The tuner on my Teac HD-1 radio is not working. I know the amplifier section is OK because I can plug a device into the aux port and it works fine. I'm good at fixing things. I have limited knowledge of electronics, but I do know how to solder. I'm hoping the tuner chip will be easy to find once I open up the case. I have contacted Teac about the possibility of getting a schematic and/or a repair manual. I am awaiting their reply. ST Electronics makes several HD tuner chips and I was wondering if I could fix the radio by soldering in a one of those chips.