[928uk] analogue clock wiring

[phil rick]

thanks Richard
i just hooked it up to a battery, brown on earth then tried all other
combinations of 12v on the other 3 wires and the black one alters nothing,
if it comes from the light switch i thought it might light the bulb to
possibly keep it illuminated as a belt and braces approach but light only
comes on with the blue/black wire at 12v
BUT
12V on blue/black wire = 0.5V on black wire
0V on blue/black = 0V on black wire
its sending a 0.5V signal OUT on the black wire
or there is a fault on the black wire circuit inside the clock
cheers
Phil

On Sun, Dec 31, 2023 at 4:11 PM Richard Armstrong via 928uk <
928uk at lists.928.org.uk> wrote:

> Hi Phil
> I don't know what its purpose is but it appears to be a supply from the
> light switch - Black
> Then there is a fused supply -red.
> Ground - brown
> and a common lighting supply black and blue.
> Why there should be 2 light supplies I am not sure
> Richard
>
> On 30/12/2023 12:01, phil rick via 928uk wrote:
> > looking online, such as Rogers site:
> >
> >
> https://928srus.com/products/928-641-701-05-70b928-641-701-05-70b-analog-clock
> > it shows the usual 12v , earth and clock illumination and a not used
> > terminal.
> > just removed the one from this 90 and the factory wiring loom connector
> has
> > a wire in the not used location
> > before i break out the wiring diagram's anybody know what this wire does
> to
> > the clock?
> > cheers
> > Phil
>
> --
>