APART PC1000RMKII User manual

PC1000RMKII
Instruction manual

Instruction manualPC1000RMKII
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PC1000RMKII Manual

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MEDIA PLAYER
Features
The Apart PC1000RMKII is a professional multisource CD/USB/SD
card music player, equipped with balanced and unbalanced analog
outputs, coaxial and optical digital outputs and a RS232 port for
use in automated systems.
The maximum analog output level can be preset at the back to
match the output level of other audio sources, such as tuners and
other media players.
The unit can be controlled by the front panel controls infrared
remote (included), infrared remote extenders or RS232 commands.
A list of the available RS232 commands is included in this manual.

Instruction manualPC1000RMKII
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Front panel
1. Power led: this led lights up red when in standby, and becomes
blue when the unit is powered on.
2. CD drawer.
3. Infrared eye and display, showing playback status, tracknumber
and time information.
4. Stop button: press to stop playback.
5. Play/pause button: push to start playback, push again to pause
playback...
6. Fast backward button: push once to search backwards. Push
again to resume normal playback.
7. Fast forward button: push once to search forwards. Push again
to resume normal playback.
8. CD eject button: push to open CD drawer, push again to close.
Please note that the play button will also close the drawer.
9. Standby button: push to switch the unit into standby mode,
indicated by the power led lighting red.
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10. Next track button: push to move to the next track.
11. Previous track button: push to move to the beginning of the
current track or the previous track.
12. Repeat button: push to switch between repeat-1 (repeat one
track) or repeat all. Push again to resume normal playback.
13. Random button: push to switch to random playback. Push
again to resume normal playback.
14. USB-SD-CD button: push to switch between USB, SD or USB
playback. Default source is CD, but when no CD is present,
the unit will automatically search for media on the SD and USB
slots. Please note that it may take a few seconds for the unit
to react when switching sources. This is not a malfunction and
depends on the amount of data present on the selected media.
15. SD card slot.
16. USB slot.
17. Power switch. switch device on or off.
18. Removable rackears, for use in 19 inch racks or as a standalone
unit in hifi chains etc.

Instruction manualPC1000RMKII
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Rear panel
1. Right channel balanced output. The maximum level can be set
with level knob 4.
2. Left channel balanced output. The maximum level can be set
with level knob 4.
3. Unbalanced output on cinch connectors. The maximum level
can be set with level knob 4.
4. Level knob: to preset the maximum output level on the analog
outputs.
5. Update. Unused connector.
6. Optical digital output on Toslink ™. Output format is SPDIF, 16
bits, 44.1 kHz sampling rate.
7. Coaxial digital output on cinch. Output format is SPDIF, 16 bits,
44.1 kHz sampling rate.
8. USB slot. This is a copy of the front USB slot, use the front or
the rear slot, not both simultaneously!
9. SD card slot. This is a copy of the front SD card slot, use the
front or the rear slot, not both simultaneously!
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10. IR in. Infrared command input on stereo minijack. Connect a
suitable infrared eye here. Please note that the front IR eye will
be disabled when a jack is inserted here.
11. RS232 port for external control on SUB D9 connector.
For control purposes only. The radio or CD/USB/SD media
information is not available on the serial port.
12. Fuse holder. Contains a 500 mA slow blow fuse. Replace only
with a fuse of identical voltage and current rating!
13. Mains cable inlet.
14. Operating mode switch:
Autoplay: the unit will start playing back at power up.
Cue: the unit will wait for a play command after power up,
or when in stop or pause. This function allows a track to be
selected without playing it back automatically.
Note: the output level can also be adjusted during playback
via the infrared remote or serial control commands. This
volume control is located before the master output level knob
(4) on the rear of the unit. After waking up from standby or
after power up, the volume level is automatically reset to the
maximum as set by the rear volume knob.

Instruction manualPC1000RMKII
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RS232 communication
Communication with PC1000RMKII via RS232 is done with simple
ASCII commands. The port settings are: 38400 baudrate, 8
databits, no parity, handshake off. These parameters cannot be
changed. The physical connection is made with a straight through
wired 9 pin serial cable (NO null modem cable!) Maximum wire
length depends on cable quality and influence caused by external
interference.
Serial commands used in PC1000RMKII have been simplified and
consist basically of a command such as PLAY, STOP, ... commands
are not case sensitive.
Some commands require an attribute, such as TRACK #, where #
stands for a numeric value, in this case the track number. The unit
needs no carriage return <CR> at the end of the instruction.
From here we assume that you are familiar with RS232
communication protocols and hardware. If not, please read the user
manual of your control device first. In case you are experiencing a
problem with serial communication, start at the basics, connect a
computer with a working serial port, use the right serial cable, use
a simple terminal program, make communication settings and start
from there.
Please note that most commands sent from the infrared remote
control will also be shown on the serial port. This is the easiest way
Pin 2: TX data : data transmission output.
Pin 3: RX data : data transmission input.
Pin 5: GND : ground
Other pins are not used.

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to find out whether your serial communication settings are correct.
Unknown characters in your terminal communication program
usually indicate that the baudrate is incorrect.
Below is a table with the list of commands recognized by
PC1000RMKII and some examples of the replies sent by the
PC1000RMKII.