Read Sony STR-K675P Service Manual online
31
STR-K675P
• IC Pin Function Description
DIGITAL BOARD IC1101 MB90488BPF-G-137E1 (SYSTEM CONTROL)
DIGITAL BOARD IC1101 MB90488BPF-G-137E1 (SYSTEM CONTROL)
Pin No.
Pin Name
I/O
Description
1
DATAO
I
Audio data signal input from DIR
2
GP9
I
GP9 signal input from DSP
3
BST
O
BST signal output to DSP
4
HCS
O
HCS signal output to DSP
5
HACN
I
HACN signal input from DSP
6
XRST
O
Reset signal output to DSP
7
PM
O
PM signal output to DSP
8
GP12
O
GP12 signal output to DSP
9
PCM1800RST
O
IC reset signal output to ADC
10
PCM1608RST
O
IC reset signal output to DAC
11
VSS
—
Ground terminal
12
PCM1608ML
O
Latch signal output to DAC
13
PCM1608MC
O
Clock signal output to DAC
14
PCM1608MDI
O
IC data output to DAC
15
PCM1608MDO
I
IC data input to DAC
16
T_CLK
O
Tuner clock signal output terminal
17
T_DI
O
Tuner data signal output terminal
18
HDOUT
I
HDOUT signal input from DSP
19
HDIN
O
HDIN signal output to DSP
20
HCLK
O
Clock signal output to DSP
21
DLY_B PASS
—
Connected to ground terminal
22
DIR/AD
—
Connected to ground terminal
23
VCC5
—
Power supply
24
SYS_MUTE
O
Muting and error signal output
25
ANA/DIG
O
Analog signal or digital signal output terminal
26
UPCON_RST
—
Not used
27
FLASH2/VOL_CL
O
Volume IC clock signal output terminal
28
FLASH1/VOL_DA
O
Volume IC data and latch signal output terminal
29
SDA
I
EEPROM data signal input terminal
30
SCL
O
EEPROM clock signal output terminal
31
ENC_A
—
Short to ground terminal
32
ENC_B
—
Short to ground terminal
33
UPCON
—
Not used
34
UPCON_CLK
—
Not used
35
AVCC
—
Analog power supply
36
AVRH
I
Analog reference voltage input
37
AVSS
—
Analog ground terminal
38
A/D0
I
Function key push signal input
39
A/D1
I
Function key push signal input
40
A/D2
I
Function key push signal input
41
VERSION
I
Version setting input terminal (DESTINATION)
42
VSS
—
Ground terminal
43
RDS SIG
I
RDS signal detect input
44
MODEL
I
Version setting input (MODEL)
45
VOL ENCODER (A)
I
Volume signal input from rotary encoder
46
VOL ENCODER (B)
I
Volume signal input from rotary encoder
47
BLUE LED
—
Not used
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