NW-MS77DR
Canadian Model
AEP Model
UK Model
Tourist Model
SERVICE MANUAL
NETWORK WALKMAN
Sony Corporation
Personal Audio Company
Published by Sony Engineering Corporation
9-877-781-02
2004E02-1
© 2004.05
SPECIFICATIONS
Ver 1.1 2004. 05
Maximum recording time
When using the built-in flash memory only:
ATRAC3
ATRAC3plus
4 hr. 10 min. (132 kbps)
2 hr. (256 kbps)
5 hr. 20 min. (105 kbps)
8 hr. 40 min. (64 kbps)
8 hr. 30 min. (66 kbps)
11 hr. 40 min. (48 kbps)
When using “Memory Stick” (64MB):
ATRAC3
ATRAC3plus
60 min. (132 kbps)
30 min. (256kbps)
80 min. (105 kbps)
130 min. (64 kbps)
120 min. (66 kbps)
170 min. (48 kbps)
When using “Memory Stick” (128MB):
ATRAC3
ATRAC3plus
120 min. (132 kbps)
60 min. (256kbps)
160 min. (105 kbps)
260 min. (64 kbps)
240 min. (66 kbps)
350 min. (48 kbps)
Sampling frequency
44.1 kHz
Audio compression technology
Adaptive Transform Acoustic Coding3 (ATRAC3)
Adaptive Transform Acoustic Coding3plus
(ATRAC3plus)
Frequency response
20 to 20,000 Hz (single signal measurement during playback)
Output
Headphone: Stereo mini-jack
Signal-to-noise ratio (S/N)
79 dB or more (excluding ATRAC3 66 kbps)
Dynamic range
85 dB or more (excluding ATRAC3 66 kbps)
Operating temperature
5
°
C to 35
°
C (67
°
F to 95
°
F)
Power source
• DC IN 1.2 V (from built-in rechargeable battery)
• DC IN 4.5 V (from AC power adaptor)
• USB power (from a computer through supplied USB cable)
Battery life (continuous playback)
ATRAC3 format: Approximately 44 hours
ATRAC3plus format: Approximately 36 hours
Dimension
36.4 x 48.5 x 18 mm (1
7
/
16
x 1
15
/
16
x
23
/
32
inches)
(w/h/d, projecting parts not included)
Mass
Approx. 54 g (1.9 oz) (“Memory Stick Duo” not included)
Supplied accessories
Recording USB cradle (1)
Headphones (1)
Dedicated USB cable (1)
AC power adaptor (for the supplied USB cradle) (1)
Carrying pouch (1)
Extension headphone cord (1)
Optical Digital cable (1)
Neck strap (1)
CD-ROM (1)
Operating Instructions (1)
SonicStage Operating Instructions (1)
Design and specifications are subject to change
without notice.
