HELIX PP50DSP Operating Instructions Manual page 9

The following window will appear if the PP50 DSP or P-DSP is not connected correctly or the USB
drive is not installed correctly.
You can still start the software in demo mode. However, it is not possible to make any adjustments
in demo mode as the device is not connected.
If you start in demo mode, you then have the option of selecting the user interface for the specific
device. The user interface will open automatically on selection.
Important information about the PP50 DSP:
• If you start the software in demo mode, it will not recognize any optical and USB interface sub-
sequently connected. It is then necessary to close the program completely and restart it.
• Once the PP50 DSP has been connected to the PC via the HELIX USB Interface, the amplifier
will be in PC mode, which deactivates various functions such as the under voltage detector or
the automatic switching on/off using High Level or Remote, for example. This status remains
active until you close the software again correctly using the "Close" button. It is not enough to
simply break the connection between the PC and the PP50 DSP. If you do this, the amplifier
remains in DSP mode for up to an hour and does not switch off, even if you switch off your car
radio!
Important information on the P-DSP
• Once the P-DSP has been connected to the computer and the PC-Tool started, the P-DSP will
be in PC mode. However, it does not remain switched on if the remote input signal or high level
signal is switched off. Please ensure that these signals remain switched on during the configu-
ration process.
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