Read Panasonic KX-T7730UA (serv.man3) Service Manual Supplement online
10
KX-T7730UA
1.5.
CIRCUIT OPERATIONS
1.5.1.
KEY INPUT CONTROL CIRCUIT
Change from the Original Service Manual Section 9.1.
Sequential input information is executed by dynamic scanning.
The ports P3_1, P3_6, P8_4~6, P8_1 of IC1 are brought to hifh status consecutively.
If a key is pressed, the key-in information input is executed by ports P2_1~7, P6_1~2.
Sequential input information is executed by dynamic scanning.
The ports P3_1, P3_6, P8_4~6, P8_1 of IC1 are brought to hifh status consecutively.
If a key is pressed, the key-in information input is executed by ports P2_1~7, P6_1~2.
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