Read Sony TA-WR1 Service Manual online
15
TA-WR1
• IC Pin Function Description
RX BOARD IC7405 MB89537APFM-G-598-BNDE1 (AMP CONTROLLER)
Pin No.
Pin Name
I/O
Description
1
NC
O
Not used
2
MOD2
I
Setting terminal for the CPU operation mode Fixed at “L” in this set
3
VOLT
I
Battery voltage detection input terminal Not used
4
TEMP
I
Battery thermal detection input terminal Not used
5 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
PROTECT
I
Over current detection signal input for speaker output terminal “L”: over current
16
CSOD
I
Captor start delay signal input from the RF demodulator “H” active
17, 18
NC
—
Not used
19
RST
I
Reset signal input terminal “L”: reset
For several hundreds msec. after the power supply rises, “L” is input, then it changes to “H”
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
X0
I
Main system clock input terminal (12.5 MHz)
23
X1
O
Main system clock output terminal (12.5 MHz)
24
VSS
—
Ground terminal
25
DAC_CLK
O
Serial data transfer clock signal output to the D/A converter
26
DAC_DATA
O
Serial data output to the D/A converter
27
DAC_LAT
O
Serial data latch pulse signal output to the D/A converter
28
XRST
O
Reset signal output to the RF demodulator and stream processor “L”: reset
29
P23
I
Setting terminal for the CPU operation mode Fixed at “L” in this set
30
PPG02
I
Setting terminal for the CPU operation mode Fixed at “H” in this set
31
SPRY
O
Speakers on/off relay drive signal output “H”: speakers on
32
STOP
I
Power failure detection input terminal “L”: power on
33
VOLIC_DATA
O
Serial data output to the electrical volume
34
VOLIC_CLK
O
Serial data transfer clock signal output to the electrical volume
35
PWR_RY
O
Main power on/off relay drive signal output terminal “H”: power on
36
LED_RED
O
LED drive signal output of the standby indicator “H”: LED on
37
LED_DIAT
O
LED drive signal output of the DIAT signal receive state indicator “H”: LED on (receive error)
38
LED_ON
O
LED drive signal output of the power on indicator “H”: LED on
39
DIATOFF
O
Power on/off control signal output terminal for the DIAT circuit “H”: active
40
P10
I
Setting terminal for the CPU operation mode Fixed at “H” in this set
41
MUTE
O
Muting on/off control signal output terminal “L”: muting on
42
FAN1
O
Fan motor drive control signal output terminal “H”: active
43
FAN2
O
Fan motor drive speed control signal output terminal “H”: high speed, “L”: low speed
44
FAN_CLK
I
Fan motor stop detection signal input terminal “L”: fan motor stop
45
FANON
I
Output level detection signal input terminal “H”: low level, “L”: high level
46
SCMODE
O
Control mode selection signal output terminal “L”: pin setting, “H”: serial setting Not used
47
PSAVE
O
Power on/off control signal output terminal for the volume control circuit “H”: active
48
PWR_CTL
O
Not used
49
NC
—
Not used
50
PWMUTE
O
Not used
51
DIAT_CK
O
Serial interface data clock signal output to the RF demodulator
Click on the first or last page to see other TA-WR1 service manuals if exist.