Sony CMT-HPZ7 Service Manual page 84

HCD-HPZ7/HPZ9
MAIN BOARD IC306 M30624MGP-A39FPU0 (SYSTEM CONTROLLER)
Pin No. Pin Name
1 CD DISCSENS 2
2 CD DISCSENS 1
3 STBY LED
4 SIRCS IN/WAKE
5 MP3 DATA OUT
6 MP3 DATA IN
7 MP3 CLK
8 BYTE
9 CNVSS
10 XCIN
11 XCOUT
12 RESET
13 XOUT
14 VSS
15 XIN
16 VCC
17 NMI
18 RDS-CLK
19 CD SCOR
20 AC-CUT
21 RDS DATA
22 CD XRST
23 CD XLT
24 MP3 ACK
25 MP3 XLAT
26 MP3 REQ
27 MP3 IREQ
28 MP3 STB
29 IIC CLK
30 IIC DATA
31 SDA
32 SCL
33 XTCN
34 CD BD POWER
35 CD DATA
36 CD SENS
37 CD CLK
38 CD AMUTE
39 FL DATA
40 ELV E3/TRE A
41 ELV E2/TRE B
42 ELV E1/BASS A
43 ELV E0/BASS B
44 SW4 (8CM)
45 SW3 (PUSH-CLOSE)
46 SW2-1 (CLOSE)
47 SW2-2 (LOD POSITION)
48 SW1 (OPEN)
82
I/O
I DISC 4, 5 and DISC (+1) detect signal input
I DISC 1 to 3 detect signal input
O LED drive signal output terminal (power)
I SIRCS signal input terminal
O Serial data output to the MP3 decoder
I Serial data input from the MP3 decoder
O Serial data transfer clock signal output to the MP3 decoder
I External data bus width select signal input terminal (fixed "L")
— Ground terminal
I Sub system clock input terminal (32.768 kHz)
O Sub system clock output terminal (32.768 kHz)
System reset signal input terminal
I
after the power supply rises, "L" is input, then it changes to "H"
O Main system clock output terminal (16 MHz)
— Ground terminal
I Main system clock input terminal (16 MHz)
— Power supply terminal (+3.3V)
I Non-maskable interrupt signal input terminal (Not used)
I RDS serial data transfer clock signal input terminal (only for AEP, UK, CET models)
I Subcode Q data request signal input terminal
I Power down detection signal input terminal
I RDS serial data input terminal (only for AEP, UK, CET models)
O System reset signal output to the RF AMP
O Latch pulse signal output to the RF AMP
I Acknowledge signal input from the MP3 decoder
O Serial data latch pulse output to the MP3 decoder
O Data transfer request signal output to the MP3 decoder
I Data transfer request signal input from the MP3 decoder
O Standby signal output to the MP3 decoder
I/O IIC data transfer clock signal input and output (Not used)
I/O IIC two-way data bus
O SDA signal output
O SCL signal output
O Oscillator control signal output to the CD DSP
O Power on/off control signal output for CD block
O Serial data output to the CD DSP
I Internal status (SENSE) input from the CD DSP
O Serial data transfer clock signal output to the CD DSP
O CD muting on/off control signal output terminal
O Serial output to the FL/LED driver
I ELV pulse input from the rotary encoder
I ELV dial pulse input from the rotary encoder
I ELV dial pulse input from the rotary encoder
I ELV dial pulse input from the rotary encoder
I CD disc size detection (8cm) signal input terminal
I CD push-close switch input terminal
I CD close switch input terminal
I CD loading position switch input terminal
I CD open switch input terminal
Description
"L": reset For several hundreds msec.
"L": power down
(Not used)