[Elecraft] K3 Problem: ERR 12V and failure(?) of KPA3

[Bill W5WVO]

Dick,

I experienced this same problem exactly on my SN 888, complete with 
intermittency of the symptom. After some consultation with Elecraft tech 
support, they sent me a KPAIO3 board -- the board that the KPA3 connects through 
and that contains the 12VDC sensor circuitry. Unfortunately, I haven't been able 
to get to installing it as yet. It's on the list for when I return from holiday 
vacation out of town. My bet is that this will cure the problem. I'll let the 
list (and Elecraft tech support) know when I swap it out and try it. Should be 
first week of January, possibly end of December.

Bill W5WVO


Dick Dievendorff wrote:
> I believe the OM; query returns the result of the configuration menu
> settings. The KPA3 menu setting should be "PA NOR".
>
> Dick, K6KR
>
>
> -----Original Message-----
> From: elecraft-bounces at mailman.qth.net
> [mailto:elecraft-bounces at mailman.qth.net] On Behalf Of Thomas Norff
> Sent: Wednesday, December 23, 2009 5:20 PM
> To: 'jmalloy'
> Cc: elecraft at mailman.qth.net
> Subject: Re: [Elecraft] K3 Problem: ERR 12V and failure(?) of KPA3
>
> Joe,
>
> have you checked the 'internal information '  ?
>
> -------------------------------------------------
> use:
>
> OM * (Option Module Query; GET Only)
> RSP format: OM APXSDFf-----; where any of the letters APXSDFf, if
> present, indicate installed and detected
> option modules (see list below). The positions of the letters are
> fixed. If a module is not present, its letter is
> replaced by a dash (-). For example, if only a PA and sub receiver
> were installed, "OM;" would return "OM -P-S--
> ------;". The five dashes at the end are reserved for future module
> letters. Option List: The letters (and associated positions) in the
> OM string refer to the following option modules:
> A = ATU (KAT3), P = PA (KPA3), X = XVTR and RX I/O (KXV3), S = Sub
> Receiver (KRX3), D = DVR
> (KDVR3), F = Band-Pass Filter module, main (KBPF3), and f = Band-Pass
> Filter module, sub (KBPF3).
> --------------------------------------------------
>
> During initialisation all installed modules are detected ...
> independent what you have configured
> If your module is dead i would expect this to be reflected in the OM
> output.
>
> vy 73
> Thomas, DM7TN
> K3/100 #78
>
> -----Original Message-----
> From: elecraft-bounces at mailman.qth.net
> [mailto:elecraft-bounces at mailman.qth.net] On Behalf Of jmalloy
> Sent: Thursday, December 24, 2009 1:38 AM
> To: elecraft at mailman.qth.net
> Subject: [Elecraft] K3 Problem: ERR 12V and failure(?) of KPA3
>
> In the past few days, I've noticed the KPA3 in my K3 serial number
> #584 acting "flaky".  Well, today it apparently failed -- or maybe
> I'm missing something (?).  No matter what I do, the rig is limited
> to 12 W (or so it says); I've switched the KPA3 on and off numerous
> times in software, I've removed and reinserted the KPA3, I've checked
> the circuit breaker with a VOM out of circuit, I've tried another
> power supply, and so on.  No joy.  Before I contact Elecraft I'd like
> to hear the collective wisdom of the group -- what else can I try to
> get things working.
>
> Tnx and MC!
>
> 73,
>
> Joe, W2RBA
>
>
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