Sony HCD-BX50BTi Service Manual page 48

HCD-BX20i/BX50BTi
MAIN BOARD IC301 R5F3640DDFA (SYSTEM CONTROLLER)
Pin No. Pin Name
1 to 3 CD BUS2 to CD BUS0
4 SIRCS
5 STBY-RELAY
6 TUNER TUNED
7 RDS DATA
8 BYTE
9 CN VSS
10 XCIN
11 XCOUT
12 RESET
13 XOUT
14 VSS
15 XIN
16 VCC
17 NMI
18 RDS INT
19 SBSY
20 AC CUT
21 NC
22 AMP CLOCK
23 TA LINE MUTE
24 AMP DATA
25 ST CE
26 DATA IN/STEREO
27 ST CLK
28 ST DATA OUT
29 IIC CLK
30 IIC DATA
31 BT DOUT
32 BT DIN
33 BT CTS
34 BT_RTS
35 USB TXD
36 USB RXD
37 NC
38 USB RTS
39 SEL A
40 INH
41 PULL DOWN
42 NC
43 BT AUDIO OUT MUTE
44 BT_AV_ ROLE
45 BT_RESET
46 PULL UP
47 DAB TXD
48 DAB RXD
49, 50 NC
51 DAB POWER 1.2V
52 DAB-POWER 3.3V
53
STK-ON
54 to 56 NC
57 CD ON
58 USB POWER
59 CD RESET
48
I/O
O Serial data output to the CD-MP3 processor
I
SIRCS signal input from the remote control receiver
O
Power on/off control signal output terminal
I
Tuning detection signal input from the tuner (FM/AM)
I RDS data input from terminal
I External data bus width selection signal input terminal
I
Processor mode switch input terminal (for test)
I
Sub system clock input terminal (32.768 kHz)
O
Sub system clock output terminal (32.768 kHz)
System reset signal input from the reset signal generator
I
For several hundreds msec. after the power supply rises, "L" is input, then it changes to "H"
O
Main system clock output terminal (5 MHz)
- Ground terminal
I Main system clock input terminal (5 MHz)
-
Power supply terminal (+3.3V)
I
Non-maskable interrupt signal input terminal
I
RDS data transfer clock signal input terminal
I Subcode block sync signal input from the CD-MP3 processor
I AC cut on/off detection signal input terminal
O
Not used
O
Serial data transfer clock signal output to the electrical volume
O
Line muting on/off control signal output terminal
O Serial data output to the electrical volume
O
Chip enable signal output to the tuner (FM/AM)
I
Serial data and stereo detection signal input from the tuner (FM/AM)
O
Serial data transfer clock signal output to the tuner (FM/AM)
O
Serial data output to the tuner (FM/AM)
I/O Two-way IIC clock bus terminal
I/O
Two-way IIC data bus terminal
O
Serial data output to the bluetooth module (BX50BTi)
O
Serial data input from the bluetooth module (BX50BTi)
I
Clear to send signal input from the bluetooth module (BX50BTi)
O Ready to send signal output to the bluetooth module (BX50BTi)
O
Serial data output terminal
I
Serial data input terminal
O
Not used
O
Ready to send signal output terminal
O Input selection control signal output terminal (BX50BTi)
O
Input selection control signal output terminal (BX50BTi)
O
Connected to the ground
O
Not used
O
Blutetooth muting on/off control signal output terminal
O Transmission/reception mode notifi cation signal output to the bluetooth module (BX50BTi)
O
Reset signal output to the bluetooth module
O
Connected to the power supply
O
Serial data output terminal for DAB section
I
Serial data input terminal for DAB section
O Not used
O
Power supply (+1.2V) on/off control signal output terminal for DAB section
O
Power supply (+3.3V) on/off control signal output terminal for DAB section
O Standby control signal output to the power amplifi er
O Not used
O
Power on/off control signal output terminal for CD section
O
Power on/off control signal output terminal for USB section
O
Reset signal output to the CD-MP3 processor
Description
"H": power on
Not used
Not used
Not used
"L": AC cut on
"H": muting on
Not used
Not used
Not used
Not used
Not used
"H": muting on (BX50BTi)
"L": reset (BX50BTi)
Not used
Not used
"L": reset
"L": reset
Not used
Not used
"H": power on
Not used