[Elecraft] K3 KIO3 U1

Hello K3 owners. I need to replace U1 on the KIO3 board. In my K3 sn: 218x the part nr is: SN75C1406 G4. Is there any other SN75C1406 can be replaced with the ''old one''. Thanks in advance :-) 73 Viggo LA9NEA __ Elecraft

Re: [Elecraft] [K3] KIO3 failure mode

it with tinfoil* would help... cln - Nick WB5BKL Lake Buchanan, TX *  One of my neighbors has a plentiful supply. On 8/24/22 11:49, elecraft-requ...@mailman.qth.net wrote: Message: 9 Date: Tue, 23 Aug 2022 14:47:24 -0700 From: David Gilbert To: Subject: Re: [Elecraft] [K3] KIO3 failure mode When my KIO3

Re: [Elecraft] [K3] KIO3 failure mode

TX * One of my neighbors has a plentiful supply. On 8/24/22 11:49, elecraft-requ...@mailman.qth.net wrote: Message: 9 Date: Tue, 23 Aug 2022 14:47:24 -0700 From: David Gilbert To: Subject: Re: [Elecraft] [K3] KIO3 failure mode When my KIO3 got zapped, I had everything disconnected.? Antenna

Re: [Elecraft] [K3] KIO3 failure mode

> > cln - Nick > WB5BKL > Lake Buchanan, TX > > * One of my neighbors has a plentiful supply. > > > > On 8/24/22 11:49, elecraft-requ...@mailman.qth.net wrote: >> Message: 9 >> Date: Tue, 23 Aug 2022 14:47:24 -0700 >> From: David Gilbert >> To

Re: [Elecraft] [K3] KIO3 failure mode

/22 11:49, elecraft-requ...@mailman.qth.net wrote: Message: 9 Date: Tue, 23 Aug 2022 14:47:24 -0700 From: David Gilbert To: Subject: Re: [Elecraft] [K3] KIO3 failure mode When my KIO3 got zapped, I had everything disconnected.? Antenna and all accessories from the K3 ... power supply as well

Re: [Elecraft] [K3] KIO3 failure mode

Yep, series mode protectors. Got a few of them. But when tstms threaten, *everything* gets disconnected from the K3/K4, including headphones, key and speakers. 73, Drew AF2Z On 08/23/22 18:07, Jim Brown wrote: On 8/23/2022 2:47 PM, David Gilbert wrote: If I remember correctly, the laptop

Re: [Elecraft] [K3] KIO3 failure mode

On 8/23/2022 2:47 PM, David Gilbert wrote: If I remember correctly, the laptop power supply was even plugged into a quality surge protected UPS. MOV Surge protectors short the phase and neutral conductors to the green wire in the event of a surge. In the event of a strike, the IR drop in the

Re: [Elecraft] [K3] KIO3 failure mode

On 8/23/2022 2:15 PM, David Gilbert wrote: That little board seems to have by far the poorest reliability history of anything in the K3. I can think of two reasons. First, cable shields are not bonded to the chassis at the point of entry; instead, they are capacity-coupled, and I suspect

Re: [Elecraft] [K3] KIO3 failure mode

, 2022 5:47 pm Subject: Re: [Elecraft] [K3] KIO3 failure mode When my KIO3 got zapped, I had everything disconnected.  Antenna and all accessories from the K3 ... power supply as well.  The one thing I didn't have disconnected was the RS-232 link between the laptop and the KIO3.  Somehow

Re: [Elecraft] [K3] KIO3 failure mode

Even in Europe (east of the Rockies somewhat...). Got still 2 spares in the box for my three K3's. There's a reason. Udo DK5YA Am 23.08.2022 um 23:05 schrieb Al Lorona: Ah, lightning. Whoever performs an analysis of the KIO3 failure mode after being struck by lightning might have what's

Re: [Elecraft] [K3] KIO3 failure mode

)  from the shack hardware makes little boards like the K103 enjoy a longer life.  Just suggesting.  No disrespect in this comment. 73 Chuck W4MIL -Original Message- From: David Gilbert To: elecraft@mailman.qth.net Sent: Tue, Aug 23, 2022 5:15 pm Subject: Re: [Elecraft] [K3] KIO3 failure

Re: [Elecraft] [K3] KIO3 failure mode

-Original Message- From: David Gilbert To: elecraft@mailman.qth.net Sent: Tue, Aug 23, 2022 5:15 pm Subject: Re: [Elecraft] [K3] KIO3 failure mode Yes, for sure.  That little board seems to have by far the poorest reliability history of anything in the K3. Dave   AB7E On 8/23/2022 2:05 PM, Al

Re: [Elecraft] [K3] KIO3 failure mode

Yes, for sure.  That little board seems to have by far the poorest reliability history of anything in the K3. Dave   AB7E On 8/23/2022 2:05 PM, Al Lorona wrote: Ah, lightning. Whoever performs an analysis of the KIO3 failure mode after being struck by lightning might have what's

[Elecraft] [K3] KIO3 failure mode

Ah, lightning. Whoever performs an analysis of the KIO3 failure mode after being struck by lightning might have what's necessary for a very lucrative business.  Actually, I'm surprised that the board hasn't already been reverse engineered in China, enabling an aftermarket for KIO3 replacements.

Re: [Elecraft] K3: KIO3 digital board failed (I think)

Had the same thing a few years ago. I plugged the PP into the K3 only it was offset a bit. Nanacged to get the cable Red on the K3 Black. Smelled smoke (P3 cable insulation) and blew L1 on the RS232 circuit. Sent from my iPhone ...nr4c. bill > On Sep 18, 2020, at 8:31 PM, Edward R Cole

Re: [Elecraft] K3: KIO3 digital board failed (I think)

Working with Rob at Elecraft Service, I removed and checked the KIO3 Digital I/F board and found L1 blown. L2, L3, R12, and R13 are all good. L1 is on the ground lead from the sub-D9 connector, pin 5 to ground in the K3. Definitely blown as there is a carbon smudge next to L1. I installed

Re: [Elecraft] K3: KIO3 dgital board failed (I think)

I had exactly that same problem, Ed, and I also first thought it was the USB/RS232 cable (which it wasn't).  I also do not need the direct USB connectivity, or the associated internal sound card. Luckily, I was able to buy replacement boards from someone who had done the upgrade to the KIO3B

Re: [Elecraft] K3: KIO3 dgital board failed (I think)

Oh yes. And the only way out is to upgrade the whole system. Or look for used items here. Sent from my iPhone ...nr4c. bill > On Sep 14, 2020, at 4:48 PM, Edward R Cole wrote: > > My K3 SN 4340 bought in 2010 apparently has a failure in the RS232 I/F. > > My computer says the FDTI cable

[Elecraft] K3: KIO3 dgital board failed (I think)

My K3 SN 4340 bought in 2010 apparently has a failure in the RS232 I/F. My computer says the FDTI cable is working and using com port-6 but there is no connection using the K3 Utility or WSJT-X which was running fine in July. The radio no longer keys up on computer boot-up as before. I

Re: [Elecraft] K3 KIO3 Problem with WSJT-X?

It seems at least possible that the polyphonic audio bleat is being produced by feedback somehow occurring between LIN IN and LIN OUT on the KIO3. Two possibilities - either the sound card has failed in this peculiar way, or there is some setting, either in my WIN 10 computer's sound settings

[Elecraft] K3 KIO3 Problem with WSJT-X?

I am trying to diagnose a problem with my K3/KIO3 which surfaced during the ARRL VHF contest.  Previously, I had used this setup for hundreds of QSOs on HF. I am using an external Startec USB soundcard.  The KIO3 IN jack is cabled to the speaker output of the soundcard.  The KIO3 OUT jack is

Re: [Elecraft] K3 KIO3 board needed

@mailman.qth.net Subject: [Elecraft] K3 KIO3 board needed Does anyone happen to have the K3 model KIO3 circuit card that is excess to their needs? If you have upgraded to the new K3S KIO3B you may have one. It seems that the RS232 control on one of my K3 XCVRs has bit the dust. I checked with Elecraft

[Elecraft] K3 KIO3 board needed

Does anyone happen to have the K3 model KIO3 circuit card that is excess to their needs? If you have upgraded to the new K3S KIO3B you may have one. It seems that the RS232 control on one of my K3 XCVRs has bit the dust. I checked with Elecraft and they no longer have any of the old style.

Re: [Elecraft] K3 KIO3 Board

I upgraded to the new board recently. The swap was easy, and works great. 73, W4KX Sent from my iPad > On Jun 2, 2018, at 8:24 AM, Peter B wrote: > > Hi Jorge, > I upgrade my K3 next week with the new board. > I let you know when Iam finished. > See what i will do with the old board. > >

Re: [Elecraft] K3 KIO3 Board

Hi Jorge, I upgrade my K3 next week with the new board. I let you know when Iam finished. See what i will do with the old board. 73s, Peter/PD1RP Op do 24 mei 2018 om 23:51 schreef Jorge Mejia P > Anyone with a KIO3 board for a K3 , maybe left from having upgraded to the > newer boards. > I

[Elecraft] K3 KIO3 Board

Anyone with a KIO3 board for a K3 , maybe left from having upgraded to the newer boards. I would be interested. Thank you Jorge HK4CZE Sent from my iPad __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft

[Elecraft] K3 KIO3 board

I have problems with my KIO3 main board. I wonder if there is someone who have upgraded to KIO3B and have KIO3 board collecting dust. If so I want to buy it. Please send an e-mail with your price. Hans SM6BGA __ Elecraft mailing list

Re: [Elecraft] [K3] KIO3 wanted

Hi John, I have a complete set of KIO3A boards available that I am willing to sell to you at a bargain price. I am not sure what the the original price was, but the the new KIO3B set is well over $300. I have not been able to find your E-mail address so I am responding here. My E-mail address is

[Elecraft] [K3] KIO3 wanted

I am looking for a set of KIO3 boards (no longer available from Elecraft since the introduction of the KIO3B) to replace a board in one of my K3s with a damaged component. Please email me if you have a set you would be willing part with, and include the serial number of the K3 they came from

[Elecraft] K3 - KIO3 and USB to serial problems

Hi all, I'm trying to get set up for Field Day, and as usual I'm bringing my K3. Last time I had it set up on my laptop using a USB to serial adapter and it worked fine. Since then, I've had it plugged into my shack PC using a hardware serial port, where it has been working just fine. This time

Re: [Elecraft] K3 KIO3

I have one spare as well. But I have to say I'm having great fun with my KIO3B. I even bought a $349 HP laptop and installed Ubuntu to run WSJT-X and fldigi. It's pretty fun. On Mon, 18 Jan 2016, James F. Boehner MD via Elecraft wrote: Can anyone let us know what the KIO3's are selling for?

Re: [Elecraft] K3 KIO3

Dr. Jim, I really don't know the answer to your question, but I suspect a fair value would be between 1/2 and 2/3 of the original price for the KIO3 option. I do not recall what that price was, but perhaps someone with an older price sheet will chime in. BTW, that estimate is my general

[Elecraft] K3 KIO3

Can anyone let us know what the KIO3's are selling for? '73 de JIM N2ZZ -Original Message- From: Elecraft [mailto:elecraft-boun...@mailman.qth.net] On Behalf Of Lewis Phelps Sent: Monday, January 18, 2016 4:07 PM To: Elecraft Reflector Subject: Re: [Elecraft] F/S K3 KIO3 Folks, my need

[Elecraft] K3 KIO3

- Back in 2010, I had a lightning strike that damaged - my KIO3 board. For what it's worth, here are the - (quite reasonable) charges Elecraft made tor: - KIO3 Digital Board $30.44 - KIO3A Main PCB Assm$106.16 Jim - W4RKS -- >Dr. Jim, >I really

Re: [Elecraft] K3 KIO3

2015 5:59 AM To: Mike Reublin NF4L Cc: Elecraft List Subject: Re: [Elecraft] K3 KIO3 The P3 translates the speed of the K3. Both K3 & P3 should be set to the same baudrate for performance reason. P-T LA7NO On 24 November 2015 at 13:54, Mike Reublin NF4L <n...@comcast.net> wrote: &

Re: [Elecraft] K3 KIO3

Not the issue. The post was meant for support, not the list. Mea culpa! 73, Mike NF4L > On Nov 24, 2015, at 7:59 AM, Per-Tore Aasestrand wrote: > > The P3 translates the speed of the K3. > Both K3 & P3 should be set to the same baudrate for performance reason. > > P-T > LA7NO

[Elecraft] K3 KIO3

I'm writing a Windows program for the K3. It connects at 38400 only. In trying to figure out what's wrong, I set my P3 and K3 to 9600 and used the K3 Utility. It will not connect. If I set the K3 to 38400 and leave the P3 at 9600, the utility connects, but reports it's connected at 9600.

Re: [Elecraft] K3 KIO3

The P3 translates the speed of the K3. Both K3 & P3 should be set to the same baudrate for performance reason. P-T LA7NO On 24 November 2015 at 13:54, Mike Reublin NF4L wrote: > I'm writing a Windows program for the K3. It connects at 38400 only. In > trying to figure out

Re: [Elecraft] K3 KIO3

; Sent: Tuesday, November 24, 2015 5:59 AM > To: Mike Reublin NF4L > Cc: Elecraft List > Subject: Re: [Elecraft] K3 KIO3 > > The P3 translates the speed of the K3. > Both K3 & P3 should be set to the same baudrate for performance reason. > > P-T > LA7NO > >

[Elecraft] [K3] KIO3 serial port replacement or repair?

Elecrafters, i believe i zapped KIO3. 2 Symptoms: I can't use the DTR and RTS lines for cw keying via my logging software. ACC will not switch on the external Transverter. Any idea how to repair the board? On the Elecraft K3 parts and Mods kits page i see REMIOUPGD, is this the device i need

Re: [Elecraft] [K3] KIO3 serial port replacement or repair?

DM4iM wrote: i believe i zapped KIO3. 2 Symptoms: I can't use the DTR and RTS lines for cw keying via my logging software. ACC will not switch on the external Transverter. Any idea how to repair the board? On the Elecraft K3 parts and Mods kits page i see REMIOUPGD, is this the

[Elecraft] [K3] KIO3 serial port replacement or repair?

﹕ elecraft@mailman.qth.net 傳送日期﹕ 2011/4/14 (四) 8:33:13 PM 主題： Re: [Elecraft] [K3] KIO3 serial port replacement or repair? DM4iM wrote: i believe i zapped KIO3. 2 Symptoms: I can't use the DTR and RTS lines for cw keying via my logging software. ACC will not switch on the external Transverter

Re: [Elecraft] [K3] KIO3 serial port replacement or repair?

Boy, this will be a good thing! I blew mine three weeks into the life of #4725, and a replacement cost me north of $100, so a more rugged design will be welcome. My radio is at Elecraft right now, and if there is any sort of swap-out deal for radios still under warranty, I'd very much like

Re: [Elecraft] [K3] KIO3 serial port replacement or repair?

Is this a lightning protection issue or what? What is the source of the zappies? On Thu, Apr 14, 2011 at 12:05 PM, Pete Smith n...@contesting.com wrote: Boy, this will be a good thing!  I blew mine three weeks into the life of #4725, and a replacement cost me north of $100, so a more rugged

Re: [Elecraft] [K3] KIO3 Pinout

btw, does anybody know the answer to my initial question: what about Pin 7 on the K3IO serial connector? Is it used or unused? It is not mentioned in my manual, neither in the unused pins (1, 8, 9) nor in the list of used pins. 73! de Werner OE9FWV -- View this message in context:

Re: [Elecraft] [K3] KIO3 Pinout

- From: elecraft-boun...@mailman.qth.net [mailto:elecraft-boun...@mailman.qth.net] On Behalf Of oe9fwv Sent: Tuesday, October 20, 2009 9:13 AM To: elecraft@mailman.qth.net Subject: Re: [Elecraft] [K3] KIO3 Pinout btw, does anybody know the answer to my initial question: what about Pin 7

Re: [Elecraft] [K3] KIO3 Pinout

hi Dick and all who responded, Dick Dievendorff schrieb am 20 Oct 2009 um 9:26: The schematic diagram (on the Elecraft web site) shows the KIO3's serial connector pin 7 is RTS_IN. According to the schematic, pin 2 is RxD out, pin 3 is TxD in, pin 4 is DTR in, pin 5 is common (connected