http://groups.yahoo.com/group/TS-520_820_530_830/ KENWOOD TS-520_820_530_830 Thu, 07 Jan 2010 02:07:41 GMT Daniel http://groups.yahoo.com/group/TS-520_820_530_830/message/24355 http://groups.yahoo.com/group/TS-520_820_530_830/message/24355 Got it tnx Mike. Any idea what accuracy counter I would need to do this correctly? Wed, 06 Jan 2010 22:59:31 GMT w5rkl http://groups.yahoo.com/group/TS-520_820_530_830/message/24354 http://groups.yahoo.com/group/TS-520_820_530_830/message/24354 Joel, You also might try cleaning all of the plugs on the various boards. The plugs in all of the hybrids have a tendency to become dirty and the plugs Wed, 06 Jan 2010 20:11:50 GMT j_52_cooper http://groups.yahoo.com/group/TS-520_820_530_830/message/24353 http://groups.yahoo.com/group/TS-520_820_530_830/message/24353 Thanks Mike, I'll give it a go! Joel Wed, 06 Jan 2010 18:37:46 GMT w5rkl http://groups.yahoo.com/group/TS-520_820_530_830/message/24352 http://groups.yahoo.com/group/TS-520_820_530_830/message/24352 The VFO power is provided by the 9VDC supply on the AF UNIT. The actual VFO's power source comes from the AF UNIT plug 5 pin 7. The 9VDC is routed from AF UNIT Wed, 06 Jan 2010 17:44:05 GMT j_52_cooper http://groups.yahoo.com/group/TS-520_820_530_830/message/24351 http://groups.yahoo.com/group/TS-520_820_530_830/message/24351 Mike, The external vfo is a 240. I just unplugged it and tried it with the main vfo and in less than 1 minute the frequency still jumped approx as much as .8 Wed, 06 Jan 2010 17:20:18 GMT w5rkl http://groups.yahoo.com/group/TS-520_820_530_830/message/24350 http://groups.yahoo.com/group/TS-520_820_530_830/message/24350 Joel, You didn't say which VFO you are using, VFO-230 or VFO-240. Either one with work with the 830. You also didn't say if the problem occurs when the remote Wed, 06 Jan 2010 17:10:19 GMT w5rkl http://groups.yahoo.com/group/TS-520_820_530_830/message/24349 http://groups.yahoo.com/group/TS-520_820_530_830/message/24349 Chris, I had a problem with keying my 820. I use an MFJ-407D keyer and at times the keyer would simply not key the 820. The problem wasn't the keyer but rather Wed, 06 Jan 2010 16:38:24 GMT j_52_cooper http://groups.yahoo.com/group/TS-520_820_530_830/message/24348 http://groups.yahoo.com/group/TS-520_820_530_830/message/24348 I have an occasional problem with the frequency jumping and even triggering the relays. This occurs whether I use the onboard vfo or the auxillary vfo. Once in Wed, 06 Jan 2010 04:13:28 GMT chris_yipyap_com http://groups.yahoo.com/group/TS-520_820_530_830/message/24347 http://groups.yahoo.com/group/TS-520_820_530_830/message/24347 Thanks for the replies to my query. It turns out I owe my 820 something of an apology. The main culprit in what I have been seeing is my _keyer_! The goofy Wed, 06 Jan 2010 00:57:09 GMT Frank VK5KV http://groups.yahoo.com/group/TS-520_820_530_830/message/24346 http://groups.yahoo.com/group/TS-520_820_530_830/message/24346 Andrea, Do you have a manual for the SM220?? if not follow this link... http://www.coutant.org/sm220/sm220man.pdf The Band scope option is basically a Pan Tue, 05 Jan 2010 19:24:13 GMT Lou Blasco http://groups.yahoo.com/group/TS-520_820_530_830/message/24345 http://groups.yahoo.com/group/TS-520_820_530_830/message/24345 Hi Chris, You've described the symptoms of a soft driver tube. Your testing with the 'scope will confirm it. Lou VK3ALB Tue, 05 Jan 2010 19:08:47 GMT Les Zwiebel WB6ORZ http://groups.yahoo.com/group/TS-520_820_530_830/message/24344 http://groups.yahoo.com/group/TS-520_820_530_830/message/24344 Thanks, Pete. If anybody knows the documentation scene, it would be you. You're probably right, regarding a numbers project "not (being) for the faint of Tue, 05 Jan 2010 18:40:48 GMT Charlie , W5COV http://groups.yahoo.com/group/TS-520_820_530_830/message/24343 http://groups.yahoo.com/group/TS-520_820_530_830/message/24343 My serial number is 3110217 and was purchased 05/12/83 Henry Radio , Butler , MO. Charlie , W5COV [Non-text portions of this message have been removed] Tue, 05 Jan 2010 18:29:24 GMT Les Zwiebel WB6ORZ http://groups.yahoo.com/group/TS-520_820_530_830/message/24342 http://groups.yahoo.com/group/TS-520_820_530_830/message/24342 Thanks, Bob and Pete! This is a useful rundown to begin sorting out the Mods and Serial Numbers. Anybody know how to decipher the date of mfr from the s/n? I Tue, 05 Jan 2010 17:53:10 GMT pmarkavage http://groups.yahoo.com/group/TS-520_820_530_830/message/24341 http://groups.yahoo.com/group/TS-520_820_530_830/message/24341 And, since many TS-830's have changed hands over the years, there's no telling what factory approved mods/improvements were done by the previous owner(s) other