[TenTec] Orion II Won't Power Up

[Bernie Skoch]

I've confirmed that 12vdc is making it past the molex connector and onto the pins of the circuit board.  I've removed the power protection diode from the circuit with no change.
Master reset goes nowhere.
I'm flummoxed.

-----Original Message-----
From: Bob McGraw K4TAX <rmcgraw at blomand.net>
To: tentec <tentec at contesting.com>
Sent: Sat, Jan 18, 2020 9:37 pm
Subject: Re: [TenTec] Orion II Won't Power Up

Recheck all power connections from the power supply to the radio.   The 
white Molex connector for DC power on the radio is known to be 
problematic.  Make sure all is tight there.

If the transient diode has failed it may short to ground which should 
blow the fuse or over current the power supply.   If the diode is open, 
it won't make any difference.  Except you won't have transit protection 
on the DC line.

Try a Master Reset from a Power Off condition.

73

Bob, K4TAX


On 1/18/2020 9:14 PM, Bernie Skoch via TenTec wrote:
> In the middle of transmitting today, my O2 went stone cold dead.  We had high winds that may have briefly shorted the antenna.
> DC power into radio is good.  Fuse good.
> There is a component labeled 5KP15A that appears to be a transient voltage suppression diode near the 12VDC input.
> Any clues of whether that might be what blew?
> Thanks.
> _______________________________________________
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> TenTec at contesting.com
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