Sony ECM-969 User manual

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