Sony STR-K790 Service Manual page 40

STR-K790
Pin No. Pin Name
46 TUNER CLK
47 TUNER DATA
48 STOP
49 MD0
50 MD1
51 MD2
52 RDS_CLK
53 RDS_DATA
54 SIRCS
55 HP_DETECT
56 POWER_KEY
57 ADCC_INT
58 POWER_RY
59 VOL IC_CL
60 VOL IC_DA
61 PROTECTOR
62 HP_RY
63 FUSE_DETECT
64 VOL_ENCODER (B)
65 VOL_ENCODER (A)
66 FRONT_RY/DG51_FB
67 FRONT_B_RY/DG51_FA
68 DC-CONTROL
69 C/REAR/SB_RY
70 SW_RY
71 NC
72 BRIDGABLE_RY
73 DO/SD/ST
74 SLATCH
75 V_SW3
76 V_SW4
77 RSTX
78 COMP MUTE
79 XIA
80 XOA
81 VSS
82 X0
83 X1
84 VCC3
85 HDMI_S2
86 HDMI_S1
87 HDMI_OED
88 HDMI_PRE
89 HDMI_CTRL
90 COMP_S2
91 COMP_S1
92 BST_SEL
93 XMODE
94 CKSEL 1
40
I/O
O Tuner clock signal output
O Tuner data signal output
I AC off detect signal input
I Operation mode setting input
I Operation mode setting input
I Operation mode setting input
I RDS clock signal input (AEP, UK only)
I RDS data signal input (AEP, UK only)
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
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
O Sub woofer control signal output
O Not used (Open)
O Bridgeable relay control output (not used)
I Frequency data signal input from the tuner
O Latch signal output to the tuner
O Composite video signal select 3 (not used)
O Composite video signal select 4 (not used)
I System reset input
O Composite video muting signal output (not used)
— Not used (Open)
— Not used (ground)
— Ground terminal
— Connection for a crystal resonator
— Connection for a crystal resonator
— Power supply (+3.3V)
O HDMI select 2 (not used)
O HDMI select 1 (AEP, UK only)
O HDMI output enable (AEP, UK only)
O HDMI PRE (AEP, UK only)
O HDMI board control (AEP, UK only)
O Composite video select 2 (not used)
O Composite video select 1 (not used)
O BST signal output terminal
O Reset signal output to DIR
O CKSEL control signal output to DIR
Description