Sony CDX-GT610U Service Manual page 31

• IC PIN DESCRIPTION
IC501 MB90F046PF-G-102E1 (SYSTEM CONTROL) (CDX-GT610U/GT616U) (MAIN BOARD (3/3))
IC501 MB90F046PF-G-104E1 (SYSTEM CONTROL) (CDX-GT617UE) (MAIN BOARD (3/3))
Pin No. Pin Name
1 AREASEL0
2 AREASEL1
3 AREASEL2
4 B-OUTSEL
5 NOSE SW
6 AAC SEL
7 BEEP
8 DIAG
9 VOLATT
10 FSW IN
11 VSS
12 TUATT
13 NSMASK
14 NCO
15 ILLUMI SEL
16 NCO
17 AUX SW
18 FL CS
19 FL SO
20 FL SCK
21 USB OVR
22 USB ON
23 VCC5
24 EEP SIO
25 EEP CKO
26 AMPSTB
27 MC RX
28 MC TX
29 NCO
30 RDS ON
31 NCO
32 SA DATA
33 I2C SCK
34 I2C SIO
35 DAVDD
36 AVRH
37 DAVSS
38 QUALITY
39 VSM
40 KEYIN1
41 KEYIN0
42 VSS
43 RCIN0
44 SA IN
45 SA CKO
46 DOOR IND
47 RE IN0
48 RE IN1
49 MD0
I/O
I Destination setting pin 0
I Destination setting pin 1
I Destination setting pin 2
I Black-out with/without discrimination signal input
I Front panel attachment detect signal input
I AAC play setting signal input
O Beep signal output to power amplifier
I Status signal input from power amplifier
O Electronic volume attenuate control signal output
I D/D converter oscillator frequency count signal input
— Ground pin
O Tuner mute control signal output
O Noise mask signal output
O Not used. (Open)
I Illumination voltage setting signal input
O Not used. (Open)
O AUX change over signal output
O Fluorescent indicator tube chip select signal output
O Fluorescent indicator tube serial data signal output
O Fluorescent indicator tube serial clock signal output
I Overcurrent detect signal input from USB power supply high side switch
O USB power supply high side switch control signal output
— Power supply pin (+3.3 V)
I/O EEPROM bus serial data signal input/output
O EEPROM bus serial clock signal output
O Standby signal output to power amplifier
I Mechanism microcomputer comunication signal input RX
O Mechanism microcomputer comunication signal output TX
O Not used. (Open)
O RDS (Radio Data System) on signal output
O Not used. (Open)
O Data signal output for electronic volume IC spectrum analyzer
O I2C bus serial clock signal output
I/O I2C bus serial data signal input/output
— A/D converter power supply pin (+3.3 V)
— A/D converter external reference power supply pin (+3.3 V)
— Ground pin
I Noise detect signal input
I S-meter voltage detect signal input
I Key signal input 1
I Key signal input 0
— Ground pin
I Rotary commander key signal input
I Spectrum analyzer data signal input
O Spectrum analyzer clock signal output
O Disc door indicator control signal output
I Rotary encoder signal input 0
I Rotary encoder signal input 1
I Operation mode setting pin (Connect to VDD.)
CDX-GT610U/GT616U/GT617UE
Pin Description
"H": Black-out
"L": with panel
"H": AAC
"L": AUX, "H": BUS IN
Tuner on: "L"
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