Components Description; Cd Player Unit (X32-5650-00) - Kenwood KDC-CMP21V Service Manual

CD PLAYER UNIT (X32-5650-00)

Ref. No. Application / Function
IC1 Reset IC
IC2 System microprocessor
IC3 EEPROM
IC4 Mechanism control IC
IC5 Video amp
IC6 AVR
IC7 Video decoder
IC8 DRAM
IC9 Flash ROM
IC10 Selector
IC11 Decoder
IC12 CD servo IC
IC13 AVR
IC14 Audio DAC
IC15 Motor driver
IC16 AVR
IC17 AVR
IC18 AVR
Q1,2 SW
Q3,6 SW
Q5 Driver
Q7 SW
Q8 Driver
Q11 Driver
Q12 BU det
Q20 Parking det
Q21 Reset SW
Q22 SW
Q23 SW
Q24 SW
Q25,26 Level shift
Q27,28 Audio muting SW
Q40 SW
Q52 SW
Q70 Selector SW
Q71 VC SW
Q72 LD SW
Q73 VC SW
Q90~93 Audio muting SW
Q100 Vref selector

COMPONENTS DESCRIPTION

System microprocessor reset control IC
Communication to head unit and control for mechanism control IC
LPS data backup memory (for MD position)
Control for Mechanism assy, servo IC and MP3/WMA decoder
Video amp for composite video signal
2.6V (for IC7 VCC)
Video CD decoder IC
For playback video data
Program memory for VCD decode
Select for VCD line or MP3/WMA data line
MP3/WMA decoder IC
RF amplifier built in digital servo and data processor IC
5.0V (for audio and IC14 VDD)
Audio DA converter
Focusing coil, tracking coil, spindle motor and sled motor driver
5.0V (for IC7 VDD)
3.3V, 2.5V (for BU), IC4, IC11 VDD
3.3v (for IC12 VDD)
AVR 8V control SW
AVR 6.2V control SW
AVR 5V driver
Select for 8V and 7V voltage
AVR 6.2V driver
AVR 8V driver
Backup line voltage detector
Parking SW detector
Reset control SW (for system microprocessor)
Changer muting control
Changer control SW
AVR 5V control SW
Voltage level shift (5.0V→3.3V, 3.3V→5.0V)
Q27 (for Lch), Q28 (for Rch)
System reset for IC4
System reset for IC7
Selector IC control SW
Control for Q73
Control for APC
Eccentric disc SW (for sub beam F)
Q90,93 (Rch), Q91,92 (Lch)
Select for internal Verf or external Vref
KDC-CMP21V
Operation / Condition / Compatibility
3