Disconnect the K1 and K2 terminals from everything else. Put an ohmmeter across those terminals and carefully isolate the LPF Board from everything else in the radio (use a piece of cardboard as a spacer/insulator). Power up the rig and watch the ohmmeter. It should read 0 ohms or close to it if the relay is pulling in properly.?
Let us know what you find.?
73 - Fred, N8YX?
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-------- Original message --------
From: KI7WQH Steve <sdandrus@...>
Date: 5/5/20 10:03 AM (GMT-05:00)
Subject: Re: [yaesuft301d] Ft-301ad blinking s-meter no transmit
OK, it was actually easier than I thought. Now that I have access to the rear of this board, is there an easy way to test the relay? I feel like testing the relay will be way easier than testing the thyristor?with my knowledge level and equipment, but I'm here to learn.