Sony HCD-C770 - Page 106

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