After hooking up a scope, I think the encoder is bad. I'm seeing negative
going pulses on the A pin but not seeing positive going pulses on the B pin.
On Sat, Jun 21, 2014 at 6:41 PM, Barry N1EU <firstname.lastname@example.org> wrote:
> I measure 4.9V on the A9 board. I flipped the rig over and now I'm
> measuring 4.3V on the encoders (?!). Not sure what's going on. vfoA
> encoder is still working fine.
> Barry N1EU
> On Sat, Jun 21, 2014 at 6:34 PM, Barry N1EU <email@example.com> wrote:
>> I measure 4.63V on both tuning encoders. And both encoders work on the A
>> cable, so it doesn't seem like that would explain it. But I'll poke around
>> the A9 board. I replaced all the A9 capacitors a few months ago.
>> Thanks & 73,
>> Barry N1EU
>> On Sat, Jun 21, 2014 at 5:23 PM, shristov <firstname.lastname@example.org> wrote:
>>> Barry N1EU <email@example.com> wrote:
>>> > Thanks Sinisa. vfoB would not tune at all.
>>> I had the same problem. VFO B encoder had a supply voltage of only 4.66
>>> After tightening 4 fixing screws on the A9 board, the voltage at encoder
>>> rose to 4.77 V
>>> and it started workig.
>>> TenTec mailing list
TenTec mailing list