I was aware that there might be previous modifications. I have 14 of these chassis I picked up from the same source, so I have been comparing them as I go along to watch for issues like that. The only thing I have found so far is two or three of them were modified for connection to an external controller, like a Zetron panel. But I am not using one of those chassis (or at least I don't think).
I had some issues with connections to the cards - some of the cards themselves had bad connector pin receptacles, and in other instances the pins on the backplane were bent - but I think I have all this resolved. I'll double check the card edges to make sure the pin seats are tight. I have an extender card to work with, too, so I think that'll help. Mark - N9WYS From: Repeater-Builder@yahoogroups.com [mailto:[EMAIL PROTECTED] On Behalf Of Com/Rad Inc Sent: Sunday, July 27, 2008 10:00 AM To: Repeater-Builder@yahoogroups.com Subject: Re: [Repeater-Builder] UHF MICOR Unified Chassis Hi Mark I have built a few of these from "subs" not necessarilloy from the same station - Not always a good idea. Sounds l ike you have everyting in the right place(s) -- With equipment this old you're up against (1) Possible "modifciation" from previous interventions (2) aging of edge connection and integrity. (3) ?? We have worked out issues with Mocor stations in recent times and I found that following the system diagram and the related card diags you can scope out the repeat audio at different poiints and shoul hav eminimal time wasted in locating where the problem is - from there you can swap cards ( if you have spares ) or do diags on the card. Check the condition of the back plane pins etc and jiggle the sta control module around along with the others. etc you may find an intermittent. ----- Original Message ----- From: n9wys <mailto:[EMAIL PROTECTED]> To: Repeater-Builder@yahoogroups.com Sent: Sunday, July 27, 2008 8:56 AM Subject: [Repeater-Builder] UHF MICOR Unified Chassis OK gang, I'm working on another project and have run into a wall. I have a UHF MICOR Unified chassis station that I am reassembling with the thought of putting it on GMRS once finished. Yes, this station was TOTALLY disassembled and scattered to the four winds - chassis, PA and some cards came from one place, more cards from another, yet more cards from yet another place, power supply and cabinet from yet another... I have the station reassembled to the point where it is operating in that it repeats (keys up on receipt of signal and PL) but it does not pass audio. And yes, I am resurrecting it on the freqs it was originally tuned before I make any changes. Right now it's on 462.0000/467.0000 and has one 4-User Control Module (PL decode) card in the chassis. No PL on TX yet... The station has the following cards in the chassis (listed from right to left): Line Driver Station Control Module Squelch Gate Time Out Timer Master Decoder 4-User Control Module Card Am I missing any other cards? I know these stations have jumpers all over the place - backplane, cards, etc. - that all needed to be configured properly for the thing to work the way it should. I have the manuals, but I am stumped. I know I'm missing something, SOMEWHERE - my problem is: WHAT and WHERE? Besides, the manual's diagram for the backplane shows jumpers numbered in a certain sequence and the backplane I have has them numbered differently - they're in the same locations, but numbered differently. (For example JU1 and JU3 are opposite when the manual is compared to the one I have in the shack.) I've also gone to the Repeater-Builder web site, but those pages seem to refer more to the conversion of the station or cards rather than making it work "as designed." Maybe once I get it going, then I can think about conversion of the cards that Kevin referenced... Anyway - as far as the backplane goes, I think all jumpers except for JU5 should be OUT. Am I correct? (I currently do not plan on any remote control of the station, but later down the road maybe tone remote operation...) And what about the Line Driver, Squelch Gate and/or Station Control Module cards jumpers? Any ideas? (Kevin, you're the MICOR guru...) Thanks, Mark - N9WYS No virus found in this incoming message. Checked by AVG - http://www.avg.com Version: 8.0.138 / Virus Database: 270.5.6/1575 - Release Date: 7/26/2008 4:18 PM
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