36
KX-TG7841/KX-TG7842/KX-TG7843/KX-TG7844/KX-TG7845/KX-TG365SK/KX-TG7871/KX-TG7872/KX-TG7873/KX-TG7874/KX-TG7875/KX-TG385SK/KX-TGA680
10.1.2.
Check Record
10.1.2.1. Base Unit
Not record Incoming Message
Cross Reference:
Signal Route
(P.26)
Telephone Line Interface
(P.17)
Parallel Connection Detect Circuit/Auto Disconnect
Circuit
(P.18)
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 25 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