Acer AL1602W 서비스 매뉴얼 - 페이지 33
{카테고리_이름} Acer AL1602W에 대한 서비스 매뉴얼을 온라인으로 검색하거나 PDF를 다운로드하세요. Acer AL1602W 45 페이지.
페이지 인쇄6. No Backlight
Check the input voltage of 12V
NG
OK
Check adapter and F801
Check ON/OFF signal
NG
OK
Check Interface board or main board
Check IC801 PIN12=12V
NG
OK
Change on/off circuit
Check IC801 PIN5 have triangle wave
NG
Change IC801
OK
Check IC801 PIN9/PIN10 PWM wave
NG
OK
Check IC801
Check Q802 Drain wave
NG
Change Q802
OK
Check the output of T801, T802
NG
OK
Change T801
Check connecter & lamp, feedback and protect circuit
33