Sony HCD-EC69 Service Manual page 43

PANEL BOARD IC301 MB90F830PF-GE1 (SYSTEM CONTROLLER)
Pin No. Pin Name
1 SEG32
O-SP-RELAY-ON/
2
TC ON/SW ON
3 O-POWER
4 O-CD-ON/5V ON
I-3CD-SW3 to
5 to 7
I-3CD-SW1
8 O-3CD-M1+
9 I-RMC
O-3CD-M1-, O-3CD-
10 to 12
M2+, O-3CD-M2-
13 X0A
14 X1A
15 VCC
16 VSS
I/O-CD-BUS0 to
17 to 20
I/O-CD-BUS3
I-3CD-CHACK,
21, 22
I-3CD-STOCK
23 O-DR-MUTE
24 I-REQ
25 O-CD-BUCK
26 O-CD-CCE
27 O-CD-RST
28 O-LED
29 I-USB-BUSY
30 O-TP_REC_MUTE
31 O-USB-RST
32 AVCC
33 O-AUDIO-DATA
34 O-AUDIO-CLK
35 AVSS
36 I-P-MONI
37, 38 I-KEY1, I-KEY2
39 I-TU-ANSD
40 I-5V/9V-DET
41 I-KEY-WAKE-UP/VOL
42 I-HOLD
43 O-CD-SBSY
44 GND
45 I-3CD-CLOSE/OPEN
46 I-MODEL
47 I-SUFFIX/TP-STATE
48 I-TU-DO
49 I/O-I2C-DATA-USB
50 I/O-I2C-CLK-USB
51 to 53 MD2 to MD0
54 I-RST
55 O-TU-CE
56 O-TU-DI
57 O-TU-CLK
58 VLCD
59 to 62 COM0 to COM3
63, 64 SEG0, SEG1
65 VCC
66 VSS
I/O
O Segment drive signal output to the liquid crystal display
Relay drive signal output terminal (for speaker), and subwoofer function on/off control signal
O
output terminal (EC99)
O Main power on/off control signal output terminal
O CD and VBUS power on/off control signal output terminal
I Detection switch input from the CD mechanism deck
O Motor drive signal output to the CD mechanism deck
I Remote control signal input from the remote control receiver
O Motor drive signal output to the CD mechanism deck
I Sub system clock input terminal (32.768 kHz)
O Sub system clock output terminal (32.768 kHz)
- Power supply terminal (+3.3V)
- Ground terminal
O Serial data output to the CD-MP3 processor
I Detection switch input from the CD mechanism deck
O Motor drive on/off control signal output to the motor/coil driver
I Request signal input from the CD-MP3 processor
O Serial data transfer clock signal output to the CD-MP3 processor
O Chip enable signal output to the CD-MP3 processor
O System reset signal output to the CD-MP3 processor
O LED drive signal output terminal for standby indicator
I Busy signal input from the USB controller
O Not used
O System reset signal output to the USB controller
- Power supply terminal (+3.3V)
O Serial data output to the electrical volume
O Serial data transfer clock signal output to the electrical volume
- Ground terminal
I Power monitor signal input terminal
I Front panel key input terminal (A/D input)
I Auto gain control signal input terminal
I Power supply voltage detection signal input terminal
I Front panel key input terminal (A/D input)
I Hold signal input terminal
I Subcode block sync signal input from the CD-MP3 processor
- Ground terminal
I Detection switch input from the CD mechanism deck
I Model setting terminal
I Suffi x setting terminal
I Serial data input from the AM/FM DET
I/O Serial data input/output with the USB controller
O Serial data transfer clock signal output to the USB controller
- Not used
I Reset signal input from the reset switch
O Chip enable signal output to the AM/FM DET
O Serial data output to the AM/FM DET
O Serial data transfer clock signal output to the AM/FM DET
Terminal for doubler circuit capacitor connection to develop liquid crystal display drive volt-
-
age
O Common drive signal output to the liquid crystal display
O Segment drive signal output to the liquid crystal display
- Power supply terminal (+3.3V)
- Ground terminal
HCD-EC69/EC79/EC99
Descriptio
"H": main power on
"H": CD and VBUS power on
"L": reset
"L": reset
"L": reset
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