Read Panasonic KX-NT346RU (serv.man2) Service Manual online
11
KX-NT346RU/KX-NT346RU-B
4.2.7.
Key Input Control Circuit
The key data is under the matrix control by IC4.
The key information outputted from KEYOUT is inputted into KEYIN, when the key is pressed.
The key information outputted from KEYOUT is inputted into KEYIN, when the key is pressed.
The HOOK key is independent from Key Scan Matrix and taken into the port singularly.
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