I would like to thank everyone who has contributed to the TKR-820 issues! The 820 seems to be one repeater that there isnt a lot of publicized info free for the asking, we all had to dig real hard, but thanks again to all who answered the bell!
Just for the record my serial # is 6035008 which leads me to believe that I have the mod already build in to my 820 and need to do nothing to the board as far as jumpers are concerned. Frank --- In [email protected], "Paul Finch" <[EMAIL PROTECTED]> wrote: > > Hello, > > Brings up a question, has anyone been able to find one of those connectors > that the normal repeater controller has on it that plugs into the logic > board? I want to use one of my Ham style controllers on the repeater and > would rather have it inside the unit than out. > > Paul > > > > _____ > > From: [email protected] > [mailto:[EMAIL PROTECTED] On Behalf Of Ken Arck > Sent: Thursday, May 01, 2008 11:21 AM > To: [email protected] > Subject: Re: [Repeater-Builder] Re: TKR820 (tkr-720) COR Logic (pin13) > information wanted. > > > Skipp and others > > The problem he is facing is really quite simple. > > According to the service manual for the TKR-820, the so-called "CO" output > on the 15 pin Molex style Accessory connector provides an open collector > output LOW when carrier is active UNLESS the repeater is programmed for tone > decode in which case the CO output is "tone squelch" based (I'm not sure if > that means decode only output or it is AND's with COR). In any case, that's > what the service manual says. > > I spent a bit of time on the phone with Kenwood tech support about this the > other day and they seemed somewhat "stumped" that it worked this way. > > He sent me a couple excerpts from the service manual, including this one > (which may be the most important piece of info from them so far - this is > from Service Bulletin T-89-88-LM) > > I've posted it on our website (with Kenwood's permission). This may be what > Frank is looking for. > > HYPERLINK > "http://www.arcomcontrollers.com/rc210/t-89- 88.pdf"http://www.arcomcontrolle > rs.com/rc210/t-89-88.pdf > > Hope this helps > > Ken > > > At 09:07 AM 5/1/2008, skipp025 wrote: > > > > Re: TKR820 (tkr-720) COR Logic (pin13) information wanted. > > Wow, this post has some history... y yo necesito mas practicar > en espanol Que Lastima! Read on. > > The Kenwood TKR-720 and TKR-820 repeaters have a cor output > logic line with non-standard voltage values. The cor changes > dc level with cos however, the dc values are not standard in > the form of active high being some voltage and active low > going to dc ground (or the converse). > > I designed and build a simple dc level detector circuit I > now use for all my repeater cor/cos and squelch detection > circuits. I've got the design down to one very fast adjustment > and it otherwise doesn't care what the input voltage values > are or where they transition to output a standard form-C type > relay or simple FET/bipolar transistor output. > > It's a viable enough design that I'm having a fair number of > pc-boards made to be offered cheap to anyone who might want one > in kit or pre-built form. The time line for the project is at > least after Dayton and maybe into June. > > But if you'd like to make your own you can contact me direct > and I'll try to help you with the proper information. > > cheers, > skipp > > skipp025 at yahoo.com > HYPERLINK "http://www.radiowrench.com/"www.radiowrench.com > > > "Private" <baldwin88@> wrote: > > > > Ive been searching for that for abt a month now...Im running a 820 > > with the Arcom Rc210 controller but, and I think u know what im going > > to say, lol....Wont keyup without COR...let me know if u fand > > anything out and Ill share with you. > > > > Frank > > > > --- In HYPERLINK > "mailto:Repeater-Builder%40yahoogroups.com"Repeater- [EMAIL PROTECTED], > XE2SI <xe2si@> wrote: > > > > > > Hello Skipp, I am here in Tijuana, just across the border with San > > Ysidro, Ca. > > > Good it works for you. 73..... > > > Juan > > > ----- Original Message ----- > > > From: skipp025 > > > To: HYPERLINK > "mailto:Repeater-Builder%40yahoogroups.com"Repeater- [EMAIL PROTECTED] > > > Sent: Tuesday, January 11, 2005 8:31 AM > > > Subject: [Repeater-Builder] Re: TKR820 (tkr-720) CORlogic(pin13) > > informationwanted. > > > > > > > > > > > > > > > Just what the doctor ordered. Thanks Juan. > > > > > > Su respuesta trabajada muy bien. �Qu� estado > > > usted vivo adentro? Tengo familia en GTO, MX > > > Gracias otra vez mucho. > > > skipp > > > > > > > XE2SI <[EMAIL PROTECTED]> wrote: > > > > Looks that you have an old repeater, the new ones > > > > have that pin called TOR wich is what you want, > > > > if this is the case there is a small square island in the > > > > controller board near the IC11 ( pin 9 ), this > > > > change state when there is a valid "PL" received, > > > > maybe you will need a buffer for what you need. > > > > hope this helps. > > > > Juan > > > > ----- Original Message ----- > > > > From: skipp025 > > > > To: HYPERLINK > "mailto:Repeater-Builder%40yahoogroups.com"Repeater- [EMAIL PROTECTED] > > > > Sent: Monday, January 10, 2005 6:27 PM > > > > Subject: [Repeater-Builder] TKR820 (tkr-720) COR logic (pin > > > > 13)informationwanted. > > > > > > > > Hello there, > > > > > > > > Anyone have information to configure the COR output > > > > logic on the Kenwood TKR820 Repeater to ctcss only? > > > > I'd like to make pin 13 (COR) of the accessory > > > > connector change states with a valid received ctcss > > > > tone. > > > > > > > > As received, accessory pin 13 (COR) changes state > > > > with carrier squelch activity. This tidbit of knowledge > > > > seems to be a rather elusive animal. Maybe one of you > > > > has done this already? > > > > > > > > Thanks in advance for your reply. > > > > > > > > cheers, > > > > > > > > skipp > > > > skipp025 at yahoo.com > > > > > > > > > > > > > > > > > > > > > > > > > > > Yahoo! Groups Links > > > > > > > > > > > -------------------------------------------------------------------- -------- > -- > President and CTO - Arcom Communications > Makers of repeater controllers and accessories. > HYPERLINK "http://www.arcomcontrollers.com/"http://www.arcomcontroller s.com/ > Authorized Dealers for Kenwood and Telewave and > we offer complete repeater packages! > AH6LE/R - IRLP Node 3000 > HYPERLINK "http://www.irlp.net/"http://www.irlp.net > "We don't just make 'em. We use 'em!" > > > No virus found in this incoming message. > Checked by AVG. > Version: 7.5.524 / Virus Database: 269.23.7/1408 - Release Date: 4/30/2008 > 6:10 PM > > > > No virus found in this outgoing message. > Checked by AVG. > Version: 7.5.524 / Virus Database: 269.23.7/1408 - Release Date: 4/30/2008 > 6:10 PM >
