Sony STR-DB840 Service Manual page 51

Pin No. Pin Name
SDATA
56
SCLK
57
DATA IN
58
AUSTOP
59
STEREO
60
61, 62 NC
VSS
63
NC
64
TH
65
66 PROTEC
STOP
67
NC
68 to 71
VIDEO (SW4)
72
X1A
73
X0A
74
VIDEO (SW3)
75
76 VIDEO (SW2)
VIDEO (SW1)
77
HI-FI/QS
78
TAPE NO/YES
79
80 VIDEO 3 NO/YES
DTS NO/YES
81
ACMUTE
82
96K NO/YES
83
TMUTE
84
SMUTE
85
HSTX
86
87 MD2
MD1
88
89 MD0
REST
90
91 VSS
XO
92
XI
93
VCC
94
PO0, PO1
95, 96
RY-4/8
97
RY-PRE
98
99 RY-FRONT/A
RY-FRONT/B
100
RY-CENTER
101
RY-REAR
102
103 RY-WOOFER
RY-HP
104
RY-POWER
105
ANG/DIG
106
I/O
O
Tuner data output to the FM/AM tuner unit (TM301)
O
Tuner clock signal output to the FM/AM tuner unit (TM301)
I
PLL data input from the FM/AM tuner unit (TM301)
I
Tuned display detection signal input from the FM/AM tuner unit (TM301)
I
Stereo detection signal input from the FM/AM tuner unit (TM301)
I Not used (fixed at "L")
—
Ground terminal
I
Not used (fixed at "L")
I
Protect signal input terminal (fixed at "L" in this set)
I Over load detect signal input from the protect circuit "L": protect detect
I
AC power check signal input from the power control (IC1206)
I
Not used (fixed at "L")
O
Video select (SW4) signal output to the video select switch (IC251, 252)
—
Not used (open)
—
Not used (open)
O
Video select (SW3) signal output to the video select switch (IC251, 252)
O Video select (SW2) signal output to the video select switch (IC251, 252)
O
Video select (SW1) signal output to the video select switch (IC251, 252)
I
Model check detection input terminal
I
Tape no/yes signal detection input terminal
I VIDEO 3 no/yes signal detection input terminal
I
DTS no/yes signal detection input terminal
O
Muting control signal output to the power amp (IC501, 601, 701)
I
96K no/yes signal detection input terminal Not used
O
Tuner muting control signal output to the FM/AM tuner unit (TM301) "H": muting
O
Surround muting control signal output to the AF amp (IC1508, 1509, 1510)
—
Hardware standby terminal (fixed at "H" in this set)
O MD2 signal output to the display controller (IC102)
O
MD1 signal output terminal (fixed at "H" in this set)
O
MD0 signal output to the display controller (IC102)
I
Reset signal input from the display controller (IC102)
— Ground terminal
O
Main system clock output terminal (16MHz)
I
Main system clock input terminal (16MHz)
—
Power supply terminal (+5V)
I
Rewrite terminal for the flash memory Not used (fixed at "L")
O
4/8 relay drive signal out put terminal
O
Pre amp relay drive signal output terminal "H": relay on
O Front speaker A relay drive signal output terminal "H": relay on
O
Front speaker B relay drive signal output terminal "H": relay on
O
Center speaker relay drive signal output terminal "H": relay on
O
Rear speaker relay drive signal output terminal "H": relay on
O Rear woofer relay drive signal output terminal "H": relay on
O
Headphone relay drive signal output terminal "H": relay on
O
Power relay drive signal output terminal "H": relay on
O
Analog/digital select signal output terminal
Description
"L": HI-FI "H": QS
"L": tape yes "H": tape no
"L": VIDEO 3 yes "H": VIDEO 3 no
"L": DTS yes "H": DTS no
Not used (open)
"L": analog "H": digital
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