Read Sony SA-WNT3 Service Manual online
SA-WNT3
23
• IC Pin Function Description
SUB MAIN BOARD (1/3) IC7400 MB9AF142LBPMC1-G-JNE2 (SYSTEM CONTROLLER)
Pin No.
Pin Name
I/O
Description
1
VCC
-
Power supply terminal (+3.3V)
2
DC_DET
I
Speaker DC detection signal input terminal "L": speaker DC is detected
3
DRIVER_SD
I
DAMP driver shutdown
4
P_DAMP_CLIP
I
DAMP CLIP for VACS
5
NO USE
-
Not used
6
TAS5534_SCL
O
Serial data transfer clock signal output to the stream processor
7
TAS5534_SDA
I/O
Two-way data bus with the stream processor
8
NO USE
-
Not used
9
TAS5534_XPDN
O
TAS5534 power down
10
TAS5534_XRST
O
TAS5534 reset
11
TAS5534_MUTE
O
TAS5534 mute
12
NO USE
-
Not used
13
P_CONT_ACDET
O
AC detect control port
14
LED_RED
O
Red LED Control
15
LED_GREEN
O
Green LED Control
16
VSS
-
Ground terminal
17
C
I
Power stabilization capacity
18
VCC
-
Power supply terminal (+3.3V)
19
NO USE
-
Not used
20
NO USE
-
Not used
21
INITX(RESET)
I
External Reset Input
22
NO USE
-
Not used
23
NO USE
-
Not used
24
WS_RST
O
Wireless Sound Reset
25
WS_SCL
O
Wireless Sound Clock
26
WS_SDA
I/O
Wireless Sound Data
27
WS_INT
I
Wireless Sound Interrupt
28
MD1
I
MD1="L": Flash memory write mode
29
MD0
I
MD0="L": normal "H":Flash memory write mode
30
X0
I
Main Clock IN (4MHz)
31
X1
O
Main Clock OUT (4MHz)
32
VSS
-
Ground terminal
33
VCC
-
Power supply terminal (+3.3V)
34
KEY_PAIRING
I
KEY INPUT 0
35
KEY_POWER
I
Wakeup from ECO MODE by Power Key Input
36
MODEL
I
Model select
37
DEST
I
Destination select
38
PULL_UP_POWER
O
Control port for MODEL/DEST AVCC
39
NO USE
-
Not used
40
AC_CUT
I
AC cut detection signal input terminal "L": AC cut is detected
41
AVCC
-
Power supply terminal (+3.3V)
42
AVRH
I
Standard power supply pin for A/D converter
43
AVSS
-
Ground terminal
44
P_CONT1
O
Control for Power Supply (for TAS5534)
45
P_CONT2
O
Control for Power Supply (for general device)
46
ON CHIP DEBUG /
CLK1
I
On Chip Debugger
47
(PROG_VUTX)
O
for uCom Flash PROGRAMMING / for Debug
48
(PROG_VURX)
I
for uCom Flash PROGRAMMING / for Debug
49
NO USE
-
Not used
50
TCK
I
J-TAG test clock input
51
TDI
I
J-TAG test data input
52
TMS
I
J-TAG test data input
53
TDO
I
J-TAG test data output
54
NO USE
-
Not used
55
NO USE
-
Not used
56
NO USE
-
Not used
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