Steve, By any chance, has the radio been turned off and on several times in a row? I had a faulty voltage monitor control that was flipping on and off since it was teetering on the threshold voltage and kept cycling my T2-135. Eventually it just went stupid. According to Scott, there is a slight chance when that happens for the processor to overwrite it'self do this. I think it might have somthing to do with the bootloader on power up.
Scott was able to re-flash mine and get it going again. Jason KE4NYV RPC Electronics www.rpc-electronics.com --- On Thu, 7/23/09, Steve Bragg <[email protected]> wrote: From: Steve Bragg <[email protected]> Subject: [tracker2] T2-135 inop, red LED on, no serial To: [email protected] Date: Thursday, July 23, 2009, 8:33 PM My long-suffering T2-135 may have bit the dust. Can anyone give me a read on this? It's installed in the Alinco radio, set to the APRS channel with the modem enabled (remember, it's been working in this configuration for over 18 mos). As soon as the radio is powered, the red and green LEDs blink successively, then the red LED turns on steadily. The radio is receiving packets (you hear the "click" if the volume is turned up), but there is no status change on the LEDs like there used to be, and no KISS data is output (I had it in KISS mode on Port A). It will not connect to OTWINCFG.EXE, either with the "Load Firmware" box checked or not. I know it isn't the serial port or cable, because I can use a terminal emulator, short pins 2 & 3, and type and get characters echoed. I know it's not the connector polarity, because I tried a null modem, too, to no avail. It seems like the processor must be running to blink those LEDs, but can anybody think why the T2-135 won't respond in any other way? Thanks & 73, Steve Bragg KA9MVA The HamHUD guy
