input impedance: 50 kohms
Outputs: Line OUT: 2
Standard output level: 500 mV
(0 dB)
Optimum load impedance: over
50 kohms
Motors: DC servo motor
×
2
Heads: REC/PB: 1
PB: 1
ERASE: 1
Power Supply: TA-RW144:
AC 120 V, 60 Hz
TA-RW244:
AC 230 V, 50 Hz
AC 120 V and 220-230 V,
Switchable 50/60 Hz
(Worldwide model)
Power Consumption: 17 watts
Dimensions: 455(W)
×
120(H)
×
305(D) mm
(17-15/16"
Ч
4-3/4"
Ч
12")
Weight: 5.2 kg. (11.5 lbs.)
Specifications and external appearance are subject to change
without notice because of product improvements.
Pinch rollers
Erase head
(DECK B only)
REC/PB head
Capstans