[TenTec] Pegasus DC Input Issue
rmcgraw at blomand.net
Sat Apr 28 07:29:21 PDT 2012
This then says the cable & connections used for the battery is good and
the cable and connections used for the power supply is likely in need of
attention. Further, I don't view this to be an issue inside the radio.
Carefully check connections to see that they are solid, haven't heated
and lost contact.
Do check to see that the power supply is not folding up when you turn on
the radio. Although I view unlikely, you could have two bad power
supplies. A volt meter check at the power supply terminals and at the
radio AUX connector is certainly warranted in this case.
> Bob -
> The Pegasus does not switch the power supply. The power supply is on at
> all times. The ON/OFF switch on the front of the Pegasus is a two wire
> connector labeled "1" that goes to the DC input board that holds the
> I tried the Pegasus with two different power supplies, one switcher and
> one linear. It does not work on them, but does work off a battery. I'm
> Thanks for the suggestion.
> 73 de K1ESE
> On 4/28/2012 8:55 AM, Robert Mcgraw wrote:
>> By chance is the AC supply switched by the power switch on the Pegasus?
>> If so there 4 wires on the power cable, 2 for DC and 2 for the AC
>> switching line. If the switch in the radio that controls the AC line
>> defective then the power supply will not turn on, therefore the radio
>> will not turn on. Clue is that it works on the 12V battery says the
>> relay and circuit in the radio is OK.
>> Bob, K4TAX
>>> Through various misadventures, the DC input relay on my Pegasus will
>>> engage when power is applied, mostly.
>>> I suspect the two transistors or the one diode near the relay coil.
>>> Perhaps this symptom would give one of you a clue to the component(s)
>>> should replace.
>>> The DC input relay will not trip and power up the Pegasus using a
>>> regular station 12v power supply. It will trip and power the Pegasus
>>> I use a battery for the 12v. I am guessing a grounding issue here,
>>> Any suggestions greatly appreciated.
>>> 73 de K1ESE
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>>> TenTec at contesting.com
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