Sony mdr cd 777 service manual

Page 1

MDR-CDTI'I/CDBBB

SERVICE MANUAL

Discard MDR-CD777 SERVICE MANUAL
(No. 995355241) previously issued.
This SERVICE MANUAL contains it.

US Model

MDR-CD777/CD888

Canadian Model
AEP Model

UK Model

E Model

MDR-CD777

SPECIFICATIONS

Type Dynamic, closed

Driver units ¢ 40mm sapphire-
evaporatcd diaphragm.
dome type

Impedance 53 ohms at 1 kllz

Sensitivity 106 dB/mw

Power handling capacity

1000mw
Frequency response
5430,000 llz
Cord Approx 3m long class 1

LC»0FC litz cord with a
goldrplaled stereo
unimatch plug

Weight Approx. 2203 Z. MOUNTING DIAGRAM
(wi tliout cord) copper
1. DISASSEMBLY pp" 7% ;
RED RED
[DRIVER REMOVAL] redmark
0 Follow the disassembly procedure in (he numerical order given. / red mark
Remove 4 latches as illustrated. (D () mm, ,L/ 0%

\W/ @/

driver (HI
RED\W GRN

copper

broa def/a t
.tcre wdriver

[EAR PAD INSTALLATION}
0 Insert ear pad in the groove of housing as illustrated.

@After that, set ear pad in housing by pushing it.
earpad

housing

STEREO HEADPHONES
SONE

Page 2

MDR-CD777/CD888

3. EXPLODED VIEW AND PARTS LIST

NOTE:

0 The mechanical parts with no referenoe 0 Due to standardization. parts with part
number In the exploded VleWS are not number suffix -XX and »X may be dif»
supplIedI ferent from the parts specified in the

o The oonslrugiion parts of an assembled components used on the set.

rt_are Indicated WIth a collation num- 0 Screw (# mark) list is given in the last of
r In the remark column. this parts list.

0 Items marked *" are not stocked since
they are seldom required for routine
sen/Ice. Some delay should be antioi»
pated when ordering these items.

RetNor Part Nor Description Remark Ref.Nn. Part No. Description Remark
1 X-2133-108-I HOUSING (L) ASSVu-(CDIII) 10 X-2133-l09-1 HOUSING (R) ASSN-(00777)
1 X-494I-518-1 HOUSING (L) ASSV---(CDBSII) 10 X-494I-519-I HOUSING (R) ASSY-"(CDIIMD
2 2-133-171-[11 BUSHING 11 X-2133-110-I RAND ASSY. NEAD'--(CDIII)
3 t 2-133-157-01 PLATE (A) (LEFT). FRONT II X-494I-521-I RAND ASSY. HEAD-"(008811)
I 1413-12941 STOPPER. DRIVER
5 Z-I33-138-0I REGISTER (A). FRONT 12 1505091-11 DRIVER
13 1-574-263-21 CORD WITH PLUG
6 2-133-165-DI RING (LEFT). EAR PAD IA I~505-589-11 ADAPTOR PLUG
7 (2133-1074 PAD ASSY. EAR RI 7-685-I02-19 SCREW +P 2X4 TYPE? NON-SLIT
8 2-133-166-01 RING (RIGHT). EAR PAD
9 * 2-133-153-01 PLATE (A) (RIGHT). FRONT
English
_ 91AO526-l
Sony Corporatlon Printed in Japan
9-956-206-11 General Audio Group © 1991, 1

(Including 9953'552'1 _2_ Published by Customer Relations and Service Group