[Elecraft] Thanks! was :K3: R-MH2 mic problems
Thanks to Ken and Don - mic is working great - appreciate the extremely rapid replies guys! (a case of missing something in the manual) 73 John VE3NFK PS - what about the second 'weird behaviour'? VE3NFK wrote: Hi I have sn 709 - I have my Heil HC4 from my TS-2000 8 pin conn - when I plug it into the K3 - I hear noise from the MICROPHONE??? The 'manual' says: to select front or rear panel microphone AND to turn BIAS on/off, use the MAIN:Mic SRC menu entry.. My firmware 1.78 only shows: MIC SEL FP.H b1 A5 and I have not figured out how to adjust it - the main VFO knob also gives me a choice of rP.H and LInE In .. On a separate note - I have this anomaly that I emailed support on Friday night: Managed to 'lock-up' my K3 - NO buttons work - including power - had to pull the power plug going thru the config menu - at PTT-KEY both ' OFF-OFF' tried to change values and complete lockup Completely repeatable - go to config PTT then move main vfo control and lock up. Was on AM 13840 listening to a SW station/ Changed mode/freq - still does it - as soon as main VFO adjusted. Any advice/help comments? tnxs John VE3NFK Gary Hembree wrote: This is a known problem with the Rev B front panel artwork. I had the exact same problem with a MH2 mike when I first used my K3/100 SN 729 a week ago on 6 meters to contact a local friend who is a well-known VHF and HF DXer and contester. Unfortunately it did not make a good impression! There is a ground trace missing from one end of C98 and C97 on the front panel board. These capacitors are associated with the mike bias circuit. Hence the problem with the MH2. I am told that an official Elecraft fix is going to be released this coming week. Several of us who noticed this problem were given the fix to try and it worked three out of three times. If you must use a mike that needs bias then use the rear panel connector for now (i.e. Elecraft or Icom Proset). MH2s are excluded of course, unless you have an appropriate adapter. 688 is the earliest SN that we know is affected. The other three were 690, 728 and 729. Elecraft is fixing front panel boards now before they ship anymore. 73 Gary, N7IR ___ 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 -- View this message in context: http://www.nabble.com/K3%3A-R-MH2-mic-problems-tp16917192p16927436.html Sent from the Elecraft mailing list archive at Nabble.com. ___ 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] Thanks! was :K3: R-MH2 mic problems
Hi again, John: I can't figure out what you are doing. I go to CONFIG:PTT-KEY entry; rotate VFO A clockwise and one of five selections can be made... rts-OFF; dtr-OFF; OFF-dts; OFF-dtr; and rts-dtr. Your selection will determine what, if anything, will happen when you assert the rts and/or the dtr on the RS232 port. Do you have a connector attached to the RS232 port on the back? If so, disconnect it and see if you can cause the fault.(Manual, pg 52). 73, Ken K3IU VE3NFK wrote: PS - what about the second 'weird behaviour'? VE3NFK wrote: On a separate note - I have this anomaly that I emailed support on Friday night: Managed to 'lock-up' my K3 - NO buttons work - including power - had to pull the power plug going thru the config menu - at PTT-KEY both ' OFF-OFF' tried to change values and complete lockup Completely repeatable - go to config PTT then move main vfo control and lock up. Was on AM 13840 listening to a SW station/ Changed mode/freq - still does it - as soon as main VFO adjusted. Any advice/help comments? tnxs John VE3NFK Gary Hembree wrote: This is a known problem with the Rev B front panel artwork. I had the exact same problem with a MH2 mike when I first used my K3/100 SN 729 a week ago on 6 meters to contact a local friend who is a well-known VHF and HF DXer and contester. Unfortunately it did not make a good impression! There is a ground trace missing from one end of C98 and C97 on the front panel board. These capacitors are associated with the mike bias circuit. Hence the problem with the MH2. I am told that an official Elecraft fix is going to be released this coming week. Several of us who noticed this problem were given the fix to try and it worked three out of three times. If you must use a mike that needs bias then use the rear panel connector for now (i.e. Elecraft or Icom Proset). MH2s are excluded of course, unless you have an appropriate adapter. 688 is the earliest SN that we know is affected. The other three were 690, 728 and 729. Elecraft is fixing front panel boards now before they ship anymore. 73 Gary, N7IR ___ 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 ___ 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
