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1. [TenTec] Orion 565 tuning encoder (score: 1): Author: Barry N1EU <barry.n1eu@gmail.com>; Date: Sat, 21 Jun 2014 14:07:53 +0000; Does anyone know the specs of the main VFO tuning encoder in the Orion or can recommend a source for a replacement? Thanks & 73, Barry N1EU _______________________________________________ TenTec mail; /archives//html/TenTec/2014-06/msg00174.html (7,267 bytes)
2. Re: [TenTec] Orion 565 tuning encoder (score: 1): Author: shristov <shristov@ptt.rs>; Date: Sat, 21 Jun 2014 16:41:29 +0200; It's OAK GRIGSBY part number 94Q 125-02-00606 73, Sinisa YT1NT, VE3EA _______________________________________________ TenTec mailing list TenTec@contesting.com http://lists.contesting.com/mailman/lis; /archives//html/TenTec/2014-06/msg00175.html (6,897 bytes)
3. Re: [TenTec] Orion 565 tuning encoder (score: 1): Author: Barry N1EU <barry.n1eu@gmail.com>; Date: Sat, 21 Jun 2014 15:36:17 +0000; Thanks Sinisa. vfoB would not tune at all. I removed the encoder and connected it to the cable going to the vfoA encoder and the encoder now is fully functional. There is a problem somewhere upstream; /archives//html/TenTec/2014-06/msg00176.html (8,071 bytes)
4. Re: [TenTec] Orion 565 tuning encoder (score: 1): Author: shristov <shristov@ptt.rs>; Date: Sat, 21 Jun 2014 19:23:13 +0200; I had the same problem. VFO B encoder had a supply voltage of only 4.66 V. After tightening 4 fixing screws on the A9 board, the voltage at encoder rose to 4.77 V and it started workig. 73, Sinisa __; /archives//html/TenTec/2014-06/msg00177.html (7,344 bytes)
5. Re: [TenTec] Orion 565 tuning encoder (score: 1): Author: Barry N1EU <barry.n1eu@gmail.com>; Date: Sat, 21 Jun 2014 18:34:40 +0000; I measure 4.63V on both tuning encoders. And both encoders work on the A cable, so it doesn't seem like that would explain it. But I'll poke around the A9 board. I replaced all the A9 capacitors a fe; /archives//html/TenTec/2014-06/msg00178.html (8,945 bytes)
6. Re: [TenTec] Orion 565 tuning encoder (score: 1): Author: Barry N1EU <barry.n1eu@gmail.com>; Date: Sat, 21 Jun 2014 18:41:25 +0000; I measure 4.9V on the A9 board. I flipped the rig over and now I'm measuring 4.3V on the encoders (?!). Not sure what's going on. vfoA encoder is still working fine. Barry N1EU ______________________; /archives//html/TenTec/2014-06/msg00179.html (9,091 bytes)
7. Re: [TenTec] Orion 565 tuning encoder (score: 1): Author: Barry N1EU <barry.n1eu@gmail.com>; Date: Sat, 21 Jun 2014 18:59:51 +0000; After hooking up a scope, I think the encoder is bad. I'm seeing negative going pulses on the A pin but not seeing positive going pulses on the B pin. Barry N1EU _____________________________________; /archives//html/TenTec/2014-06/msg00180.html (9,781 bytes)
8. Re: [TenTec] Orion 565 tuning encoder (score: 1): Author: shristov <shristov@ptt.rs>; Date: Sun, 22 Jun 2014 00:08:49 +0200; Could you power the VFO B encoder by external +5.0 V? 73, Sinisa _______________________________________________ TenTec mailing list TenTec@contesting.com http://lists.contesting.com/mailman/listinfo; /archives//html/TenTec/2014-06/msg00181.html (8,397 bytes)
9. Re: [TenTec] Orion 565 tuning encoder (score: 1): Author: "Bob McGraw - K4TAX" <RMcGraw@Blomand.net>; Date: Sat, 21 Jun 2014 17:41:08 -0500; Shouldn't the two outputs be 90 degrees quadrature? "A" leads "B" in one direction and "B leads "A" in the opposite? I seem to think so. I had to replace the MULTI encoder in my Eagle and I seem to r; /archives//html/TenTec/2014-06/msg00182.html (11,643 bytes)
10. Re: [TenTec] Orion 565 tuning encoder (score: 1): Author: Barry N1EU <barry.n1eu@gmail.com>; Date: Sat, 21 Jun 2014 23:37:21 +0000; Bob, did you open an Oak Grigsby encoder? It appears to be completely sealed. Barry N1EU _______________________________________________ TenTec mailing list TenTec@contesting.com http://lists.contest; /archives//html/TenTec/2014-06/msg00183.html (13,255 bytes)
11. Re: [TenTec] Orion 565 tuning encoder (score: 1): Author: Mike Schatzberg <cherokeehillfarm@earthlink.net>; Date: Sat, 21 Jun 2014 19:56:07 -0400; An old encoder repair technique is to spin the encoder at a medium speed using a reversible drill with a hand chuck. You need not disassemble anything other than remove the knob from the encoder shaf; /archives//html/TenTec/2014-06/msg00184.html (13,544 bytes)
12. Re: [TenTec] Orion 565 tuning encoder (score: 1): Author: Barry N1EU <barry.n1eu@gmail.com>; Date: Sun, 22 Jun 2014 00:08:33 +0000; There's 0.5-0.6V drop between the A9 board and the encoder on the front panel board. Isn't that excessive? Also, the voltage at the encoder seems to vary over time 4.3-4.5V. I wonder if there could b; /archives//html/TenTec/2014-06/msg00185.html (9,838 bytes)
13. Re: [TenTec] Orion 565 tuning encoder (score: 1): Author: K8JHR <jrichards@k8jhr.com>; Date: Sat, 21 Jun 2014 20:37:46 -0400; Did you take any photos of the encoder's innards? -- K8JHR -- I actually opened the original one, cleaned it, put it back together ______________________________________________ _____________________; /archives//html/TenTec/2014-06/msg00186.html (9,132 bytes)
14. Re: [TenTec] Orion 565 tuning encoder (score: 1): Author: "Bob McGraw - K4TAX" <RMcGraw@Blomand.net>; Date: Sat, 21 Jun 2014 20:49:24 -0500; Barry, I do not recall the brand. The one I opened and repaired is in a bag at the shop. As I think about it, most probably not the type and style used for the VFO encoders. They are likely a bit mor; /archives//html/TenTec/2014-06/msg00187.html (13,931 bytes)
15. Re: [TenTec] Orion 565 tuning encoder (score: 1): Author: "Bob McGraw - K4TAX" <RMcGraw@Blomand.net>; Date: Sat, 21 Jun 2014 21:01:04 -0500; Nope didn't think about it at the time. And too, just in case I destroyed it, I didn't want any evidence of my fauxpaux to exist. It is basically, on the inside, a segmented potentiometer. So the fau; /archives//html/TenTec/2014-06/msg00188.html (11,131 bytes)
16. Re: [TenTec] Orion 565 tuning encoder (score: 1): Author: shristov <shristov@ptt.rs>; Date: Sun, 22 Jun 2014 04:10:15 +0200; Such a drop is certainly excessive. By providing +5.0 V from an external suuply directly to the encoder you can distinguish between a bad encoder and a bad supply, and then make the repair as needed.; /archives//html/TenTec/2014-06/msg00189.html (8,805 bytes)
17. Re: [TenTec] Orion 565 tuning encoder (score: 1): Author: Barry N1EU <barry.n1eu@gmail.com>; Date: Sun, 22 Jun 2014 08:52:46 +0000; Yes, I've opened the smaller encoders on the Orion (multi, RIT/XIT, etc). The vfo encoders are totally different animals. Barry N1EU _______________________________________________ TenTec mailing lis; /archives//html/TenTec/2014-06/msg00190.html (16,694 bytes)
18. Re: [TenTec] Orion 565 tuning encoder (score: 1): Author: Barry N1EU <barry.n1eu@gmail.com>; Date: Sun, 22 Jun 2014 10:12:25 +0000; I managed to sort out the issue with vfoB tuning. Upon close inspection, the insulation on the 5-wire jumper cable from pcb to encoder was slightly frayed and I suspect intermittent shorting of adjac; /archives//html/TenTec/2014-06/msg00191.html (18,032 bytes)

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