I just picked up this TS-690S with a few known problems (mostly minor), including a broken 12 VDC power input connector shell. I found a replacement connector shell and swapped it in, but it required some disassembly to get to it. I carefully removed the connectors necessary to remove the output filter assembly, and reinstalled everything back to their proper locations.
For testing I connected it to a dummy load and wattmeter. The radio powers up fine but transmits only on 6 meters. The power meter on the display stays at zero on the HF bands, and the VSWR meter does not move. Transmitting on 6 meters gives >50 W output. I have the antenna slide switch in the proper position.
I have the PDF of the service manual but have only started to go through it. I was hoping that someone with more experience than I could point me in the right direction as far as troubleshooting, isolating the failure, and/or likely causes.
73,
Stan N6BYU
