4
KDC-4047UA/4047UG/4047UGY/4047UM
KDC-414UA/414UM/MP245U/U3046/U346/U4046
●
CD PLAYER UNIT (X32-6250-00)
Ref. No.
Application / Function
Operation / Condition / Compatibility
IC3
4ch BTL Driver
Driver for focusing & tracking coil, driver for sled & spindle motor, and operation for disc
loading & ejection.
IC4
Servo DSP with built-in Audio DAC With built-in MP3/WMA/ACC decoder and 1M-bit-SRAM.
IC5
BU1.5V/D3.3V REG.
Power supply for BU1.5V.
Power supply for digital/analogue/audio 3.3V.
Q1
APC (Auto Power Control)
Drives LD (Laser Diode).
Q14
D1.5V Output
Switches ON/OFF at one end of BU1.5V line which is separated into 2 directions.
Uses output voltage as D1.5V.
D2
Laser Diode Protection
Prevents reverse bias which is applied to laser.
Laser destruction prevention.
D3,4
Static Electricity Countermeasure
Prevents malfunction by static electricity.
COMPONENTS DESCRIPTION
MICROCOMPUTER’S TERMINAL DESCRIPTION
●
SYSTEM
μ
-COM : IC1 on X34- (ELECTRIC UNIT)
Pin No.
Pin Name
I/O
Application
Truth Value
Table
Processing / Operation / Description
1~5
NC
-
Not used
Output L
fi
xed
6
REMO
I
Remote control signal input
Detects pulse width
7
NC
-
Not used
Output L
fi
xed
8
BYTE
I
Memory extension bus width setting
Connects to VSS
9
CNVSS
-
Connects to VSS
10
XCIN
-
32.768kHz
11
XCOUT
-
32.768kHz
12
RESET
-
L: Reset
13
XOUT
-
16.0MHz
14
VSS
-
15
XIN
-
16.0MHz
16
VCC1
-
17
NC
-
Not used
Output L
fi
xed
18
PANEL DET
I
Panel communication detection
H: No panel, L: Panel detached
19~24
NC
-
Not used
Output L
fi
xed
25
PON FL
O
Key illumination power supply control
ON: H, OFF: L
26
PON PANEL
I/O Panel 5V control
ON: L, 11 minutes after momentary power-down or
panel detached or ACC OFF: Hi-Z
27
NC
-
Not used
Output L
fi
xed
28
BEEP
O
Beep output
2kHz / 1kHz
29
TUN SCL
I/O Tuner I2C clock output
30
TUN SDA
I/O Tuner I2C data input/output