Read Sony XR-F5100S Service Manual online
25
XR-F5100S
•
IC Pin Function Description
MAIN BOARD IC501 MN101C49KSS (SYSTEM CONTROLLER)
Pin No.
Pin Name
I/O
Description
1
VREF –
I
Negative reference voltage (0V) input terminal
2
VSM
I
FM and AM signal-meter voltage detection signal input from the tuner unit (A/D input)
3
NIL
I
Not used
4, 5
KEYIN1, KEYIN0
I
Front panel key input terminal (A/D input)
6
RCIN0
I
Rotary remote commander key input terminal (A/D input)
7
QUALITY
I
Noise level detection signal input at SEEK mode (A/D input)
8
NIL
I
Not used
9
DSTSEL
I
Setting terminal for the destination
10
VREF
I
Reference voltage (+5V) input terminal
11
VDD
—
Power supply terminal (+5V)
12
OSCOUT
O
System clock output for high speed operation (18.43 MHz)
13
OSCIN
I
System clock input for high speed operation (18.43 MHz)
14
VSS
—
Ground terminal
15
XIN
I
System clock input for high speed operation (32.768 kHz)
16
XOUT
O
System clock output for high speed operation (32.768 kHz)
17
MMOD
I
Setting terminal for the memory mode “L”: single chip mode
18
LCDSO
O
Serial data output to the LCD drive IC
19
LCDCE
O
Chip enable signal output to the LCD drive IC
20
LCDCKO
O
Serial data transfer clock signal output to the LCD drive IC
21 to 23
NCO
O
Not used
24
SYSRST
O
System reset signal output to the SONY bus interface
25
BUSON
O
SONY bus on/off control signal output terminal “L”: bus on
26
KEY ACK
I
Acknowledge signal (wake up signal) input terminal for the key entry Acknowledge signal is
input to accept any function key in the standby status On at input of “H”
input to accept any function key in the standby status On at input of “H”
27
DAVN
I
Data transmit completed detection signal input from the RDS decoder Not used
28
BUIN
I
Back up power supply detection signal input terminal “L” is input at low voltage
29
SIRCS
I
SIRCS signal input terminal
30
TUATTIN
I
Attenuate control signal input from the tuner pack
31, 32
NIL
I
Not used
33
RESET
I
System reset signal input from the reset signal generator and reset switch “L”: reset
For several hundreds msec. after the power supply rises, “L” is input, then it changes to “H”
For several hundreds msec. after the power supply rises, “L” is input, then it changes to “H”
34
TUNON
O
Power on/off control signal output for tuner section
35
BEEP
O
Beep sound drive signal output terminal
36, 37
NCO
O
Not used
38
ACCIN
I
Accessory power detection signal input terminal “L”: accessory power on
39
NC (VCC)
O
Not used
40
TELATT
I
Telephone muting detection signal input terminal
At input of “H”, the audio signal is attenuated by 20 dB
At input of “H”, the audio signal is attenuated by 20 dB
41
NC (VCC)
I
Not used
42
BUSSO
O
Serial data output to the SONY bus interface
43
BUSSI
I
Serial data input from the SONY bus interface
44
BUSCKO
O
Serial data transfer clock signal output to the SONY bus interface
45
I2C_SIO
I/O
IIC two-way data bus with the tuner pack, electrical volume and power amplifier
46
NCO
O
Not used
47
I2C_CKO
O
I2C bus clock signal output to the tuner pack, electrical volume and power amplifier
48
AMPON
O
AMP muting on/off control signal output terminal
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