Motorola Cdr700 Repeater Programming Manual

I am attempting to program the CDR700. I got it setup to repeat on the same frequency but got a constant tone from the TX radio every time the RX radio received. I changed to a different TX frequency and no more tone. I still want it to re-transmit on the same freq. Somewhere in the middle of changing settings to find out why I got the tone I could no longer receive on the RX radio except if I unsquelched it (by holding P2 button for 1.5 sec). I swapped the radios, no change. I removed the repeater and duplexer and connected the radio directly to an antenna, still no change. Something is keeping the radio from breaking squelch unless I manually do it. I get no light on the RX radio when it receives, even when it is unsquelched. I have taken all the repeater settings out and still no change. I thought I had saved the default cps but apparently I didn't. I have been through every setting. I am testing on an unused channel (464.475). As I had said I swapped radios to see if it was a receive issue as the othr radio was set for TX only but both radios do the same thing, no receive, (unless I unsquelch) and no RX light at all.
Also a side question about this setup - the duplexer has a high and a low port, the CDR500/700 manual does not label these ports so I had to assume by the pictures that I connected them correctly. Which radio RX or TX, goes to the high and low ports?