Sony MDR-7506 User manual

MDR-7506
SERVICE MANUAL
STEREO HEADPHONES
US Model
AEP Model
9-956-092-13
2002G0200-1
© 2002.07
Sony Corporation
Personal Audio Company
Published by Sony Engineering Corporation
Ver 1.1 2002.07
SPECIFICATIONS
Type Circum-aural, closed
Driver units 40 mm dia., dynamic type
Impedance 63 ohms at 1 kHz
Sensitivity 106 dB/mW
Rated power 0.5 W
Power handling capacity 1 W
Frequency response 5 - 30,000 Hz
Cord 3 m (extended length) coiled cord with a
stereo unimatch plug
Weight Approx. 230 g (without cord)
1. DISASSEMBLY
Note : Follow the disassembly procedure in the numerical order given.
2. MOUNTING DIAGRAM

2
MDR-7506
Ref. No. Part No. Description Remarks Ref. No. Part No. Description Remarks
NOTE:
• -XX, -X mean standardized parts, so they may
have some differences from the original one.
• Items marked “*” are not stocked since they
are seldom required for routine service. Some
delay should be anticipated when ordering these
items.
• The mechanical parts with no reference number
in the exploded views are not supplied.
• Hardware (# mark) list and accessories are
given in the last of this parts list.
3. EXPLODED VIEWS
Ver 1.1 2002.07
1 X-2113-124-1 PAD ASSY, EAR
2 2-113-129-01 STOPPER, DRIVER
*4 2-113-152-02 REGISTER, FRONT
*5 2-113-140-01 PLATE, FRONT
6 2-113-137-01 BUSHING
7 X-4941-333-1 HOUSING (LEFT) ASSY
8 X-4941-334-1 HOUSING (RIGHT) ASSY
9 2-113-133-11 HANGER (RIGHT)
10 2-113-132-11 HANGER (LEFT)
11 2-113-134-11 CASE, HINGE
12 7-671-113-01 STEEL, BALL 3
13 2-113-146-01 SPRING, COMPRESSION
14 X-2113-116-1 CASE (LEFT) ASSY, CLICK
*15 2-113-122-01 BAND, HEAD
16 X-2113-112-1 CUSHION ASSY, HEAD
*17 2-113-124-11 LID (LEFT), CLICK CASE
18 X-2113-101-1 SLIDER (LEFT) ASSY
19 2-113-123-11 LID, HINGE CASE
20 2-113-130-11 LID (LEFT), HANGER
22 7-685-235-19 SCREW +KTP 2.6X10 TYPE2 SLIT
23 7-685-232-19 SCREW +KTP 2.6X5 TYPE2NON-SLIT
24 X-2113-102-1 SLIDER (RIGHT) ASSY
25 X-2113-115-1 CASE (RIGHT) ASSY, CLICK
*26 2-113-125-11 LID (RIGHT), CLICK CASE
27 2-113-131-11 LID (RIGHT), HANGER
28 2-113-149-01 RING, URETHANE
29 1-580-792-21 CORD (WITH PLUG)
30 1-542-491-11 DRIVER (040F001P)
31 1-506-589-11 ADAPTOR, PLUG
******************************************************
ACCESSORIES
**********
2-113-147-11 CASE, SOFT

3
MDR-7506
MEMO

REVISION HISTORY
Clicking the version allows you to jump to the revised page.
Also, clicking the version at the upper right on the revised page allows you to jump to the next revised
page.
Ver. Date Description of Revision
1.0 1990.10 New
1997.01 REVISED
1.1 2002.07 Change of exploded views parts list. (ENG-02030)
MDR-7506