Motorola Astro mobile resets during programming

[charlieone]

I just purchased a used Astro mobile (D04UJF9PW5AN). When I go to read the codeplug, or even test the RIB comm, the radio immediatly turns itself off, then back on. I get a power failure message in RSS.

Using the same programming cable I can read and write to my Spectra (D45KGA5JB5AK), no problem.

I've checked the cable and the connections appear secure. The battery in my RIB is fresh.

I thought the power supply might not be providing enough current so it's now attached to a big Astron supply.

Any thoughts on what it's doiing?

 

[cmdrwill]

If you have the correct programing cable the RIB gets it's power from the radio.

Check your power connections to your radio. Astros have a turn on surge so you need about a 2 amp power supply for programming.

 

[charlieone]

If you have the correct programing cable the RIB gets it's power from the radio.

Check your power connections to your radio. Astros have a turn on surge so you need about a 2 amp power supply for programming.

The cable I'm using is based on the schematic on Batboard. It's worked on my Spectra just fine. The schmatics they show for the Astro is exaclty the same. Based on that I'm assuming I'm using the correct cable.

My bench supply was faulting using a 1 amp output so I switched over to a 20-30 amp Astron. Same problem. As soon as I try to read from the radio the middle character lights up really bright then the radio resets.

Other symptom I forgot to mention was that the first time I powered this radio on, the screen would dim a bit and the power supply would buzz telling me that it was overcurrent. It would do this for a second every 5 or so seconds, but it seemed to only do it on particular modes. I'm suspecting that it was trying to affiliate with the system that was already programmed.

 

[mancow]

Are you sure it's not an Astro Plus?

 

[charlieone]

Are you sure it's not an Astro Plus?

Not a Plus. The manual says it would tell you on startup if it was a plus. Mine just says self check.

 

[RKG]

Just a guess, but if you don't have a properly pinned accessory connector, the radio may attempt to transmit an emergency signal upon power up, and if when that happens voltage drops because of an inadequate power supply, the radio will power down and power up again.

 

[charlieone]

Just a guess, but if you don't have a properly pinned accessory connector, the radio may attempt to transmit an emergency signal upon power up, and if when that happens voltage drops because of an inadequate power supply, the radio will power down and power up again.

That was one of my thoughts. The cable I'm using is the same one I built for my low power Spectra. From everything I've read they use the same cable. My Spectra has no problem programming.

 

[cmdrwill]

Missing EMERG jumper on the 15 pin connector?