If you're making th e power connections to the same place on the Pegasus (I
assume you are), then you need to get the ol' voltmeter out & see where you do
& do not have 12 volts. I'd start at the spot you make the connection & trace
toward the switch if that spot is OK. Yep, it does sound weird.
Dave
WA3F
----- Original Message -----
From: "John Huffman" <hjohnc@gmail.com>
To: rmcgraw@blomand.net, "Discussion of Ten-Tec Equipment"
<tentec@contesting.com>
Sent: Saturday, April 28, 2012 9:19:01 AM
Subject: Re: [TenTec] Pegasus DC Input Issue
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 relay.
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
confused.
Thanks for the suggestion.
73 de K1ESE
John
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 is
> 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.
>
> 73
> Bob, K4TAX
>
>> Through various misadventures, the DC input relay on my Pegasus will not
>> 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) I
>> 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 if
>> I use a battery for the 12v. I am guessing a grounding issue here,
>> somehow.
>>
>> Any suggestions greatly appreciated.
>>
>> 73 de K1ESE
>> John
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>>
>
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