Galaxy Saturn problem

[RT2020]

Hello again, started messing with this radio again, changed the voltage regulator and now the display comes on and it recieves bit only with the echo switch on, transmit just squeals through the speaker, flip the echo off and the display goes off and RX goes away

 

[nomadradio]

Not a symptom I remember seeing.

73

 

[Cable Guy]

I saw something similar once, it took me an hour to find that solder blob.

 

[RT2020]

I guess it could be that, but it just started acting up one day and got worse

 

[nomadradio]

A look at the schematic reveals that the echo and the transmit input from the mike are not connected. Likewise the echo switch has no connection whatever to the counter display. The only way that switch can make a difference to the those functions is for something to connect them together.

Something that's not on the radio's schematic diagram.

73

 

[RT2020]

A look at the schematic reveals that the echo and the transmit input from the mike are not connected. Likewise the echo switch has no connection whatever to the counter display. The only way that switch can make a difference to the those functions is for something to connect them together.

Something that's not on the radio's schematic diagram.

73

That’s some good info, I’ll look into that, thank you