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KSA-i400 Owner's Reference
Factory Restore
This will restore any internal settings back to their factory default values. Turn on the KSA-i400 from
the rear panel. Wait 2 seconds after the green stand-by lights come on then press and hold the
power button until the green lights begin to fade out and in; release the power button. After about 13
seconds the lights will go off and then come back on steady. The factory restore is done.
If the Web interface is inaccessible and the LAN connection is good, a factory restore may solve the
problem.
Software Update
Note: Upon reaching a certain point in the update process power must not be removed from the
KSA-i400. If this happens, the unit may be rendered inoperable. Read through the entire
software update process before attempting to perform a software update.
From time to time Krell may release new versions of software to add features or fix a problem. The
KSA-i400 must be connected to the LAN router with access to the Internet in order to perform the
software update. With the KSA-i400 in stand-by press and hold the power button until the green
stand-by lights begin to flash; release the power button.
While the green lights are flashing the unit is checking for newer software. If they stop flashing and
stay steady that means the unit already has the latest software. If the lights change to red that
means it was unable to connect to the server to check for software updates. This can be caused by
a lack of connection to the LAN or the router not allowing the KSA-i400 to connect to the Internet.
If there is new software available, the lights will start to flash blue. The KSA-i400 is downloading the
software update. If the lights change to red that means the download failed. Sometimes this can be
caused by slow response over the Internet. Try the software update again later.
When the unit is done downloading the software the lights will flash blue with two flashes per period.
The unit is copying and verifying the software download. If the lights change to red there was a
problem with the downloaded file. Try the software update again later.
Do not turn the unit off or otherwise remove power beyond this point in the software
update process!
The lights will go off at this point and then come back on blue, fading in and out rapidly. The program
memory is being overwritten. The lights will then go off briefly and then come back on steady green.
The KSA-i400 is in stand-by and is ready to use.
© 2022 by Krell Industries LLC. All rights
reserved.
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