Sony HCD-C770 Service Manual page 104

HCD-C770/C990
QQ
3 7 63 1515 0
• DVD BOARD IC906 PT3000 (CHANGER CONTROLLER (ROTARY ENCODER) )
Pin No. Pin Name
1 VSS
2 RESET
3 CLK
4 LAT
5 to 8 P15 to P12
9 to 12 P11 to P8
13 LATCHO
14 CLKO
15 DO1
16 DI2
17 to 24 P7 to P0
25 DO2
26 DI1
27 PULLUP
28 VCC
TE
L 13942296513
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104
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I/O
— Ground terminal
I
Reset signal input from the system controller
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)
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y
i
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8
Description
"L": reset
Q Q
3 6 7 1 3
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2 9 9 4 2 8
1 5 0 5 8 2 9 9 4
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9 9
2 8 9 9