identifying pos/neg contacts Need some help on a simple circut

Took the thing apart to clean.
I forgot to take a pic before pulling two wires
I need to see if I got my wires crossed and don't want to add power and short the board or burn the motor.

I have a bunch more photos I can add but I think this should cover plenty information. Let me know what y'all think please. I'm really just starting this sort of thing.







It looks like these brown and white wires in question are just positive and negative wires for the motor





Loose brown wires here go to the far left and far right contacts on the board







Tried hunting down a wiring diagram but havent had any luck. Not really surprised but I'll include the unit idenfication I have.
My unit, screenshot from offer up listing page before I bought it.






This is the closest visual match I have found so someone is rebadging






This is a photo of the label on the bottom. I can't find anything by cunill that matches this unit






The motor is cunill though. I can't doubt that much

The motor looks like an AC one (does it carry any markings?), in which case there is no designated positive and negative input and reversing the two wires shouldn't matter.

I don't see markings for the motor but on two of the four posts on a capacitor has markings.

EDIT: Removed bad info.

I can confirm testing continuity on Pins 1 2 and 3 for each of the 6 connections at the capacitors all complete the circuit.

Can't really help but in the UK and, I believe, all the EU (Spain is in EU), brown is live and blue is neutral. Earth is yellow/green stripes. HTH.

Mike.

Pommie said:

Can't really help but in the UK and, I believe, all the EU (Spain is in EU), brown is live and blue is neutral. Earth is yellow/green stripes. HTH.

Mike.

Click to expand...

But that's only for mains leads, internal wiring isn't covered by it - and certainly internal AC wiring to a motor wouldn't be, as it makes no difference which way round it is (as suggetsed back in post #2).

The small PCB (printed circuit board) with the Triac semiconductor transistor attached to the black metal heat sink, appears to be a motor speed control board. The red push button tact switch must be for boasting the motor speed momentarily for this coffee grinder? The small blue potentiometer on the PCB, must be for setting the lower motor speed. If I am correct in my assumptions of what I see in your pictures, as long as you connect the two brown wire connections coming from the power switch, (as they are currently shown connected to the power switch in your photos), to the two outside terminals (#1 & #4), and the brown and white wires coming out of the motor to the inside terminals (#2 & #3), I think the unit will function properly. By the PCB traces I can see from your photos, AC power coming into the PCB from the power cord black and white wires, thru the power switch, (neutral & hot wires both opened by the power switch), must connect to terminals #1 & #4 to create the DC power to run the components on the PCB. Hope this helps.