LCD Color Monitor ENVISION P851
36
No backlight
Check the input voltage of 12V
NG
OK
Check adapter and F801
Check ON/OFF signal
Check Interface board or main board
NG
OK
Check IC801 PIN12=12V
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 Drain wave
NG
Check the output of T801
Change Q802
Check connecter & lamp, feedback and protect circuit
OK
NG
Change T801
OK
Содержание ENVISION P851
Страница 15: ...LCD Color Monitor ENVISION P851 15 2 Backlight ...
Страница 27: ...LCD Color Monitor ENVISION P851 27 7 PCB Layout 7 1 Main Board ...
Страница 28: ...LCD Color Monitor ENVISION P851 28 7 2 Power Board ...
Страница 29: ...LCD Color Monitor ENVISION P851 29 7 3 Key Board ...
Страница 40: ...LCD Color Monitor ENVISION P851 40 10 Monitor Exploded View ...