STR-DA90ESG - Sony Audio Service Manual (repair manual). Page 12

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Pin No.
Pin Name
I/O
Function
46
Not used (open)
47
Not used (open)
48
Not used (open)
49
AUBUS-IN
I
Audio bus signal input terminal
50
V.SIGNAL
I
Video signal exist/without    “H”: exist
51
SIRCS-IN
I
Sircs signal input from the remote control receiver (IC104)
52
NTSC/PAL
I
Detection signal input of the video system
53
AUBUS-OUT
O
Audio bus signal output terminal
54
SCART (8)
O
Scart P8 control signal output terminal    Not used (open)
55
SEETH
O
See-through mode signal output terminal    Not used (open)
56
Not used (open)
57
Not used (open)
58
Not used (open)
59
Not used (open)
60
IR-OFF
O
IR on/off control signal output terminal
61
BUSY
O
Busy signal output to the FL drive controller (IC105)
62
RESET
I
Reset signal input terminal    “L”: reset
63
GND
Ground terminal
64
XO
O
System clock signal output terminal (4MHz)
65
XI
I
System clock signal input terminal (4MHz)
66
VCC
Power supply terminal (+5V)
67
AD00
I/O
Two way data bus with the program ROM (IC820), S-RAM (IC821)
68
AD01
I/O
69
AD02
I/O
70
AD03
I/O
71
AD04
I/O
72
AD05
I/O
73
AD06
I/O
74
AD07
I/O
75
AD08
I/O
Two way data bus with the program ROM (IC820), S-RAM (IC822) and address data (for
address signal) output to the interface latch (IC818)
76
AD09
I/O
77
AD10
I/O
78
AD11
I/O
79
AD12
I/O
80
AD13
I/O
Two way data bus with the program ROM (IC820), S-RAM (IC822) and address data (for
address signal) output to the interface latch (IC818)
Two way data bus with the program ROM (IC820), S-RAM (IC821) and address data (for
address signal) output to the interface latch (IC816)
Two way data bus with the program ROM (IC820), S-RAM (IC821) and address data (for
address signal) output to the interface latch (IC818)
Two way data bus with the program ROM (IC820), S-RAM (IC822) and address data (for
address signal) output to the interface latch (IC816)
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