Check The Rf Part - Panasonic KX-TG6500BXB Service Manual

13.9. Check the RF part

13.9.1. Finding out the Defective part
After All the Checkings or Repairing
1. After all the checkings or repairing, cancel the Registration of Regular HS to checked Base Unit, and checked Handset to
Regular BU.
2. Re-register the checked Handset to the checked Base Unit, and Regular HS to Regular BU.
Note:
(*1) HS: Handset
(*2) BU: Base Unit
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KX-TG6500BXB / KX-TGA650BXB