VSX-74TXVi
250
1
2
3
4
1
2
3
4
C
D
F
A
B
E
Pin Function
CD4094BPW (DIGITAL MOTHER ASSY: IC103)
• Expansion 2 IC
No.
Mark
Pin Name
I/O
Pin Function
101 P12/D10
D10
O/L
Data input/output of FLASH MEMORY communication
102 P11/D9
D9
O/L
Data input/output of FLASH MEMORY communication
103 P10/D8
D8
O/L
Data input/output of FLASH MEMORY communication
104 P07/AN07/D7
D7
O/L
Data input/output of FLASH MEMORY communication
105 P06/AN06/D6
D6
O/L
Data input/output of FLASH MEMORY communication
106 P05/AN05/D5
D5
O/L
Data input/output of FLASH MEMORY communication
107 P04/AN04/D4
D4
O/L
Data input/output of FLASH MEMORY communication
108 P03/AN03/D3
D3
O/L
Data input/output of FLASH MEMORY communication
109 P02/AN02/D2
D2
O/L
Data input/output of FLASH MEMORY communication
110 P01/AN01/D1
D1
O/L
Data input/output of FLASH MEMORY communication
111 P00/AN00/D0
D0
O/L
Data input/output of FLASH MEMORY communication
112 P117
GAIN CONT2
O/L
ANALOG GAIN CONTROL
113 P116
EVOL DT1
O/L
Electronic VOL & function IC communication
114 P115
TUNER DI
O/L
TUNER module communication
115 P114
TUNER CLK
O/L
TUNER module communication
116 P113
TUNER DO
I
TUNER module communication
117 P112
TUNER CE
O/L
TUNER module communication
118 P111
AMUTE
O/L
AMUTE (L: MUTE, H: MUTE OFF)
119 P110
MRMUTE
O/L
MR MUTE (L: MUTE, H: MUTE OFF)
120 P107/AN7/KI3
DC PROTECT
I
DC abnormality detection (L detection)
121 P106/AN6/KI2
FAN STOP
I
FAN STOP detection (L at FAN turn: abnormal)
122 P105/AN5/KI1
TEMP1
I
Temperature detection (H: high temperature)
123 P104/AN4/KI0
XM/iPod ERR
I
(A/D) 0-2.0V: Normal, 2.0-3.5V: XM abnormality, 3.5-5.0V: iPod abnormality
124 P103/AN3
WATT IN
I
(A/D) Voltage detection for limitter control
125 P102/AN2
SIMUKE2
I
(A/D) Destination distinction
126 P101/AN1
SIMUKE1
I
(A/D) Destination distinction
127 Avss
Avss(GND)
−
Ground
128 P100/AN0
HDMI/ DSP REQ
O/L
REQ output for HDMI/DSP microcomputer
No.
Pin Name
Pin Function
Active
1
232SW
Switch the RS232C path. L: MAIN controller, H: DSP controller
H
2
MRSP2
When SBch outputs MR&S: H (Movement the same as MRSP)
H
3
FAN DRIVE
When FAN turns: H
H
4
INPUT ATT
H at ATT ON
H
5
12VON/OFF
Set to H when rewriting MAIN and DSP controllers.
H
6
XMPOW
XM antenna power supply. Always H. Set to L when detecting the abnormal.
H
7
iPodPOW
iPod supply power supply. Always H. Set to L when detecting the abnormal.
H
8
RDS FM+/XM
RESET
Power supply ON/OFF of RDS decoder. H at ON. XM RESET. H at RESET.
Notes: RESET of XMDTIC is L, but output with the reverse logic so that inverting circuit exists.
H/H