After waiting for several days for registration to happen, a new user somehow used a site support page to send a question to the admins:
Message:: Hello
I have old defender model. I accidentally cut my power cord(cutting grass) and lost the plug connector. I obtained a new waterproof connector, but on the motherboard, there are only markings for E1 and E2. Could you please confirm which one is positive and which is negative?To try to answer your question, assuming you mean the Defender controller PCB, here is a photo with an
"E2" label that matches your question. (The photo is from a wiki
construction topic.)
The power connector "signal" is transformer isolated AC, so there is no polarity (positive or negative). The
schematic shows connection to two full wave bridge rectifiers. Accordingly, there would be no "polarity" preference.
(For line voltage AC wiring, the equivalent designation is "hot" and "neutral." This is critical for lamp wiring where the lamp socket shell should be connected to neutral so that entire lamp does not become "hot" during periods of high humidity, contamination, deterioration, etc., resulting in a shock hazard, or a subtle vibrating sensation. The Zip cord wire with the ribbing or stripe is the neutral wire, and the other one is hot.)
The picture shows a Zip-like cord connection in which the outer (towards J4) conductor is ribbed. You might as well install the new cord into the pads like the picture, but it doesn't matter, because it is isolated low voltage AC.
BTW, you could use those "grass clips" (mentioned elsewhere) to place the power cord at ground level to avoid snagging the cord when walking or mowing.
New Connectors!?Now, what is interesting to all on this forum with worn out or corroded connectors is: how did you obtain a new connector? The vendor and part number? Did this connector come with a cable? I think we all would like to replace our connectors, which have become intermittent over the last 15+ years. We are interested in both the male and female (which is which?). Thank you for your time.