Read Sony STR-DE685 Service Manual online
15
STR-DE685
1
DATAO
I
Serial data input for DIR
2
GP9
I
Decode signal input
3
BST
O
Boot stop signal output to DSP
4
HCS
O
Chip select signal output to DSP
5
HACN
I
Acknowledge signal input for DSP
6
XRST
O
Reset signal output to DSP
7
PM
O
PLL initialization output to DSP
8
PD
O
Power down signal output to CODEC
9
SMUTE
O
Soft mute signal output to CODEC
10
CDT1
O
Control data output to CODEC
11
VSS
—
Ground
12
SCL
O
Serial data clock to CODEC
13
CS
O
Chip select signal output to CODEC
14
DATA
O
Serial data output to VOL/TUNER
15
CLK
O
Clock signal output to VOL/TUNER
16
LATCH
O
Latch signal output to VOL/TUNER
17
SPKB
O
Speaker B out control signal output
18
HDOUT
I
Serial data for DSP
19
HDIN
O
Serial data to DSP
20
HCLK
O
Clock signal output to DSP
21
F.MUTE
O
Function input mute signal output
22
AC MUTE
O
Power amp mute signal output
23
VCC5
I
Power supply
24
ANA/DIG
I
Muting and error port signal input
25
HP DETECT
I
Headphone detect signal input
26
DCS LED
O
LED (DCS) driver signal output
27
FLASH2
O
Flash programming signal output
28
SP SWITCH/FLASH1
I/O
Speaker ON/OFF signal output
29
MCH LED
O
LED (MULTI CHANNEL DECODING) driver signal output
30
MODE
O
LED (MODE) driver signal output
31
2CH
O
LED (2CH) driver signal output
32
AFD
O
LED (A.F.D.) driver signal output
33
SCL
O
Clock signal output to EEPROM
34
SDA
I/O
Serial data to EEPROM
35
AVCC
I
Power supply
36
AVRH
I
Not used (connected to “H”)
37
AVSS
—
Ground
38 to 41
A/D0 to A/D3
I
Key signal input (A/D port)
42
VSS
—
Ground
43
RDS SIGNAL
I
RDS signal input
44
MODEL
I
Model detection port
45
VERSION
I
Version resistor port
46
NC
O
Not used (connected to ground)
47
NC
O
Not used (connected to ground)
48
STOP
I
Input signal when AC off
49
MD0
—
Selection of micom operation mode
50
MD1
—
Not used (connected to ground)
51
MD2
—
Selection of micom operation mode
52
RDS CLOCK
I
RDS clock signal output (Not used)
53
RDS DATA
I
RDS data output (Not used)
54
SIRCS
I
Input data from remote control receiver
55
FUSE DETECT
I
Power down detect input
• IC1601 MB90478PF-G-120-BND (SYSTEM CONTROL) (DIGITAL Board (2/2))
Pin No.
Pin Name
I/O
Description
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