Sony ECM-44BMP Bedienungsanleitung

1st Edition (Revised 1)

ELECTRET CONDENSER MICROPHONE

ECM-44BMP

ECM-77BMP

ECM-166BMP

SERVICE MANUAL

ECM-77LM

ECM-77BC

ECM-77B

-FortheECM-77LM,referto"Appendix(ECM-77LM)".

-FortheECM-77BC,referto"Appendix(ECM-77BC)".

-FortheECM-77B,referto"Appendix(ECM-77B)".

CorrectedonJanuary5,2021

!WARNING

This manual is intended for qualified service personnel

only.

To reduce the risk of electric shock, fire or injury, do not

perform any servicing other than that contained in the

operating instructions unless you are qualified to do so.

Refer all servicing to qualified service personnel. The material contained in this manual consists of

information that is the property of Sony Corporation and

is intended solely for use by the purchasers of the

equipment described in this manual.

Sony Corporation expressly prohibits the duplication of

any portion of this manual or the use thereof for any

purpose other than the operation or maintenance of the

equipment described in this manual without the express

written permission of Sony Corporation.

Le matériel contenu dans ce manuel consiste en

informations qui sont la propriété de Sony Corporation et

sont destinées exclusivement à l’usage des acquéreurs

de l’équipement décrit dans ce manuel.

Sony Corporation interdit formellement la copie de

quelque partie que ce soit de ce manuel ou son emploi

pour tout autre but que des opérations ou entretiens de

l’équipement à moins d’une permission écrite de Sony

Corporation.

Das in dieser Anleitung enthaltene Material besteht aus

informationen, die Eigentum der Sony Corporation sind,

und ausschließlich zum Gebrauch durch den Käufer der

in dieser Anleitung beschriebenen Ausrüstung bestimmt

sind.

Die Sony Corporation untersagt ausdrücklich die

Vervielfältigung jeglicher Teile dieser Anleitung oder den

Gebrauch derselben für irgendeinen anderen Zweck als

die Bedienung oder Wartung der in dieser Anleitung

beschriebenen Ausrüstung ohne ausdrückliche

schriftliche Erlaubnis der Sony Corporation.

TableofContents



1.OPERATION.............................................1

2.ECM-44BMP............................................2

3.ECM-77BMP............................................3

4.ECM-166BMP.........................................4

Appendix(ECM-77LM)............................5

Appendix(ECM-77BC).............................8

Appendix(ECM-77B).............................18

ECM-44BMP

ECM-77BMP

ECM-166BMP

1. OPERATION

3-860-338-04(1)

Electret Condenser

Microphone

Operating Instructions

Manual de instrucciones

Mode d’emploi

Bedienungsanleitung

General

Type

Electret condenser

Power requirements

3 to 10 V DC (supplied from

an external device, such as a

Sony transmitter)

Current consumption

0.4 mA or less

Cable

ECM-166BMP/122BMP/

121BMP/44BMP:

2.3mm (

inches) dia., 2-

conductor shielded cable

ECM-77BMP: 2mm (

inches) dia., 2-conductor

shielded cable

Cable length

ECM-166BMP/122BMP/

77BMP/44BMP: Approx.

1.2 m (3.9 feet)

ECM-121BMP:

Approx. 0.2 m (7

inches)

Connector

3-pole mini phono plug (3.5

mm (

inches) dia.) with a

lock mechanism

Mass

(microphone only, without cable)

ECM-166BMP: Approx. 3.5 g

(0.12 oz)

ECM-122BMP/121BMP:

Approx. 3 g (0.1 oz)

ECM-77BMP: Approx. 1.5 g

(0.05 oz)

ECM-44BMP: Approx. 2 g

(0.07 oz)

English

The ECM-166BMP/122BMP/121BMP/77BMP/44BMP

Electret Condenser Microphone is designed for use with a

transmitter having a 3-pole minijack with a lock mechanism

used in a Sony 800-MHz band wireless microphone system.

Connecting to the Transmitter (See fig. A.)

Connect the output connector of the microphone to the

input connector of the transmitter.

Turn the lock ring to lock.

Set the PHASE switch of the transmitter as follows.

ECM-166BMP/122BMP/121BMP: =

ECM-77BMP/44BMP: φ

Specifications

Dimensions (microphone only)

ECM-166BMP:

12.5 dia. × 23.5 mm

(

dia. ×

inches)

ECM-122BMP/121BMP:

8.5 dia. × 17.0 mm

(

dia. ×

inches)

ECM-77BMP:

5.6 dia. × 12.5 mm

(

dia. ×

inches)

ECM-44BMP:

8.5 dia. × 14.5 mm

(

dia. ×

inches)

Accessories supplied

Holder clip (1)

Wind screen (1)

Operating Instructions (1)

Performance

Frequency range

ECM-166BMP/122BMP/

121BMP:

100 to 10,000 Hz

ECM-77BMP:

40 to 20,000 Hz

ECM-44BMP:

40 to 15,000 Hz

Directivity

ECM-166BMP: Uni-

directional

ECM-122BMP/121BMP/

77BMP/44BMP:Omni-

directional

Output impedance

2.5 kohms ±30% at

1000 Hz, unbalanced

Design and specifications are subject to change without notice.

POWER

OFF ON

INPUTPHASE

SETCH

BATT

–



ECM-166BMP/122BMP/

121BMP/77BMP/44BMP

ECM-166BMP/122BMP/121BMP/77BMP/

44BMP

Sony Corporation  1997 Printed in Japan

This section is extracted

from operation manual.

ECM-44BMP/ECM-77BMP/ECM-166BMP

2ECM-44BMP

ECM-77BMP

ECM-166BMP

2-1. SCHEMATIC DIAGRAM

2-2. SPARE PARTS

NO. Part No. SP Description

1 A-4510-056-A s CAPSULE ASSY

2 A-8315-472-A s CASE ASSY, AMPLIFIER

3 1-500-249-21 s BEAD, FERRITE (CASE)

(For CE model only)

Q'ty Part No. SP Description

1pc X-3167-902-1 s SCREEN ASSY, WIND

1pc X-2537-903-1 s CLIP ASSY, HOLDER, HORIZONTAL

1pc 3-860-338-04 s MANUAL, INSTRUCTION

2-3. ACCESSORIES SUPPLIED

WIND SCREEN ASSY HORIZONTAL CLIP ASSY

3-pole mini

Phone plug Chip

Sleeve

Ring

RED

SHIELD

CAPSULE

AMPLIFIER

CASE

ASSY

CABLE WHT

ECM-44BMP

2. ECM-44BMP

ECM-44BMP

ECM-77BMP

ECM-166BMP

ECM-77BMP

3-1. SERVICE INFORMATION

Microphone Capsule Removal

3-3. SPARE PARTS

NO. Part No. SP Description

1 A-4510-050-A s CAPSULE ASSY

2 A-8320-067-A s CASE ASSY, AMPLIFIER

3 1-500-249-21 s BEAD, FERRITE (CASE)

(For CE model only)

Q'ty Part No. SP Description

1pc X-5237-404-1 s SCREEN ASSY, WIND

1pc X-5237-410-1 s CLIP ASSY, HOLDER, HORIZONTAL

1pc 3-860-338-04 s MANUAL, INSTRUCTION

3-4. ACCESSORIES SUPPLIED

WIND SCREEN ASSY HORIZONTAL CLIP ASSY

3. ECM-77BMP

3-2. SCHEMATIC DIAGRAM

3-pole mini

Phone plug Chip

Sleeve

Ring

RED

SHIELD

CAPSULE

AMPLIFIER

CASE

ASSY

CABLE WHT

Note on mounting

Remove the cpasule assembly

with rubber sheet.

Amplifier case assembly



Capsule assembly



With locking compound



Amplifier case assembly

Capsule assembly

Contact spring



Locking compound: 0.0001 ml

Clean the spring 

portion of the contact

with toluene.



Tightening Torque:

0.11~0.12N•m

(1.1~1.2kgf•m)



4ECM-44BMP

ECM-77BMP

ECM-166BMP

4-3. SPARE PARTS

INDEX

NO. Part No. SP Description

1 1-776-837-41 s CORD WITH CONNECTOR

2 2-538-949-01 s CASE (CAPSULE)

3 2-538-950-01 s SCREEN, SIDE

4 2-538-951-01 s SCREEN, TOP

5 2-540-961-01 s CASE (BUSHING)

6 8-814-227-00 s MICROPHONE BUILT-IN

7 2-523-605-00 s BUSHING, MICROPHONE

8 1-500-249-21 s BEAD, FERRITE (CASE)

(For CE model only)

Index Part No. SP Description

no.

101 X-2536-801-1 s CLIP, ASSY, HOLDER

102 2-539-598-01 s SCREW, WINDOW

— 3-860-338-04 s MANUAL, INSTRUCTION

4-4. ACCESSORIES SUPPLIED

4. ECM-166BMP

4-2. SCHEMATIC DIAGRAM4-1. SERVICE INFORMATION

Built-in Microphone and Microphone Cable

ECM-166BMP

101

102

24673



Remove the case

(Capsule) with

rubber sheet.



Built-in Microphone

Case (Capsule)



Microphone Cable



Microphone Bushing



Case (Bushing)



Microphone Cable



Built-in Microphone



Ground

Built-in Microphone

Drain

Source

White

Red

Unsolder.

CABLE WHT

CHIP

3-POLE MINI PHONE PLUG

RING

SLEEVE

C-1022

RED

SHIELD

[Description]

The connector of A-2207-775-A “CASE ASSY (S), AMPLIFIER” cannot be disassembled for

servicing or replaced either.

[Parts Registration Info.]

CASE ASSY (S), AMPLIFIER

A-2207-775-A

Only for ECM-77LM (New)

CAPSULE ASSY

A-1541-734-A

Common for ECM-77 (Existing part)

CLIPASSY, HORIZONTAL

HOLDER

X-2537-404-6

Common for ECM-77 (Existing part)

SCREEN ASSY, WIND

A-1927-706-A

Common for ECM-77 (Existing part)

Fig.1

[Parts/Tools Required]

-Screw locking compound (ThreeBond TB-1401B or equivalent)

-DWT-B03R or equivalent and receiving system (for sound quality/operation check)

[Schematic]

Fig.2

①

②

③

④

CAPSULE

ASSY

CASE ASSY, AMPRIFIER

RED

8.2kΩ

220pF

SHIELD

3pin - Lemo

CONNECTOR

3pin - Lemo

CONNECTOR

view

Appendix (ECM-77LM)

[Procedure]

1. Remove CAPSULE ASSY

CAPSULE ASSY can be removed as shown in Fig.3.

Fig.3

2. Install CAPSULE ASSY

CAPSULE ASSY is installed as shown in Fig.4.

Fig.4

3. Operation check

(1) Confirmation of sound output

1-1 Insert the two projections (Both sides of red mark) on output terminal of “CASE ASSY

(S), AMPLIFIER” while fitting with the groove of input terminal of DWT-B03R side.

(Fig.5)

1-2 Lock the ring located in the output terminal of “CASE ASSY (S), AMPLIFIER” while

rolling.

1-3 Confirm if the sound is output by performing sound output and check the sound quality.

Fig.5

CASE

ASSY(S),AMPRIFIER

Screw locking

compound

CAPSULE ASSY

CASE ASSY

(S),AMPRIFI

Tightening torque:：0.11 - 0.12Nm

CAPSUL

E ASSY

Clean contact spring with ethanol.

Apply screw locking compound on the area

shown below. (Half circumference)

Screw locking

compound applying

area

(2) Noise check (Bending test)

Portion: Capsule side (Fig.6), Connector side (Fig.7)

Operation: Take the cable while holding Capsule(connector), and bend it from right side to

left side with an angle of 90 degrees by 2 - 3 times.

Standard: Sound does not cut out and sound noise does not occur.

Fig.6 Fig.7

(3) Noise check (Shock test)

Portion: Capsule portion

Operation: Take the cable of the position of 5 cm from tip of capsule (Fig.8), hit the capsule on

the desk from 5 – 10 cm upper position (Fig.9), and give the shock to it.

After that, roate the cable (Fig.10), do it 10 – 15 times repeatedly and evaluate the

whole around of the capsule.

Specification: Sound does not cut out and sound noise does not occur.

Fig.8 Fig.9 Fig.10

2–3time

Appendix (ECM-77BC)

[Corrections]

The specifications of the ECM-77BC differ depending on whether it is improved one against the high

frequency interference (supporting Digital WL) or not.

The specifications can be recognized by the color of the microphone bushing.

Microphone bushing:

black

= Not improved one

Microphone bushing:

gray (short)

= improved one against the high frequency interference (1)

(Supporting Digital WL)

gray (long)

= improved one against the high frequency interference (2)

(Supporting Digital WL)

-ECM-77BC Microphone bushing

9.5

18.5

2-523-605-11

Black and

short

2-523-605-21

Grayand short

4-589-384-01

Gray and long

Fig. 1

Fig. 2

Fig. 3

Fig. 4

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