12. FIRMWARE UPDATE
A firmware update keeps the device software up-to-date and improves software performance. When you install the latest LD OCS software
onto your PC and connect an LD DSP44K or DSP45K power amp with your computer, the OCS software will automatically indicate when
newer device firmware is available than that currently installed for the power amp (Fig. A). Be very diligent with firmware updates,
complete all steps exactly as instructed, do not interrupt the update process, and ensure that the USB connection between
the PC and the power amplifier is not interrupted. If the firmware update is not allowed to finish properly, the power amp
may become damaged and unusable.
A
The firmware updater is automatically installed when installing the latest LD OCS software. You will find the firmware updater in the
Windows Start menu.
Start the firmware updater and follow the steps shown carefully!
1. Switch off the power amp.
2. Hold the A and D and MENU buttons of the power amp at the same time (up to firmware 1.0.2., firmware 1.0.3+: A button and MENU)
3. Switch on the power amp and hold the three buttons until "BOOTLOADER MODE" is shown on the device display. Do not press any
control buttons until the update has completed.
4. Connect the power amp and the PC using a suitable USB cable (USB 2.0, USB-A to USB-B).
5. Click on the Connect button in the updater window. "Device connected" will now be shown in the information window.
6. Now click on the Erase-Program-Verify button. The process will take a moment.
7. As soon as the update process is complete, this will be shown on the information window ("Programming completed" and "Verification
successful"). Now switch off the power amp and switch it back on after a short time. The OCS software can now be started as usual.
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