q CD PLAYER UNIT (X32-5400-00)
RF amplifier adapted for CD-RW
Generation of RF signal based on the signals from the APC circuit and
pickup, and generation 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.
CD signal processor built-in MI-COM
Focusing, tracking, sled and spindle servo processing. Automatic
adjustment (focusing, tracking, gain, offset and balance) operations.
Digital signal processing (DSP, PLL, sub-codes, CIRC error correction,
audio data Interpol ration) operations, and Microcomputer function.
4CH BTL driver
Focusing coil, tracking coil, spindle motor and sled motor driver, disc
loading and eject operation.
Low pass filter
2nd low pass filter for audio signals.
LD power control.
When P ON signal gose"L", Q2 is ON.
When P ON signal gose"L" (SW+5V AVR is ON), Q3 is ON.
When P ON signal gose"L" (Q3 is ON), Q4 is ON.
Laser diode protection.
DAC AVR/LPF reference voltage (A.5V).
q ELECTRIC UNIT (X25-9800-11/12/21)
Control for TUNER unit, CD mechanism, volume & tone, LCD driver and
external CD changer unit
Electronic volume & N.C.MPX
Control for source selector, volume & tone, and FM multiplex detector.
Power supply IC
Power supply for the units (Bu5V, Audio8V, FM+B, AM+B, P-con and ANT-con).
Audio power amp IC
Amplifier for audio signal to derive for 4channel speakers (50W maximum
for each channel).
Muting control IC
Control for timing for mute.
When detection voltage goes below 3.5V or less Reset IC output change
to "L" signal.
When backup voltage become more than 24V output is "L" (momentary
power down) / When backup voltage become less than 24V output is "H".
When BU voltage supplied output is "L" / When BU voltage not supplied
or momentary power down is detected output is "H".
When ACC voltage supplied output is "L".
When base voltage is "L" Q4 is ON.
Power supply IC controller.
When base voltage is "H" dimmer is ON.
Audio, P-con ON
Audio, P-con, P-ant ON
Illumination, FM ON
Illumination, AM ON