LG LPC-LM530A Manual page 10

• READING OK CHECK #A(="NO DISC" DISPLAY)
A
DOSE SL+ WAVEFORM
NO
APPEAR AT(IC503 PIN 1 4 AND
PN503 PIN3)WAVEFORM #2
SLED MOTOR WAVE
DOSE SLIN WAVEFORM
NO
APPEAR AT (IC503 PIN5)
DEFECTIVE IC50
WAVEFORM #2 SLED
DRIVE WAVE
YES
NO
DEFECTIVE IC503
NO
DEFECTIVE PN503
CHECK PN503 CONNECTOR LINE
CONNECTOR
NO
DEFECTIVE PICK UP
SLED MOTOR
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