Sony UDA-1 Service Manual page 57

DIGITAL BOARD IC306 MB9AF156NPMC-G-JNE2 (SYSTEM CONTROLLER)
Pin No. Pin Name
1 VCC
2 FS_INT
3, 4 NC
5 FS_XRESET
6 AUTOSTBY_SW
7 EQ_SW
8 DAC_RESET
9 DIR_INT
10 DIR_ERROR
11 DIR_NOAUDIO
12 DSD_DET
13 NC
14 FS DATA1_CAP
15 A-DAC_ZERO_DATA
16 DAC_IIC_SDA
17 DAC_IIC_SCL
18 DIR_CKST
19 DIR_STA_DATA
20 DIR_RST
21 DIR_MISO
22 DIR_MOSI
23 DIR_SPICLK
24 DIR_CE
25 VSS
26 VCC
27 DSP_INT
28 NC
29 DSP_RST
30 NC
31 FS_SDA
32 FS_SCL
33 C
34 VSS
35 VCC
36 DSD_SEL
37 DSP_CE
38 INITX
39 DSP_MISO
40 DSP_MOSI
41 DSP_SPICLK
42 NC
43 FAN_CONT0
FAN_CONT1,
44, 45
FAN_CONT2
46 PE0/MD1
47 MD0
48 X0
49 X1
50 VSS
51 VCC
52 POWER_LED
53 LED_LAT
54 LED_DAT
55 LED_CLK
56 LED_CE
57 AD_KEY1
58 NC
59 SIRCS_IN
I/O
- Power supply terminal (+3.3V)
I Interrupt request signal input from the USB controller
- Not used
O Reset signal output to the USB controller
I AUTO STANDBY (DIGITAL INPUT ONLY) switch input terminal
I EQUALIZER switch input terminal
O Reset signal output to the D/A converter
I Interrupt request signal input from the digital audio interface receiver
I Error signal input from the digital audio interface receiver
I Non-PCM detection signal input from the digital audio interface receiver
I DSD detection signal input from the USB audio processor
- Not used
I FS rate capture signal input from the DSP
I Zero data detection signal input from the D/A converter
I/O Two-way serial data bus with the D/A converter
O Serial data transfer clock signal output to the D/A converter
I Data muting signal input from the digital audio interface receiver
I Not used
O Reset signal output to the digital audio interface receiver
I Serial data input from the digital audio interface receiver
O Serial data output to the digital audio interface receiver
O Serial data transfer clock signal output to the digital audio interface receiver
O Chip enable signal output to the digital audio interface receiver
- Ground terminal
- Power supply terminal (+3.3V)
I Interrupt request signal input from the DSP
- Not used
O Reset signal output to the DSP
- Not used
I/O Two-way I2C serial data bus with the USB controller
O Serial data transfer clock signal output to the USB controller
- External capacitor connection terminal
- Ground terminal
- Power supply terminal (+3.3V)
O PCM/DSD selection signal output to the data/clock selector
O Chip enable signal output to the DSP
I Reset signal input from the reset signal generator and USB controller
I Serial data input from the DSP
O Serial data output to the DSP
O Serial data transfer clock signal output to the DSP
- Not used
O Fan on/off control signal output to the fan motor drive
O Fan motor speed control signal output to the fan motor drive
I Mode setting terminal
I Mode selection signal input from the USB controller
O System clock output terminal (4 MHz)
I System clock input terminal (4 MHz)
- Ground terminal
- Power supply terminal (+3.3V)
O LED drive signal output terminal for power on indicator
O Latch signal output to the LED drive selector
O Data output to the LED drive selector
O Clock signal output to the LED drive selector
O Chip enable signal output to the LED drive selector
I INPUT SELECTOR switch input terminal
- Not used
I SIRCS signal input from the remote control receiver
Description
"L": reset
"L": tuned for SS-HA3, "H": bypass
"L": reset
"L": PCM, "H": DSD
"L": reset
"L": reset
"L": DSD, "H": PCM
"H": fan on
"H": LED on
UDA-1
"L": auto standby on
"L": reset
57