Hi Ben,
Thank you for the information!!! I will look to see if that cap is wrong!
73, and thanks,
Dave (NK7Z)
https://www.nk7z.net
ARRL Volunteer Examiner
ARRL Technical Specialist, RFI
ARRL Asst. Director, NW Division, Technical Resources
On 4/12/21 3:37 PM, w4sc wrote:
I had a similar problem.
I purchased a P3 kit in 2015, assembled, and it worked well. The firmware as
received, was a rev behind. Trying to upgrade via the normal method, was
unable to accomplish. Trying to force an upgrade, was unsuccessful. Had to
return for warranty repair. The EEPROM was corrupted.
All was OK until about 4 years ago, the P3, occasionally, would not boot up. I
received some guidance from one of the engineers, to check a capacitor in the
P3 power supply. If it was a tantalum (10 uF I believe), it was the incorrect
value, and to change to 0.1uf (1206 sized). After the capacitor change, no
more powerup issues. I believe there was a supply sequencing issue.
I am looking for the details, and when found, I will post.
Ben W4SC
Sent from Mail for Windows 10
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