Read Sony SRS-NWGU50 Service Manual online
SRS-NWGU50
16
• IC Pin Function Description
MAIN BOARD IC300 R5F3640DDA04FAR-128 (SYSTEM CONTROLLER)
Pin No.
Pin Name
I/O
Description
1 to 3
NO USE
-
Not used
4
SIRCS_IN
I
SIRCS signal input from the remote control receiver
5 to 7
NO USE
-
Not used
8
BYTE
I
External data bus width selection signal input terminal
9
CNVSS
I
Change processor mode setting signal input terminal
10, 11
NO USE
-
Not used
12
RESET
I
System reset signal input from the reset signal generator “L”: reset
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
Not used
18
DAMP_RESET
O
Reset signal output to the digital power amplifi er “L”: reset
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_SCL
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_SDA
O
Serial data output to the digital power amplifi er
25 to 30
NO USE
-
Not used
31
TXD1
-
Not used
32
RXD1
-
Not used
33
CLK1
-
Not used
34
RTS1
-
Not used
35
WM-PORT_TX
O
Serial data output to the WM-PORT connector
36
WM-PORT_RX
O
Serial data input from the WM-PORT connector
37
WM-PORT_DET
I
WM-PORT connection detection signal input terminal “L”: WM-PORT is connected
38 to 45
NO USE
-
Not used
46
CE
-
Not used
47
I2C_DATA
-
Not used
48
I2C_CLK
-
Not used
49, 50
NO USE
-
Not used
51
PWR CTL
O
Power supply on/off control signal output terminal "H": power on
52 to 56
NO USE
-
Not used
57
DC_DET
O
Speaker DC detection signal input terminal “L”: DC detect
58 to 61
NO USE
-
Not used
62
VCC2
-
Power supply terminal (+3.3V)
63
NO USE
-
Not used
64
VSS
-
Ground terminal
65 to 68
LED_MUTING
O
LED drive signal output terminal for muting indicator “H”: LED on
69 to 72
LED_BASS
O
LED drive signal output terminal for BASS indicator “H”: LED on
73
NO USE
-
Not used
74
KEY_POWER
I
POWER key input terminal
75, 76
NO USE
-
Not used
77 to 80
LED_LINE
O
LED drive signal output terminal for INPUT indicator “H”: LED on
81 to 83
NO USE
-
Not used
84, 85
ASEL0, ASEL1
O
Audio input selection signal output terminal
86 to 88
NO USE
-
Not used
89 to 92
LED_POWER
O
LED drive signal output terminal for power indicator “H”: LED on
93
NO USE
-
Not used
94
KEY_VOL–
I
VOL – key input terminal
95
KEY_VOL+
I
VOL + key input terminal
96
AVSS
-
Ground terminal
97
KEY_INPUT
I
INPUT key input terminal
98
VREF
I
Reference voltage (+3.3V) input terminal
99
AVCC
-
Power supply terminal (+3.3V)
100
NO USE
-
Not used
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