Switch Unit (X16-2932-7X); Microcomputer's Terminal Description; System Μ-Com : Ic1 On X34- (Electric Unit) - Kenwood KDC-W4031 Service Manual

KDC-W4031/W4031Y/W409/W409Y
KDC-W431GY/W4531/W4531Y/WF431A
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3 7 63 1515 0
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
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L 13942296513

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
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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
-
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y
I Data input from VFD driver
i
O Data output to VFD driver
O Clock output to VFD driver
2 9
8
Operation / Condition
Operation / Condition
Q Q
3 6 7 1 3 1 5
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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.
9 4 2 8
0 5 8 2 9 9 4 2 8
Processing Operation
m
9 9
9 9