According to the data sheet there is OTPROM and some EEPROM in the part depending on the ordering code, I'd say that there is at least some kind of boot loader if not all of the program memory in there and all of the stored values.
See if you can get a replacement micro from the manufacturer. On Sun, Sep 6, 2009 at 3:22 PM, terry dalpoas<km...@yahoo.com> wrote: > > > Did try that, no luck. I did manually key it by applying 5V to the gate of > the FET. That did work. Does look to be CPU, since it drives the FET > directly. > > > ________________________________ > From: DCFluX <dcf...@gmail.com> > To: Repeater-Builder@yahoogroups.com > Sent: Sunday, September 6, 2009 4:00:53 PM > Subject: Re: [Repeater-Builder] RLC-1 Controller CPU > > > > transistor may be shorted between gate and drain, try removing it off > the board and try it again. > > On Sun, Sep 6, 2009 at 11:29 AM, terry dalpoas<km...@yahoo. com> wrote: >> >> >> Hello. I have a Link Communications RLC-1 controller that has a bad >> repeater port. The only thing wrong with that port is that the 2n7000 FET >> that keys the PTT is not getting a signal from the processor. I checked >> at >> pin 36 of the CPU and it only has .37 volts when it tries to key up the >> transmitter. I have the link port setup for repeater, and I get 5 volts >> and >> pin 35 of the CPU. That port works fine. I have narrowed this down to >> something wrong in the processor. The processor is an MC68HC711E9. I can >> get these through Mouser and Allied. Does anyone know if these will work >> or >> are they programmed from Link Communications for their controllers? >> >> 73 Terry KM5UQ >> >> >> >> >> > > > >
