
21.5
″
LCD Color Monitor BenQ E2220HD
54
Power Board
Inrush
Prevention
Fuse For OLP
Output (+5V) To Main Board &
AUDIO
Driver Circuit
( Full Bridge )
PWM Control Circuit
( PWM Control IC _O2_TA9687 )
CCFL Lamp * 4 pcs
ON / OFF Control Signal
( 5v: on / 0v:off )
Abnormal Protect
Control Circuit
Main
Transformer
Switching Circuit
( PWM Control IC
& MOSFET )
Feedback
Control
Circuit
Inverter Block Circuit
Dimming
Control
Circuit
Rectification
B+
Rectification
Feedback Control
Circuit
Dimming Control Signal
(Burst model Signal )
Output (+16V) For USB*4Port
Adapter Block Circuit
EMI Filter
Circuit
Input AC Source
110v / 60 Hz ~
240v / 50 Hz
Diode Rectifier
and Filter Circuit
DC To AC
Transformer
( EEL-19 * 1 pcs )
Diode Rectifier
and Filter Circuit
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...