Check The Rf Part - Panasonic KX-TG5671BXS Service Manual

7.9.

Check the RF part

7.9.1. Finding out the Defective part
After All the Checkings or Repairing
1. Re-register the checked Handset to the checked Base Unit, and Regular HS to Regular BU.
Note:
(*1) HS: Handset
(*2) BU: Base Unit
7.9.1.1. Registering a Handset
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KX-TG5671BXS / KX-TGA560BXS