Sony MZ-NH1 Service Manual

SERVICE MANUAL
Ver 1.1 2004.09
US and foreign patents licensed from Dolby
Laboratories.
• SonicStage and SonicStage logo are trademarks or registered trademarks of Sony Corporation.
• MD Simple Burner, OpenMG, "MagicGate", "MagicGate Memory Stick", "Memory Stick", Hi-
MD, Net MD, ATRAC, ATRAC3, ATRAC3plus and their logos are trademarks of Sony Corporation.
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respective holders.
Audio playing system
MiniDisc digital audio system
Laser diode properties
Material: GaAlAs
Wavelength: λ = 790 nm
Emission duration: continuous
Laser output: less than 44.6 µW
(This output is the value measured at a distance
of 200 mm from the lens surface on the optical
pick-up block with 7 mm aperture.)
Recording and playback time (Refer
to page 94 for details)
When using HMD1G (1GB disc):
Maximum 34 hours in Hi-LP stereo
When using MDW-80 in Hi-MD mode:
Maximum 10 hours and 10 min. in Hi-LP
stereo
When using MDW-80 in MD mode:
Maximum 160 min. in monaural
Maximum 320 min. in LP4 stereo
Revolutions
350 rpm to 3,600 rpm (CLV)
Error correction
Hi-MD:
LDC (Long Distance Code)/BIS (Burst
Indicator Subcode)
MD:
ACIRC (Advanced Cross Interleave Reed
Solomon Code)
Sampling frequency
44.1 kHz
Sampling rate converter
Input: 32 kHz/44.1 kHz/48 kHz
Coding
Hi-MD:
Linear PCM (44.1 kHz/16 bit) — PCM
ATRAC3plus (Adaptive TRansform
Acoustic Coding 3 plus)
Sony Corporation
9-879-075-02
Personal Audio Company
2004I05-1
Published by Sony Engineering Corporation
© 2004.09
For other Service and User Manuals, go to www.ManualDepot.com
Model Name Using Similar Mechanism
MD Mechanism Type
Optical Pick-up Name

SPECIFICATIONS

MD:
ATRAC
ATRAC3 — LP2/LP4
Modulation system
Hi-MD:
1-7RLL (Run Length Limited)/PRML
(Partial Response Maximum Likelihood)
MD:
EFM (Eight to Fourteen Modulation)
Frequency response
20 to 20,000 Hz ± 3 dB
Inputs
1)
MIC: stereo mini-jack
(minimum input level 0.13 mV)
Line in:
stereo mini-jack for analog input
(minimum input level 49 mV)
optical (digital) mini-jack for optical
(digital) input
Outputs
2)
i/LINE OUT : stereo mini-jack (dedicated
emote control jack)/194 mV (10 kΩ)
Maximum output (DC) 2)
Headphones:
5 mW + 5 mW (16 Ω)
Power requirements
Sony AC Power Adaptor connected at the DC
IN 6V jack:
120 V AC, 60 Hz (Models for USA, Canada,
Mexico, and Taiwan)
240 V AC, 50 Hz (Model for Australia)
230 V AC, 50 Hz (Models for U.K. and
Hong Kong)
220 V AC, 50 Hz (Model for China)
100 - 240 V AC, 50/60 Hz (Other models)
PORTABLE MINIDISC RECORDER
MZ-NH1
US Model
AEP Model
UK Model
Australian Model
Chinese Model
Tourist Model
The recorder:
Lithium-ion rechargeable battery
LIP-4WM, 3.7 V, 370 mAh, Li-ion
Battery charging stand:
AC power adaptor DC 6V
Operating temperature
+5° C (+41° F) to +35° C (+95° F)
Battery life 4)
Hi-MD mode (When using a 1GB Hi-
MD disc)
(Unit: approx.hours)(JEITA
When Linear Hi-SP
PCM
Recording 6 8.5
continuously
Playing 10 15.5
continuously
Hi-MD mode (When using a 60/74/80-
minute standard disc)
(Unit: approx.hours)(JEITA)
When Linear Hi-SP
PCM
Recording 5 8
continuously
Playing 8 14.5
continuously
– Continued on next page –
E Model
NEW
MT-MZNH1-181
ABX-U
3) )
Hi-LP
9.5
18
Hi-LP
9
17.5