Sony ecm ms 957 service manual

Page 1

ECM-M8957

SERVICE MANUAL

US Model
Canadian Model
AEP Model

E Model

SPECIFICATIONS

General
Type 0ne~point stereo (employing the Mid»side stereo system),
electret condenser microphone
4 mm diameter, two core-shielded (ti (Oxygemlrec copper)
cord with Canon XLRrSvIZC lype connector and gold plated
L-shaped stereo nnniplug
PF 1/2 screw
Approx 40 x 183 mm (diameter x length) (1 Six x 7 n4 tn ),
projecling parts and controls not inciutied
Muss Approx. 330 g (1 1V7 oz) including buttery and cord
Supplied accessories Wind screen ( It

Mi 'oplionc holder (PF ll: screw) (1)

Mi *ophone stand (1)

Microphone cord

Stand screw
Dimensions

Carrying cm <1)
Performance

Frequency response 50 - 18,000 Hz

Directivity Unidirectional x 2 (Directive angle190° or 120) (switchable)

Output impedance 600 Ohm : 30% unbalanced
Sensitivity (directive angle 120°)
Open circuit output voltage " : -42 1 3 dB
Effective output level '7 : 45.8 2 3 dBm
Difference between L and R channel sensitivity ; Less than
3 dB
Normal operdling vollagc: 1.5 v. R6 (Sl7c AA)ba1tery
Minimum operating voltage : 11 V, Re (size AA) battery
Battery rite : Approx 2,000 hours With Sony R6? (SR) battery
Maxrntum sound pressure Icvcl input "

More than [15 dBSIL
Dynamic range More than 90 dB
Operating temperature range

WC - 40C (32°F- MVP)

Power requirements

*1 OdB =1 v/Pa, LOOOHZU Pa = lOubar = 94 dBSPL)
*2 OdBm = l mW/Pa, [.000 Hz
3 l% wave distortion at 1,000 Hz (0 45521 = 2 x10 Pa)

Detign and specifications are subject lo change Without notice.

MICROFILM

FEATURES

This microphone is suitable for use in a variety of silualions such as at concerts or

conferences with digital iecoldingequipmcnl (Sony DAT. MD. NT (Digital Mrcrocorder).

etc).

~ The turning capsule function allows both vertical and horizontal sound pick-up

~ The Mid-Side Stereo System provides a natural sound pick-upu delivering a stem
sound image wilh supcth clarity.

The directive angle (between [cit and right channels) can be set to 90" or 120"
according to the sound source.

Notes on Chip Component Replacement

0 Never reuse is disconnected chip component,

0 Notice that the minus side of a tantalum capacitor may he dam-
aged by heat.

ELECTRET CONDENSER
STEREO MICROPHONE

SONY;

Page 2

SECTION 1
GENERAL This section is extracted from

instruction manual.

Installing the battery (See fig. fl)

1 1 Turn the grip counterclockwise.
2 Pull out the grip to open the battery compartment.
3 insert i new R6 (size AA) battery.
Battery life
When the power is turned on, the battery check indicator lights momentarily.
When the battery becomes weak, the initiator remains dimly lit or dies not light
E at all, In this case, replace the battery with a new one. The Sony RGIKSR)
manganese battery git-es continuous nperatlnn of the microphone for about 1300
ECM-MS9S7 ? l hours.
Notes on battery
To avoid damage to the unit from leakage and corrosion;
' Be sure to match the 0 and Oon the battery with the same marks on the
battery compartment.
~ Do not try to recharge battery.
. Remove the battery tithe microphone is not to be used lttra long period or
time.
In case ol battery leakage, wipe oil Any deposit in the battery campmmenl
before installing a new battery.

Connection (See fig. I3)

Connect the L-shitped stereo miniplug to the MIC iack oi your recording
equipment (MD, DAT, etc.) as Illustrated in rig. [3,

Parts Identification and Uses (See fig.

I3 Connecter
Insert the cttnnecter tn unttl lt cltcks, Remove the connecter by pressing the
button.
Wind screen
Attach in ordertn reduce wind or breathing noise.
Battery check indicator
When the power/directive angle switch is turned lmm OFF to ON. this
indicator lights momentarily. When the battery becomes weak, the Indicator
remains dimly lit Or does not light at all. In this case. replace the battery with
a new one.
IE Power/directive angle switch

Set the swttch according to the sound source.

or; turns power ntt.

90- Use to pick up . relatively nest, narrower sound source
(instni mental solo, birds or insects' chirp. tic.)

120' Use to pick up a relatively distant, wider sound sat-1:
(orchesrrz.chorus, train. at me, etc.)

The above gives guidelines for selecting the appropriate angle. A. ough
tollounng those guidelines is encouraged, you can freely choose «her angle
according to your own preference.
3 Microphone holder
You can also connect to a microphone stand (PF . Iz) (optional).
IE1 Grin
As shown in the illustration, it can be used as a handy microphone. Loosen
the screw and detach the grip trorn the microphone stand.
Screw
Tighten the screw alter setting the direction of the microphone.
E L-shaped stereo miniplug
Connect to the MIC jack of your recording uipment (DAT. MD, ST, etc.)
|_9_| 6) Turning capsule button (See fig. )
Set the turning capsule button according to the direction of the sound
source. As shown in the illustration, set the microphone head toward the
sound source by pressing the turning capsule button.
(9 Using the microphone vertically
This position makes a more actuate sound pick-up. Use this posirloh atter
monitoring and ldjusting the sound quality at your recording equipment.
E (9 Using the miaophone horizontally

This position makes for a successful sound pick-up without any line
adjustments.

Microphone stand (See fig. E)

As shown in the illustration, spread out the legs to use the stand.