Sony MDR-7506 Service Manual

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

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

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