Read Sony MEX-BT2800 / MEX-BT2807E / MEX-BT2850 Service Manual online
MEX-BT2800/BT2807E/BT2850
31
Pin No.
Pin Name
I/O
Description
1
LCD_SO
O
Serial data output to the liquid crystal display driver
2
LCD_CKO
O
Serial data transfer clock signal output to the liquid crystal display driver
3
NOSE_SW
I
Front panel remove/attach detection signal input terminal “L”: front panel is attached
4
SIRCS
I
Remote control signal input from the remote control receiver
5
UNISO
O
SONY bus data output to the bus interface (BT2800: US and Canadian models only)
6
UNISI
I
SONY bus data input from the bus interface (BT2800: US and Canadian models only)
7
UNISCK
O
SONY bus clock signal output to the bus interface (BT2800: US and Canadian models only)
8
BYTE
I
Connect to ground (Pull down)
9
CNVSS
I
Flash write signal input terminal Normally operation: “L”, Flash write: “H”
10
XIN
I
Sub system clock input terminal (32.678 kHz)
11
XOUT
O
Sub system clock output terminal (32.678 kHz)
12
RESET
I
System reset signal input from the reset signal generator and reset switch “L”: reset
13
OSCOUT
O
Main system clock output terminal (11.08 MHz)
14
VSS
-
Ground terminal
15
OSCIN
I
Main system clock input terminal (11.08 MHz)
16
VCC1
-
Power supply terminal (+3.3V)
17
NMI
-
Not used
18
DAVN
I
Synchronize detection signal input of RDS data block Not used
19
BUIN
I
Back up power supply detection signal input terminal “L” is input at low voltage
20
CDM_ON
I
CD mechanism power supply control request signal input terminal
21
Z-MUTE
I
Muting on/off control signal input from the CD section “H”: muting on
22
BT_TEST1
O
Bluetooth section test mode (1) control signal output terminal
23
BT_TEST2
O
Bluetooth section test mode (2) control signal output terminal
24
BT_INT-HF
I
HF operation notifi cation signal input from the Bluetooth section “H” active
25
BT_CVC
O
CVC selection request signal output to the Bluetooth section
“L”: internal microphone CVC, “H”: external microphone CVC
“L”: internal microphone CVC, “H”: external microphone CVC
26
BT_PLAY
O
Key signal output to the Bluetooth section
27
NCO
-
Not used
28
BEEP
O
Beep sound drive signal output to the power amplifi er
29
I2C_SCK
O
IIC serial clock signal output terminal
30
I2C_SIO
I/O
IIC two-way serial data bus terminal
31
FW_TXD
O
Flash write interface serial data signal output terminal
32
FW_RXD
I
Flash write interface serial data signal input terminal
33
FW_CLK
I
Flash write interface serial clock signal input terminal
34
BT_STATUS0
FW_BUSY
I
Status input from the Bluetooth section
35 to 37
BT_STATUS1 to
BT_STATUS3
I
Status input from the Bluetooth section
38
BT_MUTE
I
Muting on/off control signal input from the Bluetooth section
39
BT_FR
O
Key signal output to the Bluetooth section
40
BT_FF
O
Key signal output to the Bluetooth section
41
EPM
I
EPM signal output terminal (fi xed at “L”)
42
RC_IN1
I
Rotary remote commander shift key input terminal
43
SYSRST
O
Reset signal output to the CD section
44
BUSON
O
SONY bus on/off control signal output to the bus interface
(BT2800: US and Canadian models only)
(BT2800: US and Canadian models only)
45
BT_MICPWR
O
Microphone power on/off control signal output to the Bluetooth section “L”: power on
46
CE
-
Not used
47
BT_PWRCTRL
O
Main power on/off control signal output terminal of the Bluetooth section “H”: power on
48
BT_OPRPOW
O
Key signal output to the Bluetooth section
49
BT_MFUNC
O
Key signal output to the Bluetooth section
50
BT_STAPWR
I
Power supply status input from the Bluetooth section “H”: Bluetooth power on
51
BT_RESET
O
Reset signal output to the Bluetooth section “L”: reset
52
CD_ON
I
CD servo power supply control request signal input terminal
53
TESTIN
-
Not used
54
TELATT
I
Telephone attenuator detection signal input terminal
55
ACC_IN
I
Accessory power detection signal input terminal “L”: accessory power on
• IC Pin Function Description
MAIN BOARD IC501 R5F3640DDA17FA (SYSTEM CONTROLLER)
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