Hi,
i hope i can help you...
Error Code: 61F = left engine asynchronously. Please clean the photoelectric / light barrier.
Error Code: 41F = is an error message for a bill acceptor. Do you have a bill acceptor in the machine ? Then please remove the cable from the bill acceptor. Normally you not need the bill acceptor. He only works with German mark bank notes. Then the error E41 will be gone.
Error Code EE F: There are two possible causes. First cause ist the easiest; Slot machine to often turn on and off. Second cause; the battery on the controller board is empty. Please change the battery.
Possibly, after clearing the photoelectric error, the Slot machine works without error.