Tvheadend

Dear all, I have successfully set up openelec, kodi and tvheadend server for dvb-c.

Now for a different reasons I needed to switch from openelec to raspbian. During the tvheadend server setup I am facing the issue that I see the muxes but get no services. I somehow feel this is due to access rights issues. I have defined during installation a different administrator account name and password than the Standard setup. Well, having said that I am a) interested in fixing the dvb-c setup and b) even more interested in understanding how I can analyze log files / debugging files? I cannot find any log file which may help me to fix my issue?!

Does anybody have any idea on either (a) and/or (b)?

Best regards,
Stefan