Hello,
I have a TS-120s with no receive, just a faint hiss from the speaker.
Checks so far:
VFO is good, digital readout on all bands is fine.
I have checked the voltages on every pcb and they are all correct.
I have scoped the oscillators and they all are present.
When I connect a signal generator to the antenna socket, I see it on the input of the rf board but not on the rif out.
So, I injected 8.83MHz on to the rif input on the IF board..still nothing.
If I pull the 2 pin connector (+14v and RB) off the IF board I get white noise out of the speaker.
Obviously, I have checked that the rf gain pot and all other controls are set as they should be so the radio SHOULD WORK!
I've checked all the devices on the IF pcb and the board for dry joints, broken tracks etc and all appears ok.
It's starting to baffle me now; any help would be GREATLY appreciated, thank you.
73, Chris G0VOE, Somerset, Southwest England.