Sony STR-K790 Service Manual - Page 40

Pin No., Pin Name, Description

Page 40 highlights

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

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