Controlling a Raspberry Pi with a Harman Kardon AVR 170 remote control?

Question

Kodi

There is, respectively, Raspberry Pi and Harman Kardon AVR 170. Both support HDMI CEC technology. I would like to use it to control the remote control from the receiver for playback and navigation on XBMC (Raspbmc is spinning on the Raspberry Pi).
I can't get commands from the receiver's remote control to reach the player (Raspberry Pi).
In the documentation for the receiver, I could only find HDMI Link (it seems to be what I need), but how to use it is not explained.
I act according to the documentation for the older brothers of my receiver (AVR 270 and AVR 370) - I hold down the source select button on the remote control for a long time, and then the indicator (Program Indicator LED) lights up for a short time in response. Then (judging by the remote blinking), it sends commands to the current source. But nothing happens on xbmc - neither menu navigation nor playback control works.
In the xbmc log, I see that the cec adapter has been initialized and connected to the receiver.
If anyone has come across this and figured it out, I would be grateful for any hint.

Answer 1

Have you tried setting up remote.xml and Lircmap.xml? Most likely, you just need to fine-tune the XBMC itself!

Answer 2

not yet :(
PS off to read)

Answer 3

so I press all the buttons)
no, there is nothing more to manage.
I'll try another cable, although this version is 1.4.
the strangest thing is that earlier I saw strange long messages similar to messages from CEC (as I now understand) get into the log. I will think about how the setting is different now from the past.