Sony MDRXD-400 Service manual

MDR-XD400

SERVICE MANUAL

Ver. 1.1 2005.02

SPECIFICATIONS

Type: Closed, dynamic
Driver units: 50 mm, dome type
Power handling capacity: 3,000 mW (IEC*)
Impedance: 24 Ω at 1 kHz
Sensitivity: 106 dB/mW
Frequency response: 5
Cord: 2.5 m (8.2 ft), OFC litz cord
Plug: Gold-plated stereo mini plug
Mass: Approx. 260 g (9.18 oz) without cord
Supplied accessories: Gold-plated Unimatch plug adapter (1)

* IEC = International Electrotechnical Commission

Design and specifications are subject to change without notice.

– 30,000 Hz

Extension cord (2.5 m, stereo mini jack y stereo mini plug) (1)

US Model

AEP Model

E Model

9-879-480-02

2005B05-1
© 2005.02

STEREO HEADPHONES

Sony Corporation

Personal Audio Company
Published by Sony Engineering Corporation

MDR-XD400

SECTION 1

DISASSEMBLY

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

DRIVER (Lch/Rch)

(For both left and right headphones, disassemble through the same procedure)

4

Rotate the driver (Lch/Rch) in
the arrow direction to remove.

5

front plate assy

1

ear pad

2

four screws
(B2.6)

Connect a lead wire of the cord (with plug) (green) to the terminal
with a marking.
(The location of a marking may differ from the illustration.)

3

Remove five solders of the head
band cord and cord (with plug).

Natural color lead wire
connecting locations

Red color lead wire
connecting locations

Natural color lead wire
connecting locations

cord (with plug)head band cord

– DRIVER (Lch) –

Connect a lead wire of the head band cord (red) to the terminal
with a marking.
(The location of a marking may differ from the illustration.)

3

Remove two solders
of the head band cord.

– DRIVER (Rch) –

head band cord

2