Sony HAP-Z1ES Guide De Référence page 7

About repairing the internal hard disk drive
 When conducting repairs or diagnostic checks, it may be necessary to
access data stored on the hard disk drive for repair and testing purposes
to verify how a problem occurred and to determine possible remedies.
However, titles of files or any other information will not be duplicated or
saved by Sony.

If replacement or initialization is required, the hard disk drive will be
formatted at our discretion. Be aware that all of the existing data on the
hard disk drive will be erased (data covered by copyright laws).
 In regards to storage and disposal of the replaced hard disk drive, Sony
will employ strict controls within reasonable limits, and assume full
responsibility to ensure that third parties, including business partners to
whom the storage and disposal work is delegated, do not mishandle the
data on the hard disk drive.
Disclaimer on compensation for lost recordings
Sony is not liable and will not compensate for any lost recordings or related
losses, including when recordings are not made on the unit or external
media/recording device due to reasons including unit failure, or when the
data of a recording is lost or damaged as a result of the unit or external
media/recording device failure or repair undertaken to the unit. Sony will
not restore, recover, or replicate the data under any circumstances.
We recommend you appropriately back up data stored on the hard disk
drive of the unit, using your computer.
If you do not have the original data on your computer anymore, we
recommend you copy the data on the hard disk drive of the unit to your
computer and back that up.
Make sure you back up your data as stated above before sending the unit
for repair.
For details on how to copy data on the hard disk drive of the unit to your
computer, refer to the Help Guide.
Specifications
Playback Specifications
Frequency response
2 Hz - 80 kHz (–3 dB)
Dynamic range
105 dB or higher
THD
0.0015% or less
Network section
Wired LAN
1000BASE-T/100BASE-TX/10BASE-T
Wireless LAN
Compatible standards
IEEE 802.11 b/g/n
Frequency band/channel
2.4 GHz band: channels 1-11
HDD section
Capacity
1 TB*
* Some portions of the capacity are used for data management.
Therefore, the capacity a user can use is less than 1 TB.
Supported playback format
DSD (DSF, DSDIFF), LPCM (WAV, AIFF), FLAC, ALAC, ATRAC Advanced
Lossless, ATRAC, MP3, AAC, WMA (2 channels)
Jack section
Output jacks
LINE OUT UNBALANCED
Output level: 2.0 Vrms (50 kilohms), Impedance: 10 kilohms or
higher
LINE OUT BALANCED
Output level: 2.0 Vrms (50 kilohms), Impedance: 600 ohms or
higher
EXT port
Type A USB, Hi-Speed USB, for connecting an external hard disk drive
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