It is difficult to give you advice with such vague descriptions. Please provide the model and/or FRU numbers for each component in your station, including the chassis and power supply. It is possible that there is an incompatibility issue at work here. Since the Quantro/Quantar uses a digital SPI buss to link each component, the station control module (SCM) assumes that certain modules are connected before the power-up diagnostic routine will pass. In particular, certain power supplies will only work with certain PAs. I suspect that may be a factor in your case.
73, Eric Lemmon WB6FLY -----Original Message----- From: [email protected] [mailto:[EMAIL PROTECTED] On Behalf Of ajbradio Sent: Thursday, July 12, 2007 12:54 PM To: [email protected] Subject: [Repeater-Builder] Motorola Quantar and Quantro Repeater Questions. Hi everyone. Don't post often but I ran into a slight problem and can't seem to find an answer and thought that I'd ask in the group of some of the Quantar technicians for some guidance. I have what I would call a partial Quantro which is pretty much complete minus the power supply and final amplifier section. I also have a Quantar chassis, the gold colored one, with a power supply. What I've done is taken all the components out of the Quantro chassis and placed them into the Quantar chassis. I changed out the firmware to a Quantar simm I had as well in the SCM. Now, when I power it up, I immediately get a power supply failure LED coming on. If I remove the Quantro PA unit, which looks to be more like a small low power driver and not your typical 100 watt PA assy., everything fires up and starts proving out but of course fails because now there is no PA. So, my question is should this PA assy., which I think is maybe 5 to 25 watts max as it has no real cooling fins, work in the Quantar chassis? Is the PA for the Quantro I have majorily different than a Quantar? Is it possible there is an incompatibility between a Quantar modules backplane board and that of a Quantro? Or, do I maybe just have a dead and shorted out low power PA module? The exciter shold be okay as I don't get a fault on it. This is a UHF low split and I'd like to see if I can get it working somehow. ANy help would be greatly appreciated. Thanks AJ
