Sony HCD-EC69i Service Manual page 44

HCD-EC69i/EC79i/EC99i
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
5 I-CDM-CLOSE
6 NC
I-CDM-OPEN/
7
CDM-OPEN_CLOSE
8 O-CDM-M+/NC
9 I-RMC
10 O-CDM-M-/NC
11 5V-ON
12 NC
13 X0A
14 X1A
15 VCC
16 VSS
I/O-CD-BUS0 to
17 to 20
I/O-CD-BUS3
21, 22 NC
23 O-DR-MUTE
24 I-REQ
25 O-CD-BUCK
26 O-CD-CCE
27 O-CD-RST
28 O-LED
29 I-iPod-TXD
30 SCLK
31 O-iPod-RXD
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-iPod-DET
46 I-MODEL
47 I-SUFFIX
48 I-TU-DO
49, 50 NC
51 to 53 MD2 to MD0
54 I-RST
55 O-TU-CE
56 O-TU-DI
57 O-TU-CLK
58 VLCD
44
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 (EC99i)
O Main power on/off control signal output terminal
O CD power on/off control signal output terminal
I Detection switch input from the CD mechanism section (EC79i: UK, Australian/EC99i)
- Not used
Detection switch input from the CD lid opn/close detect switch (EC69i/EC79i: US, Canadian
I models), or Detection switch input from the CD mechanism section (EC79i: UK, Australian/
EC99i)
O Motor drive signal output terminal (EC79i: UK, Australian/EC99i)
I Remote control signal input from the remote control receiver
O Motor drive signal output terminal (EC79i: UK, Australian/EC99i)
O VBUS power supply on/off control signal output terminal
- Not used
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
- Not used
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 Serial data input from the iPod connector
- Not used
O Serial data output to the iPod connector
- 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 iPod detection signal input terminal
I Model setting terminal
I Suffi x setting terminal
I Serial data input from the AM/FM DET
- Not used
- 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
Description
"H": main power on
"H": CD power on
"L": reset
"L": reset