kenwood tk 890

I have a dual band single head setup with a 790/890. Everything works great on the VHF side however I cannot receive on the UHF channels unless I put it into monitor. I know the PLs are correct and I have adjusted the open and tight squelch settings as discussed on these forums any thing else...

i just bought a kenwood tk 890 off eBay. it has the remote kit . krk 7db, i cannot get it to power on. the ignition sense cable is hooked to the radio unit. when i plug the power cable in i can hear a relay click. Any help would be appreciated thanks.