Read Sony STR-DA90ESG Service Manual online
– 10 –
Pin No.
Pin Name
I/O
Function
42
MODE1
I
Mode selection terminal (fixed at “H”)
43
MODE2
I
Mode selection terminal (fixed at “L”)
44
STANDBY
I
Hardware standby signal input terminal (fixed at “H”)
45
STOP
I
Stop signal input terminal
46
U-RESET
I
System reset signal input from the master controller (IC3413) “L”: reset
47
U-SREQ
O
Communication request signal output to the master controller (IC3413)
48
U-MREQ
I
Communication request signal input from the master controller (IC3413)
49
U-DATA
I/O
Serial data in/out with the master controller (IC3413)
50
U-CLOCK
I
Serial data reading clock signal input from the master controller (IC3413)
51
HIFI/ES
I
Setting terminal for the destination (fixed at “H”)
52
AUBUS-IN
I
Audio bus signal input terminal
53
AUBUS-OUT
O
Audio bus signal output terminal
54
FUNCTION-B
I
Jog dial pulse input of the rotary encoder (RV101 FUNCTION)
55
FUNCTION-A
I
Jog dial pulse input of the rotary encoder (RV101 FUNCTION)
56
OUT-OPEN
O
Motor drive signal output to the door open/close motor drive (IC107)
57
OUT-CLOSE
O
Motor drive signal output to the door open/close motor drive (IC107)
58
SW-OPEN
I
Door open detect sensor (PH102) input terminal
59
SW-CLOSE
I
Door close detect sensor (PH103) input terminal
60
—
—
Not used (open)
61
SWBAL
I
Balance volume on/off detect signal input terminal
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
LED-TUNER
O
LED drive signal output terminal “H”: LED on (for function TUNER indicator)
68
LED-PHONO
O
LED drive signal output terminal “H”: LED on (for function PHONO indicator)
69
LED MUTE
O
LED drive signal output terminal “H”: LED on (for MUTING indicator)
70
LED-LEARNING
O
LED drive signal output terminal “H”: LED on Not used (open)
71
LED D.PASS
O
LED drive signal output terminal “H”: LED on (for DIRECT PASS indicator)
72
LED-INPUT
O
LED drive signal output terminal “H”: LED on Not used (open)
73
LED VOL
O
LED drive signal output terminal “H”: LED on (for MASTER VOLUME illumination)
74
LED BASS.B
O
LED drive signal output terminal “H”: LED on (for BASS BOOST indicator)
75
SP-A
I
Speaker select switch (S135) input terminal “H”: speaker A on
76
SP-B
I
Speaker select switch (S135) input terminal “H”: speaker B on
77
PW-SW
I
Power switch (S137) input terminal
78
LED-TV
O
LED drive signal output terminal “H”: LED on (for function TV/DBS indicator)
79
LED-LD
O
LED drive signal output terminal “H”: LED on (for function LD/DVD indicator)
80
—
I
Not used (fixed at “L”)
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