Sony ECM-957PRO Service Manual

SERVICE MANUAL
Ver. 1.0 2008.01
SPECIFICATIONS
General
Type One-point stereo (employing the Mid-side stereo
system), electret condenser microphone
Microphone cord 4mm diameter, two core-shielded OFC (Oxygen-free
copper) cord with Canon XLR-5-12C type connector
and gold plated L-shaped stereo miniplug
1
Stand screw PF / screw
2
Approx. 40 × 183mm (diameter × length) (1
Dimensions
in.), projecting parts and controls not included.
Mass Approx. 330 g (11.7 oz.) including battery and cord
Supplied accessories Wind screen (1)
Microphone holder (PF
Microphone stand (1)
Carrying case (1)
Performance
Frequency respone 50 – 18,000 Hz
Unidirectional × 2 (Directive angel: 90
Directivity
(switchable)
Output impedance 600 ohm ± 30% unbalanced
°)
Sensitivity (directive angle 120
Open circuit output voltage
Effective output level
Difference between L and R channel sensitivity: Less
than 3 dB
Power requirements Normal operating voltage: 1.5 V , R6 (Size AA)
battery
Minimum operating voltage: 1.1V , R6 (Size AA)
battery
Battery life: Approx. 200 hours with Sony R6P (SR)
battery
Maximum sound pressure level input
More than 120 dB
Dynamic range More than 95 dB
Operating temperature range
°C – 40°C (32°F – 104°F)
0
∗1 0 dB = 1 v / Pa, 1,000 Hz (1 Pa = 10 μbar = 94 dB
∗2 0 dBm = 1 mW / Pa, 1,000 Hz
∗3 1% wave distortion at 1,000 Hz. (0 dB
Design and specifi cations are subject to change without notice.
Sony Corporation
9-887-969-01
2008A04-1 Audio Business Group
© 2008.01 Published by Sony Techno Create Corporation
ECM-957PRO
× 7
5 1
/ /
8
1
/ screw) (1)
2
° or 120°)
∗ 1
: –37
± 3 dB
∗ 2
: –40.8
± 3 dBm
∗ 3
SPL
)
SPL
= 2 × 10
3
Pa)
SPL
This microphone is suitable for use in a variety of situations such as at
concerts or conferences with digital recording equipment (Sony DAT, MD,
NT (Digital Microcorder) ICD, etc.).
• The turning capsule function allows both vertical and horizontal
sound pick-up.
• The Mid-Side Stereo System provides a natural sound pick up,
delivering a stereo sound image with superb clarity.
4
• The directive angle (between left and right channels) can be set
to ° or 120° according to the sound source.
90
Notes on chip component replacement
• Never reuse a disconnected chip component.
• Notice that the minus side of a tantalum capacitor may be dam-
aged by heat.
ELECTRET CONDENSER
STEREO MICROPHONE
US Model
Canadian Model
FEATURES