Sony STR-K990 Service Manual page 45

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Pin No. Pin Name
46 TUNER CLK
47 TUNER DATA
48
49
50
51
52 RDS_CLK
53 RDS_DATA
54
55 HP_DETECT
56 POWER_KEY
57 ADCC_INT
58 POWER_RY
59 VOL IC_CL
60 VOL IC_DA
61 PROTECTOR
62
63 FUSE_DETECT
64 VOL_ENCODER (B)
65 VOL_ENCODER (A)
66 FRONT_RY/DG51_FB
TE
67 FRONT_B_RY/DG51_FA
L 13942296513
68 DC-CONTROL
69 C/REAR/SB_RY
70
71
72 BRIDGABLE_RY
73 DO/SD/ST
74 SLATCH
75
76
77
78 COMP MUTE
79
80
81
82
83
84
85 HDMI_S2
86 HDMI_S1
87 HDMI_OED
88 HDMI_PRE
www
89 HDMI_CTRL
90 COMP_S2
91 COMP_S1
.
92 BST_SEL
93
94 CKSEL 1
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I/O
O Tuner clock signal output
O Tuner data signal output
STOP I AC off detect signal input
MD0 I Operation mode setting input
MD1 I Operation mode setting input
MD2 I Operation mode setting input
I RDS clock signal input (not used (Fixed to "L"))
I RDS data signal input (not used (Fixed to "L"))
SIRCS I Data signal input from the remote control sensor
I Headphone signal input
I Power switch key detect signal input
I ADCC interrupt input
O Power relay control signal output
O Volume IC clock signal output
O Volume IC data and latch signal output
I Protector status detect signal input
HP_RY O Headphone relay control signal output
I Fuse detect signal input
I Volume signal input from rotary encoder
I Volume signal input from rotary encoder
O Front A speaker relay control signal output
O Front B speaker control signal output
O Center speaker relay control signal output
O Center, rear, surround back speaker control signal output
SW_RY O Sub woofer control signal output
NC O Not used (Open)
O Bridgeable relay control output
I Frequency data signal input from the tuner
O Latch signal output to the tuner
V_SW3 O Composite video signal select 3
V_SW4 O Composite video signal select 4
RSTX I System reset input
O Composite video muting signal output
XIA — Not used (Open)
XOA — Ground terminal
VSS — Ground terminal
X0 — Connection for a crystal resonator
X1 — Connection for a crystal resonator
VCC3 — Power supply (+3.3V)
O HDMI select 2 (not used)
O HDMI select 1 (not used)
O HDMI output enable
O HDMI PRE
O HDMI board control
x ao
O Composite video select 2
y
O Composite video select 1
i
O BST signal output terminal
XMODE O Reset signal output to DIR
O CKSEL control signal output to DIR
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