Read Sony MEX-XB100BT Service Manual online
MEX-XB100BT
49
• IC Pin Function Description
MAIN BOARD IC503 R7S7200032CFP (SYSTEM CONTROLLER)
Pin No.
Pin Name
I/O
Description
1
NC
-
Not used
2
AMP_ATT
O
Amplifi er muting on/off control signal output to the power amplifi er “H”: muting on
3
AMPSTB
O
Standby signal output to the power amplifi er “L”: standby
4
SERVO_ON
O
Power on/off control signal output to the servo section “H”: power on
5
SP_CLK
O
Serial data transfer clock signal output to the audio DSP
6
SP_DATA
I
Serial data input from the audio DSP
7
Vcc
-
Power supply terminal (+1.18V) (for internal)
8
DEC_XMUTE
O
Muting on/off control signal output to the audio DSP “L”: muting on
9
Vss
-
Ground terminal
10
CD_ZDET
I
Zero data detection signal input from the audio DSP
11
PVcc
-
Power supply terminal (+3.3V) (for I/O)
12
BSIF_GATE
O
Gate signal output to the audio DSP
13
DEC_INT
I
Interrupt signal input from the audio DSP
14
DSP_RST
O
Reset signal output to the audio DSP “L”: reset
15
DSP_SSTBY
O
Standby signal output to the audio DSP “L”: standby
16
BSIF_ST_REQ
I
Request signal input from the audio DSP
17
CD_BUSCLK
O
Serial data transfer clock signal output to the audio DSP
18
Vss
-
Ground terminal
19
CD_XCCE
O
Chip enable signal output to the audio DSP
20
CD_SDO
O
Serial data output to the audio DSP
21
Vcc
-
Power supply terminal (+1.18V) (for internal)
22
CD_SDI
I
Serial data input from the audio DSP
23
Vss
-
Ground terminal
24
BSIF_BCK
O
Bit clock signal output to the audio DSP
25
PVcc
-
Power supply terminal (+3.3V) (for I/O)
26
BSIF_LR
O
L/R sampling clock signal output to the audio DSP
27
BSIF_DO
O
Audio data output to the audio DSP
28
BEEP
O
Beep sound drive signal output to the power amplifi er
29
DEC_BCK_IN
I
Bit clock signal input from the audio DSP
30
DEC_LRCK_IN
I
L/R sampling clock signal input from the audio DSP
31
Vss
-
Ground terminal
32
DEC_SDOUT_F
O
Audio data output to the audio DSP
33
DEC_SDIN_CH0
I
Audio data input from the audio DSP
34
Vcc
-
Power supply terminal (+1.18V) (for internal)
35
LCD_CLK
O
Serial data transfer clock signal output to the front panel block
36
Vss
-
Ground terminal
37
NC
-
Not used
38
LCD_CE
O
Chip enable signal output to the front panel block
39
PVcc
-
Power supply terminal (+3.3V) (for I/O)
40
LCD_DO
O
Serial data output to the front panel block
41
MEC_EJECT
O
Loading motor drive signal (eject direction) output terminal “H”: motor on
42
SYNC_OUT
O
Frequency control signal output to the regulator and DC/DC converter
43
DEBUG_TX
O
Transmit data output terminal for the debug Not used
44
LRCK_INT
I
L/R sampling clock signal input from the pin 26 (BSIF_LR)
45
ACC_IN
I
Accessory power detection signal input terminal “L”: accessory power on
46
Vss
-
Ground terminal
47
DRV_ON
O
Driver control signal output to the CD mechanism deck block
48
XM_TX
O
Serial data output to the SIRIUSXM in connector (US and Canadian models only)
49
KEY_ACK1
I
Key acknowledge signal (wake up signal) input from the front panel block
50
PVcc
-
Power supply terminal (+3.3V) (for I/O)
51
MEC_INSW
I
Disc insert detection switch input terminal
52
BT_CLK
I
Serial data transfer clock signal input from the BT module
53
BT_SYNC
I
Sync signal input from the BT module
54
BT_DOUT
O
Audio data output to the BT module
55
BT_DIN
I
Audio data input from the BT module
56
BU_IN
I
Back-up power detection signal input terminal “L” is input at low voltage
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