62
MEX-BT5000
MAIN BOARD IC501 MB90F488BPFV-G-9012-SPE1 (SYSTEM CONTROLLER)
Pin No.
Pin Name
I/O
Description
1
NC
-
Not used
2
VOL_ATT
O
Muting on/off control signal output to the audio select "L": muting on
3
NOSE_SW
I
Front panel remove/attach detection signal input terminal
"L": front panel is attached
4
NC
-
Not used
5
BEEP
O
Beep sound drive signal output terminal
6
DIAG
I
Diagnostic signal input from the power amplifier IC
7
IT_FSW_IN
I
DC/DC converter oscillation frequency count input terminal for bluetooth section
8
FSW_IN
I
DC/DC converter oscillation frequency count input terminal for fluorescent indicator tube section
9
VSS
-
Ground terminal
10
TUNATT
O
Tuner muting on/off control signal output terminal
11, 12
NC
-
Not used
13, 14
SIGNAL_SW0,
SIGNAL_SW1
O
Audio signal output select signal output terminal
15
NC
-
Not used
16
AUX_BUS
O
Ground switching signal output of SONY bus/AUX audio input
"L": AUX input, "H": SONY bus input
17
NSMASK
O
Discharge control signal output for the noise detection circuit
"H": discharge (AEP, UK models only)
18
GUI_RST
O
Reset signal output to the bluetooth controller, data bus interface and flash rom
19
ATT
O
Muting on/off control signal output terminal
20
SYSRST
O
Reset signal output to the SONY bus interface IC and CD system control
21
VCC5
-
Power supply terminal (+3.3V)
22
EESIO
I/O
Two-way data bus with the tuner unit
23
EECKO
O
Serial data transfer clock signal output to the tuner unit
24
AMPSTB
O
Standby control signal output to the power amplifier IC
25
GUI_RX
I
Serial data input from the bluetooth controller
26
GUI_TX
O
Serial data output to the bluetooth controller
27
MAS_PW
O
State notification signal output to the bluetooth controller "H": state that can be communicated
28
GUI_PW
I
State notification signal input from the bluetooth controller "H": state that can be communicated
29, 30
RE_IN0,
RE_IN1
I
Joystick pulse input from the rotary encoder
31
I2CCKO
O
IIC data transfer clock signal output terminal
32
I2CSIO
I/O
IIC two-way data bus
33
AVCC
-
Power supply terminal (+3.3V)
34
AVRH
I
Reference voltage (+3.3V) input terminal (for A/D conversion)
35
AVSS
-
Ground terminal
36
QUALITY
I
Noise level detection signal input at SEEK mode
37
VSM
I
FM and AM signal-meter voltage detection signal input from the tuner unit (A/D input)
38
NC
-
Not used
39
KEYIN0
I
Front panel key input terminal (A/D input)
40
VSS
-
Ground terminal
41
RC_IN0
I
Rotary remote commander key input terminal (A/D input)
42 to 46
NC
-
Not used
47 to 49
MD0 to MD2
I
Setting terminal for the CPU operational mode
Summary of Contents for XPlod MEX-BT5000
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