Locate the driver Transistor for the knocker coil, and temporarily joining the 'collector' pin to Ground (0v) will prove the entire connector-pin/wiring from board-to-coil.....
Either this transistor isn't working, or not being activated..... pointing back to the ROM issue again....
MM.
My logic says that if the adjustment is not available the knocker functionality has been turned off somehow - either in the ROM itself or via the jumpers.
See attached diagram and (poor) photo of what you are looking for. On the TZ you are looking for W14 through W18, these should be labelled on the circuit board. The jumpers on my Mousin' Around! look like small white resistors, presumably they look similar on your TZ. First question: are all of W14 through W18 present? Second question: if not, are you comfortable enough to solder in a piece of wire if a jumper is missing?
My camera battery is playing up hence I only managed one photo.
