Panasonic KX-T7636 - Making Calls; Making Calls: Extension and Outside

7.3. REMOVING SOLDER FROM BETWEEN PINS
1. Add a small amount of solder to the bridged pins.
2. With a hot iron, use a sweeping motion along the flat part of the
pin to draw the solder from between the adjacent pads.
8. TROUBLESHOOTING GUIDE
8.1. NO OPERATION