MDR-D777LP/D777SL
US Model
MDR-D777LP
E Model
MDR-D777SL
SERVICE MANUAL
STEREO HEADPHONS
SPECIFICATIONS
Ver. 1.0 2006.09
Sony Corporation
Personal Audio Division
Published by Sony Techno Create Corporation
9-887-420-01
2006I02-1
© 2006.09
z
DRIVER TERMINAL
Note : Position of puls terminal may become a change
DRIVER
(L-CH)
Copper (GND)
Copper
(GND)
Copper
(GND)
Red (R-CH)
Green
(L-CH)
Stereo mini plug
Marking
Marking
DRIVER
(R-CH)
Plus terminal is making
with felt tip pen.
(The position uncertainty)
Marking (+ side)
Relay terminals
(No inside connection)
Type
Closed, dynamic
Driver units
40 mm, dome type
Power handling capacity
1,500 mW (IEC*)
Impedance
24
at 1 kHz
Sensitivity
106 dB/mW
Frequency response
8 - 80,000 Hz
Cord
Approx. 1.2 m (47 1/4 in) (D777LP) / 0.6m (D777SL)
single sided OFC
Mass
Approx. 166 g (6 oz) (without cord)
Plug
Gold-plated stereo mini plug, L type (D777LP)
Supplied accessories
Carrying pouch (1) / Operating Instructions (1)
Extension cord (D777SL) (1)
* IEC = International Electrotechnical Commission
Design and specifications are subject to change without notice.
SECTION 1
SERVICING NOTES
Photo : MDR-D777SL
MDR-D777LP/D777SL
2
Ref. No.
Part No.
Description
Remarks
Ref. No.
Part No.
Description
Remarks
SECTION 2
EXPLODED VIEWS
2-1.
HEADBAND, HOUSING (L) SECTION
1
1-833-292-11 CORD (WITH PLUG) (1.2m) (D777LP)
1
1-833-293-11 CORD (WITH PLUG) (0.6m) (D777SL)
2
X-2176-197-1 HOUSING (L) ASSY
3
2-688-739-01 BUSHING
4
2-893-836-01 RESISTER (A), HOUSING
5
1-542-703-11 DRIVER (040F021)
6
2-688-740-01 PACKING, HOUSING
7
2-685-612-01 PLATE (L), FRONT
8
3-253-143-01 SCREW (B2.6), (+) P TAPPING
9
2-688-749-01 RESISTOR
10
2-895-680-01 RESISTOR, PROTECTOR
11
2-688-748-01 SCREEN
12
2-688-747-01 PAD, EAR
13
2-685-615-01 HANGER (R)
14
2-685-617-01 RETAINER, SLIDER
15
2-892-991-01 LID (R), HANGER
16
3-254-058-11 SCREW
17
2-898-709-01 PIN, PARALLEL (DIA. 2X16)
18
2-888-576-01 CAP, SLIDER
19
X-2176-196-1 SERVICE (HEADBAND ASSY)
20
2-685-616-01 LID (L), HANGER
21
2-685-614-01 HANGER (L)
22
2-892-294-01 SHEET, ADHESIVE
23
2-888-247-01 CAP, ORNAMENTAL
NOTE:
·
-XX, -X mean standardized parts, so they
may have some difference 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.
1
2
22
23
3
4
5
6
7
8
9
10
11
12
13
14
14
15
20
21
16
18
18
17
17
19
housing (R) section
MDR-D777LP/D777SL
3
2-2.
HOUSING (R) SECTION
Ref. No.
Part No.
Description
Remarks
Ref. No.
Part No.
Description
Remarks
51
X-2176-198-1 HOUSING (R) ASSY
52
2-893-836-01 RESISTER (A), HOUSING
53
1-542-703-11 DRIVER (040F021)
54
2-688-740-01 PACKING, HOUSING
55
2-685-613-01 PLATE (R), FRONT
56
2-688-749-01 RESISTOR
57
2-895-680-01 RESISTOR, PROTECTOR
58
2-688-748-01 SCREEN
59
3-253-143-01 SCREW (B2.6), (+) P TAPPING
60
2-688-747-01 PAD, EAR
61
2-892-294-01 SHEET, ADHESIVE
62
2-888-247-01 CAP, ORNAMENTAL
ACCESSORIES
************
1-790-035-61 CORD (WITH PLUG) (EXTENSION) (D777SL)
2-888-579-01 POUCH, CARRYING
2-890-407-11 MANUAL, INSTRUCTION (ENGLISH, SPANISH)
(D777LP)
2-890-407-21 MANUAL, INSTRUCTION (ENGLISH,
SIMPLIFIED CHINESE, TRADITIONAL CHINESE,
KOREAN) (D777SL)
51
52
61
62
53
54
55
56
58
59
60
57
MDR-D777LP/D777SL
REVISION HISTORY
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Ver.
Date
Description of Revision
1.0
2006.09
New