RE: [Elecraft] K2# 1068 stuck in transmit mode - SOLVED! KIO2 still a problem
John, Thanks for the suggestions. I can now report back to the list what I have found. Gary Surrency and Don Wilhelm have been helping me on the side and here is what the problem is. LIGHTNIHG. Yep, I took a hit. I started pulling the various module boards one at a time until I found that pulling the SSB board made the K2 drop out of transmit. Then, reasoning that the most likely component on the SSB board to suffer lightning damage would be the PIC processor. So, I pulled the PIC and replaced it with a previous revision chip that I had left over after the last time I upgraded it. Viola! The K2 then worked fine except for the KIO2 is mute. It will taken control commands from me, but does not send polling data back out. Could be because I have a mismatch of processors now. Any notions for this specific KIO2 problem from anyone in the group would be quite welcome. Many thanks to Gary and Don and everyone who gave me feedback, it was all quite valuable. NOTE TO THE GOUP! NEVER throw away old revision processor chips when you make upgrades to your K2. Tuck them away safely in something antistatic and save them for a rainy day. You may have to depend on them one day! Best 73s, Bill Allen - WA5PB -Original Message- From: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED] On Behalf Of John Sent: Thursday, April 20, 2006 10:27 PM To: elecraft@mailman.qth.net Subject: RE: [Elecraft] K2# 1068 stuck in transmit mode Bill, Do you think it could be the key input jack itself? I've had trouble with the headphone jack on one of my K2's. I've had to replace it 3 times, not fun. I think the key jack is about the same thing and maybe prone to the same type problem. Just a thought. John, k7up ___ Elecraft mailing list Post to: Elecraft@mailman.qth.net You must be a subscriber to post to the list. Subscriber Info (Addr. Change, sub, unsub etc.): http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/subscribers.htm Elecraft web page: http://www.elecraft.com -- No virus found in this incoming message. Checked by AVG Free Edition. Version: 7.1.385 / Virus Database: 268.4.4/319 - Release Date: 4/19/2006 -- No virus found in this outgoing message. Checked by AVG Free Edition. Version: 7.1.385 / Virus Database: 268.4.4/320 - Release Date: 4/20/2006 ___ Elecraft mailing list Post to: Elecraft@mailman.qth.net You must be a subscriber to post to the list. Subscriber Info (Addr. Change, sub, unsub etc.): http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/subscribers.htm Elecraft web page: http://www.elecraft.com
RE: [Elecraft] K2# 1068 stuck in transmit mode - SOLVED! KIO2 still aproblem
John: If you have an old K2 main MCU try it and see if it fixes your KIO2 problem before you order parts. My K2 was subject to lightning (not as direct hit but in the neighbors yard) and the only symptom was that the KIO2 would not work. After determining the input port on the PC was shot (tried other serial device) thought it was fixed. Then spent many hours trouble shooting and replacing the KIO2. Once it was fixed I determined the pin the KIO2 interfaces with on the KIO2 was internally open - thus needed a new MCU. Three things broke, two in K2 and one in the PC. Strange that everything in the PC worked except the serial port. And everything in the AK2 worked except the KIO2. Rich ___ Elecraft mailing list Post to: Elecraft@mailman.qth.net You must be a subscriber to post to the list. Subscriber Info (Addr. Change, sub, unsub etc.): http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/subscribers.htm Elecraft web page: http://www.elecraft.com
RE: [Elecraft] K2# 1068 stuck in transmit mode
Wow. I am still puzled over this one. Everything under the hood looks good. Sometimes it is easy to get a visual on an obviously blown component, but I see absolutely nothing amiss. Even passes the sniff test! The problem exists even with no microphone or key plugged in. Any of you all K2 gurus have any notions on this? I did try a reset of the K2, but that did not make a difference other than giving me an Info 201 code and resetting my displayed frequency and mode to 7100.00c . Again any help or suggestions appreciated. Thanks Mike for the previous suggestion. 73, Bill Allen - WA5PB -Original Message- From: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED] On Behalf Of Bill Allen Sent: Thursday, April 20, 2006 8:32 PM To: elecraft@mailman.qth.net Subject: [Elecraft] K2# 1068 stuck in keydown! Importance: High Hey gang, I seem to have a K2 that is stuck in key down (i.e. xmit). When I turn the radio on all I get is the ELECrAFt message, that relays cycle normal, and then a frequency. No front panel controls work except the power knob and it is obvious that I am transmitting and the finals start heating up. What do I need to check or do Any and all help appreciated! Yes, I have turned it off... 73, Bill Allen - WA5PB -- No virus found in this outgoing message. Checked by AVG Free Edition. Version: 7.1.385 / Virus Database: 268.4.4/319 - Release Date: 4/19/2006 ___ Elecraft mailing list Post to: Elecraft@mailman.qth.net You must be a subscriber to post to the list. Subscriber Info (Addr. Change, sub, unsub etc.): http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/subscribers.htm Elecraft web page: http://www.elecraft.com -- No virus found in this incoming message. Checked by AVG Free Edition. Version: 7.1.385 / Virus Database: 268.4.4/319 - Release Date: 4/19/2006 -- No virus found in this outgoing message. Checked by AVG Free Edition. Version: 7.1.385 / Virus Database: 268.4.4/319 - Release Date: 4/19/2006 ___ Elecraft mailing list Post to: Elecraft@mailman.qth.net You must be a subscriber to post to the list. Subscriber Info (Addr. Change, sub, unsub etc.): http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/subscribers.htm Elecraft web page: http://www.elecraft.com
