31
CDX-S2270EE
• IC501 MB90487APF-G-118-BNDE1 (SYSTEM CONTROL) (MAIN BOARD (3/4))
Pin No.
Pin Name
I/O
Pin Description
1
AREA SEL2
I
Destination setting pin
2
AREA SEL1
I
Destination setting pin
3
AREA SEL0
I
Destination setting pin
4
COL_SW
I
Illumination color select signal input
5
BEEP
O
Beep signal output
6
NCO
O
Not used (Open)
7
NOSE_SW
I
Front panel open/close detect signal input
8
DIAG
I
Power AMP status signal input
9
VOLATT
O
Electronic volume attenuate control signal output
10
NCO
O
Not used (Open)
11
VSS
—
Ground
12
TUATT
O
Tuner mute control signal output
13
NSMASK
O
Noise mask signal output
14
ILLUMISEL1-SEL1
I
Illumination voltage setting pin
15
ILLUMISEL2-SEL2
I
Illumination voltage setting pin
16
NCO
O
Not used (Open)
17
AUXIN
O
Not used (Open)
18
CD_SI
O
Not used (Open)
19
CD_SO
O
Not used (Open)
20
CD_SCK
O
Not used (Open)
21
NCO
O
Not used (Open)
22
NCO
O
Not used (Open)
23
VCC5
—
Power supply (+3.3V)
24
EEP_SIO
I/O
EEPROM bus serial data input/output
25
EEP_CKO
O
EEPROM bus serial clock output
26
AMPSTB
O
Power AMP satandby signal output
27
LCD_CE
O
LCD driver chip enable output
28
LCD_SO
O
LCD driver serial data output
29
LCD_SCK
O
LCD driver serial clock output
30
RDS_ON
O
RDS ON signal output (Not used in this set.)
31
NCO
O
Not used (Open)
32
NCO
O
Not used (Open)
33
I2C_SCK
O
I2C bus serial clock output
34
I2C_SIO
I/O
I2C bus serial data input/output
35
DAVDD
—
A/D converter power supply (+3.3V)
36
AVRH
—
A/D converter reference power supply (+3.3V)
37
DAVSS
—
Ground
38
QUALITY
I
Noise detect signal input (Not used in this set.)
39
VSM
I
S-meter voltage detect signal input
40
KEYIN1
I
Key signal input
41
KEYIN0
I
Key signal input
42
VSS
—
Ground
43
RC_IN0
I
Rotary commander key signal input (Not used in this set.)
44
NCO
O
Not used (Open)
45
NCO
O
Not used (Open)
46
NCO
O
Not used (Open)
47
NCO
O
Not used (Open)
48
NCO
O
Not used (Open)
49
MD0
I
Operation mode setting pin
Содержание CDX-S2270EE
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