XTL/XTS5000 Power Issues

[MatthiasTHM]

I own a XTL 5000 and had my firmware upgraded recently from R07, to R20. When I power down the radio for a long time and try to turn it on, the W7 head does not display. When I took the power source out, held the power button on the radio, and plugged in the power source, the W7 head display works again.

The problem I’m having is if my radio sits too long with it turned off with active power, and I try to turn it on, it won’t turn on. It will only turn on when both the power button and power source turn on simultaneously or about the same time.

Any idea why this may be the case?

 

[merlin]

That is a rather odd event. Check your power connections to the head. The black should go to the brick ground with the brick B- minus power cable.
Both orage and green with the B+ should go to your PSU.
Check your voltage and current at the supply.
XTLs don't like poor grounds or power fluxuations.

 

[MatthiasTHM]

I think I tried doing that. I unplugged and plugged the head back in and the issue still persists. I check my power, and it is running the same.

Although when I serviced it myself, I removed the head while power was going through. I then plugged the head back in, but it didn’t want to power on. I had to turn off the power source, hold the power button, and plug the power source back in,

 

[nokones]

The XTLs require a chassis ground connection not a direct connection to the battery negative post.

 

[MatthiasTHM]

It didn't give me issues before when I had direct power on the R07 firmware. It started after I upgraded it to R20.

 

[nokones]

Hmm, OK, I'm just a lowly ol' dummy that knows nothing so I "RTFIM" once, maybe twice, and Motorola said "Do Not Connect the Ground Directly To The Battery" in their installation manual. I just follow the instructions and I have way more than one XTL mobile that I haven't had any issues so far.

 

[MatthiasTHM]

I have figured out the issue. The cable that plugs into the back of the XTL5000 is not wired correctly. When I got my serial programming cable instead of using paper clips, it had no ignition sense on it, and was missing other wiring. When I used my friend’s accessory cable, it powered up just fine.

It had nothing to do with the software or the control head. It was the cable that gives issues. I can’t turn off the ignition sense because the W series control heads did not allow it.