Read Sony HT-1700D / HT-5500D / HT-DDW740 / HT-DDW840 / STR-K740P / STR-K840P Service Manual online
26
STR-K740P/K840P
Pin No.
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
I/O
I
O
O
I
I
I
I
I
I
I
O
O
O
O
I
O
I
O
O
O
O
O
O
O
O
I
I
O
—
—
—
—
—
—
I
O
O
O
O
O
O
O
O
O
O
O
O
I
I
I
Pin Name
MD2
RDS CLOCK
RDS DATA
SIRCS
FUSE DETECT
POWER KEY
JOG (B)
JOG (A)
VOL (B)
VOL (A)
DIN
CLK
FL STB
CONTROL A1 OUT
CONTROL A1 IN
POWER RELAY
PROTECTOR
HEADPHONE RELAY
WOOFER RELAY
REAR RELAY
CENTRE RELAY
PREOUT/FRONT RELAY
TUNED
STEREO
MUTING
DO
RSTX
SLATCH
X1A
X0A
VSS
X0
X1
VCC3
NC
NC
SW4
SW3
SW2
SW1
SECTION1
SECTION2
XMODE
CKSEL 1
CLK
CE
DI
DO
ERROR
XSTATE
Description
Operation mode setting input
RDS clock signal output (Not used)
RDS data signal output (Not used)
Data signal input from the remote control sensor
Fuse detect signal input
Power switch key detect signal input
Jog dial signal input from the rotary encoder
Jog dial signal input from the rotary encoder
Jog dial signal input from the rotary encoder
Jog dial signal input from the rotary encoder
Data signal output to the FL tube driver
Clock signal output to the FL tube driver
Strobe signal output to the FL tube driver
Control A1 signal output
Control A1 signal input
Power relay control signal output
Protector status detect signal input
Headphone relay control signal output
Woofer relay control signal output
Rear speaker relay control signal output
Centre speaker relay control signal output
Front speaker relay control signal output
Tuning a frequency signal input from the tuner
Stereo tuning signal input from the tuner
Muting signal output to the tuner
Frequency data signal input from the tuner
System reset
Latch signal output to the tuner
Not used
Not used
Ground
Connection for a crystal resonator
Connection for a crystal resonator
Power supply
Not used
Not used
Video select control signal output
Video select control signal output
Video select control signal output
Video muting control signal output
Optical in selector control signal output
Optical in selector control signal output
Reset signal output to DIR
CKSEL control signal to DIR
Clock signal output to DIR
Chip enable signal output to DIR
Data signal output to DIR
Data signal input from DIR
PLL error muting signal input from DIR
XSTATE data signal input from DIR
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