Panasonic SA-BTT775GA Service Manual page 92

Step 5 Flip the AC Inlet P.C.B..
Step 6 Desolder Red (TL10) Wire & Black (TL20) Wire on the
AC Inlet P.C.B..
Step 7 Remove the AC Inlet P.C.B..
Caution: During assembling, ensure that AC Inlet P.C.B. is
seated properly located & fully seated onto Bottom Chas-
sis.
Caution: During assembling, replace the AC In PC Sheet
Unit if torn.
92