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KDC-W4031/W4031Y/W409/W409Y
KDC-W431GY/W4531/W4531Y/WF431A
Ref. No.
Application / Function
IC8
SELECTOR (SERIAL DATA)
IC9
DAC 3.3V AVR
Q1
LEVEL SHIFT
Q3~7
LEVEL SHIFT
Q8
AUTOMATIC POWER CONTROL
Q9,10
SWITCH
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
5
TUN TYPE1
6
TUN TYPE2
7
AVREF1
8
VFD DATAF
9
VFD DATAS
10
VFD CLK
4
COMPONENTS DESCRIPTION
Serial audio data switch.
3.3V power supply for IC2.
3.3V to 5.0V.
3.3V to 5.0V.
LD driver.
Switch for anticipation sub-beam delay.
"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
Operation / Condition
Operation / Condition
Processing Operation
NAVI MUTE : Over 2.5V, TEL MUTE : Below 1V
Refer to "TUN TYPE" on the TRUTH TABLE
Refer to "TUN TYPE" on the TRUTH TABLE
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