Read Sony SA-WSRD15 Service Manual online
21
SA-WSRD15
•
IC Pin Function Description
MAIN BOARD IC501 M30622MEP-A45FPU0 (SYSTEM CONTROLLER)
Pin No.
Pin Name
I/O
Description
1
DAMP_SCDT
O
Serial data output to the stream processor
2
DAMP_SHIFT
O
Shift clock signal output to the stream processor
3
NSP_MUTE
O
Muting on/off control signal output to the stream processor "L": muting on
4
SIRCS
I
Remote control signal input terminal
5
DSP_DOUT/
DIR_DOUT
O
Serial data output to the digital audio interface receiver and DSP
6
DSP_DIN
I
Serial data input from the DSP
7
DSP_CLK/
DIR_CLK
O
Serial data transfer clock signal output to the digital audio interface receiver and DSP
8
BYTE
-
Not used
9
CNVSS
-
Not used
10, 11
NO USE
-
Not used
12
RESET
I
System reset signal input terminal "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
Main system clock output terminal (5 MHz)
14
VSS
-
Ground terminal
15
XIN
I
Main system clock input terminal (5 MHz)
16
VCC
-
Power supply terminal (+3.3V)
17
NMI
-
Not used
18
DIR_ZERO
I
Audio serial data input from the digital audio interface receiver
19
DIR_INT
I
Interrupt status input from the digital audio interface receiver
20
AC_CUT
I
AC cut detection signal input terminal "L": AC cut
21
NO USE
-
Not used
22
V CON
-
Not used
23 to 27
NO USE
-
Not used
28
SMST-SEL
-
Not used
29
I2C_CLK
-
Not used
30
I2C_DATA
-
Not used
31
STR_SOD
O
Serial data output terminal Not used
32
STR_SID
I
Serial data input terminal
33
STR_SCI
I
Serial data transfer clock signal input terminal
34
RTS1
-
Not used
35
FL_DATA
O
Serial data output terminal
36
FL_STB
O
Chip enable signal output to the FL driver
37
FL_CLK
O
Serial data transfer clock signal output terminal
38 to 40
NO USE
O
Not used
41
EPM
-
Not used
42
NO USE
-
Not used
43
P_CONT1
O
Power on/off control signal output to the regulator IC
44
P_CONT2
O
Power on/off control signal output to the regulator IC and power supply circuit
45
P_CONT3
O
Power on/off control signal output terminal Not used
46
CE
-
Not used
47
DRIVE_RST
(EN)
O
Reset signal output to the digital power amplifier "L": reset
48
DRIVE_OCP
(DIAG)
I
Shut down state input from the digital power amplifier "L": shut down
49
OVERFLOW1
I
Over flow status 1 input from the stream processor
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