Panasonic KX-TG4221N, Service Manual

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KX-TG4221N/KX-TG4222N/KX-TG4223N/KX-TG313SK/KX-TG4224N/KX-TG4225N/KX-TGA421N
10.1.9. Check Handset Transmission
Cross Reference:
Signal Route (P.23)
10.1.10. Check Handset Reception
Cross Reference:
Signal Route (P.23)
Note:
When checking the RF part, Refer to Check the RF part
(P.37).
10.1.11. Check Caller ID
Cross Reference:
Telephone Line Interface (P.15)
Calling Line Identification (Caller ID)/Call Waiting Caller
ID
(P.17)
Note:
• Make sure the format of the Caller ID service of the
Telephone company that the customer subscribes to.
• It is also recommended to confirm that the customer is really
a subscriber of the service.
Check MIC of handset.
Check handset Tx in Signal Route .
Check s pe a ker of h a nd s et.
Check h a nd s et Rx in S i g nal Route .
YE S
Did b ell ring?
(Me ssa ge indic a tor
b link s )
Check Callin g Line Identification (Caller ID)/
Call Waitin g Caller ID.
Check b ell s ign a l detection in
Telephone Line Interface .
BA S E UNIT
NO