5
KDC-MP225,MP4026/G
KDC-W4527/G/GY/Y,W427Y
Ref. No.
Application / Function
Operation / Condition / Compatibility
Q252
For surge measure of audio power IC
When base voltage to "L", for control to power IC function (STAND BY)
Q350
Pre & NF mute SW
When base voltage to "L", drive to pre & NF mute SW (Q351)
Q351
Pre mute SW
When base voltage to "H", muting to the pre Lch or NF Lch line
Q352
Pre mute SW
When base voltage to "H", muting to the pre Rch or NF Rch line
Q401
DSI illumination SW
When base voltage to "H", DSI illumination is light up.
CD PLAYER UNIT (X32-5500-00)
Ref. No.
Application / Function
Operation / Condition / Compatibility
Generation of RF signal based on the signals from the APC circuit and pickup, and generation
IC1
RF amplifier adapted for CD-RW
of servo error (focusing error and tracking error) signals. Detection of dropout, anti-shock,
track crossing and off-track conditions, included gain control function during CD-RW.
Focusing, tracking, sled and spindle servo processing. Automatic adjustment (focusing,
IC2
CD signal processor built-in MI-COM
tracking, gain, offset and balance) operations. Digital signal processing (DSP, PLL, sub-codes,
CIRC error correction, audio data Interpol ration) operations, and Microcomputer function.
IC3
MP3/WMA decoder
IC4
4CH BTL driver
Focusing coil, tracking coil, spindle motor and sled motor driver, disc loading and eject operation.
IC5
AVR
For SW3.3V AVR
IC6
AVR
For BU3.3V AVR
IC7
AVR
For BU2.5V AVR
IC8
Selector
Serial audio signal selector IC
IC9
AVR
For IC2 (DAC section) 3.3V AVR
Q1,3~7
Level shift
3.3V
5.0V
Q8
APC
LD power control
Q9,10
SW
Delay to sub beam line (antecedence beam)
D2
Protection diode
IC2 protection (for reset line)
D3
Protection diode
Laser diode protection
COMPONENTS DESCRIPTION
