Sony MDR-ZX770BN Service Manual
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Sony MDR-ZX770BN Service Manual

Wireless noise canceling stereo headset
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SERVICE MANUAL
Ver. 1.1 2016.08
General
Communication system: BLUETOOTH Specification version 3.0
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)
Modulation method: FHSS
Compatible BLUETOOTH profiles
2)
:
A2DP (Advanced Audio Distribution Profile)
AVRCP (Audio Video Remote Control Profile)
HFP (Hands-free Profile)
HSP (Headset Profile)
3)
4)
5)
Supported Codec
: SBC
, AAC
, aptX
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)
(MDR-ZX770BN/ZX780DC only)
Wireless stereo headset (1) (MDR-ZX770BT only)
Micro-USB cable (approx. 50 cm (19 3/4 in.)) (1)
Headphone cable (approx. 1.2 m (47 1/4 in.)) (1)
(MDR-ZX770BN/ZX780DC only)
Carrying pouch (1) (MDR-ZX770BN/ZX780DC only)
Carrying case (1) (MDR-ZX780DC only)
USB charger (1) (MDR-ZX780DC only)
Reference Guide (1)
Quick Start Guide (1)
Other documents (1 set)
(MDR-ZX770BN: US, Canadian, AEP, UK and Latin American/
ZX770BT: US and Canadian/ZX780DC 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
CAUTION
Danger of explosion if battery is incorrectly replaced.
Replace only with the same or equivalent type.
9-896-156-02
2016H33-1
Sony Video & Sound Products Inc.
©
2016.08
MDR-ZX770BN/ZX770BT/
Photo: MDR-ZX770BN
SPECIFICATIONS
Wireless noise canceling stereo
headset (MDR-ZX770BN/ZX780DC)
Power source:
DC 3.7 V: Built-in lithium-ion rechargeable battery
DC 5 V: When charged using USB
Mass: Approx. 245 g (8.64 oz)
Operating temperature: 0 °C to 40 °C (32 °F to 104 °F)
Rated power consumption: 1.5 W (Except US and Canadian models)
Usage hours:
When connecting via the BLUETOOTH device
Music playback time:
Max. 13 hours (NC ON), Max. 19 hours (NC OFF)
Communication time:
Max. 10 hours (NC ON), Max. 12 hours (NC OFF)
Standby time:
Max. 26 hours (NC ON), Max. 150 hours (NC OFF)
When connecting via the headphone cable
Max. 24 hours (NC ON)
Note: Usage hours may be shorter depending on the
Codec and the conditions of use.
Charging time:
Approx. 2.5 hours
Note: Charging 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 units: 40 mm
Frequency response: 8 Hz - 22,000 Hz (when using the
headphone cable)
Maximum input: 100 mW (when using the headphone cable)
Impedance:
NC ON: 23
(1 kHz) (when using the headphone cable)
NC OFF: 50
(1 kHz) (when using the headphone cable)
Sensitivity:
NC ON: 98 dB/mW (when using the headphone cable)
NC OFF: 100 dB/mW (when using the headphone cable)
Microphone
Type: Electret condenser
Directivity: Omni directional
Effective frequency range: 100 Hz - 10,000 Hz
WIRELESS NOISE CANCELING STEREO HEADSET
Canadian Model
MDR-ZX770BN/ZX770BT/ZX780DC
Latin American Model
Australian Model
Tourist Model
Russian Model
MDR-ZX770BN/ZX770BT
Wireless stereo headset (MDR-ZX770BT)
Power source:
DC 3.7 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)
(US and Canadian models)
5 °C to 35 °C (Except US and Canadian models)
Rated power consumption: 1.5 W (Except US and Canadian models)
Usage hours:
When connecting via the BLUETOOTH device
Music playback time: Max. 17 hours
Communication time: Max. 17 hours
Standby time: Max. 450 hours
Note: Usage hours may be shorter depending on the
Codec and the conditions of use.
Charging time:
Approx. 2.5 hours
Note: Charging 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 units: 40 mm
Microphone
Type: Electret condenser
Directivity: Omni directional
Effective frequency range: 100 Hz - 10,000 Hz
System requirements for battery
charge using USB
Personal Computer with pre-installed with any of the following
operating systems and USB port:
Operating Systems
(when using Windows)
Windows
®
8.1 / Windows
®
8.1 Pro
Windows
®
8 / Windows
®
8 Pro
Windows
®
7
Home Basic / Home Premium / Professional / Ultimate
Windows Vista
®
(Service Pack 2 or later)
Home Basic / Home Premium / Business / Ultimate
(when using Mac)
Mac OS X (version.10.3 or later)
Design and specifications are subject to change without notice.
MDR-ZX770BN/ZX780DC
WIRELESS STEREO HEADSET
ZX780DC
US Model
AEP Model
UK Model
MDR-ZX770BN
E Model
MDR-ZX770BT

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Summary of Contents for Sony MDR-ZX770BN

  • Page 1 Directivity: Omni directional Driver units: 40 mm Effective frequency range: 100 Hz - 10,000 Hz (MDR-ZX770BN: US, Canadian, AEP, UK and Latin American/ Frequency response: 8 Hz - 22,000 Hz (when using the ZX770BT: US and Canadian/ZX780DC only) headphone cable)

  • Page 2: Table Of Contents

    Ver. 1.1 MDR-ZX770BN/ZX770BT TABLE OF CONTENTS The BLUETOOTH word mark and logos are owned by the Bluetooth SIG, Inc. and any use of such marks by Sony SERVICING NOTES ..........Corporation is under license. The N Mark is a trademark or registered trademark of NFC DISASSEMBLY Forum, Inc.

  • Page 3: Servicing Notes

    MDR-ZX770BN/ZX770BT/ZX780DC SECTION 1 SERVICING NOTES The SERVICING NOTES contains important information for servicing. Be sure to read this section before repairing the unit. DESTINATION ABBREVIATIONS PROCESSING AFTER COMPLETION OF REPAIRS The following abbreviations for model destinations are used in this After completion of repairs, be sure to perform the following pro- service manual.

  • Page 4: Disassembly

    MDR-ZX770BN/ZX770BT/ZX780DC Ver. 1.1 SECTION 2 DISASSEMBLY • This set can be disassembled in the order shown below. 2-1. DISASSEMBLY FLOW 2-2. EAR PAD (Page 5) 2-3. CAP HOUSING (L) SUB ASSY (L-ch) 2-8. CAP HOUSING (R) SUB ASSY (R-ch) (Page 6) (Page 11) 2-4.

  • Page 5: Ear Pad

    MDR-ZX770BN/ZX770BT/ZX780DC Ver. 1.1 Note: Follow the disassembly procedure in the numerical order given. 2-2. EAR PAD Note 1: L-ch and R-ch can be similarly disassembled. 1 Pull the ear pad in the (ZX770BN) (ZX770BT) (ZX780DC) 3 ear pad direction of the arrow.

  • Page 6: Cap Housing (L) Sub Assy (L-Ch)

    MDR-ZX770BN/ZX770BT/ZX780DC Ver. 1.1 2-3. CAP HOUSING (L) SUB ASSY (L-ch) (ZX770BN/ZX780DC) When disassembling the unit, use the following jig. Note 1: When using a jig, please work Part No. Description so as not to injure cap ring. 1 Set the cap housing (L)

  • Page 7: Front Plate (L) Sub Assy (Dr1) (L-Ch)

    MDR-ZX770BN/ZX770BT/ZX780DC 2-4. FRONT PLATE (L) SUB ASSY (DR1) (L-ch) battery adhesive NFC module block NFC module block (RC-S711) (RC-S711) guide line guide line 1 Peel off the battery adhesive. – L-ch – 2 NFC module block 3 screw (RC-S711) Note: When installing the front plate (L)

  • Page 8: Ring (L), Electret Cap Microphone (Mic1) (L-Ch)

    MDR-ZX770BN/ZX770BT/ZX780DC Ver. 1.1 2-5. RING (L), ELECTRET CAP MICROPHONE (MIC1) (L-ch) 1 claw 2 ring (L) 1 claw hole – – hole hole 3 button power sub assy 5 Remove the microphone block in the direction of the arrow. 8 electret cap microphone (MIC1)

  • Page 9: Nfc Module (Rc-S711), Main Board (L-Ch)

    MDR-ZX770BN/ZX770BT/ZX780DC Ver. 1.1 2-6. NFC MODULE (RC-S711), MAIN BOARD (L-ch) Note: When replacing the MAIN board or NFC module (RC-S711), be sure replace both simultaneously. It cannot replace either of one of the MAIN board or NFC module (RC-S711). Among the repair parts, the MAIN board and NFC module (RC-S711) are supplied as one unit.

  • Page 10: Housing (L) (L-Ch)

    MDR-ZX770BN/ZX770BT/ZX780DC Ver. 1.1 2-7. HOUSING (L) (L-ch) – L-ch – hole 2 Remove the shaft of head band NC button assy from the housing (L). housing (L) 1 Remove the shaft of head band assy from the housing (L). (ZX770BN/ZX780DC)

  • Page 11: Cap Housing (R) Sub Assy (R-Ch)

    MDR-ZX770BN/ZX770BT/ZX780DC Ver. 1.1 2-8. CAP HOUSING (R) SUB ASSY (R-ch) (ZX770BN/ZX780DC) When disassembling the unit, use the following jig. Note 1: When using a jig, please work so as not to injure cap ring. Part No. Description 1 Set the cap housing (R)

  • Page 12: Front Plate (R) Sub Assy (Dr2) (R-Ch)

    MDR-ZX770BN/ZX770BT/ZX780DC Ver. 1.1 2-9. FRONT PLATE (R) SUB ASSY (DR2) (R-ch) – R-ch – 3 Remove the front plate (R) sub assy in the direction of the arrow. 1 screw 7 front plate (R) sub assy (DR2) 5 Remove the solder.

  • Page 13: Sub Board (R-Ch)

    MDR-ZX770BN/ZX770BT/ZX780DC Ver. 1.1 2-11. SUB BOARD (R-ch) – – 4 Remove the SUB board block battery sub assy in the direction of the arrow. 3 Remove the JOG button from the hole. 2 Remove the solder. [black] 1 screw 2 Remove the solder.

  • Page 14: Battery (R-Ch)

    MDR-ZX770BN/ZX770BT/ZX780DC Ver. 1.1 2-12. BATTERY (R-ch) guide line 1 Peel off the adhesive battery. battery (BAT1) 3 battery (BAT1) Note: If removing the battery adhesive tape – – of battery (BAT1), can not be re-used battery (BAT1). Replace the new parts always.

  • Page 15: Test Mode

    SECTION 3 TEST MODE NOISE CANCEL VOLUME ADJUSTMENT 3. Deactivating the noise cancel volume adjustment (MDR-ZX770BN/ZX780DC only) mode When the complete mounted board or driver section of this unit is replaced, be sure to perform the noise cancel volume adjustment.
  • Page 16 MDR-ZX770BN/ZX770BT/ZX780DC 6. Remove the unit and slide the [NX/ ] button in the direc- tion of [ ](FF). > Check that the LED of [NC] button blinks cycle of the 160 ms and has become R-ch adjustment. – R-ch –...

  • Page 17: Exploded Views

    MDR-ZX770BN/ZX770BT/ZX780DC Ver. 1.1 SECTION 4 EXPLODED VIEWS Note: • -XX and -X mean standardized parts, so • The mechanical parts with no reference • Color variations they may have some difference from the number in the exploded views are not sup- MDR-ZX770BN original one.

  • Page 18: Housing (L) Section

    MDR-ZX770BN/ZX770BT/ZX780DC Ver. 1.1 4-2. HOUSING (L) SECTION • Rear view housing (R), head band section – L-ch – – R-ch – (ZX770BN/ MIC1 ZX780DC) supplied not supplied (ZX770BN/ZX780DC) NFC module (RC-S711) (See Note 1) included in Ref. No. 54 MAIN...

  • Page 19: Housing (R), Head Band Section

    MDR-ZX770BN/ZX770BT/ZX780DC Ver. 1.1 4-3. HOUSING (R), HEAD BAND SECTION • Front view (ZX770BN/ ZX780DC) – R-ch – – L-ch – supplied BAT1 supplied supplied supplied (ZX770BN/ZX780DC) MIC2 supplied Note 1: If removing the battery (Ref. No. BAT1) from battery adhesive, can not be re-used it.

  • Page 20: Accessories

    MDR-ZX770BN/ZX770BT/ZX780DC Ver. 1.1 SECTION 5 ACCESSORIES Ref. No. Part No. Description Remark Ref. No. Part No. Description Remark 4-559-832-11 GUIDE, QUICK START (ENGLISH, SPANISH, 1-848-682-11 CABLE, CONNECTION (USB) FRENCH) (ZX770BN: US, CND) (Micro-USB cable (approx. 50 cm)) 4-559-832-31 GUIDE, QUICK START (ENGLISH, RUSSIAN,...
  • Page 21 MDR-ZX770BN/ZX770BT/ZX780DC MEMO...
  • Page 22 Change of Part for Ref. No. BAT1 (E, AUS, JE and RU models) Change of Part No. for Ref. No. BAT1 (US, CND, AEP, UK and LA models) Change of Part No. for REFERENCE GUIDE (MDR-ZX770BN: E, AUS, JE and RU models) (SMR-16016)

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