Sony ECM-969 User manual

Table of contents

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GENERAL

Battery:

Microphone

Cutput

Terminal:

Dimensions:

Weight:

Finish:

PERFORMANCE

Directivity:

ae

Frequency

Response

Output

impedance:

Output

Level!

(deviation

+3

dB)

=*

Power

Requirements:

Electret

condenser

microphone

(with

back-electret

condenser)

Sony

junction

FET

Penlight

battery

Size

AA

(IEC

Designation-R6)

SONY

SUM-3

(Manganese)

Cannon

XLR-5-12C

40mm

dia.

x

245mm

15/,

inch

dia.

x

93/,

inches

272g,

9.6

oz

(including

battery)

Metallic

qray

finish

Variable

AQ

Hz

to

20,000

Hz

600

2

+20

%,

balanced

Open

circuit

voltage”:

600

2:

-70.0

dB

(0.282

mV)

*Q

dB

=1mW/10ubar

at

1,000

Hz

Recommended

load

impedance

is

more

than

3kQ2.

Normal

operating

voltage:

1.5

V

DC

Minimum

operating

voltage:

1.1

V

DC

Current

drain:

Less

than

8.0

mA

Battery

life:

Approx.

100

hours

with

EVEREADY-No:

1015,-SONY:

SUM-3

way

Goan

bad

uaet

4

<2)

&

3

pos

i

<

a

Art

*

gay

Maximum

Sound

Pressure

Input

Level:

(at

1,000

Hz,

1%

distortion)

Dynamic

Range:

Environmental

Temperatures:

Signal-to-noise

ratio;

More

than

44

dB

(1,000

Hz,

tubar)

inherent

noise;

Less

than

30dB

SPL

(O0dB=2x

10%

ubar)

wind

noise

*1:

(with

the

wind

screen)

Less

than

45

dB

SPL

Induction

noise

from

external

magnetic

field

*2:

Less

than

5

dB

SPL/m

gauss

et

Wind

noise

is

the

vaiue

measured

by

ap-

plying

a

wind

velocity

of

2

m/sec.

from

all

directions

to

the

microphone.

The

mean

value

is

taken

and

converted

to

the

equivalent

input

sound

level.

*9

The

external

magnetic

field

induction

noise

is

measured

with

the

microphone

placed

in

an

alternating

magnetic

field

of

5OHz,

1.

milligauss.

The

maximum

noise

value

is

taken

and

the

converted

to

the

equivalent

input

sound

level.

(OdB

=2x

10%

ubar)

130

dB

SPL

(0dB

=2x

10%

ubar)

More

than

100

dB

-20°C

to

+60°C

for

storage

O°C

to

+60°C

for

operation

ECM-969

Former

and

New

Model

Identification

for

E

Model

Cover,

case

K

2

x

3A

The

production

number

is

Former

Madel

New

Model!

3)

stamped

on

the

label.

K2x5

34Z0

Stor

eee

DISASSEMBLY

Note:

Follow

the

disassembly

procedure

in

the

numerical

order

given.

CAPSULE

AND

UNIT

BOARD

REMOVAL

P2xX3

P1.4x3.5¢

8

@

Unsolder

microphone

Case

assy

CONTROL

BOARD,

SWITCH,

VARIABLE

RESISTOR,

CANNON

PIN

INSERT

REMOVAL

cloth

©

precision

screwdriver

control

case

&

/

.

Bl

eo

power

knob

op

thin

paper

grip

stopper

ring

ECM-969

control

case

case

cover

switch

cover

<<

relay

ring

Connector

pin

microphone

case

joint

@

P1.7x3

battery

holder

WN

oe

we

@)

Unsolder

Unsolder

S|

‘

@

Zs

“ee

LED

plate

control

board

variable

resistor

CM-969

E

model

(Former

type)

A

B

c

D

MOUNTING

DIAGRAM

—

Conductor

Side

—

(CONTROL

BOARD

[UNIT

BOARD]

co!

cui7-oi-10

a

1d

GRN

C02

CUI7-01

Ne

+)

|

RED

RED

BATTERY

(ZE

“AA

T

3

rte

(1

Variable

resistor

BLK

bracket

ale

=e

1

ORG

RV1-1

Ces

|

50k(B)

|

|O@O+

zz

evi?

|

ES

aw

kK(C

@@@

EX

er

Note:

®

o—

:

parts

extracted

from

the

component

side.

e

®

:

Through

hole.

E

model

(Former

type)

A

B

|

C

SCHEMATIC

DIAGRAM

aim

PRR

SLT

IT

ESTELLE

ETO:

=

SES

OV

QI

2SK243-4

Q2

251362

Q3

2SC1362

IMPEDANCE

CONVERTER

HIGH-CUT

FILTER

BUFFER

AMP

()

©)

|

COA

>

S

CUI7-O1-10

Q5

2SC1362

HIGH-CUT

FILTER

Q4

2SK243-4

IMPEDANCE

CONVERTER

oF

CO-2

()

cul7-O!

=)

Aeon

4e

c0-3

R14

7k

CUI7-Ol-10

(UNIT

BOARD]

,D1

SLP

a

‘

REMOTE

STEREO

r—Q

\

OFF

L!

470mH

CONVERTER

1.5V

=

9.0V

Q7

2SC1363

SWITCHING

SS

[CONTROL

BOARD]

Note:

e

All

capacitors

are

in

wF

unless

otherwise

noted.

pF:

wuF

50

WV

or

less

are

not

indicated

except

for

electrolytics

and

tantalums.

e

All

resistors

are

in

ohms,

%W

unless

otherwise

noted.

kQ

+

1,000

2,MQ

:

1,000

kQ

e

Voltages

are

dc

with

respect

to

ground

unless

otherwise

noted.

Semiconductor

Lead

Layouts

D1:

SLP137B

D2:

181555

Q1:

2SK243

Q2,

3:

28C1362

cathode

anode

cathode

Q4:

2SK243

Q5,

6:

28C1362

Q7:

28C1364

i>)

nA

om

ba)

ro

&

a)

yD

&

ECM-969

ECM-969

Ae

avis

SSN

nad

Rt

RECS

N.

ECM-969

ECM-969

E

model

(New

type),

AEP

model

|

E

model

(New

type),

AEP

model

A

_

B

C

=D

A

B

c

D

SCHEMATIC

DIAGRAM

_

7

MOUNTING

DIAGRAM

-[CONTROL_BOARD)

—

Conductor

Side

—

Ql

25K

243-4

Q2

3

2SC1362

3

2501362

ay

~

IMPEDANCE

CONVERTER

I

HIGH-CUT

FILTER

BUFFER

AM

1

(UNIT

BOARD]

=

©!

cur7-o1

GRN

Q4

2SK243-4

Q5

2SCi362

Q6

2SC1362.

IMPEDANCE

CONVERTER

HIGH-CUT

FILTER

BUFFER

AMP

i>

C0-2

tL)

C)

cul7-O1

)

Rom

|

AV

CO2

CuI7-O!

[eo

YEL

+)

o

cig)

cul7-01

Tok

2

{UNIT

BOARD)

REMOTE

‘STEREO

¢

\

OFF

L1

470mH

CONVERTER

1.5V

-9.,0V

SIZE

“AA'

Ipc.

Q7

2SCI363

SWITCHING

(CONTROL

BOARD)

CT

RED

RED

3

BATTERY

|

+

SIZE

‘AA’

=»

—

Ipc.

Note:

BLK

e

All

capacitors

are

in

uF

unless

otherwise

noted.

pF:

wuF

S5OWV

or

less

are

not

indicated

except

for

electrolytics

.

Variable

resistor

__

BLK

and

tantalums.

bracket

@

All

resistors

are

in

ohms,

%W

unless

otherwise

noted.

ig

BR

—

ka:

11,0002,

MQ

:

1,000

k2

a

se

@

Voltages

are

dc

with

respect

to

ground

unless

otherwise

IS]

ORG

RV

1-1

as

|

noted.

50k(B)

|

|O@@@+

|

RV1-2

ceil

50k(C)

|

L@

Qe!

GRN

Semiconductor

Lead

Layouts

A

D1:

SLP137B

D2:

181555

Q1:

2SK243

Q2,

3:

28C1362

cathode

‘

:

at)

E

anode

cothode

Ec

3

Q4:

2SK243

Q5,

6:

2SC1362

Q7:

2S8C1364

5

Note:

@®

oO——

:

parts

extracted

from

the

component

side.

©

®

:

Through

hole.

|

:

|

ECM-969

D

EXPLODED

VIEW

Note:

®

items

marked

‘‘@”

are

not

stocked

since

they

are

seldom

required

for

routine

service.

Some

delay

should

be

anticipated

when

ordering

these

items.

@

All

screws

are

Phillips

(cross

recess)

type

uniess

otherwise

noted,

(-}

=

slotted

head

2-529-715-00

1-555-464-00

Receptacle,

arm

securing

2.529-733-00

Cord,

microphone

screw

Bushing,

cord

1-561-604-00

2-529-713-00

Plug

Connector

Knob,

arm

flock

1-506-405-27

Plug

fred),

phone

1-506-405-31

Plug

{white},

phone

2-522-240-00

CNP

2

Sleeve

,

connector

t

.

2.529-709-00

;

a

10-00

Connector

pin

nOD

COWES

\

Supplied

with

ms

Connector

pinz

\

A-4581-023-A

Holder

Ass’y

microphone

2-5

19-343-00

:

2-529-725-00

Cushion

’

Cover,

switch

K2x

3

ig,

2-527-097-00

;

Ree

ais

Spring,

battery

;

i

2-529-708-00

PLIx3

SS

!

ead

|

Knob,

direction

select

Ca

N2

2-529-738-00

|

=

|

Label,

specification

6

2-529-710-00

9)

~ oS

Lug,

2mm

a“

Plate,

LED

_

-

ant

P2x4

ct

rae

“

7

oF

ae

1)

p2x

ee

2.529-722-00

:

Cover,

case

Supplied

with

3-844-685-00

2-529-731-00

variable

resistor

N2

.

Holder,

battery

Protector

{B),

dust

!

@

2-529-705-00

(Mo

2

Bracket,

variable

at

resistor

2

@

2-529-704-00

y

&

1-603-711-00

Chassis

>:

if

>

PC

Board,

control

2

ua

AVI

a

~

TA

-

1-226-904-00

mM

2x4

|

-

Resistor,

variable

<>.

ae

AT

5OK2-B/5OKI-C

RB)

ae

ip

|

ss

4

fA

P2x3

WS

)

A

Se

-

PIx

3

P2x

3

a

ge

a

PI4x

35

&

2.529-721-00

ae

:

Joint,

microphone

ae

a

case

&

1-603-710-00

PC

Board,

unit

2-529-732-00

e

Base,

capsule

2-523-713-00

\

|

Terminal

3

NO

s

2-520-118-00

CO1,

3

CU17-01-10

ees

8-8714-171-10

\K2x

3

2

Capsule

(Former

E

mode!)

e

CO?1,

2,

3

CUT7-01

8-814-171-04

{New

E

model,

AEP

model}

K2x5

rapsule

2.529-7.28-00

Cushion

(Aj,

base

a

2-529-

729-00

Cushion

(B),

base

K2x3

2-529-701-00

Ome

Grip

x

+

2-529-706-00

4

A-4514-024-A_

Cover,

LED

~~

\

L

eens

ase

Ass’y,

microphone

K2x3

cb

@

2-529-703-00

Ring,

relay

K2x3

2-529-720-00

Case,

control

te

Ba

pa

lt

eRe

be

eg

A

ECM-969

ELECTRICAL

PARTS

LIST

Ref.

No.

Part

No.

Description

SEMICONDUCTORS

ACCESSORIES

AND

PACKING

MATERIALS

Transistors

Part

No.

Description

oe

pxnaoes-00

25K243

A4580-007-A

Screen

Ass’y,

wind

oa

Btez

Oa

47.

BSCI3G2

A-4581-023-A

Holder

Ass’y,

microphone

Q4

8-765-654-00

2SK243

Q5,6

ce

6

1-528-027-11

Battery

SUM-3

2

a

a

28C1364

1-555-464-00

Cord,

microphone

1-561-509-31

Plug

Connector

(white)

piodes

1-561-509-41

Plug

Connector

(red)

Di

8-719-901-37

SLP137B

D2

8-719-815-55

1S1555

2-100-952-00

Adaptor,

stand

screw

(SAD-35)

2-529-734-00

Spacer

CAPACITORS

2-529-735-00

Carton

2-529-736-00

Case,

carrying

Cd

1-130-505-11

0.0012uF

s5O0V

film

2-599-152-11

Manual,

instruction

(E

model)

C2

1-130-500-11

0.00047uF

50V

film

2-599-152-51

Manual,

instruction

(AEP

model)

C6

1-130-505-11

O.001i2uF

SOV

film

C7

1-130-500-11

0.00047nF

SOV

film

3-701-630-00

Bag,

plastic

RESISTORS

R1,12

1-208-256-00

1,000M2

~~

micro

R22

1-246-783-11

1kQ

i/,

W

Carbon

R23

1-246-863-11

43k

1/,W

Carbon

RV1

1-226-904-00

50

kQ-B/50

kQ-C

variable

MISCELLANEOUS

CNP

1-506-139-00

CANNON

Pin

Insert

COl

8-814-171-10

Capsule,

CU17-01-10

(Former

E

model)

CO1,

2,3

8-814-171-04

Capsule,

CU17-01

(New

E

model,

AEP

model)

CO3

8-814-171-10

Capsule,

CU17-01-10

(Former

E

model)

Ll

1-407-171-10

Coil,

microinductor

Tl,

2

1-427-486-00

Transformer,

microphone

output

1-464-134-00

DC-DC

Converter

1-506-405-21

Plug

(red),

phone

1-506-405-51

Plug

(white),

phone

1-508-363-00

Connector,

CANNON

F257

1400

Switch,

slide

Items

marked

“§”

are

not

stocked

since

they

are

1-603-710-00

PC

Board,

unit

seldom

required

for

routine

service.

Some

delay

@

1-603-711-00

PC

Board,

control

should

be

anticipated

when

ordering

these

items.

Sony

Corporation

©1981

81E0653-1

9-954-920-12

ane

Cc

ee

Printed

in

Japan