KDC-CMP21V
3
●
CD PLAYER UNIT (X32-5650-00)
Ref. No.
Application / Function
Operation / Condition / Compatibility
IC1
Reset IC
System microprocessor reset control IC
IC2
System microprocessor
Communication to head unit and control for mechanism control IC
IC3
EEPROM
LPS data backup memory (for MD position)
IC4
Mechanism control IC
Control for Mechanism assy, servo IC and MP3/WMA decoder
IC5
Video amp
Video amp for composite video signal
IC6
AVR
2.6V (for IC7 VCC)
IC7
Video decoder
Video CD decoder IC
IC8
DRAM
For playback video data
IC9
Flash ROM
Program memory for VCD decode
IC10
Selector
Select for VCD line or MP3/WMA data line
IC11
Decoder
MP3/WMA decoder IC
IC12
CD servo IC
RF amplifier built in digital servo and data processor IC
IC13
AVR
5.0V (for audio and IC14 VDD)
IC14
Audio DAC
Audio DA converter
IC15
Motor driver
Focusing coil, tracking coil, spindle motor and sled motor driver
IC16
AVR
5.0V (for IC7 VDD)
IC17
AVR
3.3V, 2.5V (for BU), IC4, IC11 VDD
IC18
AVR
3.3v (for IC12 VDD)
Q1,2
SW
AVR 8V control SW
Q3,6
SW
AVR 6.2V control SW
Q5
Driver
AVR 5V driver
Q7
SW
Select for 8V and 7V voltage
Q8
Driver
AVR 6.2V driver
Q11
Driver
AVR 8V driver
Q12
BU det
Backup line voltage detector
Q20
Parking det
Parking SW detector
Q21
Reset SW
Reset control SW (for system microprocessor)
Q22
SW
Changer muting control
Q23
SW
Changer control SW
Q24
SW
AVR 5V control SW
Q25,26
Level shift
Voltage level shift (5.0V
→
3.3V, 3.3V
→
5.0V)
Q27,28
Audio muting SW
Q27 (for Lch), Q28 (for Rch)
Q40
SW
System reset for IC4
Q52
SW
System reset for IC7
Q70
Selector SW
Selector IC control SW
Q71
VC SW
Control for Q73
Q72
LD SW
Control for APC
Q73
VC SW
Eccentric disc SW (for sub beam F)
Q90~93
Audio muting SW
Q90,93 (Rch), Q91,92 (Lch)
Q100
Vref selector
Select for internal Verf or external Vref
COMPONENTS DESCRIPTION