Sony HCD-FL5D - Page 111

111
HCD-FL5D
• GC BOARD IC201 MB90M407PF-G-123-BND
(FLUORESCENT INDICATOR TUBE DRIVER, KEY CONTROL, CD/DVD MECHANISM DECK CONTROLLER)
Pin No. Pin Name I/O Description
1 to 8 G17 to G24 O
Grid drive signal output to the fluorescent indicator tube
9, 10 A36, 35 —
Segment drive signal output to the fluorescent indicator tube
11 VSS-(IO) O
Ground terminal (for I/O port)
12 to 22 A34 to A24 O
Segment drive signal output to the fluorescent indicator tube
23 VDD-(VFT) —
Power supply terminal (+3.3V) (for fluorescent indicator tube)
24 to 41 A23 to A6 O
Segment drive signal output to the fluorescent indicator tube
42 VSS-(IO) —
Ground terminal (for I/O port)
43 to 47 A5 to A1 O
Segment drive signal output to the fluorescent indicator tube
48 VKK-(VFT) —
Power supply terminal (–38V) (for fluorescent indicator tube)
49 to 51
MODE0 to
MODE2
I
Setting terminal for the CPU operational mode
52
DOOR
MOTOR +
O
CD/DVD door open/close motor drive signal output
53
DOOR
MOTOR –
O
CD/DVD door open/close motor drive signal output
54 LOD-POS O
Loding motor drive signal output
55
LOD-NEG/
XHOLD
O
Loding motor drive signal output
56 EXP-LAT O
Serial data latch pulse output to the front panel controller
57 to 59 ENC2 to ENC0 O
Rotary encoder pulse input terminal
60 IIC DATA I/O
IIC two-way data bus with the system controller
61 IIC CLOCK I
IIC data reading clock signal input from the system controller
62
AVCC-(ANALOG)
—
Power supply terminal (+3.3V) (for A/D conversion)
63
AVSS-(ANALOG)
—
Ground terminal (for A/D conversion)
64 to 66 KEY0 to KEY2 I
Key input terminal (A/D input)
67 OUT SW I
Detection input from the tray open/close detect switch
“L”: when tray is open, “H”: when tray is close
68 MIDOUT SW
I
Detection input from the mid out detect switch
“L”: when tray is going to open or close
69 IN SW
I
Detection input from the tray open/close detect switch
“L”: when tray is close, “H”: when tray is open
70 MIDIN SW
I
Detection input from the mid in detect switch
“L”: when sub tray move between tray and stocker
71 CLP-POS
O Elevator up/down motor (M701) control signal output
72
CLP-NEG
O
Elevator up/down motor (M701) control signal output
73 INIT SW
I
Detection input from the INIT detect switch
“L”: when elevator down to bottom, others: “H”
74 CNT SW
I
Detection input from the count detect switch
“L”: when elevator up/down each sub tray stock position
75
EXP-IN DATA I Serial data input from the front panel controller
76
EXP-CLK
O
Serial data transfer clock signal output to the front panel controller
77
RESET I Reset signal input from the system controller
78
EXP-OUT DATA O
Serial data output to the front panel controller
79 DISC-SENS I
Detection input from the disc in detect sensor “H”: disc detected
80 PRTC-SW
I
Detection input from the CD/DVD tray door open/close detect switch
“L”: when CD/DVD lid is open, “H”: when CD/DVD lid is close