17” LCD Color Monitor
e-Machines E17T4
32
W / LED, No Backlight
Check VDDA, ENA
VDDA=4.75~5.25V;ENA>3V
OK
NG
Check On/Off loop Circuit
Check ISEN (pin5) normally
Check ISEN loop components
NG
End Striking function debug
Connect TIMER (Pin3) to GND
Check ENA (pin10), OVPT (pin7), CT (pin13), DRV1 (pin1),
DRV2 (pin15) of IC801
Check half bridge power conversion
circuit and Transformer output circuit
OK
NG
Change IC801
OK
OK
Check VSEN (pin6) of IC801
Judge VSEN>0.7V&<OVPT
OK
Check VSEN circuit form lamp’s
return to VSEN (pin6) of IC801
NG
Check pin3 voltage of D801,
D803<2V
OK
End VSEN circuit and
Protection loop debug
Check Protection
circuit, Components
short, open or fail
NG
OK
Содержание e-Machines E17T4
Страница 12: ...17 LCD Color Monitor e Machines E17T4 12 5 Panel Specification 5 1 General Feature 5 2 Display Characteristics ...
Страница 13: ...17 LCD Color Monitor e Machines E17T4 13 5 3 Optical Characteristics ...
Страница 16: ...17 LCD Color Monitor e Machines E17T4 16 6 2 Electrical Block Diagram 6 2 1 Main Board ...
Страница 23: ...17 LCD Color Monitor e Machines E17T4 23 7 2 Power Board 715G1695 1 ...
Страница 24: ...17 LCD Color Monitor e Machines E17T4 24 ...
Страница 25: ...17 LCD Color Monitor e Machines E17T4 25 8 PCB Layout 8 1 Main Board 715G1691 1 ...
Страница 26: ...17 LCD Color Monitor e Machines E17T4 26 8 2 Power Board 715G1695 1 8 3 Key Board 715G1707 1 2 715G1706 1 ...
Страница 38: ...17 LCD Color Monitor e Machines E17T4 38 12 Monitor Exploded View ...