Sony STR-DB1070 Service Manual - Page 51

Sony STR-DB1070 - Fm Stereo/fm-am Receiver Manual

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Page 51 highlights

STR-DB870/DB1070 Pin No. Pin Name I/O Description 41 M STATUS O STATUS (M BUS) control signal output to the select switch (IC751) 42 D.POWER O Power ON/OFF control signal output terminal (digital section power) 43 V.POWER O Power ON/OFF control signal output terminal (video section power) 44 VSS - Ground terminal 45, 46 NC I Not used (fixed at "L" ) 47 ERROR I Error signal input from the audio DSP (IC1601) 48 NC I Not used (fixed at "L" ) 49 SUB.T.PORT O Sub power transformer (T2) on/off signal output terminal 50 AUDIO SPLIT LED O LED drive signal output of AUDIO SPLIT indicator (D1801) 51 GND - Not used (fixed at "L" ) 52 MD2 O MD2 signal output terminal (fixed at "L" ) 53 MD1 O MD1 signal output terminal (fixed at "H" ) 54 MD0 O MD0 signal output terminal (fixed at "H" ) 55 RSTX I System reset signal input from the reset signal generator (IC1702) 56 VCC - Power supply terminal (+3.3V) 57 X1 O Main system clock output terminal (16.5MHz) 58 X0 I Main system clock output terminal (16.5MHz) 59 VSS - Ground terminal 60 STOP I AC power check signal input terminal 61 RDS CLK I RDS serial data transfer clock signal input from the RDS decoder (IC1303) 62 POWER I Key input terminal I/1 key (S1704) input 63 MBUS TV I TV (M BUS) signal input from the TV jack (J755) (US, Canadian models only) 64 MBUS DVD I DVD (M BUS) signal input terminal (US, Canadian models only) 65 MBUS VIDEO I VIDEO (M BUS) input terminal (US, Canadian models only) 66 SIRCS I Sircs signal input from the remote control receiver (IC1701) and select switch (IC751) 67 DIR ERROR I Error signal input from the digital audio interface receiver (IC1408) 68 VCC - Power supply terminal (+3.3V) 69 XSTATE I Clock status flag signal input from the digital audio interface receiver (IC1408) 70 DATA0 I Audio data input from the digital audio interface receiver (IC1408) 71 XMODE O Reset signal output to the digital audio interface receiver (IC1408) "L": active 72 CKSEL1 O System clock select 1 output to the digital audio interface receiver (IC1408) 73 CLK O Clock signal output to the digital audio interface receiver (IC1408) 74 CE O Chip enable signal output to the digital audio interface receiver (IC1408) 75 DI O Data output to the digital audio interface receiver (IC1408) 76 DO I Data input from the digital audio interface receiver (IC1408) 77 VCC - Power supply terminal (+3.3V) 78 BST O Booster control signal output to the audio DSP2 (IC1601) 79 PM2 O PLL initialize signal output to the audio DSP2 (IC1601) 80 XRST2 O Reset signal output to the audio DSP2 (IC1601) 81 HACN2 I Host acknowledge signal input from the audio DSP2(IC1601) 82 HCS2 O Host chip select signal output to the audio DSP2 (IC1601) 83 GB9 I Signal input from the audio DSP1 (IC1501) 84 BST1 O Boot strap signal output to the audio DSP1 (IC1501) 85 HCS1 O Host chip select signal output to the audio DSP1 (IC1501) 86 A1 IN I Audio bus input terminal (control A1) 87 A1 OUT O Audio bus output terminal (control A1) 51

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51
STR-DB870/DB1070
Pin No.
Pin Name
I/O
Description
41
M STATUS
O
STATUS (M BUS) control signal output to the select switch (IC751)
42
D.POWER
O
Power ON/OFF control signal output terminal (digital section power)
43
V.POWER
O
Power ON/OFF control signal output terminal (video section power)
44
VSS
—
Ground terminal
45, 46
NC
I
Not used (fixed at “L” )
47
ERROR
I
Error signal input from the audio DSP (IC1601)
48
NC
I
Not used (fixed at “L” )
49
SUB.T.PORT
O
Sub power transformer (T2) on/off signal output terminal
50
AUDIO SPLIT LED
O
LED drive signal output of AUDIO SPLIT indicator (D1801)
51
GND
—
Not used (fixed at “L” )
52
MD2
O
MD2 signal output terminal (fixed at “L” )
53
MD1
O
MD1 signal output terminal (fixed at “H” )
54
MD0
O
MD0 signal output terminal (fixed at “H” )
55
RSTX
I
System reset signal input from the reset signal generator (IC1702)
56
VCC
—
Power supply terminal (+3.3V)
57
X1
O
Main system clock output terminal (16.5MHz)
58
X0
I
Main system clock output terminal (16.5MHz)
59
VSS
—
Ground terminal
60
STOP
I
AC power check signal input terminal
61
RDS CLK
I
RDS serial data transfer clock signal input from the RDS decoder (IC1303)
62
POWER
I
Key input terminal
I/
1
key (S1704) input
63
MBUS TV
I
TV (M BUS) signal input from the TV jack (J755) (US, Canadian models only)
64
MBUS DVD
I
DVD (M BUS) signal input terminal (US, Canadian models only)
65
MBUS VIDEO
I
VIDEO (M BUS) input terminal (US, Canadian models only)
66
SIRCS
I
Sircs signal input from the remote control receiver (IC1701) and select switch (IC751)
67
DIR ERROR
I
Error signal input from the digital audio interface receiver (IC1408)
68
VCC
—
Power supply terminal (+3.3V)
69
XSTATE
I
Clock status flag signal input from the digital audio interface receiver (IC1408)
70
DATA0
I
Audio data input from the digital
audio interface receiver (IC1408)
71
XMODE
O
Reset signal output to the digital audio interface receiver (IC1408)
“L”: active
72
CKSEL1
O
System clock select 1 output to the digital audio interface receiver (IC1408)
73
CLK
O
Clock signal output to the digital audio interface receiver (IC1408)
74
CE
O
Chip enable signal output to the digital audio interface receiver (IC1408)
75
DI
O
Data output to the digital audio interface receiver (IC1408)
76
DO
I
Data input from the digital audio interface receiver (IC1408)
77
VCC
—
Power supply terminal (+3.3V)
78
BST
O
Booster control signal output to the audio DSP2 (IC1601)
79
PM2
O
PLL initialize signal output to the audio DSP2 (IC1601)
80
XRST2
O
Reset signal output to the audio DSP2 (IC1601)
81
HACN2
I
Host acknowledge signal input from the audio DSP2(IC1601)
82
HCS2
O
Host chip select signal output to the audio DSP2 (IC1601)
83
GB9
I
Signal input from the audio DSP1 (IC1501)
84
BST1
O
Boot strap signal output to the audio DSP1 (IC1501)
85
HCS1
O
Host chip select signal output to the audio DSP1 (IC1501)
86
A1 IN
I
Audio bus input terminal (control A1)
87
A1 OUT
O
Audio bus output terminal (control A1)