Panasonic RS-TR252 - Manual (Page 15)

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Head care
To assure sound quality for recording and playback, be sure to
clean the heads after approximately every 10 hours of use.
1} Press the power switch to switch to the standby condition.
2) Press the eject button to open the cassette holder.
3) Clean the heads, pinch roller and the capstan shaft with a cot­
ton swab {or with a soft, tint-free cloth) slightly moistened with
isopropyl alcohol.
Do not use any solution other than alcohol for head cleaning.
Head demagnetization
in order to maintain good sound quality during recording and
playback, it is recommended that the head assembly be
demagnetized if distortion or poor sound quality persists after
cleaning the heads.
If the head assembly becomes magnetized, it could create noise
in the recordings, ioss of high-frequency response or erasure of
valuable recordings.
Several types of head demagnetlzers are available and may be
purchased separately at local electronics supply stores.
Follow the instructions that are supplied with the device.
Do not bring any type of metal objects or tools such as magnetic
screwdrivers in contact with the head assembly.
Maintenance of external surfaces
To clean this unit, use a soft, dry cloth.
If the surfaces are extremely dirty, use a soft cloth, dipped into a
soap-and-water solution or a weak detergent solution.
Wring the cloth well before wiping the unit.
Wipe once again with a soft, dry cloth.
Never use alcohol, paint thinner, benzine, nor a chemically
treated cloth to clean this unit.
Such chemicals may damage the finish of your unit.
■ CASSETTE DECK SECTION
Deck system
Track system
Recording system
Bias frequency
Erasing system
Heads
DECK 1
DECK 2
Stereo cassette deck
4-track, 2*channel
AC bias
80 kHz
AC erase
Playback head (Permalloy) x 1
Recordtng/Playback head (Permalloy) x i
Erasing head (Double-gap ferrite) x i
Motors
DECK 1 Capstan/Reel table drive (DC servo motor) x i
DECK 2 Capstan/Reel table drive (DC servo motor) x i
Tape speed 4.8 cm/s, (1-7/8 ips)
Wow and flutter 0.14% (WRMS)
Fast forward and rewind times
Approx. 110 seconds with C-60 cassette tape
Frequency response (Dolby NR off)
NORMAL 40 Hz-15 kHz, ±3 dB
20 Hz-16 kHz (DIN)
CrOa 40 Hz-15 kHz, ±3 dB
20 Hz-16 kHz (DIN)
METAL 40 Hz-16 kHz, ±3 dB
20 Hz-17 kHz (DIN)
S/N (Signal level = max recording level, CrOa type tape)
NR off 56 dB (A weighted)
Dolby B NR on 66 dB (A weighted)
Dolby C NR on 74 dB (A weighted)
Input sensitivity and Impedance
REC (IN) 60 mV/47 kO
Output voltage and Impedance
PLAY (OUT) 400 mV/800 Q
■ GENERAL
Power consumption
For Australia and N.Z. 20 W
For others 22 W
Power supply
For Australia and N.Z. AC 50 Hz/60 Hz, 230-240 V
For others AC 50 Hz/60 Hz, 110 V/127 V/220 V/230-240 V
Dimensions (W x H x D) 430 x 136 x 290 mm
Weight 4.7 kg
Note:
Specifications are subject to change without notice.
Weight and dimensions are approximate.
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