Sony MEX-BT39UW Manual de servicio - Página 33

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Sony MEX-BT39UW Manual de servicio
• IC Pin Function Description
MAIN BOARD IC501 R5F3650KBDZ95FA (SYSTEM CONTROLLER)
Pin No.
Pin Name
1
LCD_SO
2
LCD_CLK
3
NOSE_SW
4
SIRCS
5
UNISO
6
UNISI
7
UNISCK
8
BYTE
9
CNVSS
10
XIN
11
XOUT
12
RESET
13
OSCOUT
14
VSS
15
OSCIN
16
VCC1
17
NMI
18
RC_IN1
19
BUIN
20
SYSRST
21
BUS_ON
22
MC_RX
23
NCO
24
MC_TX
25
NCO
26
SYNC_OUT
27
NCO
28
BEEP
29
I2C_SCK
30
I2C_SIO
31
FW_TXD
32
FW_RXD
33
FW_CLK
34
FW_BUSY
35, 36
NCO
37
CD_ON
38
CDM_ON
39
WAKE_UP
40
Z_MUTE
41
EPM
MODELNAME_SEL0
42 to 45
to
MODELNAME_SEL3
46
CE
47
NCO
48
SA_DATAIN
49
SA_CLKOUT
50
USBON
51
VBUS_ON
52
USB_OVR
53
EXTATT_XEN
54, 55
NCO
56
TELATT
57
ACC_IN
58
ATT
I/O
O
Serial data output to the LCD driver
O
Serial clock signal output to the LCD driver
I
Front panel remove/attach detection signal input terminal
I
Remote control signal input from the remote control signal receiver
O
SONY bus data output to bus interface (BT39UW/BT3900U: US and Canadian models)
I
SONY bus data input from the bus interface (BT39UW/BT3900U: US and Canadian models)
SONY bus clock signal output to the bus interface
O
(BT39UW/BT3900U: US and Canadian models)
I
External data bus width select signal input
I
Flash write signal input terminal
I
Low speed operation clock signal input terminal (32.768 kHz)
O
Low speed operation clock signal output terminal (32.768 kHz)
I
System reset signal input from the reset signal generator and reset switch
O
High speed operation clock signal output terminal (7.92 MHz)
―
Ground terminal
I
High speed operation clock signal input terminal (7.92 MHz)
―
Power supply terminal (+3.3V)
I
Non-maskable interrupt signal input terminal
I
Rotary remote commander shift key input terminal
I
Back up power supply detection signal input terminal
O
Reset signal output terminal
SONY bus on/off control signal output to the bus interface
O
(BT39UW/BT3900U: US and Canadian models)
I
Serial data input from the CD section
O
Not used
O
Serial data output to the CD section
O
Not used
O
D/D converter frequency control signal output terminal
O
Not used
O
Beep sound drive signal output to the power amplifi er
O
IIC serial clock signal output terminal
I/O
IIC two-way serial data bus terminal
O
Flash writer data output terminal
I
Flash writer data input terminal
I
Flash writer clock signal output terminal
O
Flash writer busy signal output terminal
O
Not used
I
CD servo power supply control request signal input from the CD section
I
CD mecha power supply control request signal input from the CD section
O
Wakeup signal output to the CD section
I
Muting on/off control signal input from the CD section
O
EPM signal output terminal
I
Model name select signal input terminal
O
Chip enable signal output terminal
O
Not used
I
Spectrum analyzer serial data input from the CD section
O
Spectrum analyzer serial clock signal output to the CD section
O
Power on/off control signal output for the USB section
O
Power on/off control signal output terminal for the USB section
I
Over current detection signal input terminal for USB power supply section
O
External muting on/off control signal output terminal
O
Not used
I
Telephone attenuator detection signal input terminal
I
Accessory power detection signal input terminal
O
Muting on/off control signal output terminal
MEX-BT39UW/BT3900U/BT3950U
Description
Fixed at "L" in this set
Connect to VSS in this set
Normally operation: "L", Flash write: "H"
Fixed at "H" in this set
"L" is input at low voltage
Fixed at "L" in this set
Fixed at "H" in this set
Not used
"L": accessory power on
"H": muting on
"L": reset
33