Specifications, Tape, Recording system – Sony BM-577 EN User Manual
Page 6: Tape speed, Frequency response, Input, Power output, Battery life, Mass, Optional accessories
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Maintenance
To clean the tape heads and path
BM-575
Pinch-roller
Specifications
Record/playback head
Wipe the heads, pinch roller and the capstan with a cotton swab
moistened with alcohol every 10 hours of use.
To clean the exterior
Use soft cloth slightly moistened in water. Do not use alcohol,
benzine or thinner.
Tape
CMicRocAssETTsy" (normal position type)
Recording system
BM-577: 4-track 2-channel monaural
BM-575: 2-track 1-channel monaural
Speaker
Approx. 2,8 cm (I’/sin.) dia.
Tape speed
2.4 cm/s (’Vi6 ips), 1.2 cm/s (’Vizips)
Frequency response
BM-577: 250 to 4,000 Hz (at 2.4 cm/s)
BM-575: 300 to 3,500 Hz (at 2.4 cm/s)
Input
Microphone jack (minijack) sensitivity 0.2 mV for low impedance
microphone
Output
Earphone jack (minijack) for 8 - 300 ohms earphone
Power output
150 mW (at 10 % harmonic distortion)
Battery life
Continuous recording hours with the built-in microphone:
Approx. 9 hours (average) with alkaline batteries.
Approx. 2 hours with a rechargeable battery after charged for 5 hours.
Power requirements
3VDC
• Two size AAA (R03) batteries (not supplied)
• Sony BP-43 rechageable battery pack (not supplied)
DC IN 3 V jack accepts:
• Sony AC-E30HG AC power adaptor (not supplied) for use on 120 V
AC, 60 Hz
• Sony DCC-E130L car battery cord (not supplied) for use on 12 V car
battery.
Dimensions (w/h/d) (incl. projecting parts and controls)
Approx. 60
X
122x 23.4 mm (w/h/d)
(2
Vs
X
4 %
X
'yi6 in.)
Mass
Approx, 155 g (5,5 oz.)
Approx. 185 g (6.5 oz.) (inch batteries and cassette)
Supplied accessory
Carrying case (1) (BM-577 only)
Design and specifications are subject to change without notice.
Optional accessories
AC power adaptor AC-E30HG
Car battery cord DCC-E130L
Electret condenser microphone ECM-155, ECM-144
Message coupler TL-2
Telephone pickup TP-15
Telephone recording adaptor TL-4
Rechargeable battery pack BP-43
Cassette eraser BE-9H
Earphone ME-L82
Microcassette MC-60BM, MC-30BM
Your dealer may not handle some of the above listed optional accessories.
Please ask the dealer for detailed information about the optional accessories
available in your country.