Sony WH-CH700N User manual

SERVICE MANUAL
Sony Video & Sound Products Inc.
9-896-470-01
2017L33-1
© 2017.12
WH-CH700N
SPECIFICATIONS
WIRELESS NOISE CANCELING STEREO HEADSET
US Model
Canadian Model
AEP Model
UK Model
E Model
Australian Model
Chinese Model
Tourist Model
Ver. 1.0 2017.12
(CH)
General
Communication system: Bluetooth Specication version 4.1
Output: Bluetooth Specication Power Class 2
Maximum communication range: Line of sight approx. 10 m
1)
Frequency band: 2.4 GHz band (2.4000 GHz - 2.4835 GHz)
Compatible Bluetooth proles2):
A2DP (Advanced Audio Distribution Prole)
(30 ft)
AVRCP (Audio Video Remote Control Prole)
HFP (Hands-free Prole)
HSP (Headset Prole)
Supported Codec3):SBC4) , AAC5) , aptX, aptX HD
Supported content protection method: SCMS-T
Transmission range (A2DP):
Included items:
Wireless noise canceling stereo headset (1)
20 Hz - 20,000 Hz (Sampling frequency 44.1 kHz)
Micro-USB cable (approx. 50 cm (19 3/4 in.)) (1)
Headphone cable (approx.1.2 m (47 1/4 in.)) (1)
Reference Guide (1)
Operating Instructions (1)
Other documents (1 set) (US, CND, AEP, UK, CH, LA only)
1) The actual range will vary depending on factors such as
obstacles between devices, magnetic elds around a microwave
oven, static electricity, reception sensitivity, antenna’s
performance, operating system, software application, etc.
2) Bluetooth standard proles indicate the purpose of Bluetooth
communications between devices.
3) Codec: Audio signal compression and conversion format
4) Subband Codec
5) Advanced Audio Coding
Wireless noise canceling stereo
headset
Power source:
DC 3.65 V:Built-in lithium-ion rechargeable battery
DC 5 V: When charged using USB
Mass: Approx.240 g (8.47 oz)
Operating temperature: 0 °C to 40 °C (32 °F to 104 °F)
Usage hours:
When connecting via the Bluetooth device
Music playback time:
Max. 35 hours (NC ON),Max. 40 hours (NC OFF)
Communication time:
Max. 35 hours (NC ON),Max. 40 hours (NC OFF)
Standby time:
Max. 35 hours (NC ON),Max. 200 hours (NC OFF)
When connecting via the headphone cable with NC ON:
Max. 50 hours
Note: Usage hours may be shorter depending on the Codec
and the conditions of use.
Charging time:
Approx. 7 hours
(About 60 minutes of music playback is possible after
10 minutes charging.)
Note: Charging and usage hours may be dierent depending
on the conditions of use.
Charging temperature: 5 °C to 35 °C (41 °F to 95 °F)
Receiver
Type: Closed, Dynamic
Driver unit: 40 mm
Frequency response:
7 Hz - 20,000 Hz (JEITA) (when connecting via the headphone
cable with the unit turned on)
Impedance:
22 Ω (1 kHz) (when connecting via the headphone cable with
the unit turned on)
48 Ω (1 kHz) (when connecting via the headphone cable with
the unit turned o)
Sensitivity:
97 dB/mW (when connecting via the headphone cable with
the unit turned on)
98 dB/mW (when connecting via the headphone cable with
the unit turned o)
Microphone
Type: Electret condenser
Directivity: Omni directional
Eective frequency range: 50 Hz - 8,000 Hz
System requirements for battery
charge using USB
USB AC adaptor
A commercially available USB AC adaptor capable of feeding in
more than 0.5 A (500 mA)
Personal Computer
(As of December 2017)
Personal Computer with pre-installed with any of the following
operating systems and USB port:
Operating Systems
(when using Windows)
Windows®®
10 Pro
Windows®®
8.1 Pro
Windows®®
8 Pro
Windows®7
8 / Windows
8.1 / Windows
10 Home / Windows
Home Basic / Home Premium / Professional / Ultimate
(when using Mac)
Mac OS X (version 10.9 or later)
Design and specications are subject to change without notice.
Rated power consumption (Except US, CND, LA): 1.2W
Operating frequency (AEP, UK):
Bluetooth 2,400 MHz - 2,483.5 MHz
NFC 13.56 MHz
Maximum output power (AEP, UK):
Bluetooth < 4 dBm
CAUTION
Danger of explosion if battery is incorrectly replaced.
Replace only with the same or equivalent type.
注意
如果电池更换不当会有爆炸危险
只能用同样类型或等效类型的电池来更换
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The validity of the CE marking is restricted to only those countries
where it is legally enforced, mainly in the countries EEA (European
Economic Area).
The Bluetooth® word mark and logos are registered trademarks
owned by the Bluetooth SIG, Inc. and any use of such marks by
Sony Corporation is under license.
The N-Mark is a trademark or registered trademark of NFC Forum,
Inc. in the United States and in other countries.
Windows is a registered trademark or trademark of Microsoft
Corporation in the United States and/or other countries.
Mac, OS X,iPhone and iPod touch are trademarks of Apple Inc.,
registered in the U.S. and other countries.
“Made for iPod” and “Made for iPhone” mean that an electronic
accessory has been designed to connect specically to iPod or
iPhone, respectively, and has been certied by the developer to
meet Apple performance standards.Apple is not responsible for
the operation of this device or its compliance with safety and
regulatory standards. Please note that the use of this accessory
with iPod or iPhone may aect wireless performance.
Qualcomm® aptX™ audio is a product of Qualcomm Technologies
International, Ltd.
Qualcomm is a trademark of Qualcomm Incorporated, registered in
the United States and other countries, used with permission. aptX
is a trademark of Qualcomm Technologies International, Ltd.,
registered in the United States and other countries, used with
permission.
Android is a trademark of Google Inc.
Other trademarks and trade names are those of their respective
owners.

WH-CH700N
2
SECTION 1
SERVICING NOTES
REUSE OF THE BUILT-IN LITHIUM ION RECHARGE-
ABLE BATTERY
When the lithium ion rechargeable battery is removed, it cannot be
reused. Be sure to replace it with new parts.
CHECKING THE NEW LITHIUM ION RECHARGEABLE
BATTERY FOR BEFORE USE AND NOTES ON HAN-
DLING
• Checking before use
When replacing the lithium ion rechargeable battery to the new
parts, be sure to check the exterior condition before installing the
new lithium ion rechargeable battery in this unit.
• No external wound such as scratches
• No swell
etc.
If there are some abnormality with the exterior, do not use that
lithium ion rechargeable battery.
• Notes on handling
When handling the new lithium ion rechargeable battery, handle
with notes of the following.
• Do not drop it
If it drops accidentally, do not use that lithium ion rechargeable
battery.
• Do not scratch with tweezers or other sharp objects
If it scratches accidentally, do not use that lithium ion recharge-
able battery.
CHECKING THE SERIAL NUMBER
The serial number can be checked with the label that is pasted in-
side of right hanger.
Refer to the following figure.
Serial number label
COLOR VARIATIONS
CH : (B) Black
Except CH : (B) Black, (H) Gray, (L) Blue
The SERVICING NOTES contains important information for
servicing. Be sure to read this section before repairing the
unit.
1. SERVICING NOTES ............................................. 2
2. DISASSEMBLY
2-1. Disassembly Flow........................................................... 5
2-2. Ear Pad............................................................................ 6
2-3. Battery Wire Connector .................................................. 7
2-4. Battery Assy (R-ch) ........................................................ 8
2-5. Front Plate (R) Block,
R SWITCH Board Block (R-ch)..................................... 9
2-6. Jog Button, R SWITCH Board (R-ch)............................ 10
2-7. Volume Button, Housing Cover (R) (R-ch) .................... 11
2-8. Ornament (R) (R-ch)....................................................... 11
2-9. Housing (R) Block, O-ring (AORI) (R-ch) .................... 12
2-10. Front Plate (L) Block (L-ch)........................................... 12
2-11. L MAIN Board Block (L-ch).......................................... 13
2-12. NC Button, Power Button Assy,
Housing Cover (L) (L-ch)............................................... 14
2-13. Ornament (L) (L-ch) ....................................................... 14
2-14. Housing (L) Block, O-ring (AORI) (L-ch)..................... 15
3. EXPLODED VIEWS
3-1. Ear Pad Section............................................................... 16
3-2. Right Housing Section .................................................... 17
3-3. Left Housing, Headband Section .................................... 18
4. ACCESSORIES ....................................................... 19
TABLE OF CONTENTS

WH-CH700N
3
DESTINATION ABBREVIATIONS
The following abbreviations for model destinations are used in this
service manual.
• Abbreviations
AEP : European area, East European area, CIS area (Moldova),
Middle East area (Israel) models
AUS : Oceania area model
CH : Chinese model
CND : Canadian model
JE : Tourist model
LA : Latin American model
RU : CIS area model (Except for Moldova)
MODEL IDENTIFICATION
To distinguish the destination of this unit, refer to model number
label that is printed on the lower slider (R) on the right inside the
headband.
slider lower (R)
US, CND, LA
E, AUS, JE, RU CH
AEP, UK
NOTES FOR REPAIR OF BOARDS
When boards installed in this unit are defective, it is replaced by
the board.
Replace the complete mounted board or the whole parts including
the applicable board.
RESET METHOD
When resetting this unit, operate by following procedure.
Note: Even if this work is performed, device pairing information is not
deleted.
Procedure:
1. Connect this unit to a booted PC or optional USB AC adaptor
using the supplied micro-USB cable, set the charge status.
2. Press the [1] and [NC] buttons simultaneously.
3. This unit be reset.
Connection:
or
NC
1
micro-USB cable
INITIALIZING METHOD
After completion of repairs, be sure to perform the following pro-
cedure to initialize this unit.
Note 1: When this work is performed, all device pairing information is
deleted and settings return to factory defaults.
Procedure:
1. Check that the micro-USB cable is not connected to this unit,
and turn off the power.
Note 2: If already power is turned off, check the micro-USB cable is not
connected, proceed to step 2.
Press the [1] button to turn the power off.
(Check that indicator is lighted off)
Disconnect the micro-USB cable.
2. Press the [1] on the left channel and the [u] buttons on the
right channel side simultaneously for 7 seconds or longer.
[1]
[u]
3. The left channel side indicator (blue) flashes 4 times and the
settings return to factory defaults.
(blue)
Note 3: When this unit is initialized, it might not be able to connect to
iPhone or PC.
In that case, delete the registration of this unit on iPhone or PC,
register the device again.

WH-CH700N
4
• Repairing and Replacing of Headband Block
When the headband block is defective, only the headband block
can be repaired and replaced.
Remove the left and right housing block form the repairing unit,
replacing by a new headband assy (EXPLODED VIEWS: Ref. No.
HB1).
headband assy
(EXPLODED VIEWS: Ref. No. HB1)
• Repairing and Replacing of other parts
Refer to “3. EXPLODED VIEWS” on page 16 for repairing and
replacing of parts other than the L MAIN board, L NFC board, left
and right front plate portion.
NOTES ON DISASSEMBLY
The precise noise canceling function of this unit is adjusted in the
production process.
Therefore, it is not possible to disassemble the portion affecting
the adjustment of the noise canceling function or to replace the
parts affecting it.
(It is not possible to adjust the noise canceling function)
Refer to the following for repairing and replacing the main parts.
• Disassembly Prohibition of Front Plate Portion
Don’t disassemble the left and right front plate portion.
If disassembling this unit to the latter than the status shown in the
figure below, malfunction will occur in adjustment of the noise
canceling function.
Note 1: There is no problem removing the lead wires coming from the
front plate from the L MAIN board and separating the front plate
and the L MAIN board.
Note 2: There are combinations on the L MAIN board, L NFC board, left
and right front plate portion, so they cannot be repaired and re-
placed individually.
– L-ch –
– R-ch –
– Front view – – Rear view –
– Front view – – Rear view –
• Repairing and Replacing of L MAIN Board, L NFC
Board, Left and Right Front Plate Portion
When the L MAIN board, L NFC board, left and right front plate
portion are defective, replacing by the SVX headband assy (EX-
PLODED VIEWS: Ref. No. HPN1).
SVX headband assy
(EXPLODED VIEWS: Ref. No. HPN1)

WH-CH700N
5
SECTION 2
DISASSEMBLY
• This set can be disassembled in the order shown below.
2-1. DISASSEMBLY FLOW
SET
2-5. FRONT PLATE (R) BLOCK,
R SWITCH BOARD BLOCK
(Page 9)
2-3. BATTERY WIRE CONNECTOR
(Page 7)
2-8. ORNAMENT (R)
(Page 11)
2-10. FRONT PLATE (L) BLOCK
(Page 12)
2-4. BATTERY ASSY
(Page 8)
2-7. VOLUME BUTTON,
HOUSING COVER (R)
(Page 11)
2-2. EAR PAD
(Page 6)
L-ch
R-ch
2-6. JOG BUTTON,
R SWITCH BOARD
(Page 10)
2-9. HOUSING (R) BLOCK,
O-RING (AORI)
(Page 12)
2-11. L MAIN BOARD BLOCK
(Page 13)
2-13. ORNAMENT (L)
(Page 14)
2-12. NC BUTTON,
POWER BUTTON ASSY,
HOUSING COVER (L)
(Page 14)
2-14. HOUSING (L) BLOCK,
O-RING (AORI)
(Page 15)
Note: Please detach the cable (with plug) beforehand.

WH-CH700N
6
Note: Follow the disassembly procedure in the numerical order given.
2-2. EAR PAD
Note 1: The left and right ear pads can be removed using the same procedure.
This explanation uses illustrations from the right side.
OK NG
OK
NG
NG
Wrinkle.Protruding.
small curve
No gap.
V-cut mark on top
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–5HDUYLHZ–
ear pad
lower
side
Note 2: When installing the ear pad, check the V-cut mark in the figure below,
and install the ear pad in the correct orientation.
lower
side
small curve
1Remove the ear pad from
the groove between of
front plate and rear plate.
rear plate
2ear pad
front plate
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1Install the ear pad into the
groove between of front plate
and rear plate. 2Press.
2Press.
2Press.
–5FK–front plate
rear plate

WH-CH700N
7
2-3. BATTERY WIRE CONNECTOR
Insert only part way.Insert straight into
the interior.
connector
Insert at a slant.
connector connector connector
connector connector
OK NG NG
How to install the connector
Insert the connector straight into the interior.
There is a possibility that using this unit without
the connector correctly installed will damage it.
1four screws
(2 u5)
PWB sheet
2Remove the front plate (R) block
in the direction of the arrow.
front plate (R) block
4Remove the battery
wire connector.
– R-ch –
:ire settinJ
Push the battery wire in between
the screw boss and housing (R).
housing (R) screw boss
:ire settinJ
driver wire
microphone wire
R SWITCH board
battery assy
3PWB sheet
Note: Peel off while taking care not
to damage the battery assy.
battery assy

WH-CH700N
8
2-4. BATTERY ASSY (R-ch)
4Peel the battery block off
of the battery adhesive.
3Move the microphone block
to the outer side.
5wire sheet
6battery assy
microphone wire
front plate (R) block
rib
rib
– R-ch –
1Draw the microphone
wire out of the rib.
2microphone block
microphone
microphone block
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R SWITCH board
Install each wire as shown figure below.
front plate (R) block
battery adhesive
Note: When removing the battery assy from the battery adhesive, the
battery assy cannot be reused. Be sure to replace them with new
parts.

WH-CH700N
9
2-5. FRONT PLATE (R) BLOCK, R SWITCH BOARD BLOCK (R-ch)
– R-ch –
3Remove two solders of
the microphone wire.
2front plate (R) block
1Remove two solders of
the driver wire.
hole
4two screws
(2 u5)
5Draw the jog button
out of the hole.
jog button
boss
6Turn over the R SWITCH
board block.
hole
hole
boss
[natural]
[red]
microphone wire
rib driver wire
:LUH VHWWLQJ
R SWITCH
board
Install each wire as shown figure below.
[green]
[natural]
:LUH VHWWLQJ
relay cable
rib
Push the relay cable in between
the rib and battery assy.
battery assy
7R SWITCH board block
Note 2: When installing the R SWITCH board block,
align the two bosses and two holes.
Note 1: The L MAIN board, L NFC board, front plate (L) block, and
front plate (R) block have specific combinations and cannot
be repaired and replaced individually. If the L MAIN board,
L NFC board, front plate (L) block, or front plate (R) block
malfunctions, replace the SVX headband assy.

WH-CH700N
10
2-6. JOG BUTTON, R SWITCH BOARD (R-ch)
4R SWITCH board block
1Remove four solders
of the relay cable.
(See Fig. C)
3Remove five solders
of the relay cable.
(See Fig. A)
2PWB sheet
(See Fig. B)
[dark blue]
[blue/red]
R SWITCH board
PWB sheet
[white]
[black]
[red]
[natural]
[blue/natural] [blue]
[gray]
5jog button
:LUHVHWWLQJ
6jog cushion
8R SWITCH board
R SWITCH board
Install each wire as shown figure below.
7kapton sheet
(PWB)
kapton sheet (PWB)
R SWITCH board R SWITCH board
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guide lineguide line

WH-CH700N
11
2-7. VOLUME BUTTON, HOUSING COVER (R) (R-ch)
– R-ch –
3screw
(1.7 u2.5)
boss
hole
hole
hole
hole
2volume button
Note 1: When installing the volume button,
align the two bosses and two holes.
4housing cover (R)
Note 2: When installing the housing cover (R),
align the two bosses and two holes.
boss boss
boss
1Draw the volume button
out of the hole.
hole
2-8. ORNAMENT (R) (R-ch)
hole
– R-ch –
boss
“R” : ornament (R)
Firmly press in the
claw positions.
1claw
hole
boss
1claw
1claw
1claw
2ornament (R)
Note: When installing the ornament (R),
align the two bosses and two holes.
+RZWRLQVWDOOWKHRUQDPHQW5
When installing the ORNAMENT (R), check that “R” is
engraved on the inner side and is for the right side, make
sure that the SONY logo on the outer side is in the correct
position, and install onto the unit.
–,QQHUYLHZ––2XWHUYLHZ–

WH-CH700N
12
2-9. HOUSING (R) BLOCK, O-RING (AORI) (R-ch)
3Draw out the relay wire
from the hole.
long path hanger
1Open the short path hanger in the direction
of the arrow and pull out the shaft from the
hole of housing (R) block.
short path hanger
2Open the long path hanger in the direction
of the arrow and pull out the shaft from the
hole of housing (R) block.
4housing (R) block
hole
– R-ch –
5O-ring (AORI)
Note: Lubricant (SANKOL) is applied to the
O-ring (AORI) parts for repair.
Be careful when handling the parts.
5O-ring (AORI)
Note: Lubricant (SANKOL) is applied to
the O-ring (AORI) parts for repair.
Be careful when handling the parts.
2-10. FRONT PLATE (L) BLOCK (L-ch)
1four screws
(2 u5)
2Remove the front plate (L) block
in the direction of the arrow.
5front plate (L) block
3wire holding sheet
– L-ch –
:LUHVHWWLQJ
driver wire
[green][natural]
L MAIN board
L MAIN board
Install each wire as shown figure below.
microphone
wire
wire holding
sheet
:LUHVHWWLQJ L MAIN board
driver wire
4Remove two solders
of the driver wire.
Note 2: The L MAIN board can be removed without
removing the solders of the driver wire.
Note 1: The L MAIN board, L NFC board, front plate (L) block, and
front plate (R) block have specific combinations and cannot
be repaired and replaced individually. If the L MAIN board,
L NFC board, front plate (L) block, or front plate (R) block
malfunctions, replace the SVX headband assy.

WH-CH700N
13
2-11. L MAIN BOARD BLOCK (L-ch)
2Remove four solders
of the relay cable.
(See Fig. F)
4Remove five solders
of the relay cable.
(See Fig. D)
3PWB sheet
(See Fig. E)
9claw
1NC light guide
L MAIN
board
:LUHVHWWLQJ
Install each wire as shown figure below.
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5Remove two solders
of the L NFC board
wire. (See Fig. D)
6Draw the microphone
wire out of the rib.
–/FK–
7screw
(2 u5)
boss
boss
hole
hole
0Draw the two jacks out
of the two holes.
hole
hole
qa L MAIN board block
Note 2: When installing the L MAIN
board block, align the two
bosses and two holes.
relay cable
[green]
[natural]
microphone
wire
[blue/red][white]
[black]
[red]
[natural]
[blue/
natural]
[blue]
[gray]
rib
[red]
(reference)
[natural]
(reference)
L NFC board wire
rib
rib
PWB sheet
L MAIN board
L MAIN board
PWB sheet
rib
8microphone
block
microphone
[dark blue]
rib
6Draw the microphone
wire out of the rib.
Note 1: The L MAIN board, L NFC board, front plate (L) block, and
front plate (R) block have specific combinations and cannot
be repaired and replaced individually. If the L MAIN board,
L NFC board, front plate (L) block, or front plate (R) block
malfunctions, replace the SVX headband assy.

WH-CH700N
14
2-12. NC BUTTON, POWER BUTTON ASSY, HOUSING COVER (L) (L-ch)
5screw
(1.7 u2.5)
boss
hole hole
hole
4power button assy
Note 2: When installing the power button assy,
align the two bosses and two holes.
6housing cover (L)
Note 3: When installing the housing cover (L),
align the two bosses and two holes.
boss boss
boss
boss
boss
hole
two holes
two holes
2NC button
Note 1: When installing the NC button,
align the two bosses and two holes.
1Draw the NC button
out of the hole.
3Draw the power button
assy out of the hole.
– L-ch –
2-13. ORNAMENT (L) (L-ch)
hole
boss
“L” : ornament (L)
1claw hole
boss
1claw
1claw 1claw
2ornament (L)
Note: When installing the ornament (L),
align the two bosses and two holes.
– L-ch –
Firmly press in the
claw positions.
+RZWRLQVWDOOWKHRUQDPHQW/
When installing the ORNAMENT (L), check that "L" is
engraved on the inner side and is for the left side, make
sure that the SONY logo on the outer side is in the correct
position, and install onto the unit.
–,QQHUYLHZ––2XWHUYLHZ–

WH-CH700N
15
2-14. HOUSING (L) BLOCK, O-RING (AORI) (L-ch)
4Draw out the relay wire
from the hole.
long path hanger
2Open the short path hanger in the direction
of the arrow and pull out the shaft from the
hole of housing (L) block.
1Draw the relay wire out of the rib.
short path hanger
3Open the long path hanger in the direction
of the arrow and pull out the shaft from the
hole of housing (L) block.
5housing (L) block
hole
– L-ch –
L NFC board
6O-ring (AORI)
Note 2: Lubricant (SANKOL) is applied to
the O-ring (AORI) parts for repair.
Be careful when handling the parts.
rib
6O-ring (AORI)
Note 2: Lubricant (SANKOL) is applied to
the O-ring (AORI) parts for repair.
Be careful when handling the parts.
Note 1: The L MAIN board, L NFC board, front plate (L) block, and
front plate (R) block have specific combinations and cannot
be repaired and replaced individually. If the L MAIN board,
L NFC board, front plate (L) block, or front plate (R) block
malfunctions, replace the SVX headband assy.

16
WH-CH700N
SECTION 3
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
3-1. EAR PAD SECTION
xxxxxxxx
HPN1
(Refer to page 17, 18)
(See Note)
1
–L-ch –
–R-ch –
1
1 4-728-990-01 PAD, EAR (for Black)
1 4-728-990-11 PAD, EAR (for Gray)
1 4-728-990-21 PAD, EAR (for Blue)
HPN1 A-2215-013-A HEADBAND ASSY, SVX (for Black) (CH) (See Note)
HPN1 A-2215-016-A HEADBAND ASSY, SVX (for Black) (E, AUS, JE, RU)
(See Note)
HPN1 A-2215-017-A HEADBAND ASSY, SVX (for Gray) (E, AUS, JE, RU)
(See Note)
HPN1 A-2215-018-A HEADBAND ASSY, SVX (for Blue) (E, AUS, JE, RU)
(See Note)
HPN1 A-2215-019-A HEADBAND ASSY, SVX (for Black) (US, CND, LA)
(See Note)
HPN1 A-2215-020-A HEADBAND ASSY, SVX (for Gray) (US, CND, LA)
(See Note)
HPN1 A-2215-021-A HEADBAND ASSY, SVX (for Blue) (US, CND, LA)
(See Note)
HPN1 A-2215-022-A HEADBAND ASSY, SVX (for Black) (AEP, UK)
(See Note)
HPN1 A-2215-023-A HEADBAND ASSY, SVX (for Gray) (AEP, UK)
(See Note)
HPN1 A-2215-024-A HEADBAND ASSY, SVX (for Blue) (AEP, UK)
(See Note)
Ref. No. Part No. Description Remark Ref. No. Part No. Description Remark
• Refer to “COLOR VARIATIONS” on page 2
about color variation of the unit.
Note: The headband assy (Ref. No. HPN1) can be disassembled. For
the right housing block, refer to page 17, for the left housing
block and headband, refer to page 18. Also, the serial number will
change when the headband assy is replaced.

17
WH-CH700N
3-2. RIGHT HOUSING SECTION
xxxxxxxx
–L-ch –
–R-ch –
A
A
51
not supplied
not supplied not supplied
not supplied
not supplied
not supplied
not supplied
(front plate (R) block)
(See Note 2)
not supplied
52
53
54
55
56
57
57
58
57
57
57
57
D
D
left housing,
headband section
BAT1
(See Note 1)
Note 1: When removing the SVX battery assy (Ref. No. BAT1) from the
battery adhesive (Ref. No. 55), the SVX battery assy cannot be
reused. Be sure to replace them with new parts.
Note 2: The L MAIN board (page 18), L NFC board (page 18), front plate (L) block (page 18), and front plate (R) block (this page) have specific com-
binations and cannot be repaired and replaced individually. If the L MAIN board, L NFC board, front plate (L) block, or front plate (R) block
malfunctions, replace the SVX headband assy (Ref. No. HPN1: page 16).
51 3-254-003-01 SCREW (1.7X2.5 mm)
52 4-729-186-01 COVER, HOUSING (R) (R-ch for Black)
52 4-729-186-11 COVER, HOUSING (R) (R-ch for Gray)
52 4-729-186-21 COVER, HOUSING (R) (R-ch for Blue)
53 4-729-188-01 BUTTON, VOLUME (for Black)
53 4-729-188-11 BUTTON, VOLUME (for Gray)
53 4-729-188-21 BUTTON, VOLUME (for Blue)
54 4-729-189-01 ORNAMENT (R) (R-ch for Black)
54 4-729-189-11 ORNAMENT (R) (R-ch for Gray)
54 4-729-189-21 ORNAMENT (R) (R-ch for Blue)
55 4-728-994-01 ADHESIVE, BATTERY
56 A-2196-358-A R SWITCH BOARD, COMPLETE
57 3-254-058-21 SCREW (2.0X5.0 mm)
58 4-729-187-01 BUTTON, JOG (for Black)
58 4-729-187-11 BUTTON, JOG (for Gray)
58 4-729-187-21 BUTTON, JOG (for Blue)
BAT1 A-2215-026-A BATTERY ASSY, SVX (Including Battery label)
(See Note 1)
Ref. No. Part No. Description Remark Ref. No. Part No. Description Remark

18
WH-CH700N
3-3. LEFT HOUSING, HEADBAND SECTION
xxxxxxxx
–L-ch –
–R-ch –
B
BC
C
not supplied
not supplied
not
supplied
not supplied
(L MAIN board)
(See Note 2)
not supplied
(L NFC board)
(See Note 2)
not supplied
not supplied
(front plate (L) block)
(See Note 2)
HB1
101
102
103
104
105
105
105
105
105
106
106
107
not supplied
(serial number label)
Note 2: The L MAIN board (this page), L NFC board (this page), front plate (L) block (this page), and front plate (R) block (page 17) have specific
combinations and cannot be repaired and replaced individually. If the L MAIN board, L NFC board, front plate (L) block, or front plate (R) block
malfunctions, replace the SVX headband assy (Ref. No. HPN1: page 16).
101 4-728-985-01 COVER, HOUSING (L) (L-ch for Black)
101 4-728-985-11 COVER, HOUSING (L) (L-ch for Gray)
101 4-728-985-21 COVER, HOUSING (L) (L-ch for Blue)
102 X-2595-659-1 BUTTON, POWER ASSY (1) (for Black)
102 X-2595-797-1 BUTTON, POWER ASSY (1) (for Gray)
102 X-2595-798-1 BUTTON, POWER ASSY (1) (for Blue)
103 3-254-003-01 SCREW (1.7X2.5 mm)
104 4-728-988-01 BUTTON, NC (for Black)
104 4-728-988-11 BUTTON, NC (for Gray)
104 4-728-988-21 BUTTON, NC (for Blue)
105 3-254-058-21 SCREW (2.0X5.0 mm)
106 A-2193-912-A O-RING ASSY, SVX (Applied SANKOL)
(2 pieces 1 set) (See Note 1)
107 4-728-989-01 ORNAMENT (L) (L-ch for Black)
107 4-728-989-11 ORNAMENT (L) (L-ch for Gray)
107 4-728-989-21 ORNAMENT (L) (L-ch for Blue)
HB1 X-2595-656-2 HEADBAND, ASSY (BLACK-UC) (Including Relay
cable, O-ring (AORI)) (for Black) (US, CND, LA)
HB1 X-2595-704-2 HEADBAND, ASSY (GRAY-UC) (Including Relay
cable, O-ring (AORI)) (for Gray) (US, CND, LA)
HB1 X-2595-705-2 HEADBAND, ASSY (BLUE-UC) (Including Relay
cable, O-ring (AORI)) (for Blue) (US, CND, LA)
HB1 X-2595-827-2 HEADBAND, ASSY (BLACK-CE7) (Including Relay
cable, O-ring (AORI)) (for Black) (AEP, UK)
HB1 X-2595-828-2 HEADBAND, ASSY (GRAY-CE7) (Including Relay
cable, O-ring (AORI)) (for Gray) (AEP, UK)
HB1 X-2595-829-2 HEADBAND, ASSY (BLUE-CE7) (Including Relay
cable, O-ring (AORI)) (for Blue) (AEP, UK)
HB1 X-2595-830-2 HEADBAND, ASSY (BLACK-E) (Including Relay
cable, O-ring (AORI)) (for Black) (E, AUS, JE, RU)
HB1 X-2595-831-2 HEADBAND, ASSY (GRAY-E) (Including Relay
cable, O-ring (AORI)) (for Gray) (E, AUS, JE, RU)
HB1 X-2595-832-2 HEADBAND, ASSY (BLUE-E) (Including Relay
cable, O-ring (AORI)) (for Blue) (E, AUS, JE, RU)
HB1 X-2595-833-2 HEADBAND, ASSY (BLACK-CN) (Including Relay
cable, O-ring (AORI)) (for Black) (CH)
Ref. No. Part No. Description Remark Ref. No. Part No. Description Remark
Note 1: Lubricant (SANKOL) is applied to the SVX O-RING ASSY
(Ref. No. 106). Be careful when handling the parts.

Ref. No. Part No. Description Remark
WH-CH700N
1919
SECTION 4
ACCESSORIES
4-729-819-11 MANUAL, INSTRUCTION (Operating Instructions)
4-729-820-11 GUIDE, REFERENCE
(ENGLISH, SPANISH, FRENCH) (US, CND, LA)
4-729-820-21 GUIDE, REFERENCE (SIMPLIFIED CHINESE)
(CH)
4-729-820-31 GUIDE, REFERENCE (ENGLISH, RUSSIAN,
ARABIC, TRADITIONAL CHINESE, KOREAN)
(E, AUS, JE, RU)
4-729-820-41 GUIDE, REFERENCE (ENGLISH, FRENCH,
GERMAN, SPANISH, DUTCH, ITALIAN, POLISH,
HUNGARIAN) (AEP, UK)
4-729-820-51 GUIDE, REFERENCE (PORTUGUESE, GREEK,
CZECH, BULGARIAN, SLOVAK, SLOVENIAN,
ROMANIAN) (AEP, UK)
501 1-848-682-11 CABLE, CONNECTION (USB)
(Micro-USB cable (approx. 50 cm))
502 1-846-746-63 CABLE (WITH PLUG)
(Headphone cable (approx. 1.2 m))
502
Headphone cable (approx. 1.2 m) (1)
501
Micro-USB cable (approx. 50 cm) (1)

WH-CH700N
REVISION HISTORY
Ver. Date Description of Revision
1.0 2017.12 New