Sony DR-100 Service Manual

DR-100

SERVICE MANUAL

Ver 1.1 2001. 12

SPECIFICATIONS

Microphone

Type Dynamic microphone
Frequency response 400 – 7,000 Hz

150 – 7,000 Hz (at close-talking)
Directivity Cardioid
Output impedance 600 ohms ±20 %
Output level Open circuit voltage: –85 dB (0.056 mV)

(0 dB=1 V/1 µbar at 1,000 Hz)

Effective output level: –68.8 dBm

(0 dBm=1 mW/10 µbar at 1,000 Hz)
Noise level Wind noise *1: Less than 55 dB SPL

Induction noise from external magnetic

field *2: Less than 10 dB SPL
*1 Wind noise is the value measured by applying a wind velocity of 2 m/sec (6.6 ft/

sec) from all directions to the microphone. The mean value is taken and converted
to the equivalent input sound level.
(0 dB=2 × 10–4 µbar)

*2 The external magnetic field induction noise is measured with the microphone

placed in an alternating magnetic field of 50 Hz, 1 milligauss. The maximum noise
value is taken and then converted to the equivalent input sound level.
(0 dB=2 × 10–4 µbar)

E Model

FEATURES

• This headset consists of a dynamic headphone and a dynamic

microphone which does not require any power supply.

• A microphone muting switch is equipped for intermittent use of

the microphone.

• A soft-touch, elliptical earpad fits the shape of any ear and

provides high-grade soundproofing.

• Water-resistant microphone.

• Flexible microphone boom for easy adjustment of the

microphone position.

Headphone

Type Closed-type, dynamic
Driver unit 30 mm dia., dome
Impedance 45 ohms at 1 kHz
Sensitivity 108 dB/mV
Rated power 100 mW
Power handling capacity 500 mW
Frequency response 20 – 7,000 Hz

General

Cord length 1.5 m (4.9 feet) long
Plug mini intercom plug (4 poles)
Weight Approx. 105 g (3.7 oz)

9-966-761-02

2001L0400-1
© 2001.12

incl. cord

Sony Corporation

Personal Audio Company

Published by Sony Engineering Corporation

VIDEO ACCESSORY HEAD SET

1

DR-100

1. WIRING DIAGRAM

2