How Do You Solder Wires To A Circuit Board. I started soldering just. If you cant find any cracks smell itit should smell like a PCB not anything else.
Then remove the soldering iron tip from the joint. Hold it there for 3-4 seconds. Heat up your soldering iron and once fully heated touch the tip to one end of the wire.
Hold it on the wire for 3-4 seconds.
How to test an optoisolator. Clean your soldering iron tip. Heat them for a second or so before you apply solder. How to Solder Step 1.
