Sony CDX-GT210 Service Manual page 27

• IC PIN DESCRIPTIONS
• IC501 MB90F045PF-G-9014-SPE1 (SYSTEM CONTROL) (MAIN BOARD (3/3))
Pin No. Pin Name
1 AREASEL0
2 AREASEL1
3 AREASEL2
4 B-OUT SEL
5 BEEP
6 CYRIL_SEL
7 NOSE_SW
8 DIAG
9 VOLATT
10 NCO
11 VSS
12 TUATT
13 NSMASK
14 ILLUMI_SEL1
15 ILLUMI_SEL2
16, 17 NCO
18 to 20 NCO
21, 22 NCO
23 VCC5
24 EEP_SIO
25 EEP_CKO
26 AMPSTB
27 LCD_CE
28 LCD_SO
29 LCD_SCK
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 KEYIN1
41 KEYIN0
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
I/O
I Destination setting pin
I Destination setting pin
I Frequency select signal input
I Blackout existence distinction signal input (L: blackout none, H: blackout)
O BEEP signal output
I Distinction pin for Cyril word. (L: not for the Kiril word, H: for the Kiril word)
I Front panel detaching detection signal input (L: Panel on, H: Panel off)
I Status signal input from power amplifier.
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 pin
I Illumination voltage setting pin
O Not used. (Open)
O Not used. (Open)
O Not used. (Open)
— Power supply (+3.3V)
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 (+3.3V)
— A/D converter external reference power supply (+3.3V)
— A/D converter 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
CDX-GT210/GT212/GT262/GT262S
Pin Description
Not used in this set. (Pull up)
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