Chapter 6: Maintenance and Adjustments
SPD-M20A Service Manual
69
NOTE
For the SPD-M20A, the version upgrade file name is in the format
"m20aXXX.rom" (where XXX indicates the version number).
7) During the version upgrade process, the status indicator on the front of the instrument
continues blinking.
After 30 seconds to 1 minute elapses, the status indicator light goes off, and a screen
is displayed indicating that the rewrite operation is completed. Press the Logout button
to complete the upgrade operation.
8) Turn off the instrument, and then turn it on again to start up using the new ROM
version.
< Upgrade by Way of RS-232C (1) >
In the event that the ROM content is destroyed due to power cutoff during the ROM
upgrade process, etc., when the instrument is turned ON, the status indicator blinks green
and orange alternately. In this situation, the ROM version can be upgraded (rewritten) via
the serial port using the following procedure.
1) Connect the COM ports of the instrument to be upgraded and a PC using an RS-232C
cross-over cable. If there are multiple COM ports, use COM1.
2) Switch on the power to the instrument.
Verify that the status indicator is blinking green and orange alternately. Only in that
condition the upgrade can be conducted.
3) Run the version upgrade program "Fupdate.EXE".
4) Specify the COM port, and select the ROM file name. The baud rate is set
automatically.
NOTE
For the SPD-M20A, the version upgrade file name is in the format
"m20aXXX.rom" (where XXX indicates the version number).
5) Press the [Start] button. The current version and new version are displayed. Confirm
that the information is correct, and press the [OK] button.
NOTE
If [Cancel] is pressed here, the instrument must turned off, and then on again.
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