Sony CDX-GT315C, Руководство по обслуживанию

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CDX-GT315C
• IC PIN DESCRIPTION
IC501 MB90F045PF-G-9043-SPE1 (SYSTEM CONTROL) (MAIN BOARD (3/3))
Pin No. Pin Name I/O Pin Description
1 AREASEL0 I Destination setting pin 0
2 AREASEL1 I Destination setting pin 1
3 AREASEL2 I Destination setting pin 2
4 B-OUT SEL I Black-out with/without discrimination signal input “H”: Black-out
5 BEEP O Beep signal output
6 NCO O Not used. (Open)
7 DIAG I Status signal input from power amplifier
8 AMPSTB O Standby signal output to power amplifier
9 VOLATT O Electronic volume attenuate control signal output
10 NCO O Not used. (Open)
11 VSS — Ground pin
12 TUATT O Tuner mute control signal output
13 NSMASK O AEP, UK model: Noise mask signal output US, Canadian, E model: Not used.
14 ILLUMI SEL I Illumination voltage setting signal input
15 COL SEL I Two colors change setting signal input
16 to 22 NCO O Not used. (Open)
23 VCC5 — Power supply pin (+3.3 V)
24 EEP SIO I/O EEPROM bus serial data signal input/output
25 EEP CKO O EEPROM bus serial clock signal output
26 RDS ON O
AEP, UK model: RDS (Radio Data System) on signal output Tuner on: “L”
US, Canadian, E model: Not used.
27 FL CS O Fluorescent indicator tube chip select signal output
28 FL SO O Fluorescent indicator tube serial data signal output
29 FL SCK O Fluorescent indicator tube serial clock signal output
30 NCO O Not used. (Open)
31 RE IN0 I Rotary encoder signal input 0
32 RE IN1 I Rotary encoder signal input 1
33 I2C SCK 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 (+3.3 V)
36 AVRH — A/D converter external reference power supply pin (+3.3 V)
37 DAVSS — Ground pin
38 QUALITY I AEP, UK model: Noise detect signal input US, Canadian, E model: Not used.
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 pin
43 RCIN0 I Rotary commander key signal input
44 to 47 NCO O Not used. (open)
48 AD ON O A/D converter power supply control signal output
49 MD0 I Operation mode setting pin (Connect to VDD.)
50 MD1 I Operation mode setting pin (Connect to VDD.)
51 MD2 I Operation mode setting pin (Connect to VSS.)
52 KEYACK I Key acknowledgment detect signal input
53 TUATTIN I
AEP, UK model: Tuner mute zero cross detect signal input
US, Canadian, E model: Not used.
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