Read Sony DAV-DZ770W / DAV-FX999W / TA-WR3 Service Manual online
15
TA-WR3
• IC Pin Function Description
RX BOARD IC107 MB89537APFM-G-654-BNDE1 (SYSTEM CONTROLLER)
Pin No.
Pin Name
I/O
Description
1
NC
—
Not used
2
MOD2
I
Setting terminal for the CPU operation mode Fixed at “L” in this set
3, 4
NC
—
Not used
5
MODEL
I
Setting terminal for the model
6
SIMUKE
I
Setting terminal for the destination
7 to 10
NC
—
Not used
11
AVCC
—
Power supply terminal (+3.3V) (for A/D converter)
12
AVR
I
Reference voltage (+3.3V) input terminal (for A/D converter)
13
AVSS
—
Ground terminal (for A/D converter)
14
DTVAILD
I
Data valid flag input from the RF demodulator “L”: invalid, “H”: valid
15
CSOD
I
Captor start delay signal input from the RF demodulator “H”: active
16
NC
I
Ground terminal
17
AC CUT
I
AC cut detection signal input terminal “L”: AC cut
18
NC
I
Ground terminal
Reset signal input terminal “L”: reset
19
/RESET
I
For several hundreds msec. after the power supply rises, “L” is input, then it
changes to “H”
20, 21
MD0, MD1
I
CPU operation mode setting signal input terminal
22
XO
O
Main system clock output terminal (8 MHz)
23
XI
I
Main system clock input terminal (8 MHz)
24
VSS
—
Ground terminal
25
FS2_EX
I
Not used
26
XRST_INIT
O
Reset signal output to the RF demodulator and stream processor “L”: reset
27, 28
NC
—
Not used
29
P23
I
Setting terminal for the CPU operation mode Fixed at “L” in this set
30
P22
I
Setting terminal for the CPU operation mode Fixed at “H” in this set
31, 32
NC
—
Not used
33
DAMP_PGMUTE
O
PG muting on/off control signal output to the stream processor “L”: muting on
34
DAMP_SOFTMUTE
O
Soft muting on/off control signal output to the stream processor “L”: muting on
35
DAMP_NSPMUTE
O
NSP muting on/off control signal output to the stream processor “L”: muting on
36
NC
—
Not used
37
DRIVE_RST
O
Reset signal output to the power driver “L”: reset
38
DRIVE_OCP
I
Shut down state input from the power driver “L”: shut down
39
DRIVE_OTW
I
Overtemperature warning signal input terminal Not used
40
P10
I
Setting terminal for the CPU operation mode Fixed at “H” in this set
41
LED_GREEN
O
LED drive signal output of the ON LINE indicator “H”: LED on
42
LED_RED
O
LED drive signal output of the POWER indicator “H”: LED on
43 to 47
NC
—
Not used
48
SCMODE
O
Control mode selection signal output to the RF demodulator
“L”: pin setting, “H”: serial setting”
49
NC
—
Not used
50
XSCEN
O
Serial interface enable signal output to the RF demodulator
51
DIAT_SCLK
O
Serial interface data clock signal output to the RF demodulator
52
DIAT_SWDT
O
Serial interface data write signal output to the RF demodulator
53
DIAT_SRDT
I
Serial interface data read signal input from the RF demodulator
54
NC
—
Not used
55
T_SENSE
O
Not used
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