Can you check if there is power feed to the CS2/CS3?

Create a programming track with a few good track sections and a car or bumper with lights. Unplug everything and plug in the programming track in the CSx. One at a time. Any power from any of them?

Now I realize that I wrote programming track. I should have written test track since it is intended for all four track power outputs (one at a time).
You didn't say what the screen with the info on power voltage, amp. and temp. said. If you didn't check it before, do so now when you do the test.

Hello Greg.
You can use terminal 60125 with CS3Plus and also booster, Both terminal and booster can be the new ones or old ones.

Booster can be connected direct to CS3Plus to the socket which has the same numbers of connections as boosters cable.
Terminal must connect to CS3Plus to the socket which have same number of connection as its cable.

You can connect also booster to terminals socket.

Booster have cable with seven(7) connections, this cable can be connected to CS3Plus/CS2 or to terminal.
Terminal have cable with nine(9) connections this can be connected only to CS3Plus/CS2, in the terminal there is one(1) socket to which you can connect another terminal and to this another terminal . . and so on.

'If you look at CS3Plus from behind: from left to right

plugin slot for a chip card, and Slot for SD-memory card (max 32 GB), speaker/headphone con., network RJ55, Three UBS, first one is only charging, after these:
Märklin CAN-bus (9)- conductor) Connection for Märklin Devices (7-conductor), Märklin CAN-Bus input(6-conductor),
and finally Programming track connection, Main Track connection, Switched mode power pack connection and rightmost Plug-in slot for chip card.

Be careful with different cable,s every cable ( original) has been made so that you cannot connect them to wrong socket.

Regards

Jukka

Thanks Jukka for the information.

I hace the plug from the 60125 terminal connected to the 9 pin socket on the back of the CS3+. I have a booster connected to the 60125 terminal and a seperate power pack to the booster, however, the "on" on the booster does not light up. Do I need to do anything on the CS3+ to connect the booster, or does the CS3+ automatically connect the booster ?

Update :

I used another booster and now it works. The other booster is faulty - back to Marklin for repairs, but this is nothing unusual. I have at least one item per month returned for repairs under warranty. In other thread I've complained about the poor quality of Marklin's products, especially their electronic components. Trying to get Marklin's senior management to realise that buying and using cheap inferior electronic components is bad for business, is like trying to tell the brick wall.