Sony C-47 User manual

OT SS ES
MICROPHONE
POWER
SUPPLY
UNIT
SPECIFICATIONS
Type:
C-47
Variable
directivity
condenser
microphone
**-
The
external
magnetic
field
induction
noise
is
Power
requirements:
Battery
operation:
measured
with
the
microphone
placead
in
an
Normal
operating
voltage:
6
V
DC
alternating
magnetic
field
of
50
Hz,
1m
gauss.
Minimum
operating
voltage:
Approx.4.5
V
DC
The
maximum
noise
value
is
obtained
and
then
Current
drain:
Less
than
40
mA
converted
to
the
equivalent
input
sound
level.
:
|
(0dB
=2x
10°
“ubar)
Battery
life:
Approx.
150
hours
with
Sony
long-life
batteries
OdB=
2x
Huet
AC operation: Power requirements 120 V AC, 60 Hz (US model) Maximum
220—240 V, 50/60 Hz (E model)
sound pressure
Power consumption 3 W
input level: Approx. 154 dB SPL (20—20,009 Hz)
Directivity:
|
Uni-directional
and
Omni-directional
variable
Dynamic
range:
Approx.
130
dB
Output
impedance:
50
2
+20%,
1,000
Hz,
balanced
=
wirenmentel
Output
level:
Effective
output
level:
—43
dBm
temperatures:
aon
as
140°F
for
storage
(0
dBm
=
1
mW
/1Oubar,
1,000
Hz}
39°
eas
140.
F
for
operation
Open
circuit
voltage:
0.82
mV/ubar,
at
1,000
Hz
Microphone
cable:
5.8mm
(4)
dia.,
4-conductor
shielded
Output
level
deviation
is
=2
dB.
cable:
Recommended load impedance is more than 3 k{2.
10 ft with CANNON
Frequency response: 30 Hz — 18,000 Hz
XLER-5-12C connector
Noise
level:
S/N
ratio:
More
than
50
dB
(1,000
Hz,
iubar)
Mounting
thread:
PF
%
Inherent
noise:
Less
than
24
oie
Dimensions:
See
page
2.
=
a
ba
‘
1
ee (OR = 2 5:10. HpaI) Weight: Microphone 500g, 1 Ib 202
Wind noise * Less than-45 €B SPL 2 a _
induce
Power
supply
VOOOG.
2
ie
202
poe noise (without batteries)
from externa!
magnetic field «2. Less than —20 dB SPL/m gauss
Wind noise is the value measured by applying
a wind. velocity of 6.6 ft/second from all di-
rections on the microphone. The mean value is
obtained and converted to the equivalent input
sound level. (0 dB =2 x 10 ubar]

Dimensions:
61 (2 2) mel S2dia
[ey a
16
Units
in
mm
(approximate
inches
in
parentheses)
1, DISASSEMBLY
1-1. CAGE AND BOTTOM CASE REMOVAL
Cage
Removal:
Steps
9,
80,@8,0,6,0
Bottom
Case
Removal:
Steps
@,
@,.@0,©6
cage ass’y
i
@
screw,
K2
x
35
tt,
A 9
\ eS ‘
S F a
y i
6 screw, oat<
K2 x 3.5 Ly
re |
CA
*,
Q cable
bottom case
{
b@ screw, RK3 x 10
1-2. MICROPHONE CAPSULE AND AMP CIRCUIT
BOARD REMOVAL
Microphone Capsule Removal:
Steps @,0,0,.@
Circuit Board Removal:
Steps
@.,
@,
6.
@,
7
©
@ Remove the cage ass’y.
6
two
screws,
P2
x
3
©
Loosen
screw
P2
x
&.
icroph / \ sma\:
microphone capsule
ass’y LS)
amp circuit
board (cased)
f
y,
two screws,
P2x3
@ Unsolder lead wires.
©
Carefully
remove.
Unsolder
five
lead
wires.
@ Remove amp circuit board
from the shield case.
1-3.
DC-DC
CONVERTER
REMOVAL
Steps:
@©,0,0,.0
~@_ Remove the bottom case.
DC-DC converter
© two screws,
ser @ Carefully
Fi remove.
©) Unsolder five
lead wires.
> two screws,
P2 x3
i.

1-4.
POWER
SUPPLY
CASE
REMOVAL
1-5.
POWER
SUPPLY
CIRCUIT
BOARD
REMOVAL
Remove power supply case.
screws, B3 x 4
screws, BS x 4
@ four screws,
BSx 4
2. ADJUSTMENT
BATTERY
CHECK.
METER
CALIBRATION
4.
Set
the
external
power
supply
to
aN
ue
adjust
:
R6
so
that
BATTERY
check
meter
indicates
‘‘4’,
1.
Remove
batteries
from
the
microphone
power
5.
Set
the
external
power
supply
to
5V.
supply.
7
BATTERY
check
meter
pointer
should
place
2,
Connect
an
external
regulated
dc
power
supply
on
the
dot
between
“4”
and
“6”’.
as
shown
below.
:
6.
Set
the
external
power
supply
to
6V.
3.
Turn
the
POWER
switch
of
the
microphone
BATTERY
check
meter
pointer
should
place
power
supply
on.
On
Oo
regulated dc
power supply
O
Py
red
R6
to
terminal
5
(WHT)
-
of CN2 (MIC connector}

| Q| 6519 Q3 2SK43
bo Qee -eSdec Q4 2SK23A
C1 10/35V |
a SHIELD
[C2 lO/S9V CNT
MICROPHONE | fg MIC
CAPSULE
OUTPUT
C-3D
| 42 |,
DC DC as |
ao: CONVERTER <4. 99}
fs ES eras
4.
MOUNTING
DIAGRAM
(AMP
SECTION)
-
—
Conductor
Side
—
| Q
WHT.
CNt foo SHIELD
2 CLEAR | MIC
' OUTPUT | cays =)
2 SEX
|
= | oy i403
MICROPHONE ee
a CAPSULE ee
C-3D (ho |
| ~ ORG] viol 7
, ae oo
: BRNT La aoe
e io | |
' |
BLK
V0
| LORG
| BRN
Note:
©
All
capacitors
are
in
uF
unless
otherwise
noted.
pF=uyF.
50
WV
or
less
are
not
indicated
except
for
electrolytics.
All
resistors
are
in
ohms,
“%W
unless
otherwise
noted.
kQ
=
1000.9,
MQ
=
1000k2
@. =: Chassis ground,
°
e
Voltages
are
de
with
respect
to
ground
unless
otherwise
noted.
®
Readings
are
taken
under
no
signal
conditions
with
a
VOM
(20k2/V).
©
Voltage
variations
may
be
noted
due
to
normal:
pro-
duction tolerances.
@
Ee
ee
B+
bus:
te
@.
0°28.
B+
pattern.
CAUTION
1. The amp mount ass’y has
been carefully adjusted at
the factory. If some
trouble occurs on it, re-
place the amp mount ass’y.
The parts on the amp
mounted circuit board are
not individually available,
2. Do not-short-circuit across
DC-DC convertor terminals
o.¢-and?4-- > and-. across
terminals 3 and 5,
BOARD
DC ~DC
CONVERTER

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5. SCHEMATIC DIAGRAM (POWER SUPPLY SECTION)
S2-2
POWER] TRANSFORMER |;
Se eeeelikarendii a en
(E model)
-————}
en eee etm eee ere ree
72 |,
$2-2 POWER] |
POWER] TRANSFORMER |
gee eter he en ee |
| (US model)
R Q5 2SK23A —-Q7_-2scll24 ~ :
CD2
CN2
(XLR-5-13)
| Q6 2501364
[METER =-
“Hh - D2 RD7AM ~ AGL | IR
ee 390(1/2W) a9 <i sz | F2IA ue
6. MOUNTING DIAGRAM (POWER SUPPLY SECTION)
— Conductor Side —
YEL
0.25A
R7 100K(E model)
ORG
(ames
Fe
IA
NLT
YEL a 7 WHT
BATTERY SIZE“D” Re 52 rae 3
-5-|
(IEC DESIGNATION R20) POWER
4PCS 6V DC —
= ¥ g RED 3 oie
fe RED ~
BLK i WHT
= + RED| GRY GRN
ee aS eae
oO
CJ ()
= YEL 100
_ BLU DI wT ov
| T2
| POWER
_ TRANSFORMER
a <a
} ORG 120V_~
S
C-47 C-47
BATTERY SIZE “D”
(IEC DESIGNATION R20)
4Pcs 6V DC
CN3
(XLR-3-14)
OUTPUT
.
MICROHONE
TRANSFORMER
A oO
eS
cat :
+
mm
> 8)
<
1
Naayyan
(US model)
POWER
TRANSFORMER
(E model)
Note:
Cc?
c8
C9
us
;
MICROPHONE
01
O.1
0.047
TRANSFORMER
CN3
(XLR-3-14)
OUTPUT
Replacement Semiconductors
For
replacement,
use
semiconductors
except
in
(
).
Amp Section
Q1:
6519
Q2:
2SJ22
Q3:
2SK43
G
I
pe
“3
wae
Ss
Ss
GDs
G
ub
QO4: 2SK23A
All capacitors are in wF unless otherwise noted.
pF = uwuF. 50 WV or less are not indicated except
for electrolytics.
All resistors are in ohms, “%W unless otherwise
noted. kQ = 10002, MQ = 1000kN
All variable and adjustable resistors have character-
istic curve B, unless otherwise noted.
4 : internal component.
PME + B+ bus.
[] : panel designation.
(_____| : adjustment for repair.
Voltages are dc, and are measured when plugging
microphone unit into MIC input jack in ac ope-
ration condition.
Readings are taken under no signa! conditions
with a VOM (20k2/V).
Voltage variations may be noted due to normal
production tolerances.
: B+ pattern.
DC resistance measurements are with coils connect-
ed on the circuit board, and are approximate.
Switch
TONE SELECTOR
POWER
AC-DC SELECTOR
INCLUDED IN
RELEY (RY1)
Power Supply Section
Q5: 2SK23A Q6: 2SC634A
}
Cc
Ko)
E
/ Ces
SGD
Cc ‘B
D1: CD2 D2: RD7AM
black cathode
i ‘
anode -- |— anode ‘
Oe eal
cathode «anode
(2SC1364)
es
fy
z
Ec 8
Q7: 28C1124
C
i)
&
FoR,

C-47
7, EXPLODED VIEWS
X-2522-101-0
Cage, Ass‘’y
2-522-128-00
Washer
2-503-234-00
Screw
2-503-234-00
2
2-522-128-00
Washer:
Case, lower
2-517-126-00
Bushing, free
2-522-124-00
Screw (B), support
3 Clamp, bushing
2-522-133-00
Screw, RK3 x 10
Belt, bushing
2-§22-123-00
Screw (A), support
2-5 18-102-00
Plate, serial number
2-5 16-344-00
Screw,
PM
3
x
97
2-522-136-00
Screw, arm
1-55 1-189-00
Cable, microphone,
Arm, support
w/connector
(CN1)
pp:
X-2522-108-0
Socket Ass’y
Socket, stand screw
ed e Items with no part number and/or no
description are not stocked because they
are seldom required for routine service.
e All screws are Phillips (cross recess) type
unless otherwise noted.
(—) = slotted head
C-47
2-522-134-00
-4510-010-
A-4510-010-A
Belt,
capsule
Capsule Ass’y
P2x3
A-4518-018-4
Complete Circuit Board,
emp
Frame Ass’y, upper
P2x3
2-522-127-00
Bushing
Stay, amp board Spacer, terminal board
Ring, center
Shaft, s t
Dust
cover
(B)
uppor
1-464-052-00
T2x4 DC-DC Converter
Terminal Board
Contactor,
P2x3 ground
Clamp, cable
{
| Terminal Board
C3
LW2, w/internal tooth
5 P2x3
Note:
e Items with no part number and/or no
description are not stocked because they
are seldom required for routine service.
e All screws are Phillips (cross recess) type
unless otherwise noted.
(—) = slotted head

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Holder, battery case
Heat Sink
Battery Case
LW3, w/internal tooth
Printed Circuit Board,
power supply
1-442-425-00 (US model)
1-442-988-00 {E madef}
Transfoemer, power
(F2j
1-515-184-00
3-612-023-00
Relay (RY?) : Plus Terminal
2 Bracket, power transformer
3-533-574-00
Spring, battery
1-532.265-XX
LW, wéinternal tooth Fuse, 7A (F2}
i 9-532-277-00
Fuse, 0.25 A (FT
|
|
| 2.522-152-00
i Labei (Aj, fuse !
B3x6é 2% 1 ' |
7 2-522-153-00
| Label (8), fuse
B3x6
ae
w/internal
tooth
|
~
\ <i Le 2-522-161-00 (US model)
Lug, 2mm dia. ! 2-522-165-00 (E model)
aap pias Label, specification
oe Post, fuse; UL type y :
ae ; aN 1-534-538-XX
: ae : ——< Cord, power
3-410-032-00
3 Case Ass’y, bottom Stopper, power cord
NZ
LW3, w/internal tooth
1-429.049-00
Transformer, microphone
{77)
Reinforcement
ee | 7
LW2, w/internal tooth @) cy LW2, w/internal tooth
Lock
Lid, battery case
Note:
® Items with no part number
and/or no description are not
stocked because they are
seldom required for routine
Service.
e All screws are Phillips (cross
recess) type unless otherwise
noted. (—) = slotted head
5 7 (—) = slotted head
402

8. ELECTRICAL PARTS LIST
Ref. No. Part No. Description
COMPLETE CIRCUIT BOARD
A-4518-018-A Amp
SEMICONDUCTORS
Transistors
Q5 2SK23A
= Q6 28C634A
Q7 28C1124
Diodes
D1 CD2
D2 RD7AM
TRANSFORMERS
Ti 1-429-049-00 Microphone
T2 1-442-425-00 Power (US model)
1-442-988-00 Power (E model)
CAPACITORS
All capacitors are in uF and ceramic unless otherwise noted.
50 WV or less are not indicated except for electrolytics.
pF = wuF, elect = electrolytic
C7, 8 1-108-251-12 0.1 my lar
C9 1-108-246-12 0.047 mylar
C10 1-121-984-11 2200 35V_ elect
Ciil 1-123-072-11 220 10V_ elect
RESISTORS
All resistors are in ohms. Common %4W carbon resistors are
omitted. Check schematic diagram for values.
R5 1-213-138-11 390 AW carbon
R6 1-224-647-XX 30k, adjustable
SWITCHES
Sl 1-516-597-00 | Rotary, TONE selector
$2 1-516-534-00 POWER
® => + Due to standardization, interchangeable replacements
may be substituted for parts specified in the diagrams,
—11—
Fi
F2
CN1
CN2
CN3
MEI
NLi
RY1
C47
Part No. Description
FUSES
1-532-277-00 0.25 A
1-532-265-XX 1A
MISCELLANEOUS
1-551-189-00
1-509-170-00
1-506-127-00
1-520-232-00
1-517-033-00
1-515-184-00
1-464-052-00
1-533-048-XX
1-534-538-XX
Cable, microphone output; w/connector
Connector (XLR-5-13), MIC
Connector (XLR-3-14), OUTPUT
BATTERY Meter, voltage
Neon Lamp
Relay
DC-DC Converter
Post, fuse; UL type
Cord, power
ACCESSORIES & PACKING MATERIALS
Part No.
0-110-572-04
1-532-265-XX
1-532-277-00
1-551-190-00
2-052-522-02
2-599-059-21
2-599-059-11
2-522-159-00
2-522-160-00
3-701-613-00
3-701-628-00
3-701-632-00
X-2522-107-0
Description
Screwdriver
Fuse, 1A
Fuse, 0,.25A
Cable, microphone; extension
Adaptor, screw
Manual, instruction (US model)
Manual, instruction (E model)
Carton
Cushion
Bag, plastic
Bag, plastic
Bag, plastic
Case, carrying