[R-390] How to remove RF module?

[Larry H]

Hi Allen,  There's a good description in the manual, but it is little bit of a project.  I think maybe it might be worth checking the voltages first.  It sounds like something major is wrong.  Are the tubes lighting up?  Is the main power cable connected and making contact OK?  Are the small coax cables hooked up right and working correctly?  Is the band switch aligned correctly?
Regards, Larry