LG LX-M240 D - Page 16

- 2-10 -
• READING OK CHECK #E (= “NO DISC” DISPLAY)
E
EE
E
DOES TA+ WAVEFORM APPEAR
AT ( IC503 PIN17 AND PN503 PIN15)
WAVEFORM #5
TRACKING COIL DRIVE WAVE
DOES TAIN- WAVEFORM
APPEAR AT
( IC503 PIN 23) WAVEFORM
#5 TRACKING DRIVE WAVE
DEFECTIVE IC501
DEFECTIVE IC503
CHECK PN503 CONNECTOR LINE
DOES ARF SIGNAL APPEAR?
(IC502 PORT 8)
WAVEFORM #6
DOES FE, TE SIGNAL APPEAR?
(IC502 PORT FE:23, TE:21)
WAVEFORM #6
DEFECTIVE IC501
DEFECTIVE PN503
CONNECTOR
DEFECTIVE PICKUP OR
IC502
DEFECTIVE PICKUP OR
IC502
YES
YES
YES
YES
NO
NO
NO
NO
NO
NO
NO