49
STR-K995
Pin No.
Pin Name
I/O
Description
1
HDMI_MUTE
I
HDMI mute signal input
2
HDMI_RESET
O
HDMI reset signal output
3
XM_RESET
O
Not used. (Open)
4
XMDACMDI
O
XM D/A converter MDI signal output
5
XMDACMC
O
XM D/A converter MC signal output
6
XMDACMS
O
Not used. (Open)
7
SUB_T
O
Sub T signal output
8
HP_DETECT
I
Headphone detect signal input
9
POWER_RY
O
Power relay control signal output
10
VOL_CL
O
Volume serial clock signal output
11
VOL_DA
O
Volume serial latch signal output
12
PROTECTOR
I
Protector control signal input
13
BRIDGEABLE_RY
O
Bridgeable relay control signal output
14
FUSE_DETECT
I
Not used. (Fixed to “H” (+3.3V))
15
VOL ENCODER(B)_UP
I
Volume encoder signal input (up)
16
VOL ENCODER(A)_DOWN
I
Volume encoder signal input (down)
17
FRONT_B_RY
O
Front B speakers relay control signal output
18
VSS
—
Ground pin
19
VCC
—
Power supply pin (+3.3 V)
20
INPUT_ENCODER_A
I
Input select encoder signal input A
21
INPUT_ENCODER_B
I
Input select encoder signal input B
22
SW_RY
O
Sub woofer relay control signal output
23
HP_RY
O
Headphone relay control signal output
24
C/REAR/SB_RY
O
Center/surround speaker relay control signal output
25
FRONT_RY
O
Front speaker relay control signal output
26
TUN_DO
I
Tuner serial data signal input
27
TUN_LAT
O
Tuner serial latch signal output
28
V_MUTE
O
Video mute control signal output
29
V_COMP SW2
O
Component video select switch control signal output 2
30
V_COMP SW1
O
Component video select switch control signal output 1
O
Video input select switch control signal output 4
O
Video input select switch control signal output 3
O
Video input select switch control signal output 2
O
Video input select switch control signal output 1
I
Not used. (Fixed to “L”)
I
Not used. (Fixed to “L”)
O
Reset signal output for A/D and D/A converters IC
O
Mode select signal for digital audio interface IC
O
Serial clock select signal output for digital audio interface IC
40
VSS
—
Ground pin
41
TC74HC153_A
O
Input select switch control signal output A
42
TC74HC153_B
O
Input select switch control signal output B
43
VSS
—
Ground pin
44
VCC
—
Power supply pin (+3.3 V)
45
DIR_CLK
O
Serial clock signal output for digital audio interface IC
46
DIR_CE(LAT)
O
Serial latch signal output for digital audio interface IC
47
DIR_DI
O
Serial data signal output for digital audio interface IC
48
DIR_DO
I
Serial data signal input from digital audio interface IC
DIGITAL BOARD IC1907 MB91F353APMT-G-112E1 (SYSTEM CONTROLLER)
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