Sony CDX-M60UI Service Manual page 29

• IC Pin Function Description
MAIN BOARD (3/3) IC501 MB90F883AHPF-GE1 (SYSTEM CONTROL)
Pin No. Pin Name
1 CYRIL_SEL
2 B-OUT_SEL
3 COL_SW
4 ILLUMI_SEL
5 DOOR_SW
6 DOOR_IND
7 NOSE_SW
8 to 10 NCO
11 RE_IN0
12 RE_IN1
13 X_OUT
14 X_IN
15 VCC
16 VSS
17 C
18 UNISI
19 UNISO
20 UNISCK
21 NCO
22 I2C_SIO
23 I2C_SCK
24 NCO
25 ACC_IN
26 TEL_ATT
27 ATT
28 BUS_ON
29 SYS_RST
30 CD_ON
31 CDM_ON
32 AVCC
33 AVRH
34 RC_IN1
35 AVSS
36 NCO
37 VSM
38 SA_IN
39 KEY_IN1
40 KEY_IN0
41 RC_IN0
42, 43 NCO
44 VSS
45 KEY_ACK0
46 KEY_ACK1
47 NCO
48 LCD_CE
49 LCD_SO
50 LCD_SCK
51 MOD2
52 MOD1
53 MOD0
54 RESET
55 AREA_SEL2
56 AREA_SEL1
57 AREA_SEL0
I/O
I Cyril select signal input (L: No cyril select)
I Black out setting signal input (L: No black out)
I Key illumination initial color setting signal input (H: Blue)
I Key illumination voltage setting signal input (L: 9 V)
I Front panel open detect signal input
O Door indicator control signal output
I Front panel detach detect signal input
O Not used. (Open)
I Rotary encoder signal input 0
I Rotary encoder signal input 1
O Low speed operation clock signal output (32.768 kHz)
I Low speed operation clock signal input (32.768 kHz)
– Power supply pin (+3.3 V)
– Ground
– Regulator reference capacitor connecting pin
I SONY-BUS data input
O SONY-BUS data output
O SONY-BUS clock signal output
O Not used. (Open)
I/O I2C serial data input/output
O I2C serial clock signal output
O Not used. (Open)
I Accessory power supply detect signal input
I Telephone attenuator detect signal input
O Audio mute control signal output
O BUS ON signal output
O System reset signal output
I CD mechanism servo power supply control request signal input
I CD mechanism deck power supply control request signal input
– A/D converter power supply pin (+3.3 V)
– A/D converter external reference power supply pin (+3.3 V)
I Rotary commander shift key signal input 1
– Ground for A/D converter
O Not used. (Open)
I S meter voltage detect signal input
I Spectrum analyzer DC input
I Key signal input 1
I Key signal input 0
I Rotary commander shift key signal input 0
O Not used. (Open)
– Ground
I Key acknowledge detect signal input (Rotary commander)
I Key acknowledge detect signal input (Front panel)
O Not used. (Open)
O LCD driver chip enable signal output
O LCD driver serial data output
O LCD driver serial clock signal output
I Micon operation mode setting signal input (active: L)
I Micon operation mode setting signal input
I Micon operation mode setting signal input (active: H)
I Reset signal input
I Destination setting pin 2 (L: CDX-M60UI/MR60UI, H: CDX-M60UI)
I Destination setting pin 1 (Fixed at L)
I Destination setting pin 0 (L: CDX-M60UI, H: CDX-MR60UI)
CDX-M60UI/MR60UI
Description
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