Circuit Operations; Key Input Control Circuit - Panasonic KX-T7665AL Service Manual

KX-T7665AL / KX-T7665X

10 CIRCUIT OPERATIONS

10.1. KEY INPUT CONTROL CIRCUIT

The key data is under the matrix control by 20 to 23(KEYOUT) and 28 to 35(KEYIN) of IC6.
The key information outputted from KEYOUT is inputted into KEYIN, when the key is pressed.
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