Sony ECM-999 User manual

EGM-999/999PR

SERVICE

MANUAL

SPECIFICATIONS

General

Type

Microphone

output

connector

Microphone

cord

Battery

Dimensions

Mass

Supplied

accessories

Performance

Frequency

response

Directivity

Output

impedance

Sensitivity(directive

angle

120°)

Power

requirements

Noise

level

One-point

stereo(employing

the

Mid-Side

system),

electret

condenser

microphone(with

back-electret

condenser

capsules)

Cannon

XLR-5-12C

type

(Pin

connection:

1.Shield

2.L

ch.hot

3.L

ch.cold

4.R

ch.hot

5.R

ch.

cold)

,

Parallel

two

core

shielded,

OFC(Oxgen

free

copper)

With

Cannon

type

connector

Length:

Approx.

5m

R6

(size

AA)

battery

40

x

246

mm

(Outside

diameter

x

length)

(1

5/2

x

9

5/

inches)

Approx.

385

g

(13.5

0z)(including

battery)

Wind

screen

(1)

Microphone

holder

(1)(PF'/2

screw)

Microphone

cord

(1)

.

Adapting

cord

OFC(Oxygen

free

copper)

Length:

Approx.

50

cm

(2)

(ECM-999

only)

Microphone

stand

screw

adapter

SAD-35

(1),

SAD-34

(1)

Carrying

case

(1)

Operating

instructions

(1)

20

-

20,000

Hz

(See

the

illustration

[A].)

Mid-Side

stereo

system

Directive

angle

:

0°

to

150°

continuously

variable

(See

the

illustration

'B})

480

ohms

+20%,

balanced

Open

circuit

output

voltage

level’:

-48

+3dB

Effective

output

level*?

:

-50.8

+3dBm

Difference

between

L

and

R

channel

sensitivity:

Less

than

3dB

*1

OdB

=

1V/Pa,

1,000Hz

(1Pa

=

10

bar

=

94dBsrt)

°2

0dBm

=

imW/Pa,

1,000Hz

Recommended

load

impedance

:

More

than

3

kilohms

Normal

operating

voltage

:1.5

V,

R6

(size

AA)

battery

Minimum

operating

voltage

:

Approx.

1

V

Battery

life

:

Approx.

80

hours

with

a

Sony

R6P

(size

AA)

battery

Signai-to-noise

ratio

:

More

than

68

dB(1,000

Hz,

1Pa)

Inherent

noise

(Converted

to

the

equivalent

input

sound

!evel)*?

:

Less

than

26

dBspt

Wind

noise

(With

wind

screen)"*:

Less

than

50

dBset

Induction

noise

from

external

magnetic

field"*

:

Less

than

10

dBset

°3

OdBsm

=2x

10°Pa

°4

Wind

noise

is

the

value

measured

by

applying

a

wind

velocity

of

2ms

(6.6

ft/s)

from

ail

directions

to

the

microphone.

The

mean

value

is

taken

and

converted

to

the

equivalent

input

sound

level.

.

"5

The

external

magnetic

field

induction

noise

is

measured

with

the

microphone

placed

in

an

altemating

magnetic

field

of

50

Hz,

1x

10°’T.

The

maximum

noise

value

is

taken

and

then

converted

to

the

equivalent

input

sound

level.

Maximum

sound

pressure

input

level

Dynamic

range

Operating

temperature

Storage

temperature

Optional

accessories

Plug

adaptor

More

than

130

dBspr

(at

1,000

Hz,

1%

distortion)

More

than

104

dB

0

°C

to

40

°C

(32

°F

to

104

°F)

—

20

°C

to

+60

°C

(-4

°F

to

+140

°F)

PC-201M

(Miniplug

«>

Phone

jack)

PC-58S

(Stereo

miniplug

«=

Phone

jack

x

2)

Design

and

specifications

are

subject

to

change

without

notice.

US

Model

Canadian

Model

AEP

Model

E

Model

ECM-999

US

Model

E

Model

ECM-999PR

Features

*

The

Mid-Side

system’

is

employed

to

give

excellent

sound

image

and

faithful

stereo

sound

reproduction

with

less

“hole

in

the

middle”.

¢

The

directive

angle

between

the

left

and

right

channels

can

be

changed

progressively

from

0°

(monaural)

to

150°

according

to

the

sound

source.

*

Electret

condenser

microphone

with

back-electret

condenser

capsules

permits

good

sound

pick

up.

*

Mid-Side

system

The

sum

of

signals

of

the

mid

microphone

unit

(uni-directional)

and

side

microphone

unit

(bi-

directional)

and

the

difference

between

them

are

used

for

R

and

L

channels

respectively.

ELECTRET

CONDENSER

STEREO

MICROPHONE

SON

Y.

ECM-999/999PR

Frequency

Response

See

illustration

[A].

Directive

angle

120°

.

8

-

L-channel

directional

pa

R-channel

directional

Directivity

axis

(0°)

nee

axis

(0°)

See

illistration

[B].

.

ee

>

~

R

(180°)

L

(180°)

[A]

@

Directional

axis(0°)

@

180°

from

the

directional

axis

foe

as

tH

inal

ins

Response

(dB)

.

i

A

|

HICH

HSE

EEN

LUT

500

1k

2k 5k

10k

20k

Frequency

(Hz)

Directive

angle

120°

7

R-channel

directional

axis

(0°)

Battery

Installation

When

to

replace

the

battery

When

the

power

is

turned

on,

the

battery

check

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.

Sony

R6P

(size

AA)

battery

gives

continuous

operation

of

the

microphone

for

about

80

hours.

Notes

on

battery

To

avoid

damage

to

the

unit

caused

by

battery

leakage

and

corrosion;

*

Install

the

battery

with

correct

polarity.

*

Do

not

try

to

recharge

batteries.

*

Remove

the

battery

if

the

microphone

is

not

to

be

used

for

a

long

period

of

time.

In

case

of

battery

leakage,

wipe

off

any

deposit

in

the

battery

compartment

before

installing

a

new

battery.

Battery

check

indicator

Directive

angle

controller

Power/Low

cut

switch

Output

terminal

Microphone

holder

Hf

the

microphone

is

connected

to

the

equipment

with

a

phone

jack

,

use

the

supplied

adapting

cord.

Connector

Red

ow.

Right

(R)

White

..........

Left(L)

.

[6]

Adapting

cord

(ECM-999

only)

AC

Sp

y

AC]

=p

Wind

screen

|

gil

eo

on

Phone

plug

=

=|

{ND

=

=.

—-=

age}

&omm

(o(=lay

Cbatorslile)

aloes

late

Uses

G4)

Wind

screen

_

Attach

to

reduce

wind

or

breathing

noise.

[2]

[3]

[4]

[5]

[6]

Battery

check

indicator

When

the

power/low

cut

switch

is

set

to

M

from

OFF,

the

indicator

lights

momentarily.

This

indicates

that

the

battery

is

usable.

Directive

angle

controller

Selects

the

directive

angle

between

the

left

and

right

channels

in

accordance

with

sound

source

or

sound

level.

Location

of

a

microphone

Sound

sources

|

To

record

with

a

monaural

tape

recorder

|

oe

|

mY

To

pick

up

a

narrower

sound

source

90°

e.g.

*

An

instrumental

solo

5

Close

to

the

sound

source

120°

¢

Bird

and

insect

song

To

pick

up

a

wider

sound

source

i)

150°

e.g.

*

An

orchestra,

chorus

*

A

moving

train,

airplane,

motor

car

race

«

Speeches

at

a

conference

¢

Natural

sounds,

urban

sounds,etc.

Rather

farther

away

from

the

sound

source

While

picking

up

sounds

from

wider

(narrower)

sound

source,

avoid

moving

the

microphone

itself,

so as

to

maintain

the

original

sound

balance.

Microphone

holder

Install

to

the

optional

microphone

stand.

Power/Low

cut

switch

|

OFF

|

To

turn

off

the

power

To

pick

up

sounds

such

as

musical

instruments

and

natural

sounds

away

from

the

sound

orr—>

“

-—v

TIT)

| 4

ses

To

pick

up

a

human

voice

more

clearly

To

reduce

low

range

noise

such

as

wind

.

Adapting

cord

If

the

microphone

is

connected

to

the-equipment

with

a

phone

jack

,

use

the

supplied

adapting

cord.

Microphone

unit

How

to

direct

the

microphone

Note

Direct

the

microphone

to

the

sound

source

vertically.

When

the

microhone

is

used

upside

down,

L

and

R

Connection

To

attach

1

Align

the

connector

with

the

output

terminal

of

the

microphone.

CEM

To

detach

insert

the

connector

until

a

click

is

heard.

While

pressing

the

projection,

pull

out

the

DISASSEMBLY

Note:

Follow

the

disassembly

procedure

in

the

numerical

order

given.

©

precision

screwdriver

grip

control

case

@

POWER

©

switch

(direction

select)

CAPSULE

UNIT

BOARD

SECTION

grill

assy

in

the

pinhole

and

turn

to

the

stick

the

tip

of

tweezers

and

soon

counter

clock

wise

PRINTED

WIRING

BOARDS

I

Oa

or

ZO

ou

|

(BATTERY®)

LUG

a)

RV1-1

500k2B

-RV1-2

50kQC

MIC3

MIC2

Co}

(R)

(L)

VOLUME

MOUNTING

BRACKT

Y

ke)

MIC

(FRONT)

Z__L\

LUG

(BATTERYO©)

TI

T2

13

CNP

1

T4

SCHEMATIC

DIAGRAM

(UNIT

BOARD

]

{CONTROL

BOARD

]

Qi~3

Low

cur

04

2SK377

OFF

->M

ev

2S8C2785

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CONVERTER

if

meters

BUFFER

AMP

|

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aes

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4.7/\0V

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4.7/10V

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(vr

~~

D

HE

F

R

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cs

[wc

6

LEAs

mu

>

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12/1Y

2

‘

S)

3H

4S

RI

ON

alg

3av¥t

*"@

:

22k

RB

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R4

RG

=

82:

R7

33k

\

kK

Fa70K

S57,

®@

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an

7

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1OV

)

|

Ro

-

22k

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TI

®

|

Q5

QNIES

|

Si-2

28C2785

|

Low

CUT

BUFFER

AMP

@

OFF

eM

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|

ac

|

RII

cé

@

|

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R8

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RIO

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82k

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®

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=

Q9

Q8

Q7

Q6

Si-3

2SC2785

2502785

2801020

2S8C2785

_—

02

POWER

DC-DC

CONVERTER

DC-DC

CONVERTER

LIPPLE

FILTER

SLPI41B

OFF

MeV

T

7

1.5V

|

:

v4

DI

9.2V

L

ra

ras

rs

t_

A

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TW

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RIB

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@

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1.5V

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|

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|

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Sie

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4

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4.7/38V

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IC

@®)

i

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®

@ANS

C13

a

0.03Vg7

47/35V

1000p

DI

1S1555

Note

on

Printed

Wiring

Board:

Note

on

Schematic

Diagram:

@

oO——:

parts

extracted

from

the

component

side.

e@

All

capacitors

are

in

~F

unless

otherwise

noted.

pF:

uuF.

e

———:

parts

extracted

from

the

conductor

side.

50WV

or

less

are

not

indicated

except

for

electrolytics.

and

°

@

:

Through

hole.

tantalums.

°

:

Pattern

on

the

side

which

is

seen.

e

All

resistors

are

in

ohms,

1/4W

unless

otherwise

noted.

°

:

Pattern

of

the

rear

side.

kQ:

10000,

MQ:

1000kqQ.

o

Voltages

are

de

with

respect

to

ground

unless

otherwise

noted.

e

Semiconductor

Lead

Layouts

2SK377-K

2SC1020H

181555

SLP141B

2S8C2785

|

:

letter

side

cathode

(Ss

4

a

anode

||

©

cathode

D

anode

S

ece

EXPLODED

VIEW

AND

PARTS

LIST

NOTE:

e

The

mechanical

parts

with

no

reference

number

in

the

exploded

views

are

not

supp-

lied.

@

Items

marked

“*”

are

not

stocked

since

they

are

seldom

required

for

routine

ser-

vice.

Some

delay

should

be

anticipated

when

ordering

these

items.

:

1

not

supplied

.

20

MIC2

21

t

0

R

Ref.No.

Part

No.

-

Description

1

2-259-709-11

KNOB,

SWITCH

2

5-259-725-00

COVER,

SWITCH

3

2-529-846-11

KNOB,

VOLUME

*

4

2-529-742-01

PLATE,

LED

*

5

2-529-843-01

BRACKET,

VOLUME

*

6

1-622-146-11

CONTROL

BOARD

7

2-527-097-00

SPRING

8

2-523-710-00

LABEL,

BATTERY

g

5-529-731-00

PLATE,

BATTERY

10

5-529-839-01

SLEEVE,

CONNECTOR

Il

2-543-315-01

LABEL,

MODEL

NUMBER

(ECM-999PR)

Mi

2-543-133-01

LABEL,

MODEL

NUMBER

(ECM-999)

*

12

-2-529-847-01

PLATE,

SHIELD

*

43

2-529-837-11

COVER,

CASE

*

14

2-529-841-01

CHASSIS

*

415

2-529-836-01

JOINT,

CASE

|

ECM-999/999PR

~

not

supplied

emark

CNP1

(including

®

A)

25

Ref.

No.

Part

No.

Description

Remark

16

2-529-728-00

CUSHION

(A),

BASE

17

2-529-732-00

BASE,

CAPSULE

18

2-529-729-00

CUSHION

(B),

BASE

*

19

2-529-845-01

BRACKET,

CAPSULE

«

20

1-622-147-11

UNIT

BOARD

21

2-253-713-00

TERMINAL

22

X-2542-069-1

GRILLE

ASSY

23

2-529-706-00

COVER,

LED

24

2-529-838-01

CASE,

CONTROL

25

2-543-132-01

GRIP

*

26

2-529-844-01

CASE,

SHIELD

*

(NPL

1~-560-490-00

PIN,

CONNESTOR

5P

MICi

MIG2

>

X-2542-076-1

CAPSULE

KIT

MIC3

RV1

1-226-904-00

RES,

VAR,

CARBON

50K/50K

ECM-999/999PR

ELECTRICAL

PARTS

LIST

NOTE:

@

Due

to

standardization,

replacements

in

@

Items

marked

”*”

are

not

stocked

since

the

parts

list

may

be

different

from

the

they

are

seldom

required

for

routine

service.

When

indicating

parts

by

parts

specified

in

the

diagrams

or

the

Some

delay

should

be

anticipated

reference

number,

please

components

used

on

the

set.

when

ordering

these

items.

include

the

board

@

-XX

and

-X

mean

standardized

parts,

so

@

SEMICONDUCTORS

they

may

have

some

difference

from

the

In

each

case,

u:z,

for

example:

original

one.

uA..:

wA.

uPA..:

uPA.

@

RESISTORS

uPB..:

sPB..

uPC..:

sPC..

uPD..:

xPD..

All

resistors

are

in

ohms.

,

@

CAPACITORS

METAL

:Metal-film

resistor.

uF:

uF

METAL

OXIDE:

Metal

oxide-film

resistor.

@

COILS

F:nonflammable

uH:

4H

Ref.No.

Part

No.

Description

Remark

Ref.

No.

Part

No.

Description

Remark

*

1-622-146-11

CONTROL

BOARD

FEO

oo

ook

<

RESISTOR

>

<

CAPACITOR

>

Rl

1-249-433-11

CARBON

22K

5%

1/4W

R2

1-249-441-11

CARBON

100K

5%

1/4W

C1

1-131-375-00

TANTALUM

4.

TuF

10%

10V

R3

1-249-435-11

CARBON

33K

5%

1/4W

C2

1-131-375-00

TANTALUM

4.

7uF

10%

10V

R4

1-249-440-11

CARBON

82K

5%

1/4W

C3

1-130-487-00

MYLAR

0.

022uF

5%

50V

R5

1-247-895-00

CARBON

470K

5%

1/4W

C4

1-130-481-00

MYLAR

0.

0068uF

o%

30V

C5

1-131-375-00

TANTALUM

4.

7uF

10%

10V

RE

‘1-247-895-00

CARBON

470K

5%

1/4W

R7

1-249-434-11

CARBON

27K

=

5%

1/4W

C6

1-131-375-11

TANTALUM

4.

7uF

10%

10V

R8

1-249-433-11

CARBON

22K

5%

1/4W

C7

1-131-375-00

TANTALUM

4,

TuF

10%

10V

R9

1-249-433-11

CARBON

22K

5%

1/4W

C8

1-131-375-00

TANTALUM

4.

TuF

10%

10V

R10

1-249-440-11

CARBON

82K

5%

1/4W

C9

1-130-487-00

MYLAR

0.

022uF

5%

50V

C10

1-130-481-00

MYLAR

0.

0068uF

5%

50V

R11

1-247-895-00

CARBON

470K

5%

1/4W

R12

1-247-895-00

CARBON

470K

5%

1/4W

C11

1-131-375-00

TANTALUM

4.

TuF

10%

10V

R13

1-249-434-11

CARBON

27K

5%

/4W

C12

1-131-353-00

TANTALUM

10uF

20%

35V

R14

1-247-855-11

CARBON

10K

5%

1/4W

C13

1-126-163-11

ELECT

4.

7uF

20%

50V

R15

1-247-846-11

CARBON

4.3K

5%

1/4¥

C14

1-162-163-11

ELECT

4.

TuF

20%

50V

C15

1-161-039-00

CERAMIC

0.

001uF

10%

~=—50V

R16

1-247-887-00

CARBON

220K

5%

1/4W

R17

1-249-431-11

CARBON

15K

5%

1/44

C16

1-131-353-00

CERAMIC

10uF

20%

35V R18

1-247-855-11

CARBON

10K

5%

1/4¥

C17

1-124-584-00

ELECT

100uF

20%

10V

<

SWITCH

>

<

DIODE

>

Si

1-553-414-21

SWITCH,

SLIDE

(POWER/LOW

CUT)

D1

8-719-911-19

DIODE

188119

D2

8-719-938-45

DIODE

SLP141B-51

<

TRANSFORMER

>

<

TRANSISTOR

>

.

Tl

1-427-582-11

TRANSFORMER,

OUTPUT

T2

1-427-583-11

TRANSFORMER,

OUTPUT

Q4

8-729-119-78

TRANSISTOR

2SC2785-HFE

T3

1-427-583-11

TRANSFORMER,

OUTPUT

Q5

8-729-119-78

TRANSISTOR

2SC2785-HFE

T4

1-448-874-11

TRANSFORMER,

DC-DC

CONVERTER

Q6

8-729-119-78

TRANSISTOR

2SC2785-HFE

.

FOCI

COO

OOOO

OO

IO

IOI

OIC

OOOO

IOI

I

OOO

IO

IOI

IO

ok

Iorok

Q7

8-729-102-14

TRANSISTOR

2SD1021

Q8

8-729-119-78

TRANSISTOR

2SC2785-HFE

Q9

8-729-119-78

TRANSISTOR

2SC2785-HFE

Ref.

No.

Qi

Q2

Q3

Part

No.

Description

Remark

1-622-147-11

UNIT

BOARD

AIG

jatokok

2-523-713-00

TERMINAL

7-623-505-01

LUG,

2

<

TRANSISTOR

>

8-729-824-20

TRANSISTOR

8-729-824-20

TRANSISTOR

8~729-824-20

TRANSISTOR

2SK377-K1

28K377-K1

2SK377-K1

AICI

SII

II

IO

III

IO

IOI

SI

II

IOI

II

IR

IO

IOI

OI

Ok

sok

CNP1

MIC1

MIC2

MIC3

RV1

MISCELLANEOUS

ORR

IO

kk

foe

1~560-490-00

PIN,

CONNECTOR

oP

X-2542-076-1

CAPSULE

KIT

1-226-904-00

RES,

VAR,

CARBON

50K/50K

SEIOICI

OOOO

IOI

IO

IOI

IO

OO

OR OR

IO

OI

OOK

#1

#2

#3

#4

#5

#6

#7

#8

#9

#10

#11

#12

#13

#14

#15

#16

#17

ESIC

II

I

ok

kok

okok

HARDWARE

LIST

FICO

GO

IO

OO

iookokok

dog

tok

7-627-552-47

SCREW,

PRECISION

+P

1.

7X4

7-621-255-42

SCREW

+P

2X6

7-623-420-07

LW

2,

TYPE

B

7-623-505-01

LUG,

2

7-622-205-05

NUT

M2

TYPE2

7-685-102-21

SCREW

+P

2X4

TYPE2

SLIT

7-688-001-01

W

2.

MIDDLE

7-621-255-72

SCREW

+P

2X12

7-627~452-38

SCREW,

PRECICION

+K

2X5

7-621-255-15

SCREW

+P

2X3

7-627-551-67

SCREW,

PRECISION

+P

1.

4X3.

5

7-627-452-28

SCREW,

PRECISION

+RK

2X4

7-621-256-05

SCREW

+P

2X16

7-627-452-17

SCREW,

PRECISION

+K

2X3

7-627-452-18

SCREW,

PRECICION

+K

2X3

7-627-452-58

SCREW

+K

2X6

TYPE1

7-685-102-21

SCREW

+P

2X4

TYPE2

SLIT

AICCCR

IOI

IO

IOI

OIC

OIO

II

OIO

ICO

OO

I

ICO

IOI

FOR

TOR

BOK

Ref.

No.

ECM-999/999PR

Part

No.

Description

Remark

ACCESSORIES

&

PACKING

MATERIALS

CII

OI

OIG

OI

nO

OIOfok

1-696-451-11

CABLE,

MICROPHINE

(2

CORE)

1-696-566-11

CORD,

MICROPHONE

(DIA.5)

(2

CORE)

(ECM-

999)

2-100-951-04

ADAPTER,

SCREW,

STAND

(SAD-34)

2-100-952-00

ADAPTER,

SCREW,

STAND

(SAD-35)

2-543-210-01

INDIVIDUAL

CARTON

(ECM-999)

2-543-335-01

INDIVIDUAL

CARTON

(ECM-999PR)

3-795-503-11

MANUAL,

INSTRUCTION

(ENGLISH,

FRENCH.

SPANISH,

GERMAN,

DUTCH,

SWEDISH,

ITALIAN,

PORTUGUESE)

A-4580-007-A

SCREEN

ASSY,

WINDOW

X-2529-802-1

HOLDER

ASSY,

MICROPHONE

ECM-999/999PR

|

Sony

Corporation

English

Consumer

A

&V

Products

Company

Pri

ed

in

Japan

9-957-493-12

Personal

A

&

V

Products

Div.

©

1994.

10

Published

by

Home

A

&

V

Products

Div.

—_

1

O—

Quality

Engineering

Dept.

Sony ECM-999 User manual

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