Specifications

Alpha 9500 HF Linear Amplifier Operating Manual Alpha Radio Products
Maintaining and Upgrading the Amplifier Product Release 1
DOCNUMBER 9500
Document Issue 1, Revision 7
Page 8–6 June 2009
88
8
NOTE:
The bootloader menus for setting the COM port and the baud rate
are a little quirky. Although it may look as if there are no other
options from which to choose, there is a little area on the drop-
down menu where you can click to show the other choices. If you
have trouble with this, contact ALPHA directly.
The bootloader recognizes only COM ports 1 to 9. The amplifier
is normally assigned to COM port 6. Confirm this by going to the
PC’s Device Manager and checking the computer properties.
The correct baud rate is 115,200.
!
IMPORTANT Check only Reload before Program and Reset after Program.
DO NOT check Program data EEPROM, as doing so wipes out all of
your factory calibrations.
Step 5 With the amplifier still turned off, reset the master microprocessor
(hereafter called the processor) by doing the following in quick
succession:
5a On the PC, press F4.
5b On the amplifier, press the FLT button (just below the 7-segment
display on the far right).
The firmware begins to download to the mains controller; a blue progress
bar shows the progress. The process completes in a few minutes.
Step 6 After the download has completed, repeat Step 5 to reset the processor
again.
Resetting the processor twice ensures that the new firmware loads
correctly and takes effect.
Step 7 If the PC cannot see an additional COM port when the USB cable is
plugged into the amplifier, run the VCP installer software.
On the Secondary
Boards
There are four secondary boards:
•
Display board
•
Mains board
•
Sound generator board
•
Stepper motor board
These boards are shown in the figures below.