Acer AL502 Servicehandleiding - Pagina 16
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5. NO OSD display
OK
Trou bl e Sh ooti ng
Check the input of pulse from I300 pin 5, 6.
NG
1) Printed wire broke between I306 pin 5 and I303 pin 9.
2) Printed wire broke between I306 pin 6 and I303 pin 8.
Proceed "Checking the resolution change IC movement" section.
Failure point
A L C502
Page 7