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6. TROUBLESHOOTING GUIDE
CD PART
Is the function selector in the CD
position?
YES
NO
Is power turned ON? Check power supply circuitry.
YES
NO
Does initial reading occur? Check laser circuitry.
YES
Check focusing circuitry.
Check disc.
NO
Can disc be played? Check tracking servo circuitry.
YES
NO
Is audio output supplied? Check Audio circuitry.
YES
OK
END
1. If initial reading is not carried out (with disc)
NO Is IC601 Pin 18 output NO
Does disc motor rotate?
waveform normal?