Sony DSX-A50BT / DSX-A50BTE Service Manual ▷ View online
DSX-A50BT/A50BTE
29
• IC Pin Function Description
MAIN BOARD IC101 R5F3650KCDZ98FB (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 remote control receiver
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 USB controller
17
BUSY
I
Busy signal input from the USB controller
18
SYSRST
O
Reset signal output to the USB controller “L”: reset
19
CE
O
Chip enable signal output to the USB controller
20
SDI
I
Serial data input from the USB controller
21
SCK
O
Serial data transfer clock signal output to the USB controller
22
SDO
O
Serial data output to the USB controller
23
USB_IN
I
USB device detection signal input from the USB controller
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 USB controller
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 switch on/off control signal output to the DC/DC converter “H”: switch on
49
NC
-
Not used
50
FLT_USB
I
USB power supply switch fault status signal input from the DC/DC converter
51
EN_SYS
O
VBUS power supply 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 supply 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
PIC_ERR
I
Error detection signal input from the power amplifi er “L”: error
64
NC
-
Not used
65
BT_MUTE (A50)
I
Muting on/off control signal input from the Bluetooth section “H”: muting on
66
BU_IN
I
Back-up power detection signal input terminal
DSX-A50BT/A50BTE
30
Pin No.
Pin Name
I/O
Description
67 to 71
NC
-
Not used
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 to the DC/DC converter “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
76
BT_RX (A50)
I
Serial data input from the Bluetooth section
77, 78
NC
-
Not used
79
RE_IN0
I
Jog dial pulse signal input from the rotary encoder (A phase input) (for volume)
80
RE_IN1
I
Jog dial pulse signal input from the rotary encoder (B phase input) (for volume)
81
BT_MIC_ON (A50)
O
Power supply on/off control signal output terminal for microphone signal “H”: power on
82
BT_RTS (A50)
O
Return to send signal output to the Bluetooth section
83
BT_CTS (A50)
I
Clear to send signal input from the Bluetooth section
84
BT_RESET (A50)
O
Reset signal output to the Bluetooth section “L”: reset
85
BT_POWER (A50)
O
Power supply on/off control signal output to the Bluetooth section “H”: power on
86
NC
-
Not used
87
SYS_ON
O
System on/off control signal output terminal “L”: system on
88
RCIN1
I
Rotary commander shift key input terminal
89
KEYACK0
I
Key acknowledge detection signal input terminal for the rotary commander key entry
90
KEYACK1
I
Key acknowledge detection signal input terminal for the front panel key entry
91
NC
-
Not used
92, 93
KEYIN1, KEYIN0
I
Front panel key signal 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 liquid crystal display driver
99
LCD_SO
O
Serial data output to the liquid crystal display driver
100
LCD_CLK
O
Serial data transfer clock signal output to the liquid crystal display driver
DSX-A50BT/A50BTE
31
MAIN BOARD IC201 LC786800E-00US-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 (Bluetooth L-ch) input terminal
12
R2_IN
I
Audio signal (Bluetooth R-ch) input terminal
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, ATEST02
-
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 26
NC
-
Not used
27 to 30
GP50 to GP53
I/O
Not used
31
DVDD
-
Power supply terminal (+3.3V) (for digital system)
32
DVSS
-
Ground terminal (for digital system)
33 to 40
GP30 to GP37
I/O
Not used
41
DVDD
-
Power supply terminal (+3.3V) (for digital system)
42
DVSS
-
Ground terminal (for digital system)
43
REG1_EXTR
-
Internal regulator reserve terminal
44
DVDD15
-
External capacitor connection terminal for internal regulator
45
TXD1
O
Serial data output terminal Not used
46
RXD1
I
Serial data input terminal Not used
47, 48
OSC_CTL12,
OSC_CTL13
I
Clock control signal input terminal 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
57
USB_IN
O
USB device detection signal output to the system controller
58, 59
GP40, GP41
I/O
Not used
60
WDT_MON
O
Watch-dog timer status monitor output to the system controller
61
CMD_ERR
O
Command error signal output to the system controller
62 to 65
GP44 to GP47
I/O
Not used
66
DVDD
-
Power supply terminal (+3.3V) (for digital system)
67
DVSS
-
Ground terminal (for digital system)
68
UDM1
I/O
Two-way USB data (–) bus terminal
69
UDP1
I/O
Two-way USB data (+) bus terminal
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
DVSS
-
Ground terminal (for oscillation circuit)
DSX-A50BT/A50BTE
32
Pin No.
Pin Name
I/O
Description
77
AFILT
O
Charge pump output terminal (for audio PLL)
78
VVDD2
-
Power supply terminal (+3.3V) (for audio PLL)
79
VVDD3
-
Power supply terminal (+3.3V) (for system PLL)
80
DVDD
-
Power supply terminal (+3.3V) (for digital system)
81
DVSS
-
Ground terminal (for digital system)
82
CP_SCL
O
Serial data transfer clock signal output terminal Fixed at “H” in this unit
83
SP_SDA
I/O
Two-way serial data bus terminal Fixed at “H” in this unit
84, 85
GP07, GP06
I/O
Not used
86
CP_RESET
O
Reset signal output terminal Not used
87
TEST0
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
I
Reset signal input terminal (for JTAG) Normally: fi xed at “L”
92
JTCK
I
Clock signal input terminal (for JTAG) Normally: fi xed at “L”
93
JTDI
I
Data input terminal (for JTAG) Normally: fi xed at “L”
94
JTMS
I
Mode selection signal input terminal (for JTAG) Normally: fi xed at “H”
95
JTDO
O
Data output terminal (for JTAG) Normally: open
96
JTRTCK
O
Return clock signal output terminal (for JTAG) Normally: open
97
TEST1
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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