Read Sony CDX-GT575UE / CDX-GT575UI / CDX-GT575UP / CDX-GT625UI / CDX-GT627UV Service Manual online
CDX-GT575UE/GT575UI/GT575UP/GT625UI/GT627UV
34
• IC Pin Function Description
MAIN BOARD IC501 R5F3650ECDZ98FB (MAIN SYSTEM CONTROLLER) (GT575UE/GT575UI/GT625UI/GT627UV)
IC501 R5F3650KCDZ95FB (MAIN SYSTEM CONTROLLER) (GT575UP)
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 signal receiver
3
UNISO
-
Not used
4
UNISI
-
Not used
5
UNISCK
-
Not used
6
BYTE
I
External data bus width select signal input Connect to VSS in this unit
7
CNVSS
I
Flash write signal input terminal Normally operation: “L”, Flash write: “H”
8
XIN
I
Low speed operation clock signal input terminal (32.768 kHz)
9
XOUT
O
Low speed operation clock signal output terminal (32.768 kHz)
10
RESET
I
System reset signal input terminal Not used
11
OSCOUT
O
High speed operation clock signal output terminal (7.92 MHz)
12
VSS
-
Ground terminal
13
OSCIN
I
High speed operation clock signal 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
MEC_SELFSW
I
Detection signal input from the CD section (self switch)
17
BUIN
I
Back up power supply detection signal input terminal “L” is input at low voltage
18
NCO
-
Not used
19
RC_IN1
I
Rotary remote commander shift key input terminal
20
MC_RX
I
Serial data input from the sub system controller
21
NCO
-
Not used
22
MC_TX
O
Serial data output to the sub system controller
23
NCO
-
Not used
24
SYNC_OUT
O
Synchronize signal output to the DC/DC converter
25
SYNC_PRE5V_ON
-
Not used
26
BEEP
O
Beep sound drive signal output to the power amplifi er
27
I2C_SCK
O
IIC serial clock signal output terminal
28
I2C_SIO
I/O
IIC two-way serial data bus terminal
29
FW_TXD
O
Flash writer data output terminal
30
FW_RXD
I
Flash writer data input terminal
31
FW_CLK
I
Flash writer clock signal output terminal
32
FW_BUSY
O
Flash writer busy signal output terminal
33
XM_TX
O
Serial data output to the SIRIUSXM IN connector (GT575UP only)
34
XM_RX
I
Serial data input from the SIRIUSXM IN connector (GT575UP only)
35
XM_POWER_EN
O
Power supply on/off control signal output to the SIRIUSXM IN connector (GT575UP only)
36 to 38
NCO
-
Not used
39
EPM
O
EPM signal output terminal Fixed at “L” in this unit
40
NCO
-
Not used
41
MEC_LOAD
O
Motor (Loading) signal output to the CD section
42
MEC_EJECT
O
Motor (Eject) signal output to the CD section
43
NCO
-
Not used
44
CE
I
Chip enable signal input terminal Fixed at “H” in this unit
45
HIT2_DATA
I/O
IIC two-way serial data bus with the FM/AM tuner unit
46
HIT2_SCL
O
IIC serial clock signal output to the FM/AM tuner unit
47
HIT2_RESET
O
Reset signal output to the FM/AM tuner unit
48 to 50
NCO
-
Not used
51
EN_SYS
O
Power supply on/off control signal output to the DC/DC converter
52
IPOD
-
Not used
53
NCO
-
Not used
54
NA
-
Not apply
55
ACC_IN
I
Accessory power detection signal input terminal “L”: accessory power on
56
ATT
O
Muting on/off control signal output terminal “H”: muting on
57
DIAG
I
Diagnostic signal input from the power amplifi er
58
AMPSTB
O
Standby control signal output to the power amplifi er
59
GHOST_RST
O
Reset signal output to the sub system controller
60
VCC2
-
Power supply terminal (+3.3V)
Ver. 1.1
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