Kenwood KDC-M6024/G, Service Manual

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KDC-M6024/G/GY/Y
KDC-MP522,X569
3
COMPONENTS DESCRIPTION
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CD PLAYER UNIT (X32-5410-00)
Ref.No. Component Name Application/Functions Operation/Condition/Compatibility
IC1 TAR5S33 3.3V AVR For audio circuit(3.3V AVR)
IC2 NJM4580V Low pass filter 2nd low pass filter for audio signals
IC4 BA5824FP 4CH BTL driver Focusing coil, tracking coil, spindle motor and sled motor driver, disc
loading and eject operation.
IC6 L88MS33T AVR 3.3V AVR
IC7 703033BYGC-J02 MI-COM Mechanism control microcomputer
IC8 TC74HCT7007AF Level shifter Level shift for voltage 3.3V to 5.0V
IC11 UPD63760GJ CD signal processor Generation of RF signal based on the signals from the APC circuit and
pickup,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 MP3 decoder.
IC13 MSM51V4265EP70 DRAM Data buffer
Q1 DTA143XUA A.8V SW When Q5 gose "ON", Q1 is ON
Q2 DTC124EUA 3.3V AVR SW When P ON signal gose "ON" Q2 is ON
Q3 DTC124EUA A.8V SW When P ON signal gose "ON" Q4 is ON
Q4 MCH6101 APC LD power control
Q5 DTA143EUA D.5V SW When P ON signal gose "L" Q5 is ON
D1 DAN202U Protection diode Laser diode protection
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ELECTRIC UNIT (X25-9570-1x/9572-71/9712-70)
Ref.No. Component Name Application/Functions Operation/Condition/Compatibility
IC1 UPD703030GC012 System microcomputer Control for TUNER unit, CD mechanism, volume & tone, LCD driver and
external CD changer unit
IC2 TDA7411 Electronic volume & N.C.MPX Control for source selector, volume & tone, and FM multiplex detector.
IC3 BA4911-V4 Power supply IC Power supply for the units (Bu5V, Audio8V, FM+B, AM+B, P-con and ANT-con).
IC4 TA8273H Audio power amp IC Amplifier for audio signal to derive for 4channel speakers (50W maximum
for each channel).
IC6 HD74HC27FP Muting control IC Control for timing for mute.
IC7 SAA6581T RDS decoder Decode for RDS signal.
IC8 PST3436UL Reset IC When detection voltage goes below 3.5V or less Reset IC output change
to "L" signal.
IC9 SI-8050JD Switching regulator Power supply for MP3 CD mecanism unit.
Q1 2SC4081 Serge detection When backup voltage become more than 24V output is "L" (momentary
power down) / When backup voltage become less than 24V output is "H".
Q2 2SC4081 Backup detection When BU voltage supplied output is "L" / When BU voltage not supplied
or momentary power down is detected output is "H".
Q3 2SC4081 ACC detection When ACC voltage supplied output is "L".
Q4 2SA1036K SW 5V When base voltage is "L" Q4 is ON.
Q21 2SD2375 AVR Servo regulator.
Q22 UMC2N SW Servo SW.
Q23 UMC2N IC control Power supply IC controller.
Q31 UN5213 Dimmer control When base voltage is "H" dimmer is ON.
Q32 DTA123JK EXT. AMP control Control to EXE.AMP for pulse width signal.
Q41 2SC4081 SW Switching regulator control SW.
SW1 OUT
1.5-3.0V Audio ON
3.5-5.0V Audio, P-con ON
7.0V- Audio, P-con, P-ant ON
SW2
2.0-3.0V Illumination, FM ON
4.0V- Illumination, AM ON
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