22" LCD Color Monitor ASI DW22MBD
34
2.) No Backlight
Check F801=12V
NG
OK
Check adapter and F801
Check ON/OFF signal
Check Interface board or main board
NG
OK
Check IC801 PIN12=10.5V
NG
OK
Change on/off circuit
Check IC801 PIN5 have triangle wave
NG
OK
Change IC801
Check IC801 PIN9/PIN10 PWM wave
NG
OK
Check IC801
Check Q802, Q803 Drain wave
NG
Check the output of T801, T802
Check Q801/Q804/Q811/Q812
Check connecter & lamp, feedback and protect circuit
OK
NG
Change T801, T802
OK
All manuals and user guides at all-guides.com
Содержание DW22MBD
Страница 24: ...22 LCD Color Monitor ASI DW22MBD 24 7 PCB Layout 7 1 Main Board All manuals and user guides at all guides com...
Страница 25: ...22 LCD Color Monitor ASI DW22MBD 25 All manuals and user guides at all guides com...
Страница 26: ...22 LCD Color Monitor ASI DW22MBD 26 All manuals and user guides at all guides com a l l g u i d e s c o m...
Страница 27: ...22 LCD Color Monitor ASI DW22MBD 27 7 2 Power Board All manuals and user guides at all guides com...
Страница 28: ...22 LCD Color Monitor ASI DW22MBD 28 7 3 Key Board All manuals and user guides at all guides com...
Страница 38: ...22 LCD Color Monitor ASI DW22MBD 38 10 Monitor Exploded View All manuals and user guides at all guides com...