Mark, Sorry to hear you are still having problems. The Micor series of radios were made for many years and yes, there were several variations of most every module made. That is one of the reasons that there was a complete manual set delivered with each radio.
Without a whole drawer full of manuals, these can be a beast to work on, especially when you are reassembling units from pieces of different radio combinations. I checked my community repeater manual and it does not cover the backplane board that you have either. I sometimes have to do what you are doing where you do not have a complete station to start with and it is not uncommon for us to have 4 or 5 manuals spread all over the bench to find info on all the different modules and boards we are working with. If the original customer was large enough, Motorola would supply a custom configuration made to their needs or specs along with a special set of manuals that only covered that configuration. Could be that you have stumbled across something like that also. If you leave the line driver card out, which is fine to do in your application, make sure you set the jumpers accordingly, to be a non-wireline repeater station. The jumper settings chart can be a little confusing, so make sure you are reading the proper lines on the chart. Does you control and applications manual and your community repeater manual have the same station control and squelch gate modules listed in them? Good Luck, Joe - WA7JAW --- In [email protected], "n9wys" <[EMAIL PROTECTED]> wrote: > > Well, the MICOR Community Repeater manual supplement arrived today, and I've > been going through it with the proverbial fine-toothed comb. > > I replaced most of the jumpers I originally removed from the backplane. > (According to the jumper matrix in the CR manual, they needed to be IN > whereas the "regular" repeater indicated they needed to be OUT.) I also > went through the various cards necessary and checked jumper settings for > those. This is where I ran into my next problem(s). > > First off, the repeater does NOT need a Line Driver card for Community > Repeater operation. I does need: > Time Out Timer > Station Control > Squelch Gate > Master Decoder and > 4-User Control modules. > > I went through the manual to set the jumpers as necessary, but ran into a > snag with the Squelch Gate. Both manuals ("Community Repeater" and "Control > and Applications") identify the Squelch Gate card as TLN4662A. I have about > a dozen SG cards and they're all TLN8772A, of various vintage. Parts are > laid out differently than what is shown in the manuals, and I can't even > find some of the jumpers referenced in the manuals on the cards. > Specifically, I can't seem to find JU-12, JU-14 or JU-15... if they're on > the card, they aren't very marked well. > > Anyway, I've actually take a step backward with this project, in that once I > replaced the jumpers on the backplane, I lost repeater operation with the > Line Driver card. (In a way, I kind of expected that, though.) I was able > before to key the repeater with the proper input freq and PL, now I cannot. > Also if I key the station with the PTT switch on the Station Control card, > it does not drop when PTT is released. > > My first question is: Is there a different version of the Squelch Gate card > that I need, or is the TLN8772A a "direct replacement"? If it is a direct > replacement card, does anyone have the manual page(s) for this particular > card so I can get the jumper settings and locations picked out? My thinking > at the moment is that I still don't have the jumper configuration correct on > the SG card... > > Next, the manual calls out yet a different part number for the backplane: > TCN1211A. To reiterate, my backplane is a TRN6421A. > > I'm getting more confused as time goes on. If Motorola issued > upgrades/revisions for the various control cards and the backplane, the > documentation isn't contained in any of the manuals I have. My backplane is > apparently properly labeled for card placement (according to the Community > Repeater manual) but for whatever reason, I'm not making any progress. >
