Sony HCD-C990 Service Manual - Page 106
Dvd Board, Ic906, Pt3000 Changer Controller Rotary Encoder
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Page 106 highlights
HCD-C770/C990 • DVD BOARD IC906 PT3000 (CHANGER CONTROLLER (ROTARY ENCODER) ) Pin No. 1 2 3 4 5 to 8 9 to 12 13 14 15 16 17 to 24 25 26 27 28 Pin Name VSS RESET CLK LAT P15 to P12 P11 to P8 LATCHO CLKO DO1 DI2 P7 to P0 DO2 DI1 PULLUP VCC I/O Description - Ground terminal I Reset signal input from the system controller "L": reset I Serial data transfer clock signal input from the changer controller (motor, switch) I Serial data latch pulse signal input from the changer controller (motor, switch) I Stocker position detect rotary encoder input terminal I Mode detect rotary encoder input terminal O Serial data latch pulse signal output terminal Not used O Serial data transfer clock signal output terminal Not used O Serial data output terminal Not used I Serial data input from the changer controller (motor, switch) O Not used O Serial data output to the system controller I Serial data input from the changer controller (motor, switch) - Connected to power supply (+5V) - Power supply terminal (+5V) 106
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