Sony ECM-56-P Service manual

SPECIFICATIONS

GENERAL

Microphone Cable:

Mounting Thread:

Environmental Temperatures:

Capsule:

Amplifier:

Power Supply:

Dimensions:

Weight:

Finish:

Recommended Optional

PERFORMANCES

Frequency Response:

Maximum Sound Pressure

Accessory:

Directivity:

Output Impedance:

Output Level:

Input Level:

Dynamic Range:

Electret condenser capsule
Sony junction FET

Battery operation with
Manganese EVEREADY 216
Mercury EVEREADY E146

External power operation facility

5.2mm (7/32") dia., 2-conductor
shielded cable, 6m (20ft), free­end

PF1/2 -14 thread

50 mm max. dia. x 207 mm
(2" max. dia. x 81/4")

500g (1 Ib 1 oz) microphone only
Non-reflective satin nickel finish

-20°C to 60°C (-4°F to 140°F)
for storage
0°C to 60°C (32°F to 140°F) for

operation

External power supply AC-148F

20 Hz -20,000 Hz
Uni-directional

250 ohm ±20% at 1,000 Hz,
balanced

Effective output level -53.8 dBm
(0dBm = 1 mW/10ju bar, 1,000 Hz)
Open circuit voltage 0.2mV/u bar,
at 1,000 Hz

Output level diviation ±2dB
Recommended load impedance is
more than 3

Approx. 134dB SPL
Approx. 106dB

NOISE LEVEL Signal-

to-noise Ratio:
Inherent Noise:

Wind Noise *1:

Induction Noise From

External Magnetic

POWER REQUIREMENTS

Normal Operating Voltage:

Minimum Operating

Field *2:

Battery Life:

Voltage:

Current Drain:

More than 46 dB (1,000 Hz, 1 jubar)

Less than 28 dB SPL (0 dB SPL =

-4

2x 10

ubar) Less than 40dB SPL

Less than 5 dB SPL/m gauss

*1 Wind noise is the value measured by
applying a wind velocity of 6.6ft/second from all
directions on the microphone. The mean value is

obtained and converted to the equivalent
input sound level. 0dB = 2x10

*2 The external magnetic field

induction noise is measured by placing
the microphone in an alternating
magnetic field of 50 Hz, 1 m gauss. The
maximum noise value is measured and
then converted to the equivalent input
sound level. 0dB = 2x 10

9 V DC (battery operation)
24V-54V DC (external power operation)

7 V DC
Less than 1 mA (with battery)

Less than 3.5 mA

Approx 400 hours with EVEREADY 216
(manganese)
Approx. 600 hours with EVEREADY
E146 (mercury)

(with external power supply)

-4

-4

ubar

ubar

SONY.