Sony SRS-GD50iP Service Manual page 22

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SRS-GD50iP
MAIN BOARD IC501 R5F3640DDA04FAR-128 (SYSTEM CONTROLLER)
Pin No.
Pin Name
1 to 3
NO USE
4
SIRCS_IN
5
P_CONT
6
ASEL0
7
ASEL1
8
BYTE
9
CNVss
10
HP_DET
11
HP_MUTE
12
RESET
13
Xout
14
Vss
15
Xin
16
Vcc1
17
NMI
18
DAMP_RESET
19
DAMP_PDN
20
AC-CUT
21
DAMP_MUTE
22
DAMP_SCL
23
DAMP_VALID
24
DAMP_SDA
25
DAMP_THM
26
DC_DET
27
IPOD_VBUS
28
IPOD_CP_RESET
29
IPOD_CP_CLK
30
IPOD_CP_DATA
31
UART_TXD1
32
UART_RXD1
33
PC_VBUS
34
IPOD_ACCDET
35
IPOD_TX
36
IPOD_RX
37
IPOD_DET
38
IPOD_ACCID
39
IPOD_ACCP
40
PC_CONNECT
41
NO USE
42
LED_PC_CONNECT
43 to 45
NO USE
46
NO USE
47
I2C_DATA
48
I2C_CLK
49
KEY_PC_CONNECT
LED_VOL_23 to
50 to 61
LED_VOL_12
62
Vcc
63
NO USE
64
Vss
65, 66
NO USE
67
KEY_ECO
68, 69
NO USE
70
EEPROM_SDA
71
EEPROM_SCL
72
LED_STANDBY
73
KEY_POWER
74
KEY_VOL_A
22
I/O
O
Not used
I
SIRCS signal input from the remote control receiver
O
Power supply on/off control signal output terminal
O
Audio input selection signal output terminal
O
Audio input selection signal output terminal
I
External data bus width selection signal input terminal
I
Change processor mode setting signal input terminal
I
Headphone connection detection signal input terminal
O
Headphone muting on/off control signal output terminal
System reset signal input from the reset signal generator
I
For several hundreds msec. after the power supply rises, "L" is input, then it change to "H"
O
System clock output terminal (5 MHz)
-
Ground terminal
I
System clock input terminal (5 MHz)
-
Power supply terminal (+3.3V)
I
Not used
O
Reset signal output to the digital power amplifi er1
O
Power down signal output to the digital power amplifi er1
I
AC cut detection signal input terminal
O
Muting on/off control signal output to the digital power amplifi er1
O
Serial data transfer clock signal output to the digital power amplifi er1
I
Valid signal input from the digital power amplifi er1
O
Serial data output to the digital power amplifi er1
I
Thermal warming signal input from the digital power amplifi er2
O
Speaker DC detection signal input terminal
O
VBUS power supply on/off control signal output terminal
O
Reset signal output to the EEPROM
I/O
Two-way I2C clock bus with the EEPROM
I/O
Two-way I2C data bus with the EEPROM
O
Transmit data output terminal
I
Receive data input terminal
O
Not used
O
Accessory detection signal output to the iPod connector
O
Serial data output to the iPod connector
O
Serial data input from the iPod connector
I
iPod connection detection signal input terminal
O
Accessory indicator signal output to the iPod connector
I
Wake-up signal input from the iPod connector
O
USB data from iPod connector on/off selection signal output terminal
O
Not used
O
VBUS detection signal output to the USB controller and D/A converter
O
Not used
I
Not used
O
Not used
O
Not used
I
SYNC on/off switch input terminal
O
LED drive signal output terminal for volume level indicator
-
Power supply terminal (+3.3V)
O
Not used
-
Ground terminal
O
Not used
I
Not used
O
Not used
I/O
Two-way I2C data bus with the EEPROM
I/O
Two-way I2C clock bus with the EEPROM
O
LED drive signal output terminal for STANDBY indicator
I
POWER key input terminal
I
Jog dial pulse input from the rotary encoder (A phase input) (for VOLUME)
Description
"H": power on
"L": iPod or USB, "H": LINE IN or USB
"L": iPod or LINE IN, "H": USB
"H": headphone is connected
"L": muting on
"L": reset
"L": reset
"L": power down
"L": AC cut
"L": muting on
"H": valid
"H": OK
"L": DC detect
"H": power on
"L": reset
"L": iPod is connected
"H": SYNC on
"H": LED on
"H": LED on
"H": USB data on

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