Jim Thanks for that tip as I found that the 5 volt 7805 regulator was dead on the side wall by the power supply.. Installed a new one and things are working now even the receiver hears signals. I don't have an antenna up right now as I am putting up a tower as I only managed to get the bottom section and in concrete. Display works and so does the receiver. Having trouble with the relay on the back left side not working well to go from receive to transmit. So that will be my next job on it. Thanks to all for the help as I really appreciate it.
73, Jim VE1RB
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On 2024-12-20 22:41, Jim Shorney via groups.io wrote:
Check all voltages. You have two 5 volt regulators on the sidewall. One powers the counter and one powers the LED display. They are fed from the 4 pin Molex near the right edge of the board. R9092 ( 5 Ohm 5W ) is another suspect. Side note, there is no "backwards" for the four pin Molex. Drake cleverly wired it so it will work either way.
On Fri, 20 Dec 2024 20:34:46 -0400
"Jim Harris via groups.io" <radiove1rb@...> wrote:
Thanks Mike for the reply. I have checked a lot of the IC's and they do
have 5 volts VCC on them but will check them all. Maybe one does not. The
NORM/EXT switch on the back does not do anything. they display is black and
it stays that way. I will let you know what I find out.
73, Jim VE1RB
