PAGE 9
USER MANUAL - PMA1020 PRECISION 2-WAY WIRELESS ACTIVE PA SYSTEM
• File/Folder Structure. The PMA1020 only allows a two-layer folder structure on the solid
state media memory, meaning a root layer and a folder layer, but not cascaded folder-in-folder
structures. Such subfolders will be ignored and their content is not available for playback. Play-
able files located in the root layer are displayed in a folder named “ROOT” although this folder
does not physically exist on the solid-state memory media.
• Folder Sorting. Folders are displayed in the sequence of their creation date on the s olid-state
memory media. If a specific sequence is needed, then the folder shall be created in this
sequence on the memory media before copying any MP3 files into them.
• File Sorting. Files are sorted alphanumerically, but due to file system limitations, the sorting
is limited to the first eight characters. This may, in some cases — where the first eight charac-
ters are identical — lead to a seemingly random, non-alphabetical sequence.
• File system cache. In order to allow a relatively quick access to the file directory during naviga-
tion, the PMA1020 loads a copy of the file directory into its own memory upon insertion of the
solid-state memory media. This loading process requires some time, during which the display
shows a countdown. The time required is about four seconds per 100 tracks with a maximum
of 2000 tracks (meaning max. 80 seconds loading time).
• Displayed File/Folder names. The display scrolls the first 30 characters of the MP3 file
names; any characters beyond the first 30 will be ignored. Note that the display data is the file
name and NOT the ID3 tag of the file. Folders are displayed with the first 10 characters of their
names, any exceeding characters will be ignored.
Jingle Player
The PMA1020 features a jingle player with a one-shot mode for teasers and a scheduled mode for
commercial purposes (like playing advertisements in a certain sequence). To make use of the feature,
the user must create a folder named “Jingles” on the solid-state memory media. The folder must have
exactly this name (with capital J followed by lowercase letters) and will not be available for selection
during normal playback.
The jingle files stored in this folder have to be prepared with specific names as well, and have to follow
the structure jx_yy, where x is a number from 1 to 3 and yy a number from 00 to 99. In this format,
x defines the jingle number (with a maximum of three jingles allowed) and yy the number of minutes of
background music the jingle is followed by in scheduled jingle play mode. For example, were there to
be three jingles named j1_01.mp3, j2_04.mp3 and J3_05.mp3. These three jingles would be avail-
able for direct, one-shot playback pressing the jingle buttons
(29)
, with each jingle assigned to the
respective button.
Scheduled jingle play mode can be activated by pressing and holding the J1 button for more than two
seconds. The jingles are, thus, inserted into the program in an automatic sequence with a certain
duration of background music in between. In the above example, Jingle 1 would start to play back
immediately followed by one minute of background music, then Jingle 2 followed by four minutes of
background music, then Jingle 3 followed by five minutes of background music. This sequence would
loop endlessly. If less jingles are stored in the Jingles folder, the loop runs after the last available jingle.
This means, for example, that if there is only one jingle named j1_02 stored in the Jingles folder, the
jingle would play every two minutes in Scheduled Jingle play mode.
Wireless Receiver
MIC ANTENNA connector. This BNC connector is meant for the wireless antenna supplied.
POWER-VOL control. Use this dial to turn on and off the receiver and to adjust the volume of
the wireless transmitter. To switch on the receiver and increase the transmitter volume, turn
the control clockwise. To switch off the receiver, turn the control fully counterclockwise until
you hear a click.
42
43
