Sony HCD-EP707 - IC PIN FUNCTION DESCRIPTION

31
HCD-EP707
5-15. IC PIN FUNCTION DESCRIPTION
• DISPLAY BOARD IC101 µPD780206GF-127-3BA (SYSTEM CONTROLLER)
Pin No. Pin Name I/O Description
1 VDD3
—Power supply terminal (+4.2V)
2 POWER O
Power on/off control signal output terminal “L”: standby, “H”: power on
3
MUTE
O
Muting on/off control signal output terminal “H”: active
4
PLL-CE O PLL chip enable signal output to the FM/AM PLL “H” active
5
SOUND ENABLE
OSound enable signal output terminal Not used
6
PRO-LOGIC-
ENABLE
OPro logic enable signal output terminal Not used
7
DAW M– O Drawer motor drive signal output terminal “L”: active
8 STROBE
OStrobe signal output for the function select IC
9
CD-RESET O Reset signal output to the CD block “L”: reset
10
RESET I Reset signal input from the reset switch “L”: reset
11
X2 O System clock output terminal (4.19MHz)
12 X1 I
System clock input terminal (4.19MHz)
13 IC (VPP) —
Connected to granud
14, 15 NC
—Not used
16 VDD2
—Power supply terminal (+4.2V)
17 CLK O
Serial data transfer clock signal output to the function select IC
18 DATA OUT O
Serial data output to the function select IC
19 DATA IN I
Serial data input from the FM/AM PLL
20
CAR M+ O Carriage motor drive signal output terminal “L”: active
21
CAR M– O Carriage motor drive signal output terminal “L”: active
22 EEPROM CLK O
Serial data transfer clock signal output to the EEPROM and input select IC
23 EEPROM DATA I/O
Two-way data bus with the EEPROM and input select IC
24
DAW M+ O Drawer motor drive signal output terminal “L”: active
25
AVSS — Ground terminal (for A/D converter)
26 RDS DATAIN I
RDS serial data input terminal Not used
27
TUNER STATION
ITuning detection signal input from the LA1823 “L”: tuned, “H”: detuned
28 AMS I
Automatic music sensor detection signal input terminal
29
KEY5 I Key input terminal (A/D input)
30
KEY4 I Key input terminal (A/D input) Not used
31 to 33
KEY3 to KEY1 I Key input terminal (A/D input)
34 AVDD
—Power supply terminal (for A/D converter) (+4.2V)
35
AVREF
I
Reference voltage (+4.4V) input terminal (for A/D converter)
36 CD CLK O
Serial data transfer clock signal output to the CD block
37 RDS CLKIN
I RDS serial data transfer clock signal input terminal Not used
38
PWDET I Power failure detection signal input terminal “L”: power failure, “H”: power on
39
REMIN I Remote control signal input from the remote control receiver
40
VSS — Ground terminal
41 CD-DATA O
Serial data output to the CD block
42
ENCODER A I Jog dial pulse input from the rotary encoder (A phase input)
43
ENCODER B I Jog dial pulse input from the rotary encoder (B phase input)
44
REC IN I Tape play/rec detect sensor input terminal “L” input when the tape play/rec detect
45 NC
—Not used
46 VDD1
—Power supply terminal (+4.2V)
47 CAR EX
I Switch input from the CD block “H”: when elevator is moving