Read Sony STR-DA90ESG Service Manual online
– 13 –
S VIDEO BOARD IC815 LC86F5864A-5F53 (RC CONTROLLER)
Pin No.
Pin Name
I/O
Function
1
CE
I
Chip enable signal input from the on screen display controller (IC809)
2
INT1
I
Chip enable signal input terminal Not used (open)
3
INT2
I
Not used (fixed at “L”)
4
IR
I
Learn IR signal input terminal “H”: no signal
5
STOP
I
Stop signal input terminal
6
DAT
O
Infrared rays transmission data status signal output to the on screen display controller (IC809)
“H”: exist, “L”: noting
“H”: exist, “L”: noting
7
NG
O
Learning NG status signal output to the on screen display controller (IC809)
8
BACK UP NG
O
Backup NG status signal output to the on screen display controller (IC809)
9
M FULL
O
Memory full status signal output to the on screen display controller (IC809)
10
OK
O
Learning OK status signal output to the on screen display controller (IC809)
11
RS
O
Data reception ready signal output to the on screen display controller (IC809)
12
P37
O
Not used (fixed at “L”)
13
P40
O
Not used (fixed at “L”)
14
P41
O
Not used (fixed at “L”)
15
P42
O
Not used (fixed at “L”)
16
P43
O
Not used (fixed at “L”)
17
P44
O
Not used (fixed at “L”)
18
P45
O
Not used (fixed at “L”)
19
P46
O
Not used (fixed at “L”)
20
P47
O
Not used (fixed at “L”)
21
SDA
I/O
Two-way data bus with the external EEPROM Not used (fixed at “L”)
22
SCL
O
Clock signal output to the external EEPROM Not used (fixed at “L”)
23
VSS2
—
Ground terminal
24
VDD2
—
Power supply terminal (+5V)
25
SDA
I/O
Two-way data bus with the external EEPROM Not used (fixed at “L”)
26
SCL
O
Clock signal output to the external EEPROM Not used (fixed at “L”)
27
TXD
O
Transmit data output terminal Not used (fixed at “L”)
28
RXD
I
Receive data input terminal Not used (fixed at “L”)
29
UCLK
O
Clock signal output terminal Not used (fixed at “L”)
30
P25
O
Not used (fixed at “L”)
31
P26
O
Not used (fixed at “L”)
32
P27
O
Not used (fixed at “L”)
33
P00
O
Not used (fixed at “L”)
34
P01
O
Not used (fixed at “L”)
35
P02
O
Not used (fixed at “L”)
36
P03
O
Not used (fixed at “L”)
37
P04
O
Not used (fixed at “L”)
38
P05
O
Not used (fixed at “L”)
39
P06
O
Not used (fixed at “L”)
40
P07
O
Not used (fixed at “L”)
41
SO0
O
Serial data output to the on screen display controller (IC809)
42
SI0
I
Serial data input from the on screen display controller (IC809)
43
SCK0
I
Serial data reading clock signal input from the on screen display controller (IC809)
44
SO1
O
Serial data output terminal Not used (open)
45
SI1
I
Serial data input terminal Not used (open)
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