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4
KDC-MP2032/MP232/MP4033/
KDC-MP4033S/W4534/W4534Y
COMPONENTS DESCRIPTION
MICROCOMPUTER’S TERMINAL DESCRIPTION
●
SYSTEM
µ
-COM : IC1 on X34- (ELECTRIC UNIT)
Pin No.
Pin Name
I/O
Application
Truth Value
Processing/Operation/Description
Table
1
DCERR
I
DC offset error detection input
2
LINE MUTE
I
Phone detection
TEL mute: 1V or lower
NAVI mute: 2.5V or higher
3
ROTARY CW
I
Rotary encoder input
4
AVSS
-
5
TUNER TYPE1
I
E-VOL setting switching
q
Refer to the truth value table
6
TUNER TYPE2
I
E-VOL setting switching
q
Refer to the truth value table
7
AVREF1
-
8
VFD DATAF
I
Data input from VFD driver
9
VFD DATAS
O
Data output to VFD driver
10
VFD CLK
O
CLK output to VFD driver
11
VFD RST
O
Reset output to VFD driver
L: Display off, key reset, panel detached
H: Display on, key scan
12
VFD CE
O
CE output to VFD driver
13
ROTARY CCW
I
Rotary encoder input
14
TDF DET
I
Panel detection
H: Panel detached, L: Panel attached
15
PWIC BEEP
O
Beep output
16
LX DATA S
I
Data from slave unit
17
LX DATA M
O
Data to slave unit
18
LX CLK
I/O
LX-BUS clock
19
RDS AFSL
O
Tuner RDS mute output
w
Refer to the truth value table
ADJ=H
20
TUNER ADJ
I
For IC10 adjustment
PS1-1, 2=L PS1-3=Hi-Z, PS2-1, 2=Hi-Z
Tuner data, CLK=Hi-Z
21
TUNER SD
I
Tuner search stop input
H: Station found, L: Station not found
Ref. No.
Application / Function
Operation / Condition
IC5
BU 3.3V regulator
Power supply for backup 3.3V
IC6
D3.3V regulator
Digital 3.3V power supply
IC7
Audio DAC built-in servo DSP
MP3, WMA, and AAC compatible
IC11
Buffer IC
Level shift
Q1
A3.3V discharge circuit
Q4
Current amp
Adjusts current to be sent to laser
Q5,6
SW 5V
Q7,8
SW 8V
D1
For current amp