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Sony WH-CH700N Service Manual
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Sony WH-CH700N Service Manual

Wireless noise canceling stereo headset
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SERVICE MANUAL
Ver. 1.0 2017.12
General
Communication system: Bluetooth Specification version 4.1
Output: Bluetooth Specification Power Class 2
Maximum communication range: Line of sight approx. 10 m
(30 ft)
1)
Frequency band: 2.4 GHz band (2.4000 GHz - 2.4835 GHz)
(CH)
Operating frequency (AEP, UK):
Bluetooth 2,400 MHz - 2,483.5 MHz
NFC 13.56 MHz
Maximum output power (AEP, UK):
Bluetooth < 4 dBm
2)
Compatible Bluetooth profiles
:
A2DP (Advanced Audio Distribution Profile)
AVRCP (Audio Video Remote Control Profile)
HFP (Hands-free Profile)
HSP (Headset Profile)
Supported Codec
3)
: SBC
4)
, AAC
5)
, aptX, aptX HD
Supported content protection method: SCMS-T
Transmission range (A2DP):
20 Hz - 20,000 Hz (Sampling frequency 44.1 kHz)
Included items:
Wireless noise canceling stereo headset (1)
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 fields around a microwave
oven, static electricity, reception sensitivity, antenna's
performance, operating system, software application, etc.
2)
Bluetooth standard profiles 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)
Rated power consumption (Except US, CND, LA):
1.2W
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.
9-896-470-01
2017L33-1
Sony Video & Sound Products Inc.
©
2017.12
SPECIFICATIONS
Charging time:
Approx. 7 hours
(About 60 minutes of music playback is possible after
10 minutes charging.)
Note: Charging and usage hours may be different 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 off)
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 off)
Microphone
Type: Electret condenser
Directivity: Omni directional
Effective 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 Home / Windows
10 Pro
Windows
®
8.1 / Windows
®
8.1 Pro
Windows
®
8 / Windows
®
8 Pro
Windows
®
7
Home Basic / Home Premium / Professional / Ultimate
(when using Mac)
Mac OS X (version 10.9 or later)
Design and specifications are subject to change without notice.
WIRELESS NOISE CANCELING STEREO HEADSET
WH-CH700N
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 specifically to iPod or
iPhone, respectively, and has been certified 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 affect 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.
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
US Model
Canadian Model
AEP Model
UK Model
E Model
Australian Model
Chinese Model
Tourist Model

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Summary of Contents for Sony WH-CH700N

  • Page 1 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. WIRELESS NOISE CANCELING STEREO HEADSET 9-896-470-01 2017L33-1 Sony Video & Sound Products Inc. © 2017.12...

  • Page 2: Table Of Contents

    WH-CH700N SECTION 1 SERVICING NOTES TABLE OF CONTENTS The SERVICING NOTES contains important information for servicing. Be sure to read this section before repairing the SERVICING NOTES unit..........DISASSEMBLY REUSE OF THE BUILT-IN LITHIUM ION RECHARGE- 2-1. Disassembly Flow ............
  • Page 3 WH-CH700N DESTINATION ABBREVIATIONS INITIALIZING METHOD The following abbreviations for model destinations are used in this After completion of repairs, be sure to perform the following pro- service manual. cedure to initialize this unit. Note 1: When this work is performed, all device pairing information is •...
  • Page 4 WH-CH700N NOTES ON DISASSEMBLY • Repairing and Replacing of Headband Block The precise noise canceling function of this unit is adjusted in the When the headband block is defective, only the headband block production process. can be repaired and replaced.

  • Page 5: Disassembly

    WH-CH700N SECTION 2 DISASSEMBLY • This set can be disassembled in the order shown below. 2-1. DISASSEMBLY FLOW Note: Please detach the cable (with plug) beforehand. 2-2. EAR PAD (Page 6) 2-3. BATTERY WIRE CONNECTOR (Page 7) R-ch L-ch 2-10. FRONT PLATE (L) BLOCK (Page 12) 2-4.

  • Page 6: Ear Pad

    WH-CH700N 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. 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.

  • Page 7: Battery Wire Connector

    WH-CH700N 2-3. BATTERY WIRE CONNECTOR ire settin screw boss housing (R) Push the battery wire in between the screw boss and housing (R). – R-ch – 4 Remove the battery wire connector. 2 Remove the front plate (R) block in the direction of the arrow.

  • Page 8: Battery Assy (R-Ch)

    WH-CH700N 2-4. BATTERY ASSY (R-ch) Note: When removing the battery assy from the battery adhesive, the battery assy cannot be reused. Be sure to replace them with new parts. Install each wire as shown figure below. microphone wire microphone 2 microphone block 1 Draw the microphone wire out of the rib.

  • Page 9: Front Plate (R) Block, R Switch Board Block (R-Ch)

    WH-CH700N 2-5. FRONT PLATE (R) BLOCK, R SWITCH BOARD BLOCK (R-ch) Note 1: The L MAIN board, L NFC board, front plate (L) block, and front plate (R) block have specifi c 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.

  • Page 10: Jog Button, R Switch Board (R-Ch)

    WH-CH700N 2-6. JOG BUTTON, R SWITCH BOARD (R-ch) – – 1 Remove four solders of the relay cable. (See Fig. C) R SWITCH board kapton sheet (PWB) guide line guide line 2 PWB sheet (See Fig. B) 3 Remove five solders 6 jog cushion of the relay cable.

  • Page 11: Volume Button, Housing Cover (R) (R-Ch)

    When installing the ORNAMENT (R), check that “R” is engraved on the inner side and is for the right side, make – R-ch – sure that the SONY logo on the outer side is in the correct hole position, and install onto the unit.

  • Page 12: Housing (R) Block, O-Ring (Aori) (R-Ch)

    WH-CH700N 2-9. HOUSING (R) BLOCK, O-RING (AORI) (R-ch) 5 O-ring (AORI) Note: Lubricant (SANKOL) is applied to the O-ring (AORI) parts for repair. Be careful when handling the parts. – R-ch – long path hanger short path hanger 1 Open the short path hanger in the direction...

  • Page 13: L Main Board Block (L-Ch)

    WH-CH700N 2-11. L MAIN BOARD BLOCK (L-ch) Note 1: The L MAIN board, L NFC board, front plate (L) block, and front plate (R) block have specifi c 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.

  • Page 14: Nc Button, Power Button Assy

    When installing the ORNAMENT (L), check that "L" is hole 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. –...

  • Page 15: Housing (L) Block, O-Ring (Aori) (L-Ch)

    WH-CH700N 2-14. HOUSING (L) BLOCK, O-RING (AORI) (L-ch) Note 1: The L MAIN board, L NFC board, front plate (L) block, and front plate (R) block have specifi c 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.

  • Page 16: Exploded Views

    WH-CH700N SECTION 3 EXPLODED VIEWS Note: • -XX and -X mean standardized parts, so • The mechanical parts with no reference • Refer to “COLOR VARIATIONS” on page 2 they may have some difference from the number in the exploded views are not sup- about color variation of the unit.

  • Page 17: Right Housing Section

    WH-CH700N 3-2. RIGHT HOUSING SECTION – R-ch – – L-ch – BAT1 (See Note 1) not supplied not supplied left housing, headband section not supplied not supplied (front plate (R) block) (See Note 2) not supplied not supplied not supplied not supplied Note 1: When removing the SVX battery assy (Ref.

  • Page 18: Left Housing, Headband Section

    WH-CH700N 3-3. LEFT HOUSING, HEADBAND SECTION not supplied (serial number label) – R-ch – – L-ch – supplied not supplied not supplied not supplied (front plate (L) block) (See Note 2) not supplied (L MAIN board) (See Note 2) not supplied...

  • Page 19: Accessories

    WH-CH700N SECTION 4 ACCESSORIES Ref. No. Part No. Description Remark 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)
  • Page 20 WH-CH700N REVISION HISTORY Ver. Date Description of Revision 2017.12...

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