11.1 IC701 (M38503M2404F) : Micro Computer
Pin No.
Name
I/O
Function
1
VCC
I
Power supply (+5 V) terminal
2
VREF
I
Reference voltage input
3
AGND
-
GND terminal
4
CS
I
Chip select signal input
5
NC
-
Not used, open
6
REMCON
I
Remote control signal input
7
BACKUP
I
Power failure detect signal input
8
NC
-
Not used, open
9
SELDATA
O
Data signal output for input select IC (IC201 and IC202)
10
SELCLK
O
Clock signal output for input select IC (IC201 and IC202)
11
SELSTB
O
Strobe signal output for input select IC (IC201 and IC202)
12
POWERSW
I
Selector switch (S804) detect signal input
13
LEDCLK
O
Clock signal output for LED drive IC
14
LEDDATA
O
Data signal output for LED drive IC
15
CNVSS
-
Connected to GND
16
VRDOWN
O
Motor drive signal output (Volume down)
17
VRUP
O
Motor drive signal output (Volume up)
18
RESET
I
System reset signal input
19
XIN
I
Connected to the ceramic oscillator (8 MHz)
20
XOUT
O
Connected to the ceramic oscillator (8 MHz)
21
GND
-
GND terminal
22
BATELED
-
Battery level (empty) LED (D809) drive signal output (Not used, open)
23
BATFLED
-
Battery level (full) LED (D809) drive signal output (Not used, open)
24
VIALED
O
VIA LED drive signal output
25
VGALED
O
VGCA LED drive signal output
26
STABYLED
O
Stand by LED drive signal output
27
FRNTOUT
O
Front output control signal output
28
CSWSOUT
-
Center/S.woofer/Surround output control signal output (Not used, open)
29
PWRRLY
O
Power control signal output
30
CHRGRLY
-
Battery charge relay control signal output (Not used, open)
31
BATRLY
-
Battery drive relay control signal output (Not used, open)
Summary of Contents for SE-A909S
Page 4: ...12 Replacement Parts List 13 Cabinet Parts Location 14 Packaging PV PV...
Page 8: ...2 Location of Controls TOP PREVIOUS NEXT...
Page 9: ...TOP PREVIOUS NEXT...
Page 13: ...4 Operation Checks and Component Replacement Procedures TOP PREVIOUS NEXT...
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Page 15: ...TOP PREVIOUS NEXT...
Page 16: ...5 Type Illustration of ICs Transistors and Diodes TOP PREVIOUS NEXT TOP PREVIOUS NEXT...
Page 21: ...6 2 Schematic Diagram TOP PREVIOUS NEXT TOP PREVIOUS NEXT...
Page 22: ...7 Printed Circuit Board Diagram TOP PREVIOUS NEXT TOP PREVIOUS NEXT...
Page 23: ...8 Block Diagram TOP PREVIOUS NEXT TOP PREVIOUS NEXT...
Page 24: ...9 Wiring Connection Diagram TOP PREVIOUS NEXT TOP PREVIOUS NEXT...
Page 28: ...TOP PREVIOUS NEXT...
Page 41: ...13 Cabinet Parts Location TOP PREVIOUS NEXT TOP PREVIOUS NEXT...
Page 42: ...14 Packaging TOP PREVIOUS TOP PREVIOUS...
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