Sony MDR MDR NC22 User manual

SERVICE MANUAL
NOISE CANCELING HEADPHONES
US Model
Canadian Model
AEP Model
E Model
Tourist Model
SPECIFICATIONS
MDR-NC22
Ver. 1.2 2007.02
9-887-426-03
2007B05-1
© 2007.02
Sony Corporation
Personal Audio Division
Published by SonyTechno Create 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 dynamic, closed
Driver units 13.5 mm, dome type (CCAW adopted)
Power handling capacity
50 mW
Impedance 20 Ωat 1 kHz
(when the power is on)
8.5 Ωat 1 kHz
(when the power is off)
Sensitivity 102 dB/mW (when the power is on)
100 dB/mW (when the power is off)
Frequency response
8 – 22,000 Hz
Frequency range of active noise attenuation
50 – 1,500 Hz more than 12 dB at
200 Hz
Cord 1.5 m (59 1/8in) OFC litz cord,
neck-chain (including battery box)
Plug Gold-plated L type stereo mini plug
Power source DC 1.5 V, 1 ×R03 (size AAA) battery
Mass Approx. 39 g (1.4 oz) including battery
box, cord, and battery
Supplied accessories
Sony R03 (size AAA) battery (1) (US, Tourist models)
Earbuds (S ×2, M ×2, L ×2)
Carrying pouch (1)
Plug adaptor for in-flight use* (single/dual) (1)
Operating Instructions (1)
*May not be compatible with some in-flight music services.
Design and specifications are subject to change without
notice.
UNLEADED SOLDER
Boards requiring use of unleaded solder are printed with the lead-
free mark (LF) indicating the solder contains no lead.
(Caution: Some printed circuit boards may not come printed with
the lead free mark due to their particular size)
: LEAD FREE MARK
Unleaded solder has the following characteristics.
•Unleaded solder melts at a temperature about 40 °C higher
than ordinary solder.
Ordinary soldering irons can be used but the iron tip has to be
applied to the solder joint for a slightly longer time.
Soldering irons using a temperature regulator should be set to
about 350 °C.
Caution: The printed pattern (copper foil) may peel away if
the heated tip is applied for too long, so be careful!
•Strong viscosity
Unleaded solder is more viscou-s (sticky, less prone to flow)
than ordinary solder so use caution not to let solder bridges
occur such as on IC pins, etc.
•Usable with ordinary solder
It is best to use only unleaded solder but unleaded solder may
also be added to ordinary solder.
NOTES ON REPLACEMENT OF CSP (CHIP SIZE
PACKAGE) IC
Replacement of IC2 used in this set requires a special tool.

2
MDR-NC22
2 Wear the headphones marked Rin your right
ear and the one marked Lin your left ear. Push
the earbud into your ear carefully so that the
earbud fits the hole of your ear snugly.
Note
Unless the earbuds correctly fit your ears, noise canceling
will not function.
Adjust the earbuds position to sit on your ear comfortably,
and push them into the inside of your ears so that they fit
your ears snugly.
3 Turn on the power of the headphones.
The power indicator lights in red. The power
switch is located on the battery box. When
power is turned on, ambient noise is reduced,
and you can listen to music more clearly at a
lower volume.
4 Turn on the power of the AV equipment.
* “WALKMAN” and “WALKMAN” logo are registered
trademarks of Sony Corporation.
To hear ambient sound for safety
When the power switch is set to on, noise canceling can be
deactivated while the MONITOR button is pressed so that
you can hear ambient sound.
Notes on using on the airplane
• The supplied plug adaptor can be connected to the dual or
stereo mini jacks of in-flight music services.
• 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.
• The noise canceling function may not work properly unless
the headphones are put on firmly.
•You can use the headphones even without turning on the
power. In this case, the noise canceling function is not active,
and the headphones operate as passive headphones.
•After you turn on the power of the headphones, you may hear
a slight hiss. This is the operating sound of the noise canceling
function, not a malfunction.
• In a quiet place, or depending on certain noises, you may feel
that the noise canceling function is not effective, or that noise
is accentuated. In this case, turn off the power of the
headphones.
• Interference noise can occur from nearby cellular phones.
Should this occur, locate the headphones further away from
the cellular phone(s).
Removing the battery
1 Open the lid.
2 Pull the lid lightly in the direction of the arrow.
Note
The battery may jump out when the lid is pulled. Pull the
lid while placing a finger on the battery.
3 Close the lid.
Note
Store the ribbon in the battery compartment to prevent it
being pinched by the lid.
c
Battery life
*
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.
Selecting the
earbuds
The M size earbuds are attached to the headphones before
shipment. If you feel the M size earbuds do not suit your
ears, replace them with the supplied S or L size earbuds.
Listening to music
1
Connect the headphones to the AV equipment.
Features
• Noise canceling headphones reduce ambient noise, and
provide a quieter environment to enhance audio
entertainment. Ambient sound is reduced by synthesizing
with a sound in opposite phase produced by the noise
canceling circuit.
• Ultra compact headphones fits comfortably in the ears and
closed type headphone structure delivers deep bass sound.
•3sizes soft silicon rubber earbuds are used for stable and
comfortable fit in the ears.
• Operates as passive headphones when noise canceling
circuit is not activated.
• Built-in monitor function to hear surrounding sound
without taking off the headphones.
• Plug adaptor is supplied to connect directly to stereo or
dual jack of in-flight music services.
Installing a battery
1
Open the lid on the rear of the battery box.
2 Insert one R03 (size AAA) battery, matching
the + and – on the battery to the + and – in the
battery compartment.
3 Close the lid.
Plug adaptor (supplied)
When connecting to dual or
stereo mini jacks of in-flight
music services.
To headphone jacks
on airplane seats
When directly connecting to
the headphone jack (stereo
mini jack) of a WALKMAN
* ,
etc.
Insert the #end
first.
Microphone
When connecting to a remote
commander with a stereo
mini jack of a WALKMAN
* ,
etc.
Battery
Sony alkaline battery LR03/AM-
4 (N)
Sony battery R03/UM-4 (NU)
Approx. hours*
1
50 hours*
2
22 hours*
2
dual jacks stereo mini jacks
MONITOR button
Remote commander
Note
Because the supplied battery was included in the package from
the time of manufacture (as a convenience to the user), it is
possible that the battery life may be somewhat depleted by the
time of purchase. The actual life of the supplied battery may be
shorter than the standard time described in this manual when
using a fresh battery.
(US, Tourist models)
SECTION 1
GENERAL This section is extracted from
instruction manual.
Ver. 1.1

3
MDR-NC22
SECTION 2
DISASSEMBLY
•This set can be disassembled in the order shown below.
2-1. DISASSEMBLY FLOW
Note: Follow the disassembly procedure in the numerical order given.
2-2. CABINET FRONT ASSY
4 cabinet front assy
power knob
power knob
switch (S101)
switch (S101)
2 Open the battery case lid.
3 screw (1.7)
1 two screws
(1.7)
Note: On installation of cabinet front assy,
adjust the position of switch (S101)
and power knob.
2-2. CABINET FRONT ASSY
(Page 3)
2-3. LIGHT GUIDE PLATE
(Page 4)
2-5. MAIN BOARD
(Page 5)
2-4. HEADPHONE ASSY,
CORD (WITH PLUG) (LINE INPUT) (P1)
(Page 4)
SET

4
MDR-NC22
2-3. LIGHT GUIDE PLATE
2-4. HEADPHONE ASSY, CORD (WITH PLUG) (LINE INPUT) (P1)
1 Remove the headphone assy,
MAIN board and cord (with plug)
(line input) (P1) in the direction
of the arrow.
2 light guide plate
headphone assy
MAIN board
cord (with plug) (line input) (P1
)
brown
red
green
cord (with plug) (line input) (P1)
MAIN board
(side B)
CORD (WITH PLUG) (LINE INPUT) (P1)
WIRING DIAGRAM
4 cord (with plug) (line input)
(P1)
3 Remove three
solders of cord
(with plug)
(line input) (P1).
MAIN board (side A)
black
brown
red
white
green
HEADPHONE ASSY
WIRING DIAGRAM
1 Remove five solders
of headphone assy.
2 headphone assy
headphone assy

5
MDR-NC22
2-5. MAIN BOARD
4 terminal battery (+)
3 Remove solder of
terminal battery (+).
2 terminal battery (–)
1 Remove two solders
of terminal battery (–).
5 MAIN board

6
MDR-NC22 SECTION 3
ELECTRICAL ADJUSTMENT
NOISE CANCEL VOLUME ADJUSTMENT
Connection:
Procedure:
1. Generate a sine wave of specific frequency (200 Hz) from a
AFoscillator,andoutputit froma speakerplacedat theforward
position.
2. Wear this headphones on the ear, and turn on the [POWER]
switch.
3. With this headphones worn, adjust the RV1 (L-ch) and RV51
(R-ch) so that the volume from the speaker becomes lowest
aurally.
Note:
When the headphones are not covered with the ear pieces completely, the
adjustment may not be performed correctly.
Make sure that the ear pieces cover the headphone completely.
Adjustment Location:
+
–amplifier
speaker
AF oscillator
RV1 (L-ch) S101 RV51 (R-ch)
– MAIN BOARD (Side A) –
Noise Cancel
Volume Adjustment
POWER
OFF ON

7
MDR-NC22
SECTION 4
DIAGRAMS
•Note for PrintedWiring Board and Schematic Diagram
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.
•Powervoltageis dc 1.5Vand fedwith regulateddc power
supply from battery terminal.
•Voltages and waveforms are dc with respect to ground
under no-signal conditions.
no mark : POWER ON
•Voltages aretaken withaVOM(Inputimpedance 10 MΩ).
Voltage variations may be noted due to normal produc-
tion tolerances.
•Waveforms are taken with a oscilloscope.
Voltage variations may be noted due to normal produc-
tion tolerances.
•Circled numbers refer to waveforms.
•Signal path.
F: LINE INPUT (POWER ON)
J: LINE INPUT (POWER OFF)
Note on Printed Wiring Board:
•X: parts extracted from the component side.
•Y: parts extracted from the conductor side.
•: Pattern from the side which enables seeing.
(The other layers' patterns are not indicated.)
Caution:
Pattern face side: Partsonthe patternfacesideseen from
(Side B) the pattern face are indicated.
Parts face side: Parts on the parts face side seen from
(Side A) the parts face are indicated.
•Lead Layouts
Lead layout of conventional IC CSP (chip size package)
surfac
e
•The voltage and waveform of CSP (chip size package)
cannot be measured, because its lead layout is different
form that of conventional IC.
*Replacement of IC201 used in this set requires a spe-
cial tool.

8
MDR-NC22
•Waveforms
1Q201 (Base-1)
500 mV/DIV, 20 µ s/DIV
37.5 µ s
860 mVp-p
2Q201 (Collector-1)
500 mV/DIV, 20 µ s/DIV
37.5 µ s1.4 Vp-p
3Q201 (Collector-2)
500 mV/DIV, 20 µ s/DIV
37.5 µ s1.4 Vp-p
4IC101 5(EXT)
1 V/DIV, 5 µ s/DIV
10 µ s2.6 Vp-p
CLICK-POP &
MODE CONTROL
LOGIC
BIAS
GENERATOR
–
+
OUT B
7
GND
6
VDD
10
SE/BTL
8
OUT A
9
IN A 1
–
+
IN B 5
SD 2
MUTE 3
BYPASS 4
EXT
5
GND
4
FB 1
VDD 2
CE 3
CURRENT
RIPPLE DETECT
& FB
+
–
ERROR AMP
+
–
PWM COMPARATOR
VREF WITH
SOFT START
& CE
RAMP WAVE
GENERATOR,
OSC
PWM/PFM
CONTROLLER
PHASE
COMPENSATION
BUFFER,
DRIVER
VCC
IC2 LM4916LDX/NOPB
•IC Block Diagrams
IC101 XC9105D091MR

MDR-NC22
99
MDR-NC22
4-1. PRINTED WIRING BOARD
•Semiconductor
Location
Ref. No. Location
D1 C-3
D2 C-3
D51 C-3
D52 C-3
D101 A-3
D201 C-6
IC1 C-4
IC2 C-5
IC101 B-3
IC102 C-2
Q101 C-3
Q102 B-3
Q103 C-2
Q104 C-2
Q105 C-4
Q201 C-6
Q202 C-6
C102
R4
C57
IC101
C105
C5
D101
C107
C104
R106
R105
C106
Q102
R104
C103
R54
L101
R20
C55
C15
C14
C64
RV1
C65
S301
R57
R58
R59 R60
C56 S101
RV51
R108
R52
R2
R56
C54
C4
C108 C2
C3
C52
R21
R70
R71
R3
C116
R116
Q103
R107
R103
IC102
R7
C6
R9
R8
R115
R6 C7
C109
Q104
R101
Q101 R102
C60
C10
R10
R16
C12
C62
R66 D52 D51
D2
D1 R14
R5
R64
IC1
R55
C53
C113
R67
R17
R111
C112
R112
R53 R62
C59
C110
C9
R110
Q105
R1
R113
C115
R63
R19
R18
R13
D201
R206
C202
C203
Q201
C1
R203
R202
R204
C201
C204
Q202
R51
C111 R201
R205
C51
C63
R68
C117
R69
IC2
R12
C13
1-871-422-
12
(12)
MAIN BOARD (SIDE A)
1-871-422-
12
(12)
MAIN BOARD (SIDE B)
MONITOR
POWER
OFF tON
SP1
(L-CH)
SP51
(R-CH)
MIC51
(R-CH)
MIC1
(L-CH)
GRN
WHT
RED
BRN
BLK
POWER
2B1B
2C1C
E
2B
1B
2C
1C
E
BRN
GRN
RED
P1
(LINE INPUT)
DRY BATTERY
SAZE "AAA"
(IEC DESIGNATION R03)
1PC. 1.5V
A
B
C
1 2 3 4 5 6 7

MDR-NC22
1010
MDR-NC22
4-2. SCHEMATIC DIAGRAM BOARD •See page 6 forWaveforms. •See page 6 for IC Block Diagrams.
R101
R110
R201
R51
R21
R71R70
R20
C117
R69
C115
R113
R115
R13
R68C63
R67
R17
R19
R63
R18C13
R111
R112
C113
R64
C12
R16
R14
D2
D1R5
RV1
R55R54
R53
C53
R66
R52 C52
R4
R3
C3
R2
C54
C4 C2R1
C1
C111
C51
C116
R116
S301
C109
R102
C104
Q102
R104
C105
R108R106
Q104
C106
C108
R105
Q202
C201
C204
R206
R205
C203
R203R202 R204
Q201
Q103
C202
C59R62C60R60C56
C9
R12C10
R10
R9
R59R57
R58
C57
R56
C7
R8
R7 C6
R6
S101
R103
D101 L101
47µH
R107
Q101
IC102
TP1
TP2
TP31
TP32
TP6
TP11
TP12
C102
C103
IC101
C107
D201
C55
C5
P101
V110
SP1
C15
C65
C14
C64
C112
IC1
D51
D52
RV51 C62
MIC51
MIC1
IC2
Q105
SP51
750
68k
27
2.7k
8.2
8.22.7
2.7
1
68k
1
47k
10k
10k
68k0.47
10k
10k
68k
10k
68k0.47
47k
47k
0.47
150k
470p
47k
150k
1SS400TE
1SS400TE10k
100k
10k2k
2.7k
0.47
47k
2.7k 0.047
2k
2.7k
0.47
2.7k
1
10.0472.7k
0.1
0.1
0.1
0.1
470
0.1
47k
0.1
2SD2652
470
2200p
150k150k
2SC4617
100p
0.1
150k
UMW1N-TR
2200p
2200p
2.7k
750
0.1
10k10k 10k
UMA4N-TR
DTA123JE
1
3300p10k0.147k0.01
3300p
10k0.1
47k
1.5k
1.5k2.7k
2k
1
18
1
2k
2.7k 0.01
18
47k
RB161M-20TR
47k
2SB1689
XC61CN1002NR
22
6.3V
22
6.3V
XC9105D091MR
22
6.3V
LSY876
100
4V
100
4V
22
6.3V
220
4V
220
4V
10
6.3V
10
6.3V
0.1
NJM2732RB1
1SS400TE
1SS400TE
100k 470p
LM4916
2SD2654
IN-A
IN-B
MUTE
SD
GND
VDD
EXT
V-OUT
VDD
CE
GND VINCONT
NCGND
BYPASS
OUT A
SE/BTL
OUT B
VOLTAGE DETECT
POWER ON DETECT
DRY BATTERY
1PC. 1.5V
SIZE"AAA"
(IEC DESIGNATION R03)
Q101,104
B+ SWITCH
SWITCHING
Q201,202
LED DRIVE
-2-1
-1-2
POWER
POWER
OFF
ON
(LINE INPUT)
POWER ON
MUTING
(L-CH)
(R-CH)
HEADPHONE AMP
CSP(Chip Size Package)
∗
MONITOR
MIC AMP
VCC
GND
(L-CH)
(R-CH)
DC/DC CONVERTER

11
MDR-NC22
SECTION 5
EXPLODED VIEWS
Ref. No. Part No. Description Remark Ref. No. Part No. Description Remark
12-695-980-01 LID, BATTERY CASE (BLACK)
12-695-980-11 LID, BATTERY CASE (WHITE)
12-695-980-21 LID, BATTERY CASE (PINK)
23-254-139-01 SCREW (1.7)
33-252-825-11 SCREW (1.7)
4X-2176-230-1 CABINET FRONT ASSY (for BLACK)
4X-2176-231-1 CABINET FRONT ASSY (for WHITE)
4X-2176-232-1 CABINET FRONT ASSY (for PINK)
•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
numberintheexplodedviewsare not 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
5-1. CABINET FRONT SECTION
cabinet center section
1
2
2
3
4

12
MDR-NC22
5-2. CABINET CENTER SECTION
51
P1
52
53 54
55
56
57
58
58
59
Ref. No. Part No. Description Remark Ref. No. Part No. Description Remark
51 2-695-979-02 CABINET, BATTERY (BLACK)
51 2-695-979-12 CABINET, BATTERY (WHITE)
51 2-695-979-22 CABINET, BATTERY (PINK)
52 2-695-983-01 PLATE, LIGHT GUIDE
53 2-896-229-01 SHEET, BATTERY (for BLACK)
53 2-896-229-11 SHEET, BATTERY (for PINK, WHITE)
54 X-2149-617-1 CABINET CENTER SUB ASSY (for BLACK)
54 X-2149-796-1 CABINET CENTER SUB ASSY (for WHITE)
54 X-2149-798-1 CABINET CENTER SUB ASSY (for PINK)
55 2-695-986-01 TERMINAL BATTERY (–)
56 2-695-985-01 TERMINAL BATTERY (+)
57 A-1215-440-A MAIN BOARD, COMPLETE
58 4-220-438-21 PIECE (M), EAR (M size) (for BLACK)
58 4-220-438-31 PIECE (M), EAR (M size) (for PINK, WHITE)
59 X-2176-211-1 HEADPHONE ASSY (for BLACK)
59 X-2176-212-1 HEADPHONE ASSY (for WHITE)
59 X-2176-213-1 HEADPHONE ASSY (for PINK)
P1 1-833-189-13 CORD (WITH PLUG) (LINE INPUT) (BLACK)
P1 1-833-189-23 CORD (WITH PLUG) (LINE INPUT) (WHITE)
P1 1-833-189-33 CORD (WITH PLUG) (LINE INPUT) (PINK)

13
MDR-NC22
SECTION 6
ELECTRICAL PARTS LIST
Ref. No. Part No. Description Remark Ref. No. Part No. Description Remark
A-1215-440-A MAIN BOARD, COMPLETE
*********************
< CAPACITOR >
C1 1-125-777-11 CERAMIC CHIP 0.1uF 10% 10V
C2 1-119-923-11 CERAMIC CHIP 0.047uF 10% 10V
C3 1-112-324-91 CERAMIC CHIP 0.47uF 20% 10V
C4 1-100-352-11 CERAMIC CHIP 1uF 20% 16V
C5 1-100-661-11 TANTALUM CHIP 100uF 20% 4V
C6 1-128-632-11 CERAMIC CHIP 0.01uF 10% 6.3V
C7 1-100-352-11 CERAMIC CHIP 1uF 20% 16V
C9 1-128-629-91 CERAMIC CHIP 0.0033uF 10% 6.3V
C10 1-107-826-11 CERAMIC CHIP 0.1uF 10% 16V
C12 1-128-625-11 CERAMIC CHIP 470PF 10% 16V
C13 1-125-891-11 CERAMIC CHIP 0.47uF 10% 10V
C14 1-117-919-11 TANTALUM CHIP 10uF 20% 6.3V
C15 1-114-169-21 TANTALUM CHIP 220uF 20% 4V
C51 1-125-777-11 CERAMIC CHIP 0.1uF 10% 10V
C52 1-119-923-11 CERAMIC CHIP 0.047uF 10% 10V
C53 1-112-324-91 CERAMIC CHIP 0.47uF 20% 10V
C54 1-100-352-11 CERAMIC CHIP 1uF 20% 16V
C55 1-100-661-11 TANTALUM CHIP 100uF 20% 4V
C56 1-128-632-11 CERAMIC CHIP 0.01uF 10% 6.3V
C57 1-100-352-11 CERAMIC CHIP 1uF 20% 16V
C59 1-128-629-91 CERAMIC CHIP 0.0033uF 10% 6.3V
C60 1-107-826-11 CERAMIC CHIP 0.1uF 10% 16V
C62 1-128-625-11 CERAMIC CHIP 470PF 10% 16V
C63 1-125-891-11 CERAMIC CHIP 0.47uF 10% 10V
C64 1-117-919-11 TANTALUM CHIP 10uF 20% 6.3V
C65 1-114-169-21 TANTALUM CHIP 220uF 20% 4V
C102 1-100-786-91 TANTALUM CHIP 22uF 20% 6.3V
C103 1-100-786-91 TANTALUM CHIP 22uF 20% 6.3V
C104 1-125-777-11 CERAMIC CHIP 0.1uF 10% 10V
C105 1-128-628-11 CERAMIC CHIP 0.0022uF 10% 6.3V
C106 1-128-617-11 CERAMIC CHIP 100PF 5% 25V
C107 1-100-786-91 TANTALUM CHIP 22uF 20% 6.3V
C108 1-125-777-11 CERAMIC CHIP 0.1uF 10% 10V
C109 1-125-777-11 CERAMIC CHIP 0.1uF 10% 10V
C110 1-100-786-91 TANTALUM CHIP 22uF 20% 6.3V
C111 1-125-777-11 CERAMIC CHIP 0.1uF 10% 10V
C112 1-125-777-11 CERAMIC CHIP 0.1uF 10% 10V
C113 1-125-891-11 CERAMIC CHIP 0.47uF 10% 10V
C115 1-100-352-11 CERAMIC CHIP 1uF 20% 16V
C116 1-125-777-11 CERAMIC CHIP 0.1uF 10% 10V
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
When indicating parts by reference
number, please include the board.
C117 1-100-352-11 CERAMIC CHIP 1uF 20% 16V
C201 1-128-628-11 CERAMIC CHIP 0.0022uF 10% 6.3V
C202 1-100-352-11 CERAMIC CHIP 1uF 20% 16V
C203 1-125-777-11 CERAMIC CHIP 0.1uF 10% 10V
C204 1-128-628-11 CERAMIC CHIP 0.0022uF 10% 6.3V
< DIODE >
D1 8-719-069-28 DIODE 1SS400TE-61
D2 8-719-069-28 DIODE 1SS400TE-61
D51 8-719-069-28 DIODE 1SS400TE-61
D52 8-719-069-28 DIODE 1SS400TE-61
D101 6-500-220-01 DIODE RB161M-20TR
D201 6-501-636-01 LED LSY876-Q2S1-1 (POWER)
< IC >
IC1 6-706-906-01 IC NJM2732RB1 (TE2)
@IC2 6-707-110-01 IC LM4916LDX/NOPB
IC101 6-701-734-01 IC XC9105D091MR
IC102 8-759-690-96 IC XC61CN1002NR
< COIL >
L101 1-400-787-21 INDUCTOR 47uH
< TRANSISTOR >
Q101 6-550-044-01 TRANSISTOR 2SB1689-T106
Q102 6-550-364-01 TRANSISTOR 2SD2652T106
Q103 8-729-928-54 TRANSISTOR DTA123JE
Q104 8-729-928-00 TRANSISTOR 2SC4617TL-R
Q105 6-551-411-01 TRANSISTOR 2SD2654TLV
Q201 8-729-055-39 TRANSISTOR UMA4N-TR
Q202 8-729-050-11 TRANSISTOR UMW1NTR
< RESISTOR >
R1 1-240-700-91 METAL CHIP 2.7K 5% 1/20W
R2 1-240-700-91 METAL CHIP 2.7K 5% 1/20W
R3 1-218-958-11 RES-CHIP 2.7K 5% 1/16W
R4 1-240-791-91 METAL CHIP 2K 0.5% 1/20W
R5 1-240-707-91 METAL CHIP 10K 5% 1/20W
R6 1-216-800-11 METAL CHIP 18 5% 1/10W
R7 1-240-700-91 METAL CHIP 2.7K 5% 1/20W
R8 1-240-791-91 METAL CHIP 2K 0.5% 1/20W
R9 1-240-697-91 METAL CHIP 1.5K 5% 1/20W
@Replacement of IC2 used in this set requires a special
tool.

Ref. No. Part No. Description Remark Ref. No. Part No. Description Remark
14
MDR-NC22
MAIN
R10 1-240-714-91 METAL CHIP 47K 5% 1/20W
R12 1-240-707-91 METAL CHIP 10K 5% 1/20W
R13 1-240-707-91 METAL CHIP 10K 5% 1/20W
R14 1-240-720-91 METAL CHIP 150K 5% 1/20W
R16 1-240-714-91 METAL CHIP 47K 5% 1/20W
R17 1-240-707-91 METAL CHIP 10K 5% 1/20W
R18 1-240-716-91 METAL CHIP 68K 5% 1/20W
R19 1-240-716-91 METAL CHIP 68K 5% 1/20W
R20 1-242-946-81 RES-CHIP 2.7 5% 1/16W
R21 1-245-265-11 METAL CHIP 8.2 5% 1/16W
R51 1-240-700-91 METAL CHIP 2.7K 5% 1/20W
R52 1-240-700-91 METAL CHIP 2.7K 5% 1/20W
R53 1-218-958-11 RES-CHIP 2.7K 5% 1/16W
R54 1-240-791-91 METAL CHIP 2K 0.5% 1/20W
R55 1-240-707-91 METAL CHIP 10K 5% 1/20W
R56 1-216-800-11 METAL CHIP 18 5% 1/10W
R57 1-240-700-91 METAL CHIP 2.7K 5% 1/20W
R58 1-240-791-91 METAL CHIP 2K 0.5% 1/20W
R59 1-240-697-91 METAL CHIP 1.5K 5% 1/20W
R60 1-240-714-91 METAL CHIP 47K 5% 1/20W
R62 1-240-707-91 METAL CHIP 10K 5% 1/20W
R63 1-240-707-91 METAL CHIP 10K 5% 1/20W
R64 1-240-720-91 METAL CHIP 150K 5% 1/20W
R66 1-240-714-91 METAL CHIP 47K 5% 1/20W
R67 1-240-707-91 METAL CHIP 10K 5% 1/20W
R68 1-240-716-91 METAL CHIP 68K 5% 1/20W
R69 1-240-716-91 METAL CHIP 68K 5% 1/20W
R70 1-242-946-81 RES-CHIP 2.7 5% 1/16W
R71 1-245-265-11 METAL CHIP 8.2 5% 1/16W
R101 1-240-781-91 METAL CHIP 750 0.5% 1/20W
R102 1-240-714-91 METAL CHIP 47K 5% 1/20W
R103 1-240-714-91 METAL CHIP 47K 5% 1/20W
R104 1-240-691-91 METAL CHIP 470 5% 1/20W
R105 1-240-720-91 METAL CHIP 150K 5% 1/20W
R106 1-240-720-91 METAL CHIP 150K 5% 1/20W
R107 1-240-714-91 METAL CHIP 47K 5% 1/20W
R108 1-240-720-91 METAL CHIP 150K 5% 1/20W
R110 1-240-716-91 METAL CHIP 68K 5% 1/20W
R111 1-240-714-91 METAL CHIP 47K 5% 1/20W
R112 1-240-714-91 METAL CHIP 47K 5% 1/20W
R113 1-240-714-91 METAL CHIP 47K 5% 1/20W
R115 1-240-707-91 METAL CHIP 10K 5% 1/20W
R116 1-240-691-91 METAL CHIP 470 5% 1/20W
R201 1-218-934-11 RES-CHIP 27 5% 1/16W
R202 1-240-707-91 METAL CHIP 10K 5% 1/20W
R203 1-240-707-91 METAL CHIP 10K 5% 1/20W
R204 1-240-707-91 METAL CHIP 10K 5% 1/20W
R205 1-240-781-91 METAL CHIP 750 0.5% 1/20W
R206 1-240-700-91 METAL CHIP 2.7K 5% 1/20W
< VARIABLE RESISTOR >
RV1 1-227-413-21 RES, ADJ, CERMET 100K
RV51 1-227-413-21 RES, ADJ, CERMET 100K
< SWITCH >
S101 1-771-337-21 SWITCH, SLIDE (POWER)
S301 1-786-700-11 SWITCH, TACTILE (MONITOR)
************************************************************
MISCELLANEOUS
**************
59 X-2176-211-1 HEADPHONE ASSY (for BLACK)
59 X-2176-212-1 HEADPHONE ASSY (for WHITE)
59 X-2176-213-1 HEADPHONE ASSY (for PINK)
P1 1-833-189-13 CORD (WITH PLUG) (LINE INPUT) (BLACK)
P1 1-833-189-23 CORD (WITH PLUG) (LINE INPUT) (WHITE)
P1 1-833-189-33 CORD (WITH PLUG) (LINE INPUT) (PINK)
************************************************************
ACCESSORIES
************
1-477-125-21 ADAPTOR, PLUG (DUAL)
(for in-flight use (single/dual))
2-888-749-13 MANUAL, INSTRUCTION
(JAPANESE, ENGLISH) (Tourist)
2-888-749-21 MANUAL, INSTRUCTION (ENGLISH, FRENCH,
SPANISH) (Canadian, AEP, E)
2-888-749-31 MANUAL, INSTRUCTION
(TRADITIONAL CHINESE, SIMPLIFIED CHINESE,
KOREAN) (E)
2-888-749-42 MANUAL, INSTRUCTION (GERMAN, ITALIAN,
PORTUGUESE, RUSSIAN) (AEP)
2-888-749-51 MANUAL, INSTRUCTION (POLISH, CZECH,
HUNGARIAN, SLOVAKIAN) (AEP)
2-888-749-62 MANUAL, INSTRUCTION (ENGLISH, SPANISH)
(US)
2-890-205-01 POUCH, CARRYING
3-046-415-21 PIECE (L), EAR (L size) (for BLACK)
3-046-415-31 PIECE (L), EAR (L size) (for PINK, WHITE)
4-220-438-21 PIECE (M), EAR (M size) (for BLACK)
4-220-438-31 PIECE (M), EAR (M size) (for PINK, WHITE)
4-220-439-21 PIECE (S), EAR (S size) (for BLACK)
4-220-439-31 PIECE (S), EAR (S size) (for PINK, WHITE)
Ver. 1.2

15
MDR-NC22
MEMO

2
MDR-NC22
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 2006.10 New
1.1 2006.12 Addition of US and AEP models
1.2 2007.02 Addition of Canadian model