Read Sony CMT-HX30 / HCD-HX30 Service Manual online
HCD-HX30
45
MAIN BOARD IC301 M3062LFGPFP-710 (SYSTEM CONTROLLER)
Pin No.
Pin Name
I/O
Description
1 to 3
CD BUS2 to CD BUS0
O
Serial data output to the CD-MP3 processor
4
SIRCS
I
SIRCS signal input from the remote control receiver
5
DEC BUS SEL2
O
Data selection signal output terminal Not used
6
DEC BUS SEL1
O
Data selection signal output terminal
7
S-MASTER SOFT
MUTE
O
Soft muting control signal output to the stream processor
8
BYTE
I
External data bus width selection signal input terminal
9
CN VSS
I
Processor mode switch input terminal (for test)
10
XCIN
I
Sub system clock input terminal (32.768 kHz)
11
XCOUT
O
Sub system clock output terminal (32.768 kHz)
12
RESET
I
System reset signal input from the reset signal generator "L": reset
For several hundreds msec. after the power supply rises, "L" is input, then it changes to "H"
For several hundreds msec. after the power supply rises, "L" is input, then it changes to "H"
13
XOUT
O
Main system clock output terminal (5 MHz)
14
VSS
-
Ground terminal
15
XIN
I
Main system clock input terminal (5 MHz)
16
VCC
-
Power supply terminal (+3.3V)
17
NMI
I
Non-maskable interrupt signal input terminal Not used
18
RDS INT
I
RDS data transfer clock signal input from the tuner (FM/AM)
19
SBSY
I
Subcode block sync signal input from the CD-MP3 processor
20
AC CUT
I
AC cut on/off detection signal input terminal "L": AC cut on
21
CD ON
O
Power on/off control signal output terminal for CD section "H": power on
22
CD DRIVE MUTE
O
Muting signal output to the coil/motor driver
23
CD CLK
O
Serial data transfer clock signal output to the CD-MP3 processor
24
CD CCE
O
Chip enable signal output to the CD-MP3 processor
25
CD XRST
O
Reset signal output to the CD-MP3 processor "L": reset
26
MP3 IREQ
I
Request signal input from the CD-MP3 processor
27
USB RESET
O
Reset signal output to the USB controller "L": reset
28
USB POWER
O
Power on/off control signal output terminal for USB section "H": power on
29
IIC CLK
I/O
Two-way IIC clock bus terminal Not used
30
IIC DATA
I/O
Two-way IIC data bus terminal Not used
31
BT_DOUT/DAB TXD
O
Serial data output terminal for bluetooth or DAB tuner section Not used
32
BT_DIN/DAB RXD
I
Serial data input terminal for bluetooth or DAB tuner section Not used
33
S-MASTER LATCH
O
Serial data latch pulse signal output to the stream processor
34
BT_RTS
O
Ready to send signal output terminal for bluetooth section Not used
35
USB TXD/SAT TXD
O
Serial data output to the USB controller
36
USB RXD/SAT RXD
I
Serial data input from the USB controller
37
USB_CTS
I
Clear to send signal input from the USB controller
38
USB_RTS
O
Ready to send signal output to the USB controller
39
S-MASTER INIT
O
Initialize signal output to the stream processor
40
S-MASTER
NSP MUTE
NSP MUTE
O
NSP muting control signal output to the stream processor
41
PULL DOWN
O
Connected to the ground
42
S-MASTER SHIFT
O
Serial data transfer clock signal output to the stream processor
43
S-MASTER DATA
O
Serial data output to the stream processor
44
S-MASTER SD
I
Shut down signal input from the digital power amplifi er "L": shut down
45
S-MASTER RST
O
Reset signal output to the digital power amplifi er "L": reset
46
PULL UP
O
Connected to the power supply
47
S-MASTER PG MUTE
O
PG muting control signal output to the stream processor
48
CDM LOAD OUT
O
Loading motor control signal output terminal (for loading out)
49
CDM LOAD IN
O
Loading motor control signal output terminal (for loading in)
50
CDM OPEN SW
I
Disc tray open position detection signal input terminal
51
CDM CLOSE SW
I
Disc tray close position detection signal input terminal
52
HP MUTE
O
Headphone muting on/off control signal output terminal "H": muting on
53
BT AUD OUT MUTE
O
Blutetooth muting on/off control signal output terminal Not used
54
TA LINE-MUTE
O
Line muting on/off control signal output terminal "H": muting on
55
AMP DATA
O
Serial data output to the electrical volume
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