19" LCD Color Monitor Iiyama PLE1902WS
36
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 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
Summary of Contents for PLE1902WS
Page 3: ...19 LCD Color Monitor Iiyama PLE1902WS 3 1 Monitor Specification ...
Page 6: ...19 LCD Color Monitor Iiyama PLE1902WS 6 3 3 Adjust the Picture ...
Page 7: ...19 LCD Color Monitor Iiyama PLE1902WS 7 ...
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Page 10: ...19 LCD Color Monitor Iiyama PLE1902WS 10 ...
Page 11: ...19 LCD Color Monitor Iiyama PLE1902WS 11 ...
Page 27: ...19 LCD Color Monitor Iiyama PLE1902WS 27 7 PCB Layout 7 1 Main Board 4 B U B Z ...
Page 28: ...19 LCD Color Monitor Iiyama PLE1902WS 28 ...
Page 29: ...19 LCD Color Monitor Iiyama PLE1902WS 29 7 2 Power Board ...
Page 30: ...19 LCD Color Monitor Iiyama PLE1902WS 30 7 3 Key Board ...
Page 40: ...19 LCD Color Monitor Iiyama PLE1902WS 40 10 Monitor Exploded View ...