Check The Rf Part - Panasonic KX-TG9581B Service Manual

9.1.4.

Check the RF part

9.1.4.1. Finding out the Defective part
1. Prepare Regular P (Portable) and Regular BU (Base unit).
2. a. Re-register regular P (Normal mode) to Base Unit (to be checked).
If this operation fails in some ways, the Base Unit is defective.
b. Re-register Portable (to be checked) to regular BU (Normal mode).
If this operation fails in some ways, the Portable is defective.
After All the Checkings or Repairing
1. Re-register the checked Handset to the checked Base Unit, and Regular HS to Regular BU.
Base Unit is defective
Note:
If you need to register a handset, refer to Registering a Handset to a Base Unit in the Operating Instructions.
No
Registration of
Regular Portable to
Base Unit
Yes
(other checkings)
Registration of Regular Portable to Regular BU
Registration of Portable to Base Unit
START
Registration of
Portable to
Regular BU
Yes
(checked ones)
35
KX-TG9581B/KX-TG9582B/KX-TGA950B
No
Portable is defective