Sony CDX-GT11W Service Manual page 29

• 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-GT11W/GT110/GT160/GT160S
Pin Description
Not used in this set. (Open)
Not used in this set. (Open)
Not used in this set. (Pull up)
Not used in this set. (Pull down)
Not used in this set. (Pull down)
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