Read Sony SA-WCT780 Service Manual online
SA-WCT780
27
• IC Pin Function Description
SW-MAIN BOARD IC100 R5F212BASNFP (SYSTEM CONTROLLER)
Pin No.
Pin Name
I/O
Description
1
NO USE
O
Not used
2
S-AIR_DATA
I/O
Two-way data with the RF modulator
3
FW_MODE
I
Flash memory writing mode selection signal input terminal Not used
4, 5
NO USE
O
Not used
6
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”
7
Xout
O
System clock output terminal (20 MHz)
8
Vss
-
Ground terminal
9
Xin
I
System clock input terminal (20 MHz)
10
Vcc1
-
Power supply terminal (+3.3V)
11
NO USE
O
Not used
12
P_CONT2
O
Power on/off control signal output terminal “H”: power on
13
P_CONT1 (3.3V)
O
Power on/off control signal output terminal “H”: power on
14
P_CONT_PVDD
O
Power on/off control signal output terminal “H”: power on
15 to 20
NO USE
O
Not used
21
LED_GREEN
O
LED drive signal output terminal for the on/standby indicator (green color) “H”: LED on
22
LED_RED
O
LED drive signal output terminal for the on/standby indicator (red color) “H”: LED on
23
PAIRING_LED
O
LED drive signal output terminal Not used
24
NO USE
O
Not used
25
DAMP_SHIFT
O
Serial data transfer clock signal output to the stream processor
26
NO USE
O
Not used
27
DAMP_SCDT
O
Serial data output to the stream processor
28
DRIVE_RST (EN)
O
Reset signal output to the digital power amplifi er “L”: reset
29
DAMP_INIT
O
Reset signal output to the stream processor “L”: reset
30
DAMP_OVF
I
Overfl ow detection signal input from the stream processor “L”: overfl ow is detected
31
DAMP_LATCH
O
Serial data latch pulse signal output to the stream processor
32
DAMP_SOFT_MUTE
O
Soft muting on/off control signal output to the stream processor “L”: muting on
33
DAMP_OVF2
I
Overfl ow detection signal input terminal Not used
34
DAMP_LATCH2
O
Serial data latch pulse signal output terminal Not used
35
NO USE
O
Not used
36
AC_CUT
I
AC cut detection signal input terminal “L”: AC cut is detected
37
FW_TxD
O
Transmit data output terminal for fl ash memory writing Not used
38
FW_RxD
I
Receive data input terminal for fl ash memory writing Not used
39 to 41
NO USE
O
Not used
42
PVDD_SD_EN
O
Shutdown signal output terminal “L”: shutdown
43
DC_DET
I
Speaker DC detection signal input terminal “L”: speaker DC is detected
44
NO USE
O
Not used
45
DRIVE_SD
I
Shutdown signal input from the digital power amplifi er “L”: shutdown
46
S-AIR FREQ DET
I
RF modulator frequency detection signal input terminal “L”: 5 GHz, “H”: 2.4 GHz
Fixed at “H” in this unit
Fixed at “H” in this unit
47
S-AIR DET
I
RF modulator detection signal input terminal “L”: RF modulator is detected
Fixed at “L” in this unit
Fixed at “L” in this unit
48
S-AIR_GPIO2
I
Interrupt signal input from the RF modulator
49
KEY_POWER
I
Power key input terminal
50
S-AIR_RESET
O
Reset signal output to the RF modulator “L”: reset
51
KEY_PAIRING
I
LINK key input terminal
52
SUR_MODE_SW
O
Not used
53
SHIMUKE
O
Destination setting terminal Not used
54
MODEL
O
Model setting terminal Not used
55
FAN_ON
O
Fan motor drive signal output terminal Not used
56
FAN_DET
I
Fan motor detection signal input terminal Not used
57
S-AIR_RF_FB
O
Not used
58
NO USE
O
Not used
59
Vss
-
Ground terminal
60
NO USE
O
Not used
61
Vref
I
Reference voltage (+3.3V) input terminal
62
Vcc1
-
Power supply terminal (+3.3V)
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