Read Sony DSX-A60BT Service Manual online
DSX-A60BT
23
• IC Pin Function Description
MAIN BOARD IC101 R5F3650KCDZ93FB (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
SIRCS
I
Remote control signal input from the front panel block
3 to 5
NC
-
Not used
6
BYTE
I
External data bus width selection signal input terminal
7
CNVSS
I
Processor mode selection signal input terminal
8
XIN
I
Sub system clock input terminal (32.768 kHz)
9
XOUT
O
Sub system clock output terminal (32.768 kHz)
10
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”
11
OSCOUT
O
Main system clock output terminal (7.92 MHz)
12
VSS
-
Ground terminal
13
OSCIN
I
Main system clock input terminal (7.92 MHz)
14
VCC1
-
Power supply terminal (+3.3V)
15
NMI
I
Non-maskable interrupt signal input terminal Fixed at “H” in this unit
16
CMD_ERR
I
Command error signal input from the audio DSP “H”: error
17
BUSY
I
Busy signal input from the audio DSP “L”: busy
18
SYSRST
O
Reset signal output to the audio DSP “L”: reset
19
CE
O
Chip enable signal output to the audio DSP
20
SDI
I
Serial data input from the audio DSP
21
SCK
O
Serial data transfer clock signal output to the audio DSP
22
SDO
O
Serial data output to the audio DSP
23
USB_IN
I
USB device detection signal input from the audio DSP “L”: USB device is connected
24
SYNC_OUT
O
Frequency control signal output to the DC/DC converter
25
WDT_MON
I
Watch-dog timer status monitor input from the audio DSP
26
BEEP
O
Beep sound output to the power amplifi er
27, 28
NC
-
Not used
29
FW_TXD
O
Serial data output terminal for fl ash writing
30
FW_RXD
I
Serial data input terminal for fl ash writing
31
FW_CLK
I
Serial data transfer clock signal input terminal for fl ash writing
32
FW_BUSY
O
Busy signal output terminal for fl ash writing
33 to 38
NC
-
Not used
39
EPM
O
EPM signal output terminal Fixed at “L” in this unit
40 to 43
DEBUG_1 to
DEBUG_4
O
Debug terminal Not used
44
CE
O
Chip enable signal output terminal Fixed at “H” in this unit
45
HIT2_SDA
I/O
Two-way serial data bus with the tuner unit
46
HIT2_SCL
O
Serial data transfer clock signal output to the tuner unit
47
HIT2_RESET
O
Reset signal output to the tuner unit “L”: reset
48
EN_USB
O
USB power on/off control signal output to the DC/DC converter “H”: power on
49
NC
-
Not used
50
FLT_USB
I
USB power fault status signal input from the DC/DC converter
51
EN_SYS
O
VBUS power on/off control signal output to the DC/DC converter “H”: power on
52
IPOD
O
Not used
53
NC
-
Not used
54
TELATT
I
Telephone attenuator detection signal input terminal Fixed at “L” in this unit
55
ACC_IN
I
Accessory power detection signal input terminal
56
ATT
O
Audio muting on/off control signal output terminal “H”: muting on
57
AMP_MUTE
O
Amplifi er muting on/off control signal output to the power amplifi er “H”: muting on
58
AMPSTB
O
Standby signal output to the power amplifi er “L”: standby
59
ILL_ON
O
Power on/off control signal output terminal for illumination LED “H”: power on
60
VCC2
-
Power supply terminal (+3.3V)
61
NC
-
Not used
62
VSS
-
Ground terminal
63, 64
NC
-
Not used
65
BT_MUTE (A50)
I
Muting on/off control signal input from the Bluetooth section “H”: muting on
66
BU_IN
I
Back-up power detection signal input terminal
67 to 71
NC
-
Not used
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