Operation; Audio Player - Omnitronic PAM-70 User Manual

8. OPERATION

1
Prior to switching on, turn down the master control for the overall level to the left stop position to avoid a
possible switching-on noise.
2
First switch on the connected audio sources, then the PAM-70 PA system. The [POWER] indicator
lights green. If an additional amplifier system has been connected, switch on the PAM-70 PA system
last.
3
After operation switch off the units in reverse order: additional PA system
sources.
4
If the red indicator [LOW] lights during battery operation, the battery must be charged. If the device
remains in operation, an emergency switch-off deactivates the device to protect it from total discharge.
The operating time with a fully charged rechargeable battery is, at full volume, between 7 and 8 hours.
The time of operation that can be reached depends on volume, the age of the rechargeable battery and
the ambience temperature.
Prior to operating the PA system off mains for the first time, the rechargeable battery must be fully
charged ( 6.2).
5
First set all level controls back to the left stop position.
6
Adjust the master control for the overall volume to a level that the subsequent adjustments can be
heard well via the speaker system.
7
Switch on the audio player ( 8.1) as well as the other external signal sources, speak into your
microphone or play your instrument and set the input sensitivity with the corresponding volume controls
so that the sound is not distorted but as loud as possible. Turn back the controls of the signal sources
not used.
Do not direct any microphones to the integrated speaker. This can result in dangerous and unpleasant
acoustic feedback which will generate a loud whistling sound.
8
Determine the definite level for the master volume of the PA system with the master control.

8.1 Audio player

1
Switch on the audio player with the switch [USB/SD].
2
To play audio files on a USB device insert it into the USB port.
To play audio files on an SD(HC) card insert it into the card slot with its contacts pointing upwards and
the notched corner to the right until it engages.
To eject a memory card, slightly press it into the slot until it comes out and can be removed.
Prior to removing a data carrier, always terminate the playback with the button [Q ] to avoid damage or
loss of data.
3
After loading a data carrier, it is selected as the playback medium and read in. After the read-in, the
total number of titles will be shortly displayed. Afterwards information concerning the first title will follow.
The player will be set to pause on the first title.
Data carriers that are already inserted when switching the audio player on will not be recognized and
the unit indicates [NO SD]. In this case, reinsert the data carrier.
4
Press the button USB/SD in pause mode to switch between the data carriers. The LEDs [USB] and
[SD] will verify which source is active.
Regarding data carriers
This unit supports data carriers with the file system FAT32 and with a capacity up to 32 GB. Max. 999
•
files will be recognized.
This unit supports MSC (Mass Storage Class) USB storage devices 1.0, 1.1, 2.0 including external
•
portable flash memory devices and digital audio players. However, hard discs, optical discs such as
external CD/DVD drives will not be recognized. Depending on the device used, proper playback may
not be possible with all USB storage devices. However, the audio output of an audio player can also
be connected to the [AUX] input using an adapter cable.
This unit supports SD and SDHC memory cards.
•
If a data carrier is not recognized at the first try, remove it and insert it again.
•
When connecting a data carrier with a large number of folders and files, some time may be required to
•
read in the contents.
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PAM-70 audio
00072696.DOC, Version 1.1