Crown Xti Known Issues - Crown XTi series Service Manual

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Crown XTi Known Issues:

1. Amplifiers built before September 2006 must use the CLoader utility and .hex file to update firmware. See
detailed instructions at:
http://www.crownaudio.com/amp_htm/cdi-dsi-xti-firmware-update.htm
2. Older versions of firmware (prior to 1.1.2.9) sent the full serial number to the Windows HID driver. If this
driver receives any zeros in the serial number, it will not allow more than one USB amplifier online at a time
and will in fact crash very hard when this occurs. This problem was resolved in version 1.1.2.9.
3. If a firmware download is interrupted at anytime it is possible the amplifier could be rendered unusable.
However, most times it can be easily recovered. Simply power cycle the amplifier and attempt the firmware
download again using either System Architect or the CLoader 2.19 utility if necessary. Note that the front panel
LCD may display garbage or be blank until the full update has been successful.
4. When using USB hubs, make sure they are powered. Random problems have been observed when using
hubs that are powered from the host or do not have their own power source.
5. The latest XTi firmware is always contained in the System Architect download. So when you install the latest
release of System Architect, the newest firmware will be automatically included.
6. Some xti-4000 amplifiers were built in the spring of 2007, which may not show up in the Venue View in
System Architect. It can be detected if you open the Network Wizard window, the device will appear, but the
description field will contain an invalid character. You will not be able to use System Architect until the
firmware has been reloaded. You must use the CLoader Utility (contained in the SA download, separate
application). NOTE: The new firmware (1.1.3.x or newer) must be downloaded TWICE!!! After that, the
amplifier should work just fine with System Architect with no problems.
7. In firmware versions later than 1.1.2.9, the LCD preset name may go blank or display "DSP OFF" regardless
of the current preset. This occurs only the user selects to "Send Settings To Device" and Include Presets is
checked from the sync window prompt. This bug only affects the displayed preset name, all DSP settings
should be correct. To work around this problem simply recall the preset from either the front panel or software
and the name and all stored settings will be updated.
8. In firmware versions 1.1.3.11 and 1.1.4.1 the input clip indicator in System Architect did not work. This bug
has been fixed in later versions of firmware.