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SERVICE MANUAL
Ver. 1.0 2007.03
General
Type
Driver units
Power handling capacity
Impedance
Sensitivity
Frequency response
Frequency range of active noise attenuation
Power source
Mass
Supplied accessories
Connecting cord (0.5 m, gold plated stereo mini
plug)(1) (Tourist)
Connecting cord (1.5 m, gold plated L type stereo
mini plug)(1)
Sony R03 (size AAA) battery (1) (US, Tourist)
Carrying case (1)
Plug adapter for in-flight use* (single/dual)(1)
Gold-plated unimatch plug adapter (stereo phone
plug y stereo mini jack)(1)
Operating Instructions (1)
Card warranty (1) (Except E)
* May not be compatible with some in-flight
music services.
Sony Corporation
9-887-554-01
Personal Audio Division
2007C05-1
Published by Sony Techno Create Corporation
© 2007.03
SPECIFICATIONS
Dynamic, closed
40 mm, dome type (CCAW adopted)
100 mW
40 Ω at 1 kHz
(when the power is on)
100 Ω at 1 kHz
(when the power is off)
102 dB/mW
(when the power is on)
100 dB/mW
(when the power is off)
14 – 24,000 Hz
40 – 1,500 Hz, more than 16.5 dB at
200 Hz
DC 1.5 V, 1 × R03 (size AAA) battery
Approx. 230 g (8 oz) including battery
MDR-NC60
Battery life
Battery
Sony alkaline LR03/AM-4
(N) (size AAA) battery
Sony manganese R03/ UM-4
(NU) (size AAA) battery
*
1
1 kHz, 0.1 mW + 0.1 mW output
2
*
Time stated above may vary, depending on the
temperature or conditions of use.
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.
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.
Design and specifications are subject to change
without notice.
US Model
Canadian Model
AEP Model
E Model
Tourist Model
Approx. hours*
1
30 hours*
2
15 hours*
2
NOISE CANCELING
HEADPHONES

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   Summary of Contents for Sony MDR-NC60

  • Page 1

    Connecting cord (1.5 m, gold plated L type stereo may not work correctly if battery power is low. mini plug)(1) Sony R03 (size AAA) battery (1) (US, Tourist) Design and specifications are subject to change Carrying case (1) without notice.

  • Page 2: Table Of Contents

    MDR-NC60 UNLEADED SOLDER TABLE OF CONTENTS Boards requiring use of unleaded solder are printed with the lead- free mark (LF) indicating the solder contains no lead. GENERAL ..............3 (Caution: Some printed circuit boards may not come printed with the lead free mark due to their particular size) DISASSEMBLY 2-1.

  • Page 3: General

    Match the e on the disappears. please consult the nearest Sony dealer. battery to the e in the battery case. After listening to music Turn off the power of the headphones.

  • Page 4: Disassembly

    MDR-NC60 SECTION 2 DISASSEMBLY • This set can be disassembled in the order shown below. 2-1. DISASSEMBLY FLOW 2-2. ML BOARD 2-3. MR BOARD 2-7. POSITION OF LEAD WIRES (Page 4) (Page 5) (Page 7) 2-4. HEAD BAND ASSY (Page 5) 2-5.

  • Page 5: Mr Board

    MDR-NC60 2-3. MR BOARD 3 claw 6 PC board cover (R) 4 battery lid assy 9 MR board 5 two screws 7 saranet cushion 8 Remove twelve solders. 1 Press the open button to open the battery lid assy. MR board 2-4.

  • Page 6: Hanger (l/r)

    MDR-NC60 2-5. HANGER (L/R) Note: Use the same method as that on the L side when removing the hanger (R). 2 two screws head band section 6 hanger stopper (L) 3 swivel spring POINT TO NOTES 4 swivel plate 5 Rotate this part of hanger...

  • Page 7: Position Of Lead Wires

    MDR-NC60 2-7. POSITION OF LEAD WIRES – ML board – – MR board – MIC NC wire saranet cushion (MIC2) driver wire (SP101) MIC monitor wire (MIC1) driver wire (SP1) NATURAL MIC NC wire NATURAL (MIC102) NATURAL NATURAL GREEN NATURAL...

  • Page 8: Electrical Adjustment

    MDR-NC60 SECTION 3 ELECTRICAL ADJUSTMENT NOISE CANCELING VOLUME ADJUSTMENT 1 AMP Gain Adjustment Preparation: – L-CH – 1. Remove wires of the TP903, TP904, TP905. (for HP board (audio in jack)) 2. Remove wires of the TP915, TP916. (for SP1) 3.

  • Page 9

    MDR-NC60 – ML BOARD (SIDE A) – adjustment part mechanical center TP915 39 Ω TP916 600 Ω TP913 level audio analyzer 330 Ω 270 Ω 22 Ω 330 Ω 270 Ω (GND) TP903 TP904 impedance: 600 Ω TP905 22 Ω...

  • Page 10

    MDR-NC60 2 Canceling Gain Adjustment Preparation and setting: – L-CH – 1. Remove the resistors from TP903, TP904, TP905. 2. Connect the wires of HP board (audio in jack)) to the TP903 (green), TP904 (red), TP905 (natural). 3. Remove the resistor from TP915, TP916.

  • Page 11

    MDR-NC60 Procedure: – L-CH – 1. Connect an audio analyzer (impedance: 600 Ω) to the capacitor of TP913 and lead wire of TP2. 2. Connect the audio analyzer to the lead wire of TP2 and the lead wire of TP3.

  • Page 12

    MDR-NC60 MEMO...

  • Page 13: Diagrams

    MDR-NC60 SECTION 4 DIAGRAMS 4-1. BLOCK DIAGRAM HP BOARD (INPUT) (L-CH) SWITCH +2V (L) Q1, 2 AMP GAIN MIC AMP BUFFER BUFFER POWER AMP MUTING MIC1 MONITOR SWITCH MIC2 (MONITOR) (NOISE DETECT) MN BOARD MONITOR CANCELING GAIN VCC (L) SP101...

  • Page 14

    MDR-NC60 • Note for Printed Wiring Boards and Schematic Diagrams • IC Block Diagrams Note on Schematic Diagram: MR Board IC101 ML Board IC6 • All capacitors are in µF unless otherwise noted. (p: pF) 50 WV or MR Board IC106 less are not indicated except for electrolytics and tantalums.

  • Page 15: Printed Wiring Boards - L-ch Section

    MDR-NC60 4-2. PRINTED WIRING BOARDS – L-CH Section – : Uses unleaded solder. ML BOARD ML BOARD (SIDE A) (SIDE B) TP911 NATURAL MIC1 (MONITOR) TP915 TP910 TP015 (L-CH) TP906 TP916 NATURAL TP914 TP907 NATURAL IC52 MN BOARD MIC2 NOISE...

  • Page 16: Schematic Diagram - L-ch Section

    MDR-NC60 • See page 14 for Waveform. • See page 14 for IC Block Diagrams. 4-3. SCHEMATIC DIAGRAM – L-CH Section – 6.3V 4700p 0.033 TP915 3.3k TP916 (L-CH) 0.01 0.047 0.022 470k 0.01 TP901 POWER AMP TP902 BUFFER MONITOR SWITCH...

  • Page 17: Printed Wiring Boards - R-ch Section

    MDR-NC60 4-4. PRINTED WIRING BOARDS – R-CH Section – : Uses unleaded solder. • Semiconductor Location Ref. No. Location DRY BATTERY SAZE "AAA" D101 (IEC DESIGNATION R6) D102 1PC. 1.5V D141 MR BOARD MR BOARD (SIDE B) (SIDE A) D142...

  • Page 18: Schematic Diagram - R-ch Section

    MDR-NC60 • See page 14 for Waveform. • See page 14 for IC Block Diagrams. 4-5. SCHEMATIC DIAGRAM – R-CH Section – R204 R128 C122 R135 R126 4700p R202 R203 C138 C139 10 6.3V R129 R165 R136 R137 R163 -1-2...

  • Page 19: Exploded Views

    MDR-NC60 SECTION 5 EXPLODED VIEWS NOTE: • -XX and -X mean standardized parts, so they • Items marked “*” are not stocked since they may have some difference from the original are seldom required for routine service. Some one. delay should be anticipated when ordering •...

  • Page 20: Head Band Assy Section

    MDR-NC60 5-2. HEAD BAND ASSY SECTION not supplied Ref. No. Part No. Description Remark Ref. No. Part No. Description Remark A-1246-889-A HEAD BAND ASSY (EXCEPT AEP) 2-898-392-01 SPRING, SWIVEL A-1246-890-A HEAD BAND ASSY (AEP) 3-254-070-11 SCREW 2-898-414-01 HANGER (R) 2-898-412-01 STOPPER, HANGER (L)

  • Page 21: Electrical Parts List

    MDR-NC60 SECTION 6 ELECTRICAL PARTS LIST NOTE: • Due to standardization, replacements in the • RESISTORS When indicating parts by reference number, parts list may be different from the parts All resistors are in ohms. please include the board. specified in the diagrams or the components METAL: Metal-film resistor.

  • Page 22

    MDR-NC60 Ref. No. Part No. Description Remark Ref. No. Part No. Description Remark 1-240-711-91 METAL CHIP 1/20W < VARIABLE RESISTOR > 1-240-714-91 METAL CHIP 1/20W 1-240-714-91 METAL CHIP 1/20W 1-227-411-21 RES, ADJ, CERMET 22K 1-240-676-91 METAL CHIP 1/20W 1-227-411-21 RES, ADJ, CERMET 22K...

  • Page 23

    MDR-NC60 Ref. No. Part No. Description Remark Ref. No. Part No. Description Remark C173 1-100-415-11 CERAMIC CHIP 0.47uF 6.3V R122 1-240-724-91 METAL CHIP 330K 1/20W C174 1-100-504-11 CERAMIC CHIP 0.1uF 6.3V R123 1-240-707-91 METAL CHIP 1/20W R124 1-240-718-91 METAL CHIP...

  • Page 24

    MDR-NC60 Ref. No. Part No. Description Remark Ref. No. Part No. Description Remark < VARIABLE RESISTOR > RV101 1-227-411-21 RES, ADJ, CERMET 22K RV102 1-227-411-21 RES, ADJ, CERMET 22K ************************************************************ MISCELLANEOUS ************** X-2178-117-1 FRONT PLATE (R) ASSY (including MIC101, MIC102, SP101)

  • Page 25

    MDR-NC60 MEMO...

  • Page 26: Revision History

    MDR-NC60 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...

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