Read Sony AIR-SA50R Service Manual online
AIR-SA50R
20
Pin No.
Pin Name
I/O
Description
1 to 3
NC
-
Not used
4
IR_IN
I
SIRCS signal input from the remote control receiver
5 to 7
NC
-
Not used
8
BYTE
I
External data bus width selection signal input terminal
9
CNVSS
I
Change processor mode setting signal input terminal
10
XCIN
I
Sub system clock input terminal (32.768 kHz)
11
XCOUT
O
Sub system clock output terminal (32.768 kHz)
12
RESET
I
System reset signal input from the reset signal generator “L”: reset
For several hundreds msec. after the power supply rises, “L” is input, then it change to “H”
For several hundreds msec. after the power supply rises, “L” is input, then it change to “H”
13
XOUT
O
System clock output terminal (5 MHz)
14
VSS
-
Ground terminal
15
XIN
I
System clock input terminal (5 MHz)
16
VCC1
-
Power supply terminal (+3.3V)
17
NMI
I
Non-maskable interrupt signal input terminal Not used
18
TSINT
I
Interrupt signal input from the TOUCH board
19
DAMP PDN
O
Power down signal output to the digital power amplifi er “L”: power down
20
AC CUT
I
AC cut detection signal input terminal “L”: AC cut
21
DAMP MUTE
O
Muting on/off control signal output to the digital power amplifi er “L”: muting on
22
DAMP CLK
O
Serial data transfer clock signal output to the digital power amplifi er
23
DAMP VALID
I
Valid signal input from the digital power amplifi er “H”: valid
24
DAMP DOUT
O
Serial data output to the digital power amplifi er
25
DAMP RST
O
Reset signal output to the digital power amplifi er “L”: reset
26
BUZZER
O
Buzzer sound signal output terminal
27
TRST
O
Reset signal output to the TOUCH board “L”: reset
28
BEEP
O
Beep sound signal output terminal
29
TSCLK
O
I2C clock signal output to the TOUCH board
30
TSDATA
I/O
Two-way I2C data bus with the TOUCH board
31
TXD1
-
Not used
32
RXD1
-
Not used
33
CLK1
-
Not used
34
RTS1
-
Not used
35
O_POWER
O
Power supply on/off control signal output terminal “H”: power on
36
NC
O
Not used
37
STBY_LED
O
LED drive signal output terminal for STANDBY indicator “H”: LED on
38
MODULE_ON
O
Power supply on/off control signal output terminal for wireless transceiver “H”: power on
39
CLOCK
-
Not used
40
LCD_RST
O
Reset signal output to the liquid crystal display “L”: reset
41
EPM
-
Not used
42
LCD SCL
O
Serial data transfer clock signal output to the liquid crystal display
43
LCD CE
O
Chip enable signal output to the liquid crystal display
44
LCD DATA
O
Serial data output to the liquid crystal display
45
LCD RS
O
Read strobe signal output to the liquid crystal display
46
FLASH CE
-
Not used
47
EEPROM DATA
I/O
Two-way I2C data bus with the EEPROM
48
EEPROM CLK
O
I2C clock signal output to the EEPROM
49
ADC3.3V_ON
O
Power supply on/off control signal output terminal for +3.3V power supply “H”: power on
50
A5V_ON
O
Power supply on/off control signal output terminal for +5V power supply “H”: power on
51, 52
LIGHT2, LIGHT1
O
LED drive signal output terminal for liquid crystal display back light “H”: LED on
53
SONY LOGO LED
O
LED drive signal output terminal for SONY indicator “H”: LED on
54
S-AIR LED
O
LED drive signal output terminal for S-AIR indicator “H”: LED on
55 to 57
NC
-
Not used
58
S-AIR RST
O
Reset signal output to the wireless transceiver “L”: reset
59 to 61
NC
-
Not used
62
VCC2
-
Power supply terminal (+3.3V)
63
NC
-
Not used
64
VSS
-
Ground terminal
• IC Pin Function Description
MAIN BOARD IC401 R5F3640DDFAR-128 (SYSTEM CONTROLLER)
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