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KDC-3031A/3031AY/3031G/3031GY
KDC-309A/309G/F331A/F331G
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3 7 63 1515 0
SWITCH UNIT (X16-2932-7x)
Ref. No.
Application / Function
IC1
VFD DRIVER
IC3
REMOTE SENSOR
Q1
GREEN LED SW
Q2
RED LED SW
Q21
PAN SW5V
MICROCOMPUTER'S TERMINAL DESCRIPTION
SYSTEM µ-COM : IC1 on X34- (ELECTRIC UNIT)
Active
Pin No.
Pin Name
(H/L)
1
DC ERR
2
LINE MUTE
3
ROTARY CW
4
AVSS
TE
L 13942296513
5
TUN TYPE1
6
TUN TYPE2
7
AVREF1
8
VFD DATAF
9
VFD DATAS
10
VFD CLK
11
L
VFD RST
12
VFD CE
13
ROTARY CCW
14
L
TDF DET
15
PWIC BEEP
16~18
NC
19
RDS AFSL
20
L
TUN ADJ
21
TUN SD
22~24
NC
25
AUD SDA
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26
AUD SCL
27
H
PWIC STBY
28
H
VOL MUTE
.
29
L
PWIC MUTE
30
TUN FANC OUT
4
COMPONENTS DESCRIPTION
"ON" when the base goes "H".
"ON" when the base goes "H".
"ON" when the base goes "H".
I/O
Application
I
DC offset detection input
I
Phone detection
I
Rotary encoder input
-
I
E-VOL setting switch
I
E-VOL setting switch
-
I
Data input from VFD driver
O
Data output to VFD driver
O
Clock output to VFD driver
O
Reset output to VFD driver
O
Chip enable output to VFD driver
I
Rotary encoder input
I
TDF panel detection
O
Beep output
-
O
Tuner RDS mute output
I
For adjusting IC10
I
Tuner search stop output
-
I/O
Volume + tuner I2C data input and output
I/O
Volume + tuner I2C clock input and output
x
ao
u163
y
O
Power IC standby output
O
E-VOL mute output
i
O
Power IC mute output
Tuner block (inside the µ-com) check
O
2 9
8
Operation / Condition
NAVI MUTE : Over 2.5V, TEL MUTE : Below 1V
Q Q
3
6 7
1 3
1 5
Refer to "TUN TYPE" on the TRUTH TABLE
Refer to "TUN TYPE" on the TRUTH TABLE
Display OFF, Key reset, TDF panel OFF : L
Display ON, Key scan : H
TDF panel OFF : H, TDF panel ON : L
Refer to "RDS AFSL" on the TRUTH TABLE
Adjustment=H, PS1-1,2=L, PS1-3=Hi-Z,
PS2-1,2=Hi-Z, TUN DATA, CLK=Hi-Z
H : Station exists, L : Station does not exist
co
Power IC ON : H, Power IC OFF : L
L : Mute OFF, Hi-Z : Mute ON
.
Power OFF : L, Standby : L, Tel mute : L
OK : L, NG : H
9 4
2 8
Processing Operation
0 5
8
2 9
9 4
2 8
m
9 9
9 9
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