Maintenance

Cleaning the tape heads and tape path

Wipe the heads, the pinch roller and the capstan with a cleaning swab slightly moistened with cleaning fluid or alcohol after every 10 hours of operation for optimum playback and recording quality. To make the best possible recording, however, we recommend that you clean all surfaces over which tape travels before each recording.

Pinch roller

Erase head

Record/playback head

Capstan

Cotton swab

After cleaning, insert a tape when the areas cleaned are completely dry.

Demagnetizing the tape heads

After 20 to 30 hours of use, enough residual magnetism will have built up on the tape heads to begin to cause loss of high frequency sound and hiss. At this time, you should demagnetize the heads and all metal parts in the tape path with a commercially available tape head demagnetizer.

Cleaning the cabinet

Clean the cabinet, panel and controls with a soft cloth slightly moistened with a mild detergent solution. Do not use any type of abrasive pad, scouring powder, or solvent, such as alcohol or benzine.

Specifications

AUDIO POWER SPECIFICATIONS

POWER OUTPUT AND TOTAL

HARMONIC DISTORTION:

With 4.0-ohm loads, from 125-8,000Hz; rated 2.1 W minimum RMS power,

with no more than 10% total harmonic distortion in AC operation.

Radio section

Frequency range

FM 87.6 - 108 MHz

AM 530 - 1,710 kHz

Aerials

FM: Telescopic aerial

AM: Built-in ferrite bar aerial

Cassette-corder section

Recording system

2-track 1 channel monaural Fast winding time

Approx. 120 s (sec.) with Sony cassette C-60 Frequency response

TYPE I (normal): 100- 8,000 Hz

General

Speaker

Full range: 9.2 cm dia., 4 ohms, cone type (1) Outputs

Earphone jack (minijack)

For 32 ohms impedance earphone Power requirements

120 V AC, 60 Hz

6 V DC, four R20 (size D) batteries Power consumption

AC 6 W

Battery life

FM recording

Sony R20P:

approx. 13 h

Sony alkaline LR20:

approx. 35 h

 

 

Tape playback

 

 

 

Sony R20P:

approx. 7 h

 

 

Sony alkaline LR20:

approx. 20 h

 

 

Dimensions

Approx. 289 ⋅ 200 ⋅ 123 mm (w/h/d) (11 12 ⋅ 7 78 ⋅ 4 78 inches) (incl. projecting parts)

Mass

Approx. 2.4 kg (5 lb. 5 oz) (incl. batteries) Supplied accessory

AC power cord (1) Earphone (1)

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Design and specifications are subject to change without

Additional Information

notice.

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Sony CFM-A50 operating instructions Maintenance, Specifications