LG MCV902 Service Manual page 59

1-8. READING OK CHECK #E (= "NO DISC" DISPLAY)
E
DOES
TA+ WAVEFORM
APPEAR AT (IC802 PIN17
ANDPN801 PIN14) WAVEFORM
#5 TRACKING COIL
DRIVEWAVE
YES
CHECK PN802
CONNECTOR LINE
YES
DOES
ARF SIGNAL APPEAR?
(IC801 PIN 2)
WAVEFORM #6
YES
DOES FE, TE SIGNAL
APPEAR? (IC801 PIN10 :
RFMON, PIN16 : TE)
WAVEFORM #6
* REMON IS FE
DOES
TAIN- WAVEFORM
NO
APPEAR AT (IC802 PIN22)
WAVEFORM #5
TRACKING DRIVE
WAVE
DEFECTIVE IC802
NO
DEFECTIVE PN802
CONNECTOR
NO
DEFECTIVE PICKUP OR IC801
NO
DEFECTIVE PICKUP OR IC801
4-8
NO
YES
DEFECTIVE IC801