I believe the MAX 7219 is not a microprocessor, but merely an
inexpensive display driver. This is fortunate, because it means no
programming of a microprocessor is required. The MAX 7219 is available
in several packages. If you have a photo of the PCB, you can match the
package to the correct version of the device. With luck, you’ll be
able to use the 7219 with an easy-to-replace dual inline version. The
price is a dollar or two for a replacement.
73,
Jim W8ZR
Sent from my iPhone
> On Apr 4, 2024, at 3:45 PM, Bob Sanders via Amps <amps@contesting.com> wrote:
>
> Dick Byrd, the Alpha repair specialist, is near Atlanta.He has no equal in
> the repair of Alpha amps.service@n4uq.com Bob ww4t@aol.com
> In a message dated 4/3/2024 6:21:23 AM Eastern Daylight Time,
> amps@contesting.com writes: I have an Alpha 8410 that I brought back from the
> station in Martinique. It needs a new contol board as it does not turn on.
> Alpha wants $1600 for the part.[Amplifier Repair and Restoration - Island
> Amplifier BEKO RF-KIT USA](https://islandamplifier.com/amplifier-repair/)I
> would like to instead try and replace the MAX 7219 microprocessor on the
> board. There are various types of this micoprocesor that are being sold.
> Anyone know the exact part?If all else fails, I would like to find another
> control board, but not from Alpha for $100. The or purchase a replacement
> control , but not from Alpha.The unit is presently with Island Amplifier in
> California._______________________________________________Amps mailing
> listAmps@contesting.comhttp://lists.contesting.com/mailman/listinfo/amps
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