Author Topic: IFR 1200 checksum error fixed  (Read 4458 times)

0 Members and 1 Guest are viewing this topic.

Offline The Radio Shop

  • Administrator
  • Hero Member
  • *****
  • Posts: 6109
  • Karma: +322/-2
    • View Profile
IFR 1200 checksum error fixed
« on: June 21, 2014, 09:22:57 PM »
After quite some time of this issue I finally resolved the checksum issue on this unit.
On boot up the unit would give an error. What I found was a battery on the CPU board was dead, Not having a solder in coin cell battery on hand I simply mounted a coin cell hold to the rear of the CPU board. Was not enough room to mount on component side.

The battery solved the boot up problem.

https://www.youtube.com/watch?v=S7U9EGVQwPM
Buddy kc4umo