Sony DSX-A40UE / DSX-A40UI / DSX-A42UI Service Manual ▷ View online
DSX-A40UE/A40UI/A42UI
21
• IC Pin Function Description
MAIN BOARD IC101 R5F3650KCDZ94FB (SYSTEM CONTROLLER)
Pin No.
Pin Name
I/O
Description
1
NOSE_SW
I
Front panel remove/attach detection signal input terminal “L”: front panel is attached
2
SIRCS
I
Remote control signal input from the front panel block
3 to 5
NC
-
Not used
6
BYTE
I
External data bus width selection signal input terminal
7
CNVSS
I
Processor mode selection signal input terminal
8
XIN
I
Sub system clock input terminal (32.768 kHz)
9
XOUT
O
Sub system clock output terminal (32.768 kHz)
10
RESET
I
System reset signal input from the reset signal generator “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”
11
OSCOUT
O
Main system clock output terminal (7.92 MHz)
12
VSS
-
Ground terminal
13
OSCIN
I
Main system clock input terminal (7.92 MHz)
14
VCC1
-
Power supply terminal (+3.3V)
15
NMI
I
Non-maskable interrupt signal input terminal Fixed at “H” in this unit
16
CMD_ERR
I
Command error signal input from the audio DSP “H”: error
17
BUSY
I
Busy signal input from the audio DSP “L”: busy
18
SYSRST
O
Reset signal output to the audio DSP “L”: reset
19
CE
O
Chip enable signal output to the audio DSP
20
SDI
I
Serial data input from the audio DSP
21
SCK
O
Serial data transfer clock signal output to the audio DSP
22
SDO
O
Serial data output to the audio DSP
23
USB_IN
I
USB device detection signal input from the audio DSP “L”: USB device is connected
24
SYNC_OUT
O
Frequency control signal output to the DC/DC converter
25
WDT_MON
I
Watch-dog timer status monitor input from the audio DSP
26
BEEP
O
Beep sound output to the power amplifi er
27, 28
NC
-
Not used
29
FW_TXD
O
Serial data output terminal for fl ash writing
30
FW_RXD
I
Serial data input terminal for fl ash writing
31
FW_CLK
I
Serial data transfer clock signal input terminal for fl ash writing
32
FW_BUSY
O
Busy signal output terminal for fl ash writing
33 to 38
NC
-
Not used
39
EPM
O
EPM signal output terminal Fixed at “L” in this unit
40 to 43
DEBUG_1 to
DEBUG_4
O
Debug terminal Not used
44
CE
O
Chip enable signal output terminal Fixed at “H” in this unit
45
HIT2_SDA
I/O
Two-way serial data bus with the tuner unit
46
HIT2_SCL
O
Serial data transfer clock signal output to the tuner unit
47
HIT2_RESET
O
Reset signal output to the tuner unit “L”: reset
48
EN_USB
O
USB power on/off control signal output to the DC/DC converter “H”: power on
49
NC
-
Not used
50
FLT_USB
I
USB power fault status signal input from the DC/DC converter
51
EN_SYS
O
VBUS power on/off control signal output to the DC/DC converter “H”: power on
52
IPOD
O
Not used
53
NC
-
Not used
54
TELATT
I
Telephone attenuator detection signal input terminal Fixed at “L” in this unit
55
ACC_IN
I
Accessory power detection signal input terminal
56
ATT
O
Audio muting on/off control signal output terminal “H”: muting on
57
AMP_MUTE
O
Amplifi er muting on/off control signal output to the power amplifi er “H”: muting on
58
AMPSTB
O
Standby signal output to the power amplifi er “L”: standby
59
ILL_ON
O
Power on/off control signal output terminal for illumination LED “H”: power on
60
VCC2
-
Power supply terminal (+3.3V)
61
NC
-
Not used
62
VSS
-
Ground terminal
63, 64
NC
-
Not used
65
BT_MUTE (A50)
I
Muting on/off control signal input from the Bluetooth section Not used
66
BU_IN
I
Back-up power detection signal input terminal
67 to 71
NC
-
Not used
DSX-A40UE/A40UI/A42UI
22
Pin No.
Pin Name
I/O
Description
72
AMP_REM
O
Amplifi er remote output on/off control signal output terminal “H”: output on
73
SYS_EN
O
System power on/off control signal output terminal “H”: power on
74
AUDIO_EN
O
Power supply on/off control signal output terminal for audio section “H”: power on
75
BT_TX (A50)
O
Serial data output to the Bluetooth section Not used
76
BT_RX (A50)
I
Serial data input from the Bluetooth section Not used
77, 78
NC
-
Not used
79
RE-IN0
I
Jog dial pulse signal input from the rotary encoder (A phase input)
80
RE-IN1
I
Jog dial pulse signal input from the rotary encoder (B phase input)
81
BT_MIC_ON (A50)
O
Power supply on/off control signal output terminal for microphone signal Not used
82
BT_RTS (A50)
O
Return to send signal output to the Bluetooth section Not used
83
BT_CTS (A50)
I
Clear to send signal input from the Bluetooth section Not used
84
BT_RESET (A50)
O
Reset signal output to the Bluetooth section Not used
85
BT_POWER (A50)
O
Power supply on/off control signal output to the Bluetooth section Not used
86
NC
-
Not used
87
SYS_ON
O
System power on/off control signal output terminal “L”: power on
88
RCIN1
I
Rotary commander shift key input terminal
89
KEYACK0
I
Key acknowledge signal (wake up signal) input from the rotary commander
90
KEYACK1
I
Key acknowledge signal (wake up signal) input from the front panel block
91
NC
-
Not used
92, 93
KEYIN1, KEYIN0
I
Front panel key input terminal
94
AVSS
-
Ground terminal (for A/D converter)
95
RC_IN0
I
Rotary commander key input terminal
96
AVRH
-
Reference voltage terminal (+3.3V) (for A/D converter)
97
AVDD
-
Power supply terminal (+3.3V) (for A/D converter)
98
LCD_CE
O
Chip enable signal output to the front panel block
99
LCD_SO
O
Serial data output to the front panel block
100
LCD_CLK
O
Serial data transfer clock signal output to the front panel block
DSX-A40UE/A40UI/A42UI
23
MAIN BOARD IC201 LC786800E-06US-H
(USB CONTROLLER, INPUT SELECTOR, AUDIO DSP, ELECTRICAL VOLUME)
(USB CONTROLLER, INPUT SELECTOR, AUDIO DSP, ELECTRICAL VOLUME)
Pin No.
Pin Name
I/O
Description
1
LFOUT
O
Audio signal (front L-ch) output terminal
2
LROUT
O
Audio signal (rear L-ch) output terminal
3
LVRIN
I
Audio signal (L-ch) input terminal
4
DACOUT_L
O
Audio signal (L-ch) output terminal
5
DACOUT_R
O
Audio signal (R-ch) output terminal
6
RVRIN
I
Audio signal (R-ch) input terminal
7
RROUT
O
Audio signal (rear R-ch) output terminal
8
RFOUT
O
Audio signal (front R-ch) output terminal
9
L1_IN
I
Audio signal (tuner L-ch) input terminal
10
R1_IN
I
Audio signal (tuner R-ch) input terminal
11
L2_IN
I
Audio signal (L-ch) input terminal Not used
12
R2_IN
I
Audio signal (R-ch) input terminal Not used
13
L3_IN_P
I
Audio signal (AUX L-ch) input terminal (positive)
14
L3_IN_N
I
Audio signal (AUX L-ch) input terminal (negative)
15
R3_IN_P
I
Audio signal (AUX R-ch) input terminal (positive)
16
R3_IN_N
I
Audio signal (AUX R-ch) input terminal (negative)
17, 18
ATEST01 (OPN),
ATEST02 (OPN)
-
Analog test terminal Not used
19
VREFOUT
O
External reference voltage output terminal
20
VREF_ADC
-
External capacitor connection terminal for audio A/D converter reference voltage
21
AVSS2
-
Ground terminal (for A/D converter)
22
AVDD2
-
Power supply terminal (+3.3V) (for A/D converter)
23 to 30
NC
-
Not used
31
DVDD
-
Power supply terminal (+3.3V) (for digital system)
32
DVSS
-
Ground terminal (for digital system)
33 to 40
NC
-
Not used
41
DVDD
-
Power supply terminal (+3.3V) (for digital system)
42
DVSS
-
Ground terminal (for digital system)
43
REG1_EXTR (OPN)
-
Internal regulator reserve terminal Not used
44
DVDD15
-
External capacitor connection terminal for internal regulator
45
iTXD
O
Serial data output terminal Not used
46
iRXD
I
Serial data input terminal Not used
47
SMONI
O
Watch-dog timer status monitor output to the system controller
48
NC
-
Not used
49
DVDD
-
Power supply terminal (+3.3V) (for digital system)
50
DVSS
-
Ground terminal (for digital system)
51
RESETB
I
Reset signal input from the system controller “L”: reset
52
SIFCK
I
Serial data transfer clock signal input from the system controller
53
SIFDI
I
Serial data input from the system controller
54
SIFDO
O
Serial data output to the system controller
55
SIFCE
I
Chip enable signal input from the system controller
56
BUSYB
O
Busy signal output to the system controller “L”: busy
57 to 61
NC
-
Not used
62
USBINS1
O
USB device detection signal output to the system controller “L”: USB device is connected
63 to 65
NC
-
Not used
66
DVSS
-
Ground terminal (for digital system)
67
DVDD
-
Power supply terminal (+3.3V) (for digital system)
68
UDM1
I/O
Two-way USB data (–) bus with the USB connector
69
UDP1
I/O
Two-way USB data (+) bus with the USB connector
70
DVSS
-
Ground terminal (for digital system)
71
UDM2
I/O
Two-way USB data (–) bus terminal Fixed at “L” in this unit
72
UDP2
I/O
Two-way USB data (+) bus terminal Fixed at “L” in this unit
73
XVDD
-
Power supply terminal (+3.3V) (for oscillation circuit)
74
X12IN
I
System clock input terminal (12 MHz)
75
X12OUT
O
System clock output terminal (12 MHz)
76
XVSS
-
Ground terminal (for oscillation circuit)
77
AFILT
O
Charge pump output terminal (for audio PLL)
DSX-A40UE/A40UI/A42UI
24
Pin No.
Pin Name
I/O
Description
78, 79
VVDD2, VVDD3
-
Power supply terminal (+3.3V) (for PLL)
80
DVSS
-
Ground terminal (for digital system)
81
DVDD
-
Power supply terminal (+3.3V) (for digital system)
82
CP-SCL
O
Serial data transfer clock signal output to the EEPROM
83
CP-SDA
I/O
Two-way serial data bus with the EEPROM
84
CP-nRES
O
Reset signal output terminal Not used
85
NC
-
Not used
86
CMDERR
O
Command error signal output to the system controller “H”: error
87
TEST0 (GND)
I
Test mode setting terminal Fixed at “L”
88
DVDD
-
Power supply terminal (+3.3V) (for digital system)
89
DVSS
-
Ground terminal (for digital system)
90
DVDD15
-
External capacitor connection terminal for internal regulator
91
JTRSTB (IPD)
I
Reset signal input terminal (for JTAG) Normally: fi xed at “L”
92
JTCK (IPD)
I
Clock signal input terminal (for JTAG) Normally: fi xed at “L”
93
JTDI (IPD)
I
Data input terminal (for JTAG) Normally: fi xed at “L”
94
JTMS (IPU)
I
Mode selection signal input terminal (for JTAG) Normally: fi xed at “H”
95
JTDO (O)
O
Data output terminal (for JTAG) Normally: open
96
JTRTCK (O)
O
Return clock signal output terminal (for JTAG) Normally: open
97
TEST1 (GND)
I
Test mode setting terminal Fixed at “L”
98
AVDD1
-
Power supply terminal (+3.3V) (for A/D converter)
99
AVSS1
-
Ground terminal (for A/D converter)
100
LRREF
-
External capacitor connection terminal for audio D/A converter and electrical volume reference
voltage
voltage
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