Sony MDR-NC6 User manual

SERVICE MANUAL
NOISE CANCELING
HEAD PHONES
Tourist Model
SPECIFICATIONS
MDR-NC6
Ver 1.0 2004.10
9-879-196-01
2004J05-1
© 2004.10
Sony Corporation
Personal Audio Company
Published by Sony Engineering Corporation
Note on chip component replacement
•Never reuse a disconnected chip componet
•Notice that the minus side of a teamtalum capacitor may be damaged by
heat
General
Type
Open air, dynamic
Driver units
38 mm, dome type
Power handling capacity
100mW
Impedance
20 Ωat 1 kHz (when the power is on)
65 Ωat 1 kHz (when the power is off)
Sensitivity
106 dB/mW (when the power is on)
104 dB/mW (when the power is off)
Frequency response
30 – 15,000 Hz
Frequency range of active noise attenuation
40 – 1,500 Hz, more than 10 dB at 300 Hz
Cord
1.5m (59
1
/
8
inches)
PlugGold plated L-sharped stereo mini plug
Power source
DC 1.5 V, 1 ⋅R03 (size AAA) battery
Mass
Approx. 150 g (5.3 oz) including battery
Supplied accessories
Plug adaptor for in-flight use* (single/dual) (1)
Carrying case (1)
Operating Instructions (1)
* May not be compatible with some in-flight music services.
Design and specifications are subject to change without notice.
Battery life
Battery Approx. hours*
1
Sony alkaline LR03 (size AAA)/AM4(N) battery 30 hours*
2
Sony manganese R03/UM-4 (NU) (size AAA) battery 15 hours*
2
*
1
1 kHz, 1 mW + 1 mW input
*
2
Time stated above may vary, depending on the temperature or conditions of use.
When to replace the battery
Replace the battery with a new one when the POWER indicator dims. The noise canceling
feature may not work correctly if battery power is low.

2
MDR-NC6 SECTION 1
GENERAL
Folding the headphones
The driver units rotate to make them flat for easy storage in the carring case (supplied) or a seat
pocket.
Listening to music
1
Connect the headphones to the AV equipment.
* WALKMAN is a trademark of Sony Corporation.
**May not be compatible with some in-flight music services.
2 Turn on the power of the headphones.
The POWER indicator lights in red. When the power is turned on, ambient
noise is reduced, and you can listen to music more clearly at a lower volume.
3 Put on the headphones so that the ear pads cover your ears.
4 Turn on the power of the AV equipment.
Notes on using on the airplane
• The supplied plug adaptor can be connected to dual and stereo mini jacks.
• Do not use the headphones when use of electronic equipment is prohibited or when use of
personal headphones for in-flight music services is prohibited.
If you have any questions or problems concerning the system that are not covered in this
manual, please consult the nearest Sony dealer.
After listening to music
Turn off the power of the headphones.
Notes
• The noise canceling function is only effective for noise in the low frequency band. Although
noise is reduced, it is not canceled completely.
• Do not cover the microphone of the headphones with your hands. The noise canceling
function may not work properly.
• If you cover the microphone of the headphones with your hands, howling may occur.
In this case, move your hands away from the microphone.
• The noise canceling effect may vary depending on how you wear the headphones.
• You can use the headphones without turning on the power. In this case, the noise canceling
function is not active, and the headphones operate as passive headphones.
Features
• Noise canceling headphones reduce ambient noise, and provide a quieter environment to
enhance audio entertainment. Ambient sound is synthesized with an anti-sound signal
produced by the noise canceling circuit, and reduced. (Over 10 dB is reduced at 300 Hz.)
• Slim swivel folding style for smart carrying and easy strage.
• Neodymium magnets are used to deliver powerful sound.
• Operates as passive headphones when noise canceling circuit is not activated.
• Plug adaptor is supplied to connect directly to stereo or dual jack of in-flight music services.
Installing a battery
1
Open the lid of the battery case on the right inner side of the headphone.
2 Insert one R03 (size AAA) battery by matching the eand Eon the battery to
the e and Ein the battery case.
3 Close the lid.
Slide the battery case
lid and unlock it.
Slide the battery case
lid and lock it.
Battery case
When connecting to the stereo mini jack
of the remote control’s jack supplied
with a WALKMAN*, etc
Plug adaptor** To headphone jack on airplane seats
L-shaped Stereo
mini plug
Microphone
for stereo mini jacksfor dual jacks
Remote
contorol
WALKMAN*, etc
Battery case
This section is extracted from
instruction manual.

3
MDR-NC6
SECTION 2
DISASSEMBLY
Note: Follow the disassembly procedure in the numerical order given.
2-1. MAIN (L), (R) BOARD
POSITION OF LEAD WIRES
1 ear pad
4 two claws
4 claw
5 housing cap
sub assy
3 Remove the driver unit sub ass
y
in the direction of arrow.
8 two rear lid stoppers
9 switch knob (R-CH)
S1
0 MAIN (L), (R) board
7 electric condenser
microphone
(MIC1), (MIC2)
6 Remove eleven solders (L-CH)./
Remove ten solders (R-CH).
R-CHL-CH
2 two baffle
stoppers
Note: On installation of MAIN (R) board,
adjust the position of switch (S1)
and switch knob (R-CH).
L/R translation cord
L/R translation cord
cord (with plug)
(P1)
-MAIN (R) board-
-MAIN (L) board-
electric condenser
microphone
(MIC2)
electric condenser
microphone
(MIC1)
BATT
RED
RED
RED
CLEAR RED
RED
WHITE
YELLOW
YELLO
W
BROWN
BLACK
BLACK
BLACK
BLACK
GREEN
GREEN GREEN GREEN
GREEN
CLEAR speaker
(SP2)
speaker
(SP1)

4
MDR-NC6
SFR1 (L-CH)
SFR2 (R-CH)
sheet
housing cap sub assy
NOISE CANCELING AMOUNT ADJUSTMENT
Preparation:
Procedure:
1. Generate a sine wave of specific frequency (250 Hz) from a
AFoscillator, and output it fromaspeakerplacedatthe forward
position,
2. Remove the housing cap sub assy and sheet.
3. Mount this set on the head, and turn on the POWER switch.
4. With this set mounted, rotate the SFR1 (Lch) and SFR2 (Rch)
so that the volume from the speaker becomes lowest aurally.
(See below figure)
–MAIN (L) Board– –MAIN (R) Board–
Adjustment Location:
AF oscillator
sine wave 250 Hz
amplifier
speake
r
+
–
SECTION 3
ELECTRICAL ADJUSTMENT SECTION 4 DIAGRAMS
•NoteforPrintedWiringBoardsand SchematicDiagrams
Note on Schematic Diagram:
•All capacitors are in µF unless otherwise noted. (p: pF) 50 WV or
less are not indicated except for electrolytics and tantalums.
•All resistors are in Ωand 1/4W or less unless otherwise specified.
•C: panel designation.
•A: B+ Line.
•H: adjustment for repair.
•Power voltage is dc 1.5V and fed with regulated dc power supply
from battery terminal.
•Voltages and waveforms are dc with respect to ground under no-
signal conditions.
•Voltages are taken with a VOM (Input impedance 10 MΩ).
Voltage variations may be noted due to normal production toler-
ances.
•Waveforms are taken with a oscilloscope.
Voltage variations may be noted due to normal production toler-
ances.
•Circled numbers refer to waveforms.
•Signal path.
F: Audio signal (power off)
J: Audio signal (power on)
Note on PrintedWiring Boards:
•X: parts extracted from the component side.
•Y: parts extracted from the conductor side.
•: Pattern from the side which enables seeing.
•Waveforms
1
Q15 (Base-1)
500 mV/DIV, 50 µ s/DIV
66 µ s820 mVp-p
2
Q15 (Base-2)
500 mV/DIV, 50 µ s/DIV
66 µ s1 Vp-p
– MAIN (R) Board –
SFR1 SFR2

MDR-NC6
55
MDR-NC6
4-1. PRINTED WIRING BOARDS
B
C
E
B
C
E
Q13
B
C
E
Q1
Q5
B
1
IC1
4
85
C
E
Q9
B
C
E
Q3
B
C
E
Q7
R5
R1
R7
R19
R15
R17
R21
R13
R3
R33
R35
SFR1
R11
R23
R9
R27
R25
R37
R29
R44
R31
C27
JR001
C5
JR003
C23
C21
C7
C1 +
C13 +
C3 +
C15 +
C25 +
C17 +
C19 +
B
C
E
Q11
C11 +
C36 +
C9 +
C35 +
MAIN (L) BOARD
1-863-573- (11)
11
B
C
E
B
C
E
Q14
B
C
E
Q2
Q6
14
4
BLK
GRN
85
1B E 2B
1C 2C
2B E 1B
2C 1C
B
C
E
Q4
B
C
E
Q8
B
C
E
Q10
Q16
Q15
IC3
IC2
R6
R4
R26
R12
R2
R10
R8
R18
R14
R22
R40
R41
R42
R39
R24
R16
R34
R36
SFR2
R20
R28
R38
R45
R30
R32
C8
JR004
C33
C31
C30
C24
C32
C22
C28
C6
C2 +
C34 +
C4 +
C29 +
C14 +
C16 +
C26 +
C18 +
C20 +
C12 +
C10 +
MAIN (R) BOARD
1-863-574- (11)
11
B
C
E
Q12
JR002
R43
MIC2
(R-CH)
–
+
BRN YEL
SP2
(R-CH)
–
+
BLK
GRN
MIC1
(L-CH)
–
+
RED
YEL
SP1
(L-CH)
–
+
1
2
3
BLK
RED
CLEAR
RED
WHT
GRN
DRY BATTERY
SIZE "AAA"
(IEC DESIGNATION R03)
1PC. 1.5V
13
54
D1
POWER
S1
(POWER)
ON
OFF
3 1
BLK
2
RED
4
GRN
GRN
RED
CLEAR
CLEAR
P1
A
B
C
D
E
F
G
1 2 3 4 5 6 7 8 9 10 11 12
•Semiconductor
Location
Ref. No. Location
D1 C-7
IC1 D-4
IC2 D-10
IC3 D-8
Q1 B-4
Q2 B-10
Q3 B-4
Q4 B-10
Q5 B-5
Q6 B-10
Q7 B-3
Q8 B-9
Q9 D-3
Q10 D-9
Q11 E-4
Q12 E-10
Q13 B-3
Q14 B-9
Q15 F-8
Q16 E-8

MDR-NC6
66
MDR-NC6
4-2. SCHEMATIC DIAGRAM BOARD
IC1
Q2 Q4
Q1 Q3
IC2
Q13
Q14
R1
R2
R3
R4
R6
R5
R7
R8
R9
R10
R11
R12
R21
R22
R23
R24
R25
R26
R27
R28
R29
R30
R31
R32
R33
R35
R36
R37
R38
R39 R40 R41 R42
R43
R44
C1
C2
C3
C4
C5
C6
C7
C8
R17 R19
C9
C10
R20R18
C11
C12
C13
C14
C15
C16
R45
C21
C22
C24
C27
C28
C29
C30
C31
C32
C33
D1
IC3
C34
C35
C36
P1
Q5 Q7
Q6 Q8
Q10
Q9
Q11
Q12
SP1
MIC1
SP2
MIC2
Q16
C23
SFR1
SFR2
R13
R15
R14
R16
Q15
R34
S1
C25
C26
C20
C18
C19
C17
NJM2076
DTC343TK DTC343TK
DTC343TK DTC343TK
NJM2076
2SC2412
2SC2412
18
18
150k
150k
2.2
2.2
18k
18k
10k
10k
6.8k
6.8k
2.2
2.2
2.2
2.2
1.5k
1.5k
470
470
680
680
100
100
470k
5.6k
5.6k
1k
1k
100 10k 10k 10k
0
220
10
16V
10
16V
47
4V
47
4V
0.47
0.47
0.47
0.47
2.2 2.2
100
4V
100
4V
2.22.2
100
4V
100
4V
47
4V
47
4V
47
4V
47
4V
220
0.022
0.022
0.015
0.047
0.047
100
4V
3300p
3300p
0.047
0.1
L-1034ID
S-817B11AMC
CWA-T2
10
16V
10
16V
100
4V
DTC323TK DTC323TK
DTC323TK DTC323TK
2SA1182
2SA1182
2SA1182
2SA1182
FMA4
0.015
10K
10K
2.2
2.2
2.2
2.2
FMW1
470k
4.7 6.3V
4.7 6.3V
4.7
6.3V
4.7
6.3V
4.7
6.3V
4.7
6.3V
L-AUDIO
+VCC
+B
GND
GND
R-AUDIO
R-AUDIO
+VCC
+B
GND
R-AUDIO
-B
+B
-1 -2
-1 -2
SWITCHING
AMP
BUFFER
BUFFER
AMP
AMP
AMP
(L-CH)
(L-CH)
(R-CH)
(R-CH)
POWER AMP
POWER AMP
Q1,3,5,7
SWITCHING
Q2,4,6,8
OSC
LED DRIVE
POWER
DRY BATTERY
SIZE"AAA"
(IEC DESIGNATION R03)
ON
OFF
OI
G
+1.1V REGULATOR
4
1
14
1PC. 1.5V
(POWER)
• TOTAL CURRENT
10 - 15 mA
•See page 4 forWaveforms

7
MDR-NC6
SECTION 5
EXPLODED VIEWS
Ref. No. Part No. Description Remark Ref. No. Part No. Description Remark
12-148-074-01 PAD, EAR
22-148-072-01 CUSHION, BAFFLE
3X-2024-979-1 SUB (R) ASSY, DRIVER UNIT
(including SP2 (R-CH))
42-108-838-01 KNOB, SWITCH
52-108-831-01 CUSHION, PC BOARD
6A-1066-609-A MAIN (R) BOARD, COMPLETE
72-148-075-01 CUSHION, LED
82-108-791-01 CUSHION, ECM
92-108-689-01 HOUSING (R)
10 X-2024-981-1 SUB (R) ASSY, HOUSING CAP
11 X-2024-980-1 SUB (L) ASSY, DRIVER UNIT
(including SP1 (L-CH))
12 A-1066-608-A MAIN (L) BOARD, COMPLETE
13 2-108-688-01 HOUSING (L)
14 X-2024-982-1 SUB (L) ASSY, HOUSING CAP
15 X-2024-983-1 BAND SUB ASSY, HEAD
16 2-108-684-01 LID, BATTERY
17 2-179-786-01 STOPPER, REAR LID
18 2-179-785-01 STOPPER, BAFFLE
MIC1 1-542-260-61 MICROPHONE, ELECTRET, CONDENSER (L-CH)
MIC2 1-542-260-61 MICROPHONE, ELECTRET, CONDENSER (R-CH)
P1 1-829-963-11 CORD (WITH PLUG)
•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
numberin the explodedviewsarenot supplied.
•Accessories are given in the last of the
electrical parts list.
NOTE:
•-XX and -X mean standardized parts, so they
may have some difference from the original
one.
•Color Indication of Appearance Parts
Example:
KNOB, BALANCE (WHITE) . . . (RED)
↑↑
Parts Color Cabinet's Color
1
1
2
2
3
(including SP2(R-CH))
11
(including SP1 (L-CH))
4
5
5
6
7
8
8
9
10
12
13 14
15
17
17
18
18
16
not supplied SP2 (R-CH)
not supplied SP1 (L-CH)
MIC1
MIC2
P1

8
MDR-NC6 SECTION 6
ELECTRICAL PARTS LIST
Ref. No. Part No. Description Remark Ref. No. Part No. Description Remark
NOTE:
•Due to standardization, replacements in the
parts list may be different from the parts
specified in the diagrams or the components
used on the set.
•-XX and -X mean standardized parts, so they
may have some difference from the original
one.
•RESISTORS
All resistors are in ohms.
METAL: Metal-film resistor.
METAL OXIDE: Metal oxide-film resistor.
F: nonflammable
•Items marked “*” are not stocked since they
are seldom required for routine service.
Some delay should be anticipated when
ordering these items.
•SEMICONDUCTORS
In each case, u: µ, for example:
uA... : µA... uPA... : µPA...
uPB... : µPB... uPC... : µPC...
uPD... : µPD...
•CAPACITORS
uF: µF
•COILS
uH: µH
MAIN (L)
A-1066-608-A MAIN (L) BOARD, COMPLETE
************************
< CAPACITOR >
C1 1-104-913-11 TANTALUM CHIP 10uF 20% 16V
C3 1-113-688-11 ELECT CHIP 47uF 20% 4V
C5 1-107-823-11 CERAMIC CHIP 0.47uF 10% 16V
C7 1-107-823-11 CERAMIC CHIP 0.47uF 10% 16V
C9 1-113-689-11 ELECT CHIP 100uF 20% 4V
C11 1-113-689-11 ELECT CHIP 100uF 20% 4V
C13 1-113-688-11 ELECT CHIP 47uF 20% 4V
C15 1-113-688-11 ELECT CHIP 47uF 20% 4V
C17 1-135-210-11 TANTALUM CHIP 4.7uF 20% 10V
C19 1-135-210-11 TANTALUM CHIP 4.7uF 20% 10V
C21 1-164-227-11 CERAMIC CHIP 0.022uF 10% 25V
C23 1-164-245-11 CERAMIC CHIP 0.015uF 10% 25V
C25 1-135-210-11 TANTALUM CHIP 4.7uF 20% 10V
C27 1-165-176-11 CERAMIC CHIP 0.047uF 10% 16V
C35 1-104-913-11 TANTALUM CHIP 10uF 20% 16V
C36 1-113-689-11 ELECT CHIP 100uF 20% 4V
< IC >
IC1 8-759-289-74 IC NJM2076M (TE2)
< SHORT >
JR001 1-216-295-00 SHORT CHIP 0
JR003 1-216-295-00 SHORT CHIP 0
< TRANSISTOR >
Q1 8-729-920-31 TRANSISTOR DTC343TK
Q3 8-729-920-31 TRANSISTOR DTC343TK
Q5 8-729-015-39 TRANSISTOR DTC323TK
Q7 8-729-015-39 TRANSISTOR DTC323TK
Q9 8-729-030-31 TRANSISTOR 2SA1182-0 (TE85R)
Q11 8-729-030-31 TRANSISTOR 2SA1182-0 (TE85R)
Q13 8-729-901-81 TRANSISTOR 2SC2412K-T-146-R
< RESISTOR >
R1 1-216-800-11 METAL CHIP 18 5% 1/10W
R3 1-216-847-11 METAL CHIP 150K 5% 1/10W
R5 1-216-789-11 METAL CHIP 2.2 5% 1/10W
R7 1-216-836-11 METAL CHIP 18K 5% 1/10W
R9 1-216-833-11 METAL CHIP 10K 5% 1/10W
R11 1-218-867-11 METAL CHIP 6.8K 0.5% 1/10W
R13 1-216-789-11 METAL CHIP 2.2 5% 1/10W
R15 1-216-789-11 METAL CHIP 2.2 5% 1/10W
R17 1-216-789-11 METAL CHIP 2.2 5% 1/10W
R19 1-216-789-11 METAL CHIP 2.2 5% 1/10W
R21 1-216-789-11 METAL CHIP 2.2 5% 1/10W
R23 1-216-789-11 METAL CHIP 2.2 5% 1/10W
R25 1-216-823-11 METAL CHIP 1.5K 5% 1/10W
R27 1-216-817-11 METAL CHIP 470 5% 1/10W
R29 1-216-819-11 METAL CHIP 680 5% 1/10W
R31 1-216-809-11 METAL CHIP 100 5% 1/10W
R33 1-216-853-11 METAL CHIP 470K 5% 1/10W
R35 1-216-830-11 METAL CHIP 5.6K 5% 1/10W
R37 1-216-821-11 METAL CHIP 1K 5% 1/10W
R44 1-216-813-11 METAL CHIP 220 5% 1/10W
< VARIABLE RESISTOR >
SFR1 1-238-090-11 RES, ADJ CERMET 10K
************************************************************
A-1066-609-A MAIN (R) BOARD, COMPLETE
************************
< CAPACITOR >
C2 1-104-913-11 TANTALUM CHIP 10uF 20% 16V
C4 1-113-688-11 ELECT CHIP 47uF 20% 4V
C6 1-107-823-11 CERAMIC CHIP 0.47uF 10% 16V
C8 1-107-823-11 CERAMIC CHIP 0.47uF 10% 16V
C10 1-113-689-11 ELECT CHIP 100uF 20% 4V
C12 1-113-689-11 ELECT CHIP 100uF 20% 4V
C14 1-113-688-11 ELECT CHIP 47uF 20% 4V
C16 1-113-688-11 ELECT CHIP 47uF 20% 4V
C18 1-135-210-11 TANTALUM CHIP 4.7uF 20% 10V
C20 1-135-210-11 TANTALUM CHIP 4.7uF 20% 10V
C22 1-164-227-11 CERAMIC CHIP 0.022uF 10% 25V
C24 1-164-245-11 CERAMIC CHIP 0.015uF 10% 25V
C26 1-135-210-11 TANTALUM CHIP 4.7uF 20% 10V
C28 1-165-176-11 CERAMIC CHIP 0.047uF 10% 16V
C29 1-113-689-11 ELECT CHIP 100uF 20% 4V
C30 1-162-967-11 CERAMIC CHIP 0.0033uF 10% 50V
C31 1-162-967-11 CERAMIC CHIP 0.0033uF 10% 50V
C32 1-165-176-11 CERAMIC CHIP 0.047uF 10% 16V
C33 1-164-156-11 CERAMIC CHIP 0.1uF 25V
C34 1-104-913-11 TANTALUM CHIP 10uF 20% 16V
MAIN (R)

Ref. No. Part No. Description Remark Ref. No. Part No. Description Remark
9
MDR-NC6
MAIN (R)
< LED >
D1 8-719-060-79 LED L-1034ID (POWER)
< IC >
IC2 8-759-289-74 IC NJM2076M (TE2)
IC3 6-704-289-01 IC S-817B11AMC-CWAT2G
< SHORT >
JR002 1-216-295-00 SHORT CHIP 0
JR004 1-216-295-00 SHORT CHIP 0
< TRANSISTOR >
Q2 8-729-920-31 TRANSISTOR DTC343TK
Q4 8-729-920-31 TRANSISTOR DTC343TK
Q6 8-729-015-39 TRANSISTOR DTC323TK
Q8 8-729-015-39 TRANSISTOR DTC323TK
Q10 8-729-030-31 TRANSISTOR 2SA1182-0 (TE85R)
Q12 8-729-030-31 TRANSISTOR 2SA1182-0 (TE85R)
Q14 8-729-901-81 TRANSISTOR 2SC2412K-T-146-R
Q15 8-729-903-10 TRANSISTOR FMW1
Q16 8-729-902-90 TRANSISTOR FMA4
< RESISTOR >
R2 1-216-800-11 METAL CHIP 18 5% 1/10W
R4 1-216-847-11 METAL CHIP 150K 5% 1/10W
R6 1-216-789-11 METAL CHIP 2.2 5% 1/10W
R8 1-216-836-11 METAL CHIP 18K 5% 1/10W
R10 1-216-833-11 METAL CHIP 10K 5% 1/10W
R12 1-218-867-11 METAL CHIP 6.8K 0.5% 1/10W
R14 1-216-789-11 METAL CHIP 2.2 5% 1/10W
R16 1-216-789-11 METAL CHIP 2.2 5% 1/10W
R18 1-216-789-11 METAL CHIP 2.2 5% 1/10W
R20 1-216-789-11 METAL CHIP 2.2 5% 1/10W
R22 1-216-789-11 METAL CHIP 2.2 5% 1/10W
R24 1-216-789-11 METAL CHIP 2.2 5% 1/10W
R26 1-216-823-11 METAL CHIP 1.5K 5% 1/10W
R28 1-216-817-11 METAL CHIP 470 5% 1/10W
R30 1-216-819-11 METAL CHIP 680 5% 1/10W
R32 1-216-809-11 METAL CHIP 100 5% 1/10W
R34 1-216-853-11 METAL CHIP 470K 5% 1/10W
R36 1-216-830-11 METAL CHIP 5.6K 5% 1/10W
R38 1-216-821-11 METAL CHIP 1K 5% 1/10W
R39 1-216-816-11 METAL CHIP 390 5% 1/10W
R40 1-216-833-11 METAL CHIP 10K 5% 1/10W
R41 1-216-833-11 METAL CHIP 10K 5% 1/10W
R42 1-216-833-11 METAL CHIP 10K 5% 1/10W
R43 1-216-295-00 SHORT CHIP 0
R45 1-216-813-11 METAL CHIP 220 5% 1/10W
< SWITCH >
S1 (Not supplied) SWITCH, SLIDE (POWER)
< VARIABLE RESISTOR >
SFR2 1-238-090-11 RES, ADJ CERMET 10K
************************************************************
MISCELLANEOUS
**************
3X-2024-979-1 SUB (R) ASSY, DRIVER UNIT
(including SP2 (R-CH))
11 X-2024-980-1 SUB (L) ASSY, DRIVER UNIT
(including SP1 (L-CH))
MIC1 1-542-260-61 MICROPHONE, ELECTRET, CONDENSER (L-CH)
MIC2 1-542-260-61 MICROPHONE, ELECTRET, CONDENSER (R-CH)
P1 1-829-963-11 CORD (WITH PLUG)
************************************************************
ACCESSORIES
************
1-473-686-11 ADAPTOR, PLUG (DUAL) (for in flight use)
2-108-830-01 POUCH, CARRYING
2-149-995-01 MANUAL, INSTRUCTION (JAPANESE)
2-149-995-11 MANUAL, INSTRUCTION
(ENGLISH, FRENCH, SPANISH)

2
MDR-NC6
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 2004.10 New

SERVICE MANUAL
Ver. 1.1 2005.02
STEREO HEADPHONES
US Model
Canadian Model
AEP Model
•The following parts are available for service parts of this model.
MDR-NC6
1-473-686-11 ADAPTOR, PLUG (DUAL)
2-108-830-01 POUCH, CARRYING (US)
2-148-074-01 PAD, EAR
2-149-995-11 MANUAL, INSTRUCTION (ENGLISH, FRENCH, SPANISH)
(US)
2-589-850-01 MANUAL, INSTRUCTION (ENGLISH, FRENCH, SPANISH,
GERMAN, ITALIAN, PORTUGUESE, HUNGARIAN, POLISH,
CZECH, RUSSIAN, SLOVAKIAN) (Canadian, AEP)
PARTS LIST
Part No. Description Remark
9-879-145-02
2005B05-1
© 2005.02
Sony Corporation
Personal Audio Company
Published by Sony Engineering Corporation

2
MDR-NC6
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 2004.08 New
1.1 2005.02 Addition of Canadian and AEP models