Sony MEX-BT5700U / MEX-BT5750U Service Manual ▷ View online
MEX-BT5700U/BT5750U
41
• IC Pin Function Description
MAIN BOARD IC501 MB90F883AHPMC-GE1-411A (SYSTEM CONTROLLER)
Pin No.
Pin Name
I/O
Description
1
NOSE_SW
I
Front panel remove/attach detection signal input terminal “L”: front panel is attached
2
FL_ON
O
Power on/off control signal output to the DC/DC converter section
3
DOOR_SW
I
Front panel remove/attach detection signal input terminal “L”: front panel is attached
4
DOOR_IND
O
LED drive signal output terminal “H”: LED on
5
FSW_IN
I
DC/DC converter oscillation frequency count signal input terminal
6
NCO
-
Not used
7
I2C_SIO
I/O
IIC two-way data bus
8
I2C_CLK
O
IIC data transfer clock signal output terminal
9, 10
RE-IN0, RE-IN1
I
Jog dial pulse input from the rotary encoder
11
X0A
I
Sub system clock input terminal (32.768 kHz)
12
X1A
O
Sub system clock output terminal (32.768 kHz)
13
VCC5
-
Power supply terminal (+3.3V)
14
VSS
-
Ground terminal
15
C
-
Regulator reference capacitor connecting terminal
16
UNI_SI
I
SONY bus data input terminal
17
UNI_SO
O
SONY bus data output terminal
18
UNI_SCK
O
SONY bus clock signal output terminal
19
BTU_RX
I
Serial data input from the Bluetooth section
20
BTU_TX
O
Serial data output to the Bluetooth section
21
NCO
-
Not used
22
FLD_ON
O
Power on/off control signal output for the front panel section
23
ACC_IN
I
Accessory power detection signal input terminal “L”: accessory power on
24
TEL_ATT
I
Telephone muting detection signal input terminal
25
ATT
O
Muting on/off control signal output terminal
26
BUS_ON
O
SONY bus on/off control signal output terminal
27
SYSRST
O
Reset signal output terminal
28
CD_ON
I
CD servo power supply control request input terminal
29
CDM_ON
I
CD mecha power supply control request input terminal
30
DAVDD
-
Power supply terminal (+3.3V)
31
AVRH
-
Reference voltage (+3.3V) input terminal
32
RC_IN1
I
Rotary remote commander shift key input terminal
33
DAVSS
-
Ground terminal
34
MD_AUDIO_SEL
O
Muting on/off control signal output terminal
35
VSM
I
FM and AM signal-meter voltage detection signal input from the PLL
36
SA_IN
I
Spectrum analyzer display data select signal input terminal
37
BT_AUDIO_SEL
O
Muting on/off control signal output terminal
38
KEY_IN0
I
Front panel key input terminal
39
RC_IN0
I
Rotary remote commander shift key input terminal
40
DSPL_IF
O
Communication start-up signal output to the fl uorescent indicator tube driver
41
DSPL_RESET
O
Reset signal output to the fl uorescent indicator tube driver
42
VSS
-
Ground terminal
43
KEY_ACK0
I
Acknowledge signal (wake up signal) input terminal for the rotary remote commander
44
KEY_ACK1
I
Acknowledge signal (wake up signal) input terminal for the front panel key
45
FSW_OUT
O
DC/DC converter oscillation frequency select signal output terminal
46
DSPL_RX
I
Serial data input from the fl uorescent indicator tube driver
47
DSPL_TX
O
Serial data output to the fl uorescent indicator tube driver
48
NCO
-
Not used
49 to 51
MD0 to MD2
I
Operation mode setting terminal
52
RESET
I
System reset signal input from the reset signal generator and reset switch “L”: reset
53
MC_RX
I
Serial data input from the CD section
54
MC_TX
O
Serial data output to the CD section
55
NCO
-
Not used
56
WAKE_UP
O
Wakeup signal output to the CD section
MEX-BT5700U/BT5750U
42
Pin No.
Pin Name
I/O
Description
57
FLS_RX
O
Flash writer data output terminal
58
FLS_TX
I
Flash writer data input terminal
59
FLS_CLK
O
Flash writer clock signal output terminal
60
Z_MUTE
I
Muting on/off control signal input from the CD section
61
ILL_IN
I
Illuminate line detect signal input for the auto dimmer control
62
NCO
-
Not used
63
VCC3
-
Power supply terminal (+3.3V)
64
VSS1
-
Ground terminal
65
NCO
-
Not used
66
AMP_STB
O
Standby control signal output to the power amplifi er
67
DIAG
I
Diagnostic signal input from the power amplifi er
68
EJECT_OK
O
CD eject OK signal output to the CD section
69
SA_OUT
O
Serial data output to the electrical volume
70
SA_CLK
O
Serial data transfer clock signal output to the electrical volume
71
NCO
-
Not used
72
TUATT
O
Not used
73
NCO
-
Not used
74
RDS_ON
O
Power on/off control signal output terminal for the RDS section (BT5700U: AEP and UK
models only)
models only)
75
FLASH_EN0
I
Flash writer programming start-up signal input terminal (Fixed at L in this set)
76
FLASH_EN1
I
Flash writer programming start-up signal input terminal
77
USB_ON
O
Power on/off control signal output for the USB section
78
DD_ON
O
Power on/off control signal output for the DC/DC converter section
79
BT_SEL
I
Bluetooth corresponding discrimination setting terminal “H”: Bluetooth active
80
BT_MIC_DETECT
I
Microphone detection signal input terminal for the MIC IN jack
81
BUIN
I
Back up power supply detection signal input terminal “L” is input at low voltage
82
DAVN
I
Synchronize detection signal input of RDS data block (BT5700U: AEP and UK models only)
83 to 85
AREA_SEL2 to
AREA_SEL0
I
Destination setting terminal
86
VBUS_ON
I
Power on/off control signal output terminal for the USB section
87
USB_OVER
I
Over current detection signal input terminal for USB power supply section
88
VCC3
-
Power supply terminal (+3.3V)
89
VSS1
-
Ground terminal
90
X1
O
Main system clock output terminal (7.92 MHz)
91
X0
I
Main system clock input terminal (7.92 MHz)
92
BTU_POWER
O
Power on/off control signal output terminal for the Bluetooth section “H”: power on
93
BT_ACTIVE
I
Boot state detection signal input terminal for the Bluetooth section
94
BT_SYS_ON
O
System boot signal output terminal for the Bluetooth section
95
BEEP
O
Beep sound drive signal output to the power amplifi er
96
ZAPPIN_BEEP
O
Beep sound drive signal output to the electrical volume
97
BT_MIC_SEL
O
Microphone selection signal output terminal
98
BTU_RESET
O
Reset signal output to the Bluetooth section
99
CYRIL_SEL
I
Cyrillic letter response setting terminal “H”: corresponds to Cyrillic letter
100
B-OUT_SEL
I
Black out setting terminal “H”: black out
MEX-BT5700U/BT5750U
43
KEY BOARD IC901 R5F64167DA01FB (FLUORESCENT INDICATOR TUBE DRIVER)
Pin No.
Pin Name
I/O
Description
1
MAS_IF
I
Communication start-up signal input from the system controller
2
SIRCS
I
SIRCS signal input from the remote control receiver
3
VDC0
-
Capacitor connecting terminal
4
NOC
-
Not used
5
VDC1
-
Capacitor connecting terminal
6
NSD
I/O
Debug terminal Fixed at “H” in this set
7
CNVSS
I
Flash writer port signal input terminal
8, 9
NCO
-
Not used
10
RESET
I
Reset signal input from the system controller
11
XOUT
O
System clock output terminal (8 MHz)
12
VSS
-
Ground terminal
13
XIN
I
System clock input terminal (8 MHz)
14
VCC1
-
Power supply terminal (+3.3V)
15
NMI
I
Non-maskable interrupt signal input terminal Fixed at “H” in this set
16 to 18
NCO
-
Not used
19
GCP_TA4_IN
I
Blanking signal input terminal
20
NCO
-
Not used
21
FL_CLK_IN
I
Serial data transfer clock signal input terminal
22
FL_DAT2
O
Serial data output to the fl uorescent indicator tube
23
NCO
-
Not used
24
LAT_TA2_OUT
O
Serial latch pulse signal output to the fl uorescent indicator tube
25
NCO
-
Not used
26
BK_TA1_OUT
O
Blanking signal output to the fl uorescent indicator tube
27
NCO
-
Not used
28
GCP_TA0_OUT
O
GCP signal output to the fl uorescent indicator tube
29
SYS_SO
O
Serial data output to the system controller
30
SYS_SI
I
Serial data input from the system controller
31
FLS_CLK
I
Flash writer serial clock signal input terminal Fixed at “L” in this set
32
BUSY
O
Flash writer BUSY signal output terminal Not used
33
FL_DAT1
O
Serial data output to the fl uorescent indicator tube
34
NCO
-
Not used
35
FL_CLK_IN
I
Serial data transfer clock signal input terminal
36 to 38
NCO
O
Not used
39
HOLD
I
External data bus (HOLD) signal input terminal Fixed at “L” in this set
40 to 43
NCO
O
Not used
44
WRI/WR
I
External data bus (WRI/WR) signal input terminal Fixed at “H” in this set
45
FL_DAT3
O
Serial data output to the fl uorescent indicator tube
46
NCO
-
Not used
47
FL_CLK_OUT
O
Serial data transfer clock signal output to the fl uorescent indicator tube
48 to 59
NCO
-
Not used
60
VCC2
-
Power supply terminal (+3.3V)
61
NCO
-
Not used
62
VSS
-
Ground terminal
63 to 66
NCO
O
Not used
67 to 70
STATUS_3 to STATUS0
O
Not used
71 to 77
NCO
-
Not used
78
KEY_PUSH
I
Key signal input terminal for the rotary encoder
79, 80
NCO
-
Not used
81 to 84
SW_4 to SW_1
I
Not used
85, 86
KEY_1, KEY_2
I
Key signal input terminal for the front panel key
87 to 89
NCO
-
Not used
90
ILL_GREEN
O
Not used
91
ILL_BLUE
O
Not used
92
ILL_RED
O
Not used
93
NCO
-
Not used
MEX-BT5700U/BT5750U
44
Pin No.
Pin Name
I/O
Description
94
AVSS
-
Ground terminal
95
NCO
-
Not used
96
VREF
-
Reference voltage (+3.3V) input terminal
97
AVCC
-
Power supply terminal (+3.3V)
98
RING
O
LED drive signal output terminal for the ring illuminator
99, 100
NCO
-
Not used
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