Panasonic RAMSA WR-DA7 - Manual (Page 25)

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Troubleshooting
Although it is rare, under some circumstances you may experience problems
with the upgrade procedure. The most common problems arise when there
is an interruption to the transmission of the data. This can be caused by a
power failure, or by accidentally removing the upgrade cable during the
upgrade process.
If this occurs, you will probably end up with a blue screen on the DA7 and it
will not operate. However, you can still upgrade the DA7 in the following
manner.
1) Power on the DA7. (The DA7 displays only a blue screen.)
2) Open the Upgrade Utility and restart the upgrade procedure. Follow
all the directions in the upgrade procedure, but do not perform any
functions that require you to operate the DA7.
3) Once you have started the procedure, you will see the bar graph
transmitting in Step7, but the READ button and WRITE buttons on
the Top Panel may not light or flash, or may flash in a unnatural
pattern. This is normal.
4) You may also have to perform the above procedure several times,
because you have to re-synchronize the Upgrade Utility and the
internal processor of the DA7. Rest assured that it will perform the
upgrade once this synchronization takes place.
If the message “It can’t be connected with DA7. Confirm the port setting.” or
“Communication error. Confirm the connection.” is displayed, check the
following:
Connections
• Confirm if the correct type of cable is being used.
• Confirm that the DA7 and the computer are connected with the correct
port settings.