Read Sony STR-DE497 Service Manual online
14
STR-DE497
• IC1601 MB90478PF-G-170-BND (SYSTEM CONTROL) (DIGITAL Board (2/2))
Pin No.
Pin Name
I/O
Pin Description
1
DATAO
I
Serial data line signal input from DIR IC
2
GP9
I
GP9 signal input from DSP IC
3
BST
O
Boot stop control signal output for DSP IC
4
HCS
O
Chip select signal output for DSP IC
5
HACN
I
Acknowledge signal input from DSP IC
6
XRST
O
Reset signal output for DSP IC
7
PM
O
PLL control signal output for DSP IC
8
PD
O
Power down signal output for CODEC IC
9
SMUTE
O
Soft mute signal output for CODEC IC
10
CDT1
O
Control data output for CODEC IC
11
VSS
—
Ground
12
SCL
O
Serial data clock signal output for CODEC IC
13
CS
O
Latch signal output for CODEC IC
14
DATA
O
Serial data output for VOL/TUNER IC
15
CLK
O
Clock signal output for VOL/TUNER IC
16
LATCH– VOL IC
O
Latch signal output for VOL/TUNER IC
17
SPK B RELAY
O
Speaker B relay driver control signal output
18
HDOUT
I
Serial data input from DSP IC
19
HDIN
O
Serial data output for DSP IC
20
HCLK
O
Serial data clock signal output for DSP IC
21
F.MUTE
O
Function mute control signal output
22
NC
O
Not used (Fixed at L)
23
VCC5
—
Power supply pin (+3.3 V)
24
ANA/DIG
O
Muting and error port signal output
25
HP DETECT
I
Headphone detection signal input
26
NC
—
Not used (Fixed at L)
27
FLASH2
—
Flash programming signal output 2
28
FLASH1
—
Flash programming signal output 1
29 to 32
NC
—
Not used (Fixed at L)
33
SCL
O
Clock signal output for EEPROM IC
34
SDA
I/O
Serial data input/output for EEPROM IC
35
AVCC
—
Power supply pin (+3.3 V)
36
AVRH
—
Power supply pin (+3.3 V)
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 level input (AEP, UK model only)
44
MODEL
I
Model detection signal input
45
VERSION
I
Destination detection signal input
46
BLUE LED
I
LED (MULTI CHANNEL DECODING) driver signal input
47
NC
—
Not used (Fixed at L)
48
STOP
I
AC off detection signal input
49
MOD0
—
Selection of micon operation mode
50
MOD1
—
Not used (Connect to AVCC)
51
MOD2
—
Selection of micon operation mode
52
RDS CLOCK
I
RDS data clock signal input (AEP, UK model only)
53
RDS DATA
I
RDS data input (AEP, UK model only)
54
SIRCS
I
SIRCS signal input
55
FUSE DETECT
I
Fuse open detection signal input
56
POWER KEY
I
Power key detection signal input
57, 58
NC
I
Not used (Fixed at L)
59
VOL (B)
I
Volume encoder signal input
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