?
Get the service manual and read the portion that
deals with the RX/TX change-over. I'm pretty sure you'll find a description as
to how the change-over is implemented. Normally there are voltages such as RXB
and TXB or similar, which are switched on the transition.
?
Clearly that process is not working since RX
doesn't turn off when you try to transmit...That's likely your first
clue...
?
I hope this helps....73...Jordan VE6ZT
----- Original Message -----
Sent: Wednesday, March 12, 2025 9:51
AM
Subject: Re: [Kenwood-Amateur-Radio]
TS-870S no TX
On Wed, Mar 12, 2025 at 03:12 PM, David Frechette wrote:
You should be able to find a schematic and trace the circuit, at
least in theory!
I have the schematic, just hoping for some pointers. Nothing happens when
I operate PTT, it stays in RX.
?
--
Mike G8GYW
