Read Sony CDX-GT510 / CDX-GT51W / CDX-GT560 / CDX-GT560S Service Manual online
31
CDX-GT51W/GT510/GT560/GT560S
• IC PIN DESCRIPTIONS
• IC501 MB90F045PF-G-9016-SPE1 (SYSTEM CONTROL) (MAIN BOARD (3/3))
Pin No.
Pin Name
I/O
Pin Description
1
AREASEL0
I
Destination setting pin
2
AREASEL1
I
Destination setting pin
3
AREASEL2
I
Frequency select signal input
4
B-OUTSEL
I
Blackout existence distinction signal input (L: blackout none, H: blackout)
5
NOSE_SW
I
Front panel detaching detection signal input (L: Panel on, H: Panel off)
6
ACC_SEL
I
ACC distinction signal input (Pull up)
7
BEEP
O
BEEP signal output
8
DIAG
I
Status signal input from power amplifier.
9
VOLATT
O
Electronic volume attenuate control signal output.
10
FSW_IN
O
DC/DC converter frequency signal input
11
VSS
—
Ground
12
TUATT
O
Tuner mute control signal output
13
NSMASK
O
Noise mask signal output Not used in this set. (Open)
14
NCO
I
Not used. (Open)
15
ILLUMI_SEL
I
Illumination voltage setting pin (L: 9V, H: 10.4V)
16
NCO
O
Not used. (Open)
17
AUX_SW
O
Not used. (Open)
18
FL_CS
O
FL driver chip select signal output
19
FL_SO
O
FL driver serial data signal output
20
FL_SCK
O
FL driver serial clock signal output
21
USB_OVL
O
Not used. (Open)
22
USB_ON
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 standby signal output
27
MC-RX
O
Not used. (Open)
28
MC-TX
O
Not used. (Open)
29
NCO
O
Not used. (Open)
30
RDS ON
O
RDS ON signal output Not used in this set. (Open)
31
NCO
O
Not used. (Open)
32
SA_DATA
O
Spectrum analyzer data signal output
33
I2C_CKO
O
I2C bus serial clock signal output
34
I2C_SIO
I/O
I2C bus serial data signal input/output
35
DAVDD
—
A/D converter power supply (+3.3V)
36
AVRH
—
A/D converter external reference power supply (+3.3V)
37
DAVSS
—
A/D converter Ground
38
QUALITY
I
Noise detect signal input
39
VSM
I
S-meter voltage detect signal input
40
KEYIN1
I
Key signal input 1
41
KEYIN0
I
Key signal input 0
42
VSS
—
Ground
43
RC_IN0
I
Rotary commander key signal input
44
SA_IN
I
Spectrum analyzer signal input
45
SA_CKO
O
Spectrum analyzer clock signal output
46
DOOR_IND
O
DISC IN/EJECT indicator LED control signal output
47
RE-IN0
I
Rotary encoder signal input 0
48
RE-IN1
I
Rotary encoder signal input 1
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