I am using a TK-705D for the receiver side of a low power 2mtr. rptr. The 705 was working fine (Tx and Rx) and was sitting on the workbench idling in Rcv. mode ,with no mic. attached and no signal being fed into it thru the antenna port, and suddenly went into the TX mode. I have powered it on and off, removed it from the rptr. and powered it up indepndent of anything else but it remains locked up in the Tx mode. I cannot even do a reset on it as it won't accept the program when I power it up.
I have been able to disable the power module and the IC-6 chip that preceeds it and disable the diode Tx/Rx antenna switch to eliminate any RF output, but something else inside the circuitry is telling the radio to stay in the TX mode. Can anyone advise me how to completely disable the Xmit side, so I can get it back in the Rx mode and continue to use it for the rptr. rcvr.? Thanks in advance for any assistance. Doug
