Sony CDX-R5715X - Page 44

44
CDX-R5715X/R5810/R6750
• IC501 MB90488BPF-G-147-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 NCO O Not used
5 BEEP O Beep signal output
6 NCO O Not used
7 NOSE SW I Front panel open/close detect signal input
8DIAG I Power AMP status signal input
9VOL ATT O Electronic volume attenuate control signal output
10 NCO I Not used
11 VSS — Ground
12 TU ATT O Tuner mute control signal output
13 NS MASK O Noise mask signal output
14 ILLUMI SEL1 I Illumination voltage setting pin
15 ILLUMI SEL2 I Illumination voltage setting pin
16 NCO O Not used
17 AUX IN O AUX/Light select signal output
18 FSW OUT O DC/DC converter OSC frequency control signal output
19 FL ON O FL power ON/OFF control signal output
20 NCO O Not used
21 DIM SEL1 I FL tube dimmer setting pin
22 DIM SEL2 I FL tube dimmer setting pin
23 VCC5 — Power supply pin (+3.3V)
24 EEP SIO I/O EEPROM bus serial data input/output
25 EEP CKO O EEPROM bus serial clock output
26 AMP STB O Power AMP standby signal output
27 FLS CS O FL driver chip enable output
28 FLS SO O FL driver serial data output
29 FL SCK O FL driver serial clock output
30 RDS ON O RDS ON signal output
31 NCO O Not used
32 NCO O Not used
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 pin (+3.3V)
36 AVRH — A/D converter reference power supply pin (+3.3V)
37 DAVSS — Ground
38 QUALITY I Noise detect signal input
39 VSM I S-meter voltage detect signal input
40 KEY IN1 I Key signal input
41 KEY IN0 I Key signal input
42 VSS — Ground
43 RC IN0 I Rotary commander key signal input
44 SA_IN I Spectrum analyzer data signal input
45 SA_CKO O Spectrum analyzer clock signal output
46 FSW IN I DC/DC converter OSC frequency signal input
47 NCO O Not used
48 NCO O Not used
49 MD0 I Operation mode setting pin
50 MD1 I Operation mode setting pin
51 MD2 I Operation mode setting pin
52 KEY ACK I Key acknowledgment detect signal input