Sony C-100 User manual

SERVICE MANUAL
Sony Video & Sound Products Inc.
9-896-479-01
2018B33-1
© 2018.02
C-100
SPECIFICATIONS
CONDENSER MICROPHONE
US Model
Canadian Model
AEP Model
UK Model
Australian Model
Chinese Model
Ver. 1.0 2018.02
General
Type 2 Way Microphone (Condenser + Electret condenser)
Power supply External power supply operation 44 V to 52 V DC (IEC* 61938 P48)
Power consumption Less than 4.5 mA
Output connector XLR-3-12C Type
Dimensions 40 mm dia. × 175 mm (1.57 in. dia. × 6.89 in.)
Mass Approx. 290 g (10.2 oz)
Supplied accessories Cradle suspension (1)
Wind screen (1)
Stand adaptor (W3/8 - NS5/8) (1)
Carrying case (1)
Operating instructions (1)
Warranty card (1)
Performance
Frequency response 20 Hz - 50,000 Hz
Directivity Uni-directional / Omni-directional / Bi-directional (switchable)
Output impedance 90 Ω ±15%, balanced
Sensitivity -31 dB (Uni-directional)
-37 dB (Omni-directional)
-35 dB (Bi-directional)
(deviation±3 dB)
(0 dB=1 V/Pa, 1 kHz)
Inherent noise Less than 19 dB SPL (Uni-directional)
Less than 24 dB SPL (Omni-directional)
Less than 22 dB SPL (Bi-directional)
(0 dB=2 × 10-5 Pa)
(IEC* 61672-1 A-Weighted, 1 kHz, 1 Pa)
Maximum input sound pressure level
More than 132 dB SPL (Uni-directional)
More than 138 dB SPL (Omni-directional)
More than 136 dB SPL (Bi-directional)
(output level for 1% waveform distortion at 1 kHz, converted into
equivalent input sound pressure level: 0 dB=2 × 10-5 Pa)
Dynamic range More than 113 dB (Uni-directional)
More than 114 dB (Omni-directional)
More than 114 dB (Bi-directional)
PAD 0 dB/-10 dB (switchable)
LOW CUT filter Flat/70 Hz (switchable)
* IEC = International Electrotechnical Commission
Design and specifications are subject to change without notice.

C-100
2
1. SERVICING NOTES ............................................. 3
2. DISASSEMBLY
2-1. Disassembly Flow........................................................... 4
2-2. Bottom Sleeve................................................................. 5
2-3. Switch Cover (Side), Microphone Sleeve....................... 6
2-4. How to Install the Microphone Sleeve ........................... 7
2-5. Microphone Case Assy ................................................... 8
2-6. CU17 Capsule Assy ........................................................ 9
2-7. Capsule Holder (17), CU25 Capsule Assy...................... 10
2-8. Capsule Holder (25), Reflector ....................................... 11
2-9. SIDE-004 Board ............................................................. 12
2-10. SIDE-001 Board, SIDE-002 Board ................................ 13
2-11. XLR3 Connector Assy .................................................... 14
2-12. Capsule Suspension, Microphone Frame........................ 14
3. DIAGRAMS
3-1. Printed Wiring Board - SIDE-004 Board - ..................... 16
3-2. Schematic Diagram - SIDE-004 Board - ........................ 16
3-3. Printed Wiring Board - SIDE-002 Board - ..................... 17
3-4. Schematic Diagram - SIDE-002 Board - ........................ 17
3-5. Printed Wiring Board - SIDE-001 Board - ..................... 18
3-6. Schematic Diagram - SIDE-001 Board - ........................ 18
4. EXPLODED VIEWS
4-1. Case, Sleeve Section ....................................................... 19
4-2. Board, Capsule, Connector Section ................................ 20
5. ELECTRICAL PARTS LIST .............................. 21
Accessories are given in the last of the electrical parts list.
TABLE OF CONTENTS
NOTES ON CHIP COMPONENT REPLACEMENT
• Never reuse a disconnected chip component.
• Notice that the minus side of a tantalum capacitor may be dam-
aged by heat.

C-100
3
SECTION 1
SERVICING NOTES
UNLEADED SOLDER
Boards requiring use of unleaded solder are printed with the lead-
free mark (LF) indicating the solder contains no lead.
(Caution: Some printed circuit boards may not come printed with
the lead free mark due to their particular size)
: LEAD FREE MARK
Unleaded solder has the following characteristics.
• Unleaded solder melts at a temperature about 40 °C higher
than ordinary solder.
Ordinary soldering irons can be used but the iron tip has to be
applied to the solder joint for a slightly longer time.
Soldering irons using a temperature regulator should be set to
about 350 °C.
Caution: The printed pattern (copper foil) may peel away if
the heated tip is applied for too long, so be careful!
• Strong viscosity
Unleaded solder is more viscous (sticky, less prone to flow)
than ordinary solder so use caution not to let solder bridges
occur such as on IC pins, etc.
• Usable with ordinary solder
It is best to use only unleaded solder but unleaded solder may
also be added to ordinary solder.
DESTINATION ABBREVIATIONS
The following abbreviations for model destinations are used in this
service manual.
• Abbreviations
AEP : European area, East European area, CIS area (Moldova)
and Middle East area (Israel) models
AUS : Australian and New Zealand models
CH : Chinese model
CND : Canadian model
ABOUT THE REPAIRING OF BOARD
Three boards (SIDE-001 board, SIDE-002 board, SIDE-004 board)
are installed in this unit.
The slide switch (Ref. No. SW1, SW2, SW3) mounted on the SIDE-
004 board can be replaced singly. For the slide switch, refer to
“SECTION 5 ELECTRICAL PARTS LIST” on page 21.
If mounted parts other than the slide switch on the SIDE-004 board
are defective, or if the SIDE-001 board or SIDE-002 board are
defective, replace the all boards.
Schematic diagram and printed wiring board are described for ref-
erence purposes in this service manual.
ABOUT THE REPLACING OF BOARD
The SIDE-001 board, SIDE-002 board and SIDE-004 board are
repair parts as a unit of three boards together, whose voltage ad-
justed at the factory.
Therefore, if it is necessary to replace one of the boards of SIDE-
001 board, SIDE-002 board or SIDE-004 board, be sure to replace
three boards at the same time.
JIG FOR DISASSEMBLING/ASSEMBLING
If it is difficult to attaching or removing the bottom sleeve, please
use a screw cap opener (available on the market) etc.
Note: A screw cap opener of available on the market has various shapes.
Select and use one that fits the shape of the bottom sleeve that will
not scratch this unit.
(The figure below is for reference.)
IMPORTANT NOTE OF AFTER THE REPAIRING COM-
PLETION
After the repair of this unit is completed, be sure to check the op-
eration performance before returning the product to the customer.
Confirm with each service headquarters for checking method.
The SERVICING NOTES contains important information for servicing. Be sure to read this section before repairing the unit.

C-100
4
SECTION 2
DISASSEMBLY
• This set can be disassembled in the order shown below.
2-1. DISASSEMBLY FLOW
SET
2-3. SWITCH COVER (SIDE),
MICROPHONE SLEEVE
(Page 6)
2-5. MICROPHONE CASE ASSY
(Page 8)
2-2. BOTTOM SLEEVE
(Page 5)
2-6. CU17 CAPSULE ASSY
(Page 9)
2-9. SIDE-004 BOARD
(Page 12)
2-11. XLR3 CONNECTOR ASSY
(Page 14)
2-12. CAPSULE SUSPENSION,
MICROPHONE FRAME
(Page 14)
2-7. CAPSULE HOLDER (17),
CU25 CAPSULE ASSY
(Page 10)
2-8. CAPSULE HOLDER (25),
REFLECTOR
(Page 11)
2-10. SIDE-001 BOARD,
SIDE-002 BOARD
(Page 13)
2-4. HOW TO INSTALL THE MICROPHONE SLEEVE
(Page 7)
Note: After the repair of this unit is completed, be sure to check the operation
performance before returning the product to the customer.
Confirm with each service headquarters for checking method.

C-100
5
Note: Follow the disassembly procedure in the numerical order given.
2-2. BOTTOM SLEEVE
Screw Cap Opener
Please use to available on the market.
(The figure below is for reference.)
1Put the loop of the belt on the bottom sleeve,
firmly tighten and rotate.
Note 2: The bottom sleeve firmly secured in place
with bond. When using a jig, please work
carefully so as not to damage the model
number label and bottom sleeve.
bottom
sleeve
connector side
capsule side
logo side
model number label
2Remove the bottom sleeve block
in the direction of the arrow.
3DVWLQJSRVLWLRQRIWKHPRGHOQXPEHUODEHO
Note 3: Install the bottom sleeve to the unit before
affixing the model number label.
switch knob
Affixing area.
Affix the model number label within the
affixing area while aligning the hyphen
of the model name with the center of
the switch knob.
capsule
side
model number label
(Printing of model number label
is different in destination.)
3model number label
1RWHDERXWLQVWDOOLQJWKHERWWRPVOHHYH
bottom sleeve
Allow one pitch on the screw to remain and apply
bond (LOCTITE 243 or equivalent) to secure the
bottom sleeve.
–6LGHYLHZ–
guide line
guide line
connector side
4bottom sleeve
Note 4: When installing the bottom sleeve,
tighten so that the bottom sleeve
does not become loose.
tightening torque:1P
Apply bond.
2 mm or more
Note 1: For information about using the Screw Cap
Opener, refer to the manual for the Screw
Cap Opener.

C-100
6
2-3. SWITCH COVER (SIDE), MICROPHONE SLEEVE
OK NG
– Top view –
center overlap
1screw (M1.7) (L = 4.0 mm)
Note 1: When tightening screw, tighten
the below torque value.
tightening torque:1P
connector side
capsule side
logo side
2Pull out the microphone
sleeve block in the direction
of the arrow.
Note 2: When installing the screw, tighten it
straight so that it does not overlap
 WKHPLFURSKRQHVOHHYHHGJH
3switch cover (side)
Note 3: When installing the switch cover (side),
refer to “HOW TO INSTALL THE
MICROPHONE SLEEVE” on page 7.
4microphone sleeve
Note 4::KHQLQVWDOOLQJWKHPLFURSKRQHVOHHYH
refer to “HOW TO INSTALL THE
MICROPHONE SLEEVE” on page 7.
3switch cover (side)
Note 3: When installing the switch cover (side),
refer to “HOW TO INSTALL THE
MICROPHONE SLEEVE” on page 7.
3switch cover (side)
Note 3: When installing the switch cover (side),
refer to “HOW TO INSTALL THE
MICROPHONE SLEEVE” on page 7.
screw screw
microphone sleeve edge

C-100
7
2-4. HOW TO INSTALL THE MICROPHONE SLEEVE
switch cover (side)
microphone sleeve
connector side
capsule side knob
switch cover (side)
tape
screw
screw hole
nut
microphone sleeve block tape tape
tape
knob
1Install the switch cover (side) to
the microphone sleeve from the
inside.
2Slide the knob all the way in the direction
of the arrow and hold it so it does not fall.
3Affix tape from the outside to secure
the switch cover (side) so that it
does not fall.
4Check that the switch cover (side) does
not fall by releasing your finger.
Note 1: Repeat steps 1to 4
for all 3 locations.
6Align the screw, nut, and screw hole, and
install the microphone sleeve block in the
direction of the arrow while making sure
that the switch cover (side) does not fall.
Note 2: When installing the microphone sleeve
block, install so that you do not touch
the microphone frame, board, or nut.
7Remove the tape affixed in step 3.
(All 3 locations)
8Slide the knob left and right to check
that the slide switch is securely
installed to the switch cover (side).
(All 3 locations)
microphone
frame
5Slide the slide switch all
the way in the direction
of the arrow.
(All 3 locations)
three sheets
Note 3: When installing the microphone
sleeve block, take care so that
the sheet is not turned up.

C-100
8
2-5. MICROPHONE CASE ASSY
2screw (M1.7)
(L = 4.0 mm)
(See Fig. A)
Note 2: When installing screws, follow the installing
procedure in the numerical order given.
tightening torque:1P
+RZWRLQVWDOOWKHVFUHZ0/ PP
)LJ$!
capsule side
Rotate in the direction
of the arrow until the
screw faces straight up.
connector
side
capsule side
logo side
logo side
logo side
logo side
1sheet 2screw (M1.7)
(L = 4.0 mm)
(See Fig. A)
2screw (M1.7)
(L = 4.0 mm)
(See Fig. A)
1sheet
1sheet
sheet
screw (M1.7)
capsule side
–6LGHYLHZ–
Rotate in the direction
of the arrow until the
screw faces straight up.
4microphone case assy
Note 1: Check that there are no wires on
the capsule side before installing
the microphone case assy.
sheet
screw (M1.7)
capsule side
–6LGHYLHZ–
sheet
screw (M1.7)
capsule side
–6LGHYLHZ–
3
3DVWLQJSRVLWLRQRIWKHVKHHW
guide line
(screw center)
guide line
(screw center)
guide line
(screw center)
3DVWLQJSRVLWLRQRIWKHVKHHW
3DVWLQJSRVLWLRQRIWKHVKHHW
'RQRWWRXFKSRUWLRQ
–5HDU––)URQW––/HIW––5LJKW–
Do not touch the portions within the dotted lines in the figure
below (including the wires connected to the capsule) with
your bare hands. If you do so, wipe your hands with alcohol.
&$87,21!
Make sure you do not touch these parts. If you do so, you
will not be able to use these parts. Make sure to replace
them with new parts.
$UHDRISURKLELWHGFRQWDFWZLWKEDUHKDQGV!
Includes the capsule side portion and wire portion.
123

C-100
9
2-6. CU17 CAPSULE ASSY
1 2
connector side
capsule side
SIDE-002 board side
3lug
Note 1: When installing screws, follow the installing
procedure in the numerical order given.
tightening torque:1P
+RZWRLQVWDOOWKHORFNDFHVFUHZ0DQG:LUHVHWWLQJ
)LJ%!
SIDE-002
board side
1terminal
2lock ace screw (M1.4)
(L = 3.0 mm) (See Fig. B)
Note 3: When removing screw, it is not reused.
Be sure to replace them with new parts.
4CU17 capsule assy
capsule
holder (17)
Catch the wire onto the capsule holder (17).
:LUHVHWWLQJ
CU17 capsule assy
–6LGHYLHZ––6LGHYLHZ–
connector
side
connector
side
CU17 capsule
assy
Note 2: Align the lug with the groove
of the capsule holder (17) and
install.
2lock ace screw (M1.4)
(L = 3.0 mm) (See Fig. B)
Note 3: When removing screw,
it is not reused.
Be sure to replace them
with new parts.
After installing the
two screws, refer to
"Wire setting" and
arrange the wire.
'RQRWWRXFKSRUWLRQ
–5HDU––)URQW––/HIW––5LJKW–
Do not touch the portions within the dotted lines in the figure
below (including the wires connected to the capsule) with
your bare hands. If you do so, wipe your hands with alcohol.
&$87,21!
Make sure you do not touch these parts. If you do so, you
will not be able to use these parts. Make sure to replace
them with new parts.
$UHDRISURKLELWHGFRQWDFWZLWKEDUHKDQGV!
Includes the capsule side portion and wire portion.
CAUTION
Take care so that you do not damage the CU17 capsule assy
with the wire terminal, etc. If you damage the CU17 capsule
assy, replace it with a new part.

C-100
10
2-7. CAPSULE HOLDER (17), CU25 CAPSULE ASSY
1
2
connector side
capsule side
SIDE-001 board side
1two lock ace screws (M1.4) (L = 3.0 mm)
Note 1: When removing screws, it is not reused.
Be sure to replace them with new parts.
Note 2: When tightening screws, tighten
the below torque value.
tightening torque:1P
2capsule
holder (17)
3Remove the solder of short wire.
[black] (See Fig. C, H)
< Fig. C >
:LUHVHWWLQJ
short wire [black]
CU25 capsule assy
long wire
[black]
3Remove the solder of short wire.
[black] (See Fig. D, H)
< Fig. D >
4screw (M1.4 u3.5 mm)
(See Fig. E)
short wire [black]
long wire
[black]
CU25 capsule assy SIDE-001
board side
SIDE-002
board side
Note 3: When installing screws, follow the installing
procedure in the numerical order given.
tightening torque:1P
+RZWRLQVWDOOWKHVFUHZ0[PP
< Fig. E >
SIDE-001
board side
SIDE-001
board side
CU25 capsule assy
CU25 capsule assy
–6LGHYLHZ–
–6LGHYLHZ–
4screw (M1.4 u3.5 mm)
(See Fig. E)
5CU25 capsule assy
Note 4: Do not touch with your bare hands.
If this part is touched with bare
hands or if it is dirty, make sure to
wipe it with alcohol.
guide line
Note 6: Solder within the guide line.
guide line
Solder [black]
lug
)LJ+!
3Remove the silicone, and then
remove the solder of the long wire.
[black] (See Fig. D, H)
Note 5: Attaching the silicone is not
necessary when assembling.
3Remove the silicone, and then
remove the solder of the long wire.
[black] (See Fig. C, H)
Note 5: Attaching the silicone is not
necessary when assembling.
'RQRWWRXFKSRUWLRQ
–5HDU––)URQW––/HIW––5LJKW–
Do not touch the portions within the dotted lines in the figure
below (including the wires connected to the capsule) with
your bare hands. If you do so, wipe your hands with alcohol.
< CAUTION >
Make sure you do not touch these parts. If you do so, you
will not be able to use these parts. Make sure to replace
them with new parts.
$UHDRISURKLELWHGFRQWDFWZLWKEDUHKDQGV!
Includes the capsule side portion and wire portion.
CAUTION
Take care so that you do not damage the CU25 capsule assy
with the wire terminal, etc. If you damage the CU25 capsule
assy, replace it with a new part. Also, take care so that solder
droplets do not attach to the CU25 capsule assy.

C-100
11
2-8. CAPSULE HOLDER (25), REFLECTOR
connector side
capsule side
SIDE-001 board side
1arock precision screw (P2.6 u5)
Note 1: When removing screw, it is not reused.
Be sure to replace them with new parts.
Note 2: When tightening screw, tighten
the below torque value.
tightening torque:1P
2capsule holder (25)
(See Fig. F)
5sheet (SW)
3screw (M1.7) (L = 4.0 mm)
Note 3: When tightening screw, tighten
the below torque value.
tightening torque:1P
3screw (M1.7) (L = 4.0 mm)
Note 3: When tightening screw, tighten
the below torque value.
tightening torque:1P
4Remove the reflector block
in the direction of the arrow.
5sheet (SW)
6reflector
Note 4: When installing the reflector,
align the rib and slide switch. slide switch
rib
5sheet
(SW)
+RZWRLQVWDOOWKHFDSVXOHKROGHU
capsule
holder (25)
)LJ)!
capsule
suspension
–7RSYLHZ–
When installing the capsule holder (25), align the shape
of the capsule suspension and the screw holes.
–%RWWRPYLHZ–
screw hole
screw hole
3DVWLQJSRVLWLRQRIWKHVKHHW6:
3DVWLQJSRVLWLRQRIWKHVKHHW6:
guide line (edge)
reflector
sheet (SW)
guide line (edge)
sheet (SW)
guide line (edge)
reflector
sheet (SW)
capsule side
capsule
side
–6LGHYLHZ–
–6LGHYLHZ–

C-100
12
2-9. SIDE-004 BOARD
6Remove the solder
of wire. [black]
4Remove the solder
of wire. [gray]
5terminal
2Remove the five
solders of wire.
1Remove the two
solders of wire.
7lug
boss
connector side
capsule side
SIDE-002 board side
SIDE-001 board
notch
8SIDE-004 board
Note 4: When installing the SIDE-004
board, align the boss and notch,
and take care so that the wires
do not get pinched.
– Side view –
capsule side
guide line
microphone frame
– Top view –
SIDE-001 board
SIDE-004 board
wire [white]
SIDE-004 board
wire [black]
SIDE-004 board
wire [yellow]
SIDE-004 board
wire [red]
SIDE-004 board
wire [blue]
:LUHVHWWLQJ
capsule side
guide line
Note 3: Set the wires so that they are not higher
than the microphone frame.
Note 6: Solder within the
guide line.
Note 7: When soldering, make sure that
the solder does not go around to
the back side.
guide line
Solder
[black] Solder
[gray]
lug terminal
3
:LUHVHWWLQJ
SIDE-004 board
wire [purple]
SIDE-004 board
wire [brown]
SIDE-002 board
capsule
side –%RWWRPYLHZ–
Note 5: Set the wires so that they
do not crossover or touch
the microphone frame.
microphone frame
Note 8: The wires must not touch the microphone frame.
microphone
frame
Note 1: The SIDE-001 board, SIDE-002 board and SIDE-004 board
are repair parts as a unit of three boards together, whose volt-
age adjusted at the factory.
Therefore, if it is necessary to replace one of the boards of
SIDE-001 board, SIDE-002 board or SIDE-004 board, be sure
to replace three boards at the same time.
Note 2: The slide switch mounted on the SIDE-004 board can be
replaced singly. For the slide switch, refer to “SECTION 5
ELECTRICAL PARTS LIST” on page 21.

C-100
13
2-10. SIDE-001 BOARD, SIDE-002 BOARD
1Remove the three solders
of connector wire.
(See Fig. G)
2Remove the two solders
of SIDE-002 board wire.
(See Fig. G)
< Fig. G >
:LUHVHWWLQJ
3two screws (M1.7) (L = 4.0 mm)
Note 2: When tightening screws, tighten
the below torque value.
tightening torque:1P
4SIDE-001 board
connector side
capsule side
SIDE-002 board side
connector
side
capsule side
SIDE-001 board side
SIDE-002 board
wire [black]
SIDE-002 board
wire [orange]
connector
wire [red]
connector
wire [black]
microphone frame
Gap.
connector
wire [white]
connector side
connector side
–7RSYLHZ–
–7RSYLHZ–
SIDE-001 board
SIDE-002 board
5two screws (M1.7) (L = 4.0 mm)
Note 2: When tightening screws, tighten
the below torque value.
tightening torque:1P
6SIDE-002 board
8shield plate
7Draw the wire out of gap the SIDE-002
board and microphone frame.
:LUHVHWWLQJ
Note 3: Set the wires so that they do not crossover.
Pass the wire a gap the SIDE-002 board
and microphone frame.
Turn over.
Note 1: The SIDE-001 board, SIDE-002 board and SIDE-004 board
are repair parts as a unit of three boards together, whose volt-
age adjusted at the factory.
Therefore, if it is necessary to replace one of the boards of
SIDE-001 board, SIDE-002 board or SIDE-004 board, be sure
to replace three boards at the same time.

C-100
14
2-11. XLR3 CONNECTOR ASSY
connector side
capsule side
1screw
(Supplied with XLR3 connector assy)
Note 1: This screw is fixed with bond.
When installing this screw, first apply
bond (LOCTITE 243 or equivalent) to it.
Note 2: When tightening screw, tighten
the below torque value.
tightening torque:1P
3ferrite bead
5XLR3 connector assy
Note 3: When installing the XLR3 connector
assy, align the slit and protrusion.
slit
protrusion
4ferrite bead
2Remove the connector block
in the direction of the arrow.
2-12. CAPSULE SUSPENSION, MICROPHONE FRAME
2capsule suspension
4microphone frame
3cushion
(conductive)
(See Fig. H)
cushion
(conductive)
cushion
(conductive)
3cushion
(conductive)
(See Fig. H)
1screw (PSW3 u5)
Note: When tightening screw, tighten
the below torque value.
tightening torque:1P
connector side
capsule side
,QVWDOODWLRQGLUHFWLRQIRUWKHFDSVXOHVXVSHQVLRQ
short
long
wide
narrow
–7RSYLHZ–
microphone frame
hole
–6LGHYLHZ–
When installing the capsule suspension, align it with
the hole of the microphone frame.
3DVWLQJSRVLWLRQRIWKHFXVKLRQFRQGXFWLYH
Affix the end of the cushion
(conductive) to this area.
Affix the end of the cushion
(conductive) to this area.
)LJ+!

C-100
15
SECTION 3
DIAGRAMS
THIS NOTE IS COMMON FOR PRINTED WIRING BOARDS AND SCHEMATIC DIAGRAMS.
(In addition to this, the necessary note is printed in each block.)
For Printed Wiring Boards.
Note:
• X: Parts extracted from the component side.
• Y: Parts extracted from the conductor side.
• : Pattern from the side which enables seeing.
(The other layers’ patterns are not indicated.)
Caution:
Pattern face side:
(SIDE B)
Parts face side:
(SIDE A)
Parts on the pattern face side seen
from the pattern face are indicated.
Parts on the parts face side seen from
the parts face are indicated.
• Indication of transistor.
C
B
These are omitted.
E
Q
For Schematic Diagrams.
Note:
• All capacitors are in μF unless otherwise noted. (p: pF)
50 WV or less are not indicated except for electrolytics
and tantalums.
• All resistors are in Ωand 1/4 W or less unless otherwise
specified.
• C: Panel designation.
• A: B+ Line.
• Signal path.
F: MIC
J: MIC (directibity - Omni directinal)
f: MIC (directibity - Bi directional)
Note 1: Three boards (SIDE-001 board, SIDE-002 board,
SIDE-004 board) are installed in this unit.
The slide switch (Ref. No. SW1, SW2, SW3) mount-
ed on the SIDE-004 board can be replaced singly. For
the slide switch, refer to “SECTION 5 ELECTRI-
CAL PARTS LIST” on page 21.
If mounted parts other than the slide switch on the
SIDE-004 board are defective, or if the SIDE-001
board or SIDE-002 board are defective, replace the
all boards.
Schematic diagram and printed wiring board are de-
scribed for reference purposes in this service manual.
Note 2: The SIDE-001 board, SIDE-002 board and SIDE-
004 board are repair parts as a unit of three boards
together, whose voltage adjusted at the factory.
Therefore, if it is necessary to replace one of the
boards of SIDE-001 board, SIDE-002 board or
SIDE-004 board, be sure to replace three boards at
the same time.
Note 1: Three boards (SIDE-001 board, SIDE-002 board,
SIDE-004 board) are installed in this unit.
The slide switch (Ref. No. SW1, SW2, SW3) mount-
ed on the SIDE-004 board can be replaced singly. For
the slide switch, refer to “SECTION 5 ELECTRI-
CAL PARTS LIST” on page 21.
If mounted parts other than the slide switch on the
SIDE-004 board are defective, or if the SIDE-001
board or SIDE-002 board are defective, replace the
all boards.
Schematic diagram and printed wiring board are de-
scribed for reference purposes in this service manual.
Note 2: The SIDE-001 board, SIDE-002 board and SIDE-
004 board are repair parts as a unit of three boards
together, whose voltage adjusted at the factory.
Therefore, if it is necessary to replace one of the
boards of SIDE-001 board, SIDE-002 board or
SIDE-004 board, be sure to replace three boards at
the same time.

C-100
16
3-1. PRINTED WIRING BOARD - SIDE-004 Board - • : Uses unleaded solder.
C101
CL005
CL006
CL011
CL012
CL013
CL014
CL018
CL019 CL020
C153
C155
R101
R102
R103
R104
C102
R151
CL001
R152
CL002
CL003
R154
R155
R156
CL007
CL008
CL009
CL010
C154
SW2
(Directivity (Polar pattern))
C151
C152
SW3 SW1
Q101
Q151
SIDE-004 BOARD (SIDE A)
SIDE-004 BOARD (SIDE B)
1-983-333-
11
(11) 1-983-333-
11
(11)
LOW CUTNORMAL
LOW CUT
0 dB–10 dB
PAD
PUR
BRW
SIDE-002
BOARD
>01P
CU17 CAPSULE
ASSY (1/2)
RED
GRY
GG
S
S
D
D
BLK
BLK
BLU
YEL
WHT
SIDE-001
BOARD
>02P
CU25 CAPSULE
ASSY
A
B
C
1 2 3 4 5
BLK
BLK
BLK
BLK
CU17 CAPSULE
ASSY (2/2)
3-2. SCHEMATIC DIAGRAM - SIDE-004 Board -
2SK208R-TE85L
Q101
2SK208R-TE85L
Q151
CL008
CL009
CL010
CL001
CL002
CL007
CL018 CL019 CL020 CL003
CL005
CL006
CL013
CL014
CL011
CL012
100V
0.47
C101
630V
180p
C153
250V
470p
C152
250V
1p
C155
10k
R156
4.7k
R152
2000M
R151
2000M
R155
2000M
R154
250V
470p
C151
250V
1p
C154
0.0047
C102
22k
R103
4.7k
R104
2000M
R101
470
R102
SIDE-004 BOARD
PAD
SW1
0 dB
-10 dB
LOW CUT
SW3
NORMAL LOW CUT
S
S
IMPEDANCE
CONVERTER
(Directivity (Polar pattern))
SW2
CU17 CAPSULE
ASSY
CU25 CAPSULE
ASSY
1
C
D
6
E
2
B
3
A
45 7
3
4
6
5
7
1
2
BOARD
SIDE-001
>02S
BOARD
SIDE-002
>01S
IMPEDANCE
CONVERTER
Note: The slide switch (Ref. No. SW1, SW2, SW3) mounted
on the SIDE-004 board can be replaced singly. For
the slide switch, refer to “SECTION 5 ELECTRICAL
PARTS LIST” on page 21.
(Page 17)
(Page 18)
(Page 18)
(Page 17)

C-100
C-100
1717
3-3. PRINTED WIRING BOARD - SIDE-002 Board - • : Uses unleaded solder.
5
4
1
3
15
10 6
TP501
TP502
TP503
TP511
TP512
Q501
Q502
L503
R502R514
R504
R505
CL001CL003
CL004
CL005
C502
CL006
C503
C504
TH501
C505 C506
C507
C522
VR501
IC501
T501
TP504
TP505 TP506
L501
R501
R506 R507
R508 R509
R510
R511 R512
R513
C501
C508 C509C510 C511
C512 C513
C514 C515
C516 C517
C518 C519 C520 C521
C523
C524
D502 D503 D505 D504
K
K
KKK
AAAAKKK
AAAA
SIDE-002 BOARD (SIDE A) SIDE-002 BOARD (SIDE B)
1-983-335-
11
(11) 1-983-335-
11
(11)
E
E
BRW PUR
SIDE-004
BOARD
>01P
6
T501
10
51
–
BLK
ORG
SIDE-001
BOARD
>03P
A
B
C
12345
3-4. SCHEMATIC DIAGRAM - SIDE-002 Board -
220uH
L503 T501
6
7
1
2
3
4
5
8
9
10
TH501
XC6216C202MR-G
IC501
VIN
1
VSS
2
VOFB
3
CE
4
VOUT
5
100uH
L501 TP502
CL001
2.2
C501
2.2
C503
2.2
C523
100V
0.47
C524
35V
100
C502
15k
R502
100k
VR501
150k
R504
82k
R514
1
C504
35V
100
C505
25V
220
C506
250V
2200p
C507
1
C522
750k
R505
1SS306-TE85L
D502
100V
0.47
C508
100V
0.47
C512
TP504
2SC4117-GRBL-TE85L
Q501
2SC4117-GRBL-TE85L
Q502
TP503
TP505
100V
0.47
C514
100V
0.47
C510
1SS306-TE85L
D504
1M
R508
51M
R510
51M
R511
3.3M
R506
250V
0.22
C518
250V
0.22
C520
250V
0.22
C516
TP511
CL004
CL005
TP501
250V
0.22
C519
250V
0.22
C521
250V
0.22
C517
TP512
CL006
TP506
3.3M
R507
51M
R512
51M
R513
1M
R509
1SS306-TE85L
D505
1SS306-TE85L
D503
100V
0.47
C511
100V
0.47
C515
100V
0.47
C513
100V
0.47
C509
CL003 12k
R501
ADJUSTABLE REGULATOR
IC501
DC/DC CONVERTER
TRANSFORMER
SIDE-002 BOARD
DC/DC CONVERTER
DC/DC CONVERTER
1
2
BOARD
SIDE-004
>01S
8
9
BOARD
SIDE-001
>03S
10 11 12 131
C
D
6
E
2
B
3
A
45 789
(Page 18)
(Page 16)
(Page 18)
(Page 16)

C-100
C-100
1818
3-5. PRINTED WIRING BOARD - SIDE-001 Board - • : Uses unleaded solder.
TP301
TP302
TP303
Q303
R305
R306
R307
R308
HOT
C304
C305
C306
C307
C309
CL004CL005 CL006CL007CL008
C310
CL009
C311
C312
C313
CL010
CL011
D304
COLD
GND
C201
C203
C204
C205
C206
R251
R252
R253
R254
C251
C252
C253
C254
C255
Q301 Q302
L301 L302
R301 R302
R303 R304
C301
C302
C303
C308
TP201
TP202
TP203
Q202 TP251
D301
TP252
D302
TP253
Q251
R201
R204
R205
R206
SIDE-001 BOARD (SIDE A)
SIDE-001 BOARD (SIDE B)
1-983-334-
11
(11)
1-983-334-
11
(11)
E
K
A
D
G
G
S
D
S
EE
KAKA
21
3
CN1
ORG
RED
WHT
BLK
BLK
SIDE-002
BOARD
>03P
BLU YEL RED WHT BLK
SIDE-004
BOARD
>02P
A
B
C
1 2 3 4
3-6. SCHEMATIC DIAGRAM - SIDE-001 Board -
2SK208R-TE85L
Q251
2SK208R-TE85L
Q202
1
C253
3.3
C251
0.015
C252
330k
R251
1M
R253
150k
R252
27k
R254
CL005
CL006
TP251
CL004
100V
0.22
C254
250V
1000p
C204
250V
1000p
C203
100V
0.22
C205
250V
1000p
C201
3.9k
R204
24k
R205
27k
R206
9.1k
R201
TP202
TP302
TP201
CL008
CL009
CL007
TP303
2SC4116YG-TE85L
Q303
100V
0.22
C311
2.2
C313
35V
68
C312
35V
100
C304
35V
47
C306
35V
47
C307
50V
33
C305
22k
R306
3.3k
R305
TP301TP203 100
R308
1M
R303
100
R307
2.2
C309
3.3
C206
35V
47
C310
DZ2J300M0L
D304
1SS387-TPL3
D301
100V
100p
C302
100V
100p
C301
2.2
C308
3.3
C255
1SS387-TPL3
D302 22
R302
1M
R304
22
R301
2SA1587-GRBL-TE85L
Q301
2SA1587-GRBL-TE85L
Q302
TP253
CL010
COLD
HOT 250V
0.001
C303
TP252
CL011
GND
47uH
L302 47uH
L301
SIDE-001 BOARD
21
CN1
9
8
BOARD
SIDE-002
>03S
RIPPLE FILTER
EMITTER FOLLOWEREMITTER FOLLOWER
BUFFER AMP FILTER
SS
63V
63V63V
5
7
BOARD
SIDE-004
>02S
6
4
3
1
C
D
6
E
2
B
3
A
45 78 9
3
(Page 16)
(Page 17)
(Page 16)
(Page 17)

19
C-100
SECTION 4
EXPLODED VIEWS
Note:
• -XX and -X mean standardized parts, so
they may have some difference from the
original one.
• Items marked “*” are not stocked since
they are seldom required for routine ser-
vice. Some delay should be anticipated
when ordering these items.
• The mechanical parts with no reference
number in the exploded views are not sup-
plied.
• Color Indication of Appearance Parts Ex-
ample:
KNOB, BALANCE (WHITE) . . . (RED)

Parts Color Cabinet’s Color
4-1. CASE, SLEEVE SECTION
not supplied
(model number label)
1
7
73
2
3
4
4
4
3
3
5
6
6
6
board, capsule,
connector section
Note: Do not touch with your bare hands.
If this part is touched with bare
hands or if it is dirty, make sure to
wipe it with alcohol.
1 4-727-879-02 SLEEVE, BOTTOM
2 4-727-875-01 SLEEVE, MICROPHONE
3 2-635-562-31 SCREW (M1.7) (L = 4.0 mm)
4 4-727-882-01 COVER (SIDE), SWITCH
5 X-2596-760-1 CASE ASSY, MICROPHONE (SV)
(Including Mesh, Top screen, Copper leaf sheet)
6 4-737-655-01 SHEET
7 4-566-675-01 CUSHION (CONDUCTIVE)
Ref. No. Part No. Description Remark Ref. No. Part No. Description Remark

20
C-100
4-2. BOARD, CAPSULE, CONNECTOR SECTION
C
C
A
A
B
B
E
E
D
D
CN1
SIDE-004 board
(See Note 1, 2)
SIDE-001 board
(See Note 1)
SIDE-002 board
(See Note 1)
FB2
FB1
#1
supplied with CN1
not supplied
not supplied
52
52
52
52
52
52
51
53
54
55
56
57
(See Note 3)
55
55
55
58
(See Note 3)
59
60
60
61
62
64
64
64
63
Note 1: The SIDE-001 board, SIDE-002 board and SIDE-004 board
are repair parts as a unit of three boards together, whose volt-
age adjusted at the factory.
Therefore, if it is necessary to replace one of the boards of
SIDE-001 board, SIDE-002 board or SIDE-004 board, be sure
to replace three boards at the same time.
Note 2: The slide switch mounted on the SIDE-004 board can be
replaced singly. For the slide switch, refer to “SECTION 5
ELECTRICAL PARTS LIST” on page 21.
Note 3: Do not touch with your bare hands. If this part is touched with
bare hands or if it is dirty, make sure to wipe it with alcohol.
51 3-694-181-02 TYPE1, AROCK PRECISION +P2.6X5 (See Note 4)
52 2-635-562-31 SCREW (M1.7) (L = 4.0 mm)
53 4-731-874-01 SUSPENSION, CAPSULE
54 X-2596-759-1 PC BOARD ASSY (SV) (Including SIDE-001 board,
SIDE-002 board, SIDE-004 board, Sub harnesses,
Wires, Shield sheet, Adhesive tape) (See Note 1, 2)
55 3-084-150-22 SCREW (M1.4), LOCK ACE, P2 (L = 3.0 mm)
(See Note 4)
56 4-727-877-01 HOLDER (17), CAPSULE
57 A-2201-353-A CAPSULE ASSY, CU17 (See Note 3)
58 A-2201-352-A CAPSULE ASSY, CU25 (See Note 3)
59 4-727-881-01 HOLDER (25), CAPSULE
60 2-542-942-01 SCREW (M1.4X3.5 mm)
61 2-044-301-01 LUG
62 4-727-876-01 REFLECTOR
63 2-523-713-00 TERMINAL
64 4-736-561-01 SHEET (SW)
CN1 X-2596-761-1 CONNECTOR ASSY, XLR3 (SV)
(Including Screw, 3 wires, Earth plate)
FB1 1-543-298-11 BEAD, FERRITE
FB2 1-543-298-11 BEAD, FERRITE
#1 7-682-946-09 SCREW +PSW 3X5
Ref. No. Part No. Description Remark Ref. No. Part No. Description Remark
Note 4: When removing screws, it is not reused. Be sure to replace
them with new parts.