Toa D-901 User Manual
Page 76

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[If "No Reply" is displayed]
If the screen on the right appears after clicking the
Update button, confirm the following:
• RS-232C cable specification and connection
Check that 9-pin straight cable (male - female) is
used.
• RS-232C settings at the D-901 (p. 70)
Check that the control mode is set to UPDATE*.
* Set "NONE" for the version 1.xx firmware.
• PC communication settings (above on this page)
After confirming all the above items, follow the procedure from Sep 3 again.
If the same "No Replay" indication still appears in this Step 6, turn the D-901's power off, and on
again. Then, follow the steps again from the beginning.
The following screen appears after the update ends.
Step 6. Click the Update button of the D-901 Firmware Update screen.
The firmware update starts being transferred from the PC to the D-901.
Step 5. Set the PC's Com port the D-901 is connected to, and the Speed (baud rate*) equal to the D-901's
RS-232C transmission rate.
Click OK, then the Comm Settings screen closes.
* Set the same value as that set in Step 2.