Sony MDR-Z7 Bedienungsanleitung

SERVICE MANUAL

Sony Corporation

Published by Sony Techno Create Corporation

9-896-052-01

2014I33-1

MDR-Z7

SPECIFICATIONS

STEREO HEADPHONES

US Model

Canadian Model

AEP Model

UK Model

E Model

Australian Model

Chinese Model

Ver. 1.0 2014.09

Type Closed, dynamic (circum-aural)

Driver unit 70 mm, dome type (CCAW Voice Coil)

Power handling capacity 2,000 mW (IEC*)

Impedance 70 Ω at 1 kHz

Sensitivity 102 dB/mW

Frequency response 4 Hz - 100,000 Hz

Mass Approx. 335 g without cable

Supplied accessories

Headphone cable (Approx. 3 m, silver-coated OFC strands, gold-plated stereo mini

plug) (1)

Balanced-connection headphone cable (Approx. 2 m, silver-coated OFC strands,

3-pole mini plug × 2) (1)

Gold-plated unimatch plug adaptor (stereo phone plug stereo mini jack) (1)

Operating Instructions (1)

* IEC = International Electrotechnical Commission

Design and specications are subject to change without notice.

MDR-Z7

SECTION 1

SERVICING NOTES

DESTINATION ABBREVIATIONS

The following abbreviations for model destinations are used in this

service manual.

• Abbreviations

AUS : Australian model

CH : Chinese model

CND : Canadian model

NOTE OF REPLACING THE HEAD BAND ASSY

A serial number is marked on the unit’s head band arm.

Therefore, when the head band assy is replaced, the serial number

changes.

serial number

–L-ch –

–R-ch –

The SERVICING NOTES contains important information for servicing. Be sure to read this section before repairing the unit.

MDR-Z7

SECTION 2

DISASSEMBLY

• This set can be disassembled in the order shown below.

2-1. DISASSEMBLY FLOW

SET

2-3. HOUSING BLOCK

(Page 5)

2-4. FRONT PLATE ASSY

(Page 5)

2-5. HOUSING ASSY, HANGER

(Page 6)

2-2. EAR PAD, EAR PAD HOLDER

(Page 4)

Note: Please detach the CABLE WITH PLUG beforehand.

MDR-Z7

Note: Follow the disassembly procedure in the numerical order given.

2-2. EAR PAD, EAR PAD HOLDER

Note 1: L-ch and R-ch can be similarly disassembled.

The illustration of R-ch is used for explanation.

1Turn over the ear pad. 2screw (P2)

ditch

housing block ear pad block

boss

6ear pad holder

5ear pad

hole

ditch

4Remove the protrusion

from the ear pad hole.

3Remove the ear pad block

in the direction of the arrow.

Turn in the direction of

the arrow until it stops.

Inside color is [black]. Inside color is [red].

–L-ch ––R-ch –

Note 2: When installing the ear pad block to the housing block,

align the ear pad block boss with the housing block ditch.

Note 3: When installing the ear pad, check the inside color.

MDR-Z7

2-3. HOUSING BLOCK

Note:L-ch and R-ch can be similarly disassembled.

The illustration of R-ch is used for explanation.

2-4. FRONT PLATE ASSY

Note: L-ch and R-ch can be similarly disassembled.

The illustration of R-ch is used for explanation.

1ornamental screw

(M1.7)

1ornamental screw

(M1.7)

2shaft stopper

3twist holder

4axis cushion

5housing block

1three screws

(P2)

1three screws

(P2)

4front plate assy

2Remove the front plate assy

in the direction of the arrow.

3Remove the solder

[blonze]

3Remove the solder

[red]

boss

ditch

front plate assy

marking

:LUHVHWWLQJ

[bronze]

(no marking side)

Direction in which

to apply the solder.

[red]

(marking side)

cable with jack

MDR-Z7

2-5. HOUSING ASSY, HANGER

Note 1: L-ch and R-ch can be similarly disassembled.

The illustration of R-ch is used for explanation.

4housing assy

2two screws

(P2)

3housing holder

3housing holder 2two screws

(P2)

6hanger

5axis cushion

1rear seal

Note 2: When installing the rear seal,

affix the glossy surface to

the housing assy.

groove

axis cushion

Align the directions

of the slopes.

$[LVFXVKLRQDQG+DQJHUKROGHUVHWWLQJ

hanger

hanger holder

–KDQJHUERWWRPYLHZ–

MDR-Z7

SECTION 3

EXPLODED VIEWS

1 4-541-036-01 PAD (R), EAR (R-ch)

2 4-541-034-01 HOLDER, EAR PAD

3 3-080-204-31 SCREW, TAPPING, P2

4 3-080-205-21 SCREW, TAPPING, P2

5 4-541-023-01 SEAL, REAR

6 4-541-025-01 HOLDER, HANGER

7 4-541-076-01 CUSHION, AXIS

8 4-541-013-01 HANGER (R) (R-ch)

9 4-540-997-01 HOLDER, TWIST

10 4-540-998-01 STOPPER, SHAFT

11 4-541-006-01 ORNAMENTAL SCREW M1.7 (TAPPING)

DR2 X-2590-515-1 PLATE (R) ASSY, FRONT (SV) (Including Driver)

(R-ch)

HJ2 X-2590-513-1 HOUSING (R) ASSY (SV)

(Including Cable with jack) (R-ch)

Ref. No. Part No. Description Remark Ref. No. Part No. Description Remark

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. HOUSING (R-ch) SECTION

• Front view

–L-ch –

housing (L-ch), head band section

–R-ch –

HJ2

DR2

MDR-Z7

3-2. HOUSING (L-ch), HEAD BAND SECTION

• Rear view

51 4-541-035-01 PAD (L), EAR (L-ch)

52 4-541-034-01 HOLDER, EAR PAD

53 3-080-204-31 SCREW, TAPPING, P2

54 3-080-205-21 SCREW, TAPPING, P2

55 4-541-023-01 SEAL, REAR

56 4-541-025-01 HOLDER, HANGER

57 4-541-076-01 CUSHION, AXIS

58 4-541-012-01 HANGER (L) (L-ch)

59 4-540-997-01 HOLDER, TWIST

60 4-540-998-01 STOPPER, SHAFT

61 4-541-006-01 ORNAMENTAL SCREW M1.7 (TAPPING)

DR1 X-2590-514-1 PLATE (L) ASSY, FRONT (SV) (Including Driver)

(L-ch)

HB1 X-2590-510-1 BAND ASSY, HEAD (SV) (US, CND, E, AUS, CH)

(See Note)

HB1 X-2590-511-1 BAND ASSY, HEAD (SV) (AEP, UK) (See Note)

HJ1 X-2590-512-1 HOUSING (L) ASSY (SV) (Including Cable with jack)

(L-ch)

Ref. No. Part No. Description Remark Ref. No. Part No. Description Remark

–L-ch –

–R-ch –

HB1

57 54

HJ1

DR1

Note: A serial number is marked on the unit’s head

band arm. Therefore, when the head band assy

is replaced, the serial number changes.

MDR-Z7

Ref. No. Part No. Description Remark

SECTION 4

ACCESSORIES

4-538-073-11 MANUAL, INSTRUCTION

(ENGLISH, FRENCH, SPANISH) (US, CND)

4-538-073-21 MANUAL, INSTRUCTION

(ENGLISH, FRENCH, GERMAN, SPANISH,

DUTCH, ITALIAN, PORTUGUESE, POLISH,

GREEK, CZECH, HUNGARIAN, BULGARIAN,

SLOVAK, SLOVENIAN, ROMANIAN) (AEP, UK)

4-538-073-31 MANUAL, INSTRUCTION

(ENGLISH, RUSSIAN, TRADITIONAL CHINESE,

KOREAN, UKRAINIAN) (E, AUS)

4-538-073-41 MANUAL, INSTRUCTION (SIMPLIFIED CHINESE)

(CH)

501 1-566-410-41 ADAPTOR, PLUG (Gold-plated unimatch plug

adaptor (stereo phone plug ystereo mini jack))

502 1-848-516-11 CABLE WITH PLUG (Headphone cable

(Approx. 3 m, silver-coated OFC strands,

gold-plated stereo mini plug)) (AEP, UK)

502 1-848-516-21 CABLE WITH PLUG (Headphone cable

(Approx. 3 m, silver-coated OFC strands,

gold-plated stereo mini plug))

(US, CND, E, AUS, CH)

503 1-848-517-11 CABLE WITH PLUG (BALANCED)

(Balanced-connection headphone cable

(Approx. 2 m, silver-coated OFC strands,

3-pole mini plug x 2)) (AEP, UK)

503 1-848-517-21 CABLE WITH PLUG (BALANCED)

(Balanced-connection headphone cable

(Approx. 2 m, silver-coated OFC strands,

3-pole mini plug x 2)) (US, CND, E, AUS, CH)

502

Headphone cable

(Approx. 3 m, silver-coated OFC strands, gold-plated stereo mini plug)

503

Balanced-connection headphone cable

(Approx. 2 m, silver-coated OFC strands, 3-pole mini plug × 2)

501

Gold-plated unimatch plug adaptor

(stereo phone plug ystereo mini jack)

MDR-Z7

REVISION HISTORY

Ver. Date Description of Revision

1.0 2014.09 New

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