21.5
″
LCD Color Monitor BenQ E2220HD
74
(2). W / LED, No Backlight
Check Inverter input =16V
NG
OK
Check adapter and F801
Check ON/OFF signal
Check Interface board or main board
NG
OK
Check IC801 PIN 11=5V
NG
OK
Change ON/OFF circuit
Check IC801 PIN8/PIN9 PWM wave
NG
OK
Check IC801
Check Q805, Q806 Drain wave
NG
Check the output of PT801
Change Q805, Q806
Check connecter & lamp, feedback and protect circuit
OK
NG
Change PT801
OK
Содержание E2220HD
Страница 47: ...21 5 LCD Color Monitor BenQ E2220HD 47 Six angles view...
Страница 76: ...21 5 LCD Color Monitor BenQ E2220HD 76 PCB LAYOUT Main Board...
Страница 77: ...21 5 LCD Color Monitor BenQ E2220HD 77...
Страница 78: ...21 5 LCD Color Monitor BenQ E2220HD 78 Power Board...
Страница 79: ...21 5 LCD Color Monitor BenQ E2220HD 79...
Страница 80: ...21 5 LCD Color Monitor BenQ E2220HD 80...
Страница 81: ...21 5 LCD Color Monitor BenQ E2220HD 81 USB Board...
Страница 82: ...21 5 LCD Color Monitor BenQ E2220HD 82 Key Board...