Sony MDR-7505 Service manual
MDR-7505
SERVICE MANUAL
Ver 1.0 1999. 08
SPECIFICATIONS
Type : Dynamic, Closed
Driver unites : ø40 mm, dome type
Impedence : 40 Ω at 1 kHz
Sensitivety : 102 dB/mW
Power handling capacity
: 1000 mW
Frequency response
: 10 – 25,000 Hz
Cord : Coiled 1 – 3 m long single-sided OFC-litz cord
with a gold plated stereo unimatch plug
Mass : Approx. 225 g (wihtout cord)
Supplied accessory
: Soft case (1)
[WIRING DIAGRAM]
(RED)
(BRONZE)
Marking
DRIVER
(R)
(RED)
DRIVER
(L)
(BRONZE)
(RED)
US Model
AEP Model
(BRONZE)
Marking
Design and specifications are subject to change without notice.
Features
• Monitoring headphones for DJ and remix use
• Swivel earcup allows easy single sided monitoring on shoulders
• 40 mm driver unit for high quality sound
• Coiled OFC litz cord
• Screw type gold plated stereo unimatch plug for secure
connection
• Convenient folding design
ACCESSORIE
Ref. No. Part No. Description Remarks
ACCESSORIES & PACKING MATERIALS
******************************
4-954-463-01 CASE, SOFT
(GREEN)
STEREO HEADPHONES
MICROFILM
DISASSEMBLY
Note : Disassemble the unit in the order as shown below.
SECTION 1
Set
Driver (L side)
Driver (R side)
Cord (with plug)
Hunger (R)
Hunger (L)
Note : Follow the disassembly procedure in the numerical order given.
1-1. DRIVER (L SIDE)
5
Remove the
five solderings
Precaution during installation
Driver (L side)
6
Driver (headphone) (040F016)
4
Rotate it in the direction of the arrow.
2
Three screws (+P2.6 × 6)
1
Ear pad
Marking side
Green
Cord
(with plug)
1-2. CORD (WITH PLUG)
3
Two claws
Natural
4
Red
Harness
1
Remove the wiring bracket.
2
Cord
(with plug)
3
Front assembly plate
Precaution during installation
Hook the loop of the
cordaround the rib of
the portion A.
A
Fasten the cord at the specified
dimension as shown, to cut the
excessive length.
15 mm 15 mm
2
Housing
ring (L)
1
3
Housing (L)
Bushing
— 2 —
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