Read Sony CDX-GT690UI / CDX-GT696UI Service Manual online
CDX-GT690UI/GT696UI
27
• IC Pin Function Description
MAIN BOARD (3/3) IC501 MB90F058PF-G-110-JNE1 (SYSTEM CONTROL)
MAIN BOARD (3/3) IC501 MB90F058PF-G-110-JNE1 (SYSTEM CONTROL)
Pin No.
Pin Name
I/O
Description
1
CYRIL_SEL
I
Cyril select signal input (L: No cyril select)
2
B-OUT_SEL
I
Black out setting signal input (H: Black out)
3
COL_SW
I
Key illumination initial color setting signal input (H: Blue)
4
ILLUMI_SEL
I
Key illumination voltage setting signal input (L: 9 V)
5
DOOR_SW
I
Front panel open detect signal input
6
DOOR_IND
O
Door indicator control signal output
7
NOSE_SW
I
Front panel detach detect signal input
8 to 10
NCO
O
Not used. (Open)
11
RE_IN0
I
Rotary encoder signal input 0
12
RE_IN1
I
Rotary encoder signal input 1
13
X_OUT
O
Low speed operation clock signal output (32.768 kHz)
14
X_IN
I
Low speed operation clock signal input (32.768 kHz)
15
VCC
―
Power supply pin (+3.3 V)
16
VSS
―
Ground
17
C
―
Regulator reference capacitor connecting pin
18
UNISI
I
SONY-BUS data input
19
UNISO
O
SONY-BUS data output
20
UNISCK
O
SONY-BUS clock signal output
21
NCO
O
Not used. (Open)
22
I2C_SIO
I/O
IIC serial data input/output
23
I2C_SCK
O
IIC serial clock signal output
24
NCO
O
Not used. (Open)
25
ACC_IN
I
Accessory power supply detect signal input
26
TEL_ATT
I
Telephone attenuator detect signal input
27
ATT
O
Audio mute control signal output
28
BUS_ON
O
BUS ON signal output
29
SYS_RST
O
System reset signal output
30
CD_ON
I
CD mechanism servo power supply control request signal input
31
CDM_ON
I
CD mechanism deck power supply control request signal input
32
AVCC
―
A/D converter power supply pin (+3.3 V)
33
AVRH
―
A/D converter external reference power supply pin (+3.3 V)
34
RC_IN1
I
Rotary commander shift key signal input 1
35
AVSS
―
Ground for A/D converter
36
NCO
O
Not used. (Open)
37
VSM
I
S meter voltage detect signal input
38
SA_IN
I
Spectrum analyzer DC input
39
KEY_IN1
I
Key signal input 1
40
KEY_IN0
I
Key signal input 0
41
RC_IN0
I
Rotary commander shift key signal input 0
42, 43
NCO
O
Not used. (Open)
44
VSS
―
Ground
45
KEY_ACK0
I
Key acknowledge detect signal input (Rotary commander)
46
KEY_ACK1
I
Key acknowledge detect signal input (Front panel)
47
NCO
O
Not used. (Open)
48
LCD_CE
O
LCD driver chip enable signal output
49
LCD_SO
O
LCD driver serial data output
50
LCD_SCK
O
LCD driver serial clock signal output
51
MOD2
I
Micon operation mode setting signal input (active: L)
52
MOD1
I
Micon operation mode setting signal input
53
MOD0
I
Micon operation mode setting signal input (active: H)
54
RESET
I
Reset signal input
55
AREA_SEL2
I
Destination setting pin 2
56
AREA_SEL1
I
Destination setting pin 1 (Fixed at L in this set)
57
AREA_SEL0
I
Destination setting pin 0 (Fixed at L in this set)
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