33
CDX-R30M/R3310/R3410/R3410S
• IC501 MB90488BPF-G-122-BNDE1 (SYSTEM CONTROL) (MAIN BOARD (3/3))
Pin No. Pin Name I/O Pin Description
1 AREASEL2 I Destination function setting signal input 2
2 AREASEL1 I Destination function setting signal input 1
3 AREASEL0 I Destination function setting signal input 0
4 COL SW I LED color switch signal input
5 BEEP O Beep signal output
6 LIST SEL I List select signal input
7 NOSE SW I Front panel attachment detection signal input “L”: with panel
8 DIAG I Condition signal input from power amplifier
9VOLATT O Electronic volume attenation control signal output
10 NCO O Not used. (Open)
11 VSS — Ground pin
12 TUATT O Tuner mute control signal output
13 NSMASK O Noise mask signal output
14 ILLUMI SEL1 I Illumination voltage setting signal input 1
15 ILLUMI SEL2 I Illumination voltage setting signal input 2
16 NCO O Not used. (Open)
17 AUXIN O AUX light change signal output “L”: AUX, “H”: BUS IN
18 CD SI O Not used in this set. (Open)
19 CD SO O Not used in this set. (Open)
20 CD SCK O Not used in this set. (Open)
21, 22 NCO O Not used. (Open)
23 VCC5 — Power supply pin
24 EEP SIO I/O Serial data input/output for EEPROM communication
25 EEP CKO O Serial clock output for EEPROM communication
26 AMPSTB O Standby signal output to power amplifier
27 LCD CE O Chip enable signal output to LCD driver
28 LCD SO O Serial data signal output to LCD driver
29 LCD CKO O Serial clock signal output to LCD driver
30 RDS ON O RDS on signal output Tuner on: “L”
31, 32 NCO O Not used. (Open)
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 pin
36 AVRH — A/D converter reference power supply pin
37 DAVSS — A/D converter ground pin
38 QUALITY I Noise detection signal input
39 VSM I S-meter voltage detection signal input
40 KEYIN1 I Key signal input 1
41 KEYIN0 I Key signal input 0
42 VSS — Ground pin
43 RC IN0 I Rotary commander key signal input 0
44 to 48 NCO O Not used. (Open)
49, 50 MD0, MD1 I Operation mode designation signal input Fixed at “H” in this set.
51 MD2 I Operation mode designation signal input Fixed at “L” in this set.
52 KEYACK I Key acknowledge detection signal input
53 TU ATTIN I Tuner mute zero cross detection signal input
54 BUIN I Backup power supply detection signal input
55 CD INTQ O Not used in this set. (Open)
56 DAVN I RDS data block synchronization detection signal input
57 NCO O Not used. (Open)
58 UNISI I SONY BUS data signal input
59 UNISO O SONY BUS data signal output
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