Sony STR-K995 Service Manual page 49

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DIGITAL BOARD IC1907 MB91F353APMT-G-112E1 (SYSTEM CONTROLLER)
Pin No. Pin Name
1 HDMI_MUTE
2 HDMI_RESET
3 XM_RESET
4 XMDACMDI
5 XMDACMC
6 XMDACMS
7
8 HP_DETECT
9 POWER_RY
10 VOL_CL
11 VOL_DA
12 PROTECTOR
13 BRIDGEABLE_RY
14 FUSE_DETECT
15 VOL ENCODER(B)_UP
16 VOL ENCODER(A)_DOWN
17 FRONT_B_RY
18
19
20 INPUT_ENCODER_A
21 INPUT_ENCODER_B
TE
L 13942296513
22
23
24 C/REAR/SB_RY
25 FRONT_RY
26 TUN_DO
27 TUN_LAT
28 V_MUTE
29 V_COMP SW2
30 V_COMP SW1
31
32
33
34
35 TUNING_ENCODER_A
36 TUNING_ENCODER_B
37 PCM1609_RESET
38 DIR_XMODE
39 DIR_CLK_SEL
40
41 TC74HC153_A
42 TC74HC153_B
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43
44
45 DIR_CLK
.
46 DIR_CE(LAT)
47
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I/O
I HDMI mute signal input
O HDMI reset signal output
O Not used. (Open)
O XM D/A converter MDI signal output
O XM D/A converter MC signal output
O Not used. (Open)
SUB_T O Sub T signal output
I Headphone detect signal input
O Power relay control signal output
O Volume serial clock signal output
O Volume serial latch signal output
I Protector control signal input
O Bridgeable relay control signal output
I Not used. (Fixed to "H" (+3.3V))
I Volume encoder signal input (up)
I Volume encoder signal input (down)
O Front B speakers relay control signal output
VSS — Ground pin
VCC — Power supply pin (+3.3 V)
I Input select encoder signal input A
I Input select encoder signal input B
SW_RY O Sub woofer relay control signal output
HP_RY O Headphone relay control signal output
O Center/surround speaker relay control signal output
O Front speaker relay control signal output
I Tuner serial data signal input
O Tuner serial latch signal output
O Video mute control signal output
O Component video select switch control signal output 2
O Component video select switch control signal output 1
V_SW4 O Video input select switch control signal output 4
V_SW3 O Video input select switch control signal output 3
V_SW2 O Video input select switch control signal output 2
V_SW1 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
VSS — Ground pin
O Input select switch control signal output A
O Input select switch control signal output B
VSS — Ground pin
VCC x ao — Power supply pin (+3.3 V)
y
O Serial clock signal output for digital audio interface IC
i
O Serial latch signal output for digital audio interface IC
DIR_DI O Serial data signal output for digital audio interface IC
DIR_DO I Serial data signal input from digital audio interface IC
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