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APX4500 Igntion trouble

Covering the following Subscriber devices: APX1000/1500, APX3000, APX4000/4500, APX6000, APX6000XE, APX6500, APX7000, APX7000XE, APX7000L, APX7500, and APX8000.

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celltech25
Posts: 505
Joined: Fri Apr 29, 2005 3:54 am

APX4500 Igntion trouble

Postby celltech25 » Fri Feb 09, 2018 10:13 am

Have a APX4500 800 Mhz Firmware 16.23.00

When you apply power without ignition the Control head goes into a loop where it will flash APX4500 for a few secs you hear a small blip from speaker and then it starts over. When you apply ignition the radio boots up and works as it should whenyou remove igntion the radio shut off and start the APX4500 loop on the display

Also Noticed if I program thru the head the radio goes into flashzap after every programming and downloads this does not happen when i go to the Brick port to program. Im thinking maybe i have a bad Head?

it is a Dash mount unit

KF5ARD
New User
Posts: 3
Joined: Thu Feb 15, 2018 10:17 am

Re: APX4500 Igntion trouble

Postby KF5ARD » Tue Feb 20, 2018 6:29 am

For the power cycling issue, check the ignition sense setting in the CPS. It sounds like it is set to require ignition to power up.

n1gtl
Posts: 112
Joined: Tue Mar 25, 2008 12:43 pm
What radios do you own?: XPR5550, XPR7550e

Re: APX4500 Igntion trouble

Postby n1gtl » Wed Feb 21, 2018 12:12 pm

Where are you applying ignition power? I believe it has to go to the yellow wire on the control head, not on the chassis.

Best bet for ignition programming is "soft power up". It will follow ignition but also let you turn it on via the power button.

Also, ver 17.0x of firmware and CPS is out for this radio.

User avatar
motorola_otaku
Posts: 1854
Joined: Tue Jan 13, 2004 7:03 am
What radios do you own?: 2 turntables and a microphone

Re: APX4500 Igntion trouble

Postby motorola_otaku » Tue Feb 27, 2018 2:21 pm

celltech25 wrote:Also Noticed if I program thru the head the radio goes into flashzap after every programming and downloads...

That... should not happen. I'd send it off to Juarez if it's still under warranty.
When exposed to Rapid Fire Growth or Thermal Emergency, two things are lost:
1. Ability to use fine motor skills
2. Presence of mind


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