Sony CDX-A360 Service Manual page 32

CDX-A360
• IC501 MB90487APF-G-199E1 (SYSTEM CONTROL) (MAIN BOARD (3/3))
Pin No. Pin Name
1 AREASEL2
2 AREASEL1
3 AREASEL0
4 COL_SW
5 BEEP
6 CYRIL_SEL
7 NOSE_SW
8 DIAG
9 VOL_ATT
10 NCO
11 VSS
12 TUATT
13 NSMASK
14 ILLUMI_SEL1
15 ILLUMI_SEL2
16 to 22 NCO
23 VCC5
24 EEP_SIO
25 EEP_CKO
26 AMPSTB
27 LCD_CE
28 LCD_SO
29 LCD_CKO
30 RDS_ON
31 RE_IN0
32 RE_IN1
33 I2C_CKO
34 I2C_SIO
35 DAVDD
36 AVRH
37 DAVSS
38 QUALITY
39 VSM
40 KEY IN1
41 KEY IN0
42 VSS
43 RC_IN0
44 to 48 NCO
49 MD0
50 MD1
51 MD2
52 KEYACK
53 TU_ATTIN
54 BUIN
55 NCO
56 DAVN
57 NCO
58 UNISI
59 UNISO
32
I/O
I Destination setting pin
I Destination setting pin
I Destination setting pin
I Illumination color select signal input
O Beep signal output
I Cyril select signal input
I Front panel open/close detect signal input
I Power AMP status signal input
O Electronic volume attenuate control signal output
O Not used. (Open)
— Ground
O Tuner mute control signal output
O Noise mask signal output
I Illumination voltage setting signal input 1
I Illumination voltage setting signal input 2
O Not used. (Open)
— Power supply (+3.3 V)
I/O EEPROM bus serial data input/output
O EEPROM bus serial clock output
O Power AMP standby signal output
O LCD driver chip enable signal output
O LCD driver serial data signal output
O LCD driver serial clock signal output
O RDS ON signal output
I Rotary encoder signal input 0
I Rotary encoder signal input 1
O I2C bus serial clock signal output
I/O I2C bus serial data signal input/output
— A/D converter power supply (+3.3 V)
— A/D converter external reference power supply (+3.3 V)
— Ground
I Noise detect signal input
I S-meter voltage detect signal input
I Key signal input 1
I Key signal input 0
— Ground
I Rotary commander key signal input
O Not used. (open)
I Operation mode setting pin (Pull up)
I Operation mode setting pin (Pull up)
I Operation mode setting pin (Pull down)
I Key acknowledgment detect signal input
I Tuner mute zero cross detect signal input
I Back-up power supply detect signal input
O Not used. (Open)
I RDS data block synchronized detect signal input
O Not used. (Open)
I S-Bus data signal input
O S-Bus data signal output
Pin Description