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The service manual is as described and received the link to the download sooner than expected. Great service, quality product. This site is a big help in the electronics repair business.
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Il service manual molto accurato. Rapidi nella risposta
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Quick site processing. A complete and very useful manual with all details. Thank you!
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Quick service response. A useful and very rare service manual with all details. I recomend this service.
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I ordered this manual sometime in the afternoon and I received it on my e-mail the same evening.
This is a fantastically good and properly scanned copy of the original manual. All pages are of the same scale and they overlap each other. It means that you can print the manual and easily make it as a convenient paper manual.
The content of the manual is fantastic. Alignment descriptions, PCB layouts and elementary diagrams are explicit and precise. I immediately found what I was looking for. Thanks to this manual and Owner-Manuals.com my amplifier is alive again. Many thanx indded!
MDR-NC50
SERVICE MANUAL
Ver. 1.2 2005.02
US Model Canadian Model AEP Model UK Model E Model Tourist Model
SPECIFICATIONS
General Type Driver units Power handling capacity Impedance
Dynamic, closed 40 mm, dome type 100 mW 40 � at 1 kHz (when the power is on) 100 � at 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 14 � 22,000 Hz Frequency range of active noise attenuation 40 � 1,500 Hz, more than 14 dB at 300 Hz Power source DC 1.5 V, 1 � R03 (size AAA) battery Mass Approx. 290 g (11 oz) including battery
UNLEADED SOLDER Boards requiring use of unleaded solder are printed with the leadfree 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.
Battery life
Battery Sony alkaline LR03/AM-4 (N) (size AAA) battery Sony manganese R03/ UM-4 (NU) (size AAA) battery Approx. hours*1 30 hours*2 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.
Supplied accessories Connecting cord (0.5 m, gold-plated stereo mini plug (1) (Tourist only),
1.5 m, gold plated L type stereo mini plug (1)), R03 (size AAA) dry battery (1) (Tourist only), Carrying case (1), Plug adaptor for in-flight
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
use* (single/dual) (1), Gold-plated unimatch plug adaptor (stereo phone plug y stereo mini jack) (1), Operating Instructions (1) * May not be compatible with some in-flight music services. Design and specifications are subject to change without notice.
NOISE CANCELING HEADPHONES
9-879-314-03
2005B05-1 © 2005.02
Sony Corporation
Personal Audio Group Published by Sony Engineering Corporation
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