[Elecraft] OT: Looking for schematic and troubleshooting info on MFJ-223 VNA

hawley, charles j jr c-hawley at illinois.edu
Thu Aug 22 20:57:47 EDT 2019


I have an MFJ 226 and it seems fine. But a friend had that one too and opted to get a Rig Expert analyzer to replace it because he liked it better. 
Might be a chance to try one if your MFJ is dead.

Jack BMW Motorcycles
Chuck KE9UW
c-hawley at illinois.edu

Sent from my iPad

> On Aug 22, 2019, at 7:10 PM, Wayne Burdick <n6kr at elecraft.com> wrote:
> 
> I already did what they said they would do: open it up and look for any
> parts that had come loose and resolder them. They don't build it and can't
> do much in the way of troubleshooting. It's also out of warranty.l
> 
> Wayne
> 
> 
>> On Thu, Aug 22, 2019 at 5:01 PM Gary K9GS <garyk9gs at wi.rr.com> wrote:
>> 
>> I have one of these and I'd be interested in what you find out. Did you
>> transmit into it by mistake?I'm pretty sure MFJ doesn't manufacture these
>> but I would contact their customer service and see what they say.73,Gary
>> K9GS
>> -------- Original message --------From: Wayne Burdick <n6kr at elecraft.com>
>> Date: 8/22/19  6:11 PM  (GMT-06:00) To: Elecraft Reflector <
>> elecraft at mailman.qth.net> Subject: [Elecraft] OT: Looking for schematic
>> and troubleshooting info on
>>        MFJ-223 VNA My MFJ-223 VNA took a dive (cause unknown). The SWR
>> readings are very high regardless of load. Has anyone found a schematic for
>> this thing? The manual also mentions an MCU reset switch, but I'm guessing
>> that's outdated. No such
>> switch.tnxWayneN6KR______________________________________________________________Elecraft
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