Hello all, Does anyone have any experience in by passing the control box on a set of Christmas lights? They come with 7 settings but I only want them on steady and they have no memory bank so when you switch them back on they go back to flashing. I have read a lot online but the advice doesn’t seem to be up to date with modern circuit boards (see photo). I was hoping for a neat join somewhere along the way or simple solder rather than adding components to the board. Any help appreciated. Thanks.
If you have a multimeter, measure the voltage between the + and - terminals. Then with the probe still on the negative terminal, measure the voltage on the IC side of resistors R1-R4 when they are on during a flashing sequence.