Assuming you are using an European version of 7-40 Mk4 or 5.
I'm using the FS-23 connected to a BV 10-46-EU and I installed a FS-23 on a BV 7-40Mk5-EU of friends
(both systems with new Beo4s)
setup of TV:
- used AV3 and set it to "V.AUX2" or "PC"
- set AV 3 to YPbPr to YES
- *) installed a 3.5mm mono jack <> 3,5mm mono jack cable from FS 23 to TV
(aesthetics - to avoid visible cables on the front of the dock)
- *) choosed "CABLE" in the IR submenu
- on the 7-40 I used a SCART to 3x Cinch/RCA "camera adapter" to connect the sound cable
*) if you want to use an IR-blaster cable set "IR" in the IR submenu.
check on your TV:
- PUC list already updated via service tool?
- iPort FS-23 appears in your TV in the list of selectable Set-Top-Boxes?
Beo5:
- Beo5 programming will be just the "source name" (in my case it would be "PC" or "V.AUX2") and
"Menu" to open the "Help for Navigation"
- all the other buttons to navigate " << ; >> ; UP ; DOWN ; 4 x colours ; back and play/go"
already exist on a Beo5 as "real" buttons.