33
KX-TG4221N/KX-TG4222N/KX-TG4223N/KX-TG313SK/KX-TG4224N/KX-TG4225N/KX-TGA421N
10.1.2. Check Record
10.1.2.1. Base Unit
A) Not record Incoming Message
Cross Reference:
Signal Route (P.23)
Telephone Line Interface (P.15)
Parallel Connection Detect Circuit/Auto Disconnect
Circuit (P.16)
Note:
Flash Memory is IC601.
BBIC is IC501.
Check Bell signal.
OK
Check Telephone Line Interface
[Bell].
Does the unit catch line?
YES
Check Telephone Line Interface
[OFF HOOK].
Check Line In: Pin 16 of BBIC. Check ICM Recording in Signal Route.
NO
OK
Check Auto Disconnect Circuit.
OK
Check Parallel Connection Detection
Circuit.
OK
Check BBIC and Flash Memory.
NO
NO
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