36
2.) No Backlight
Check if the input voltage of inverter part is 16V
NG
OK
Check adapter part
Check ON/OFF signal
Check Interface board
NG
OK
Check IC801 PIN12=14.5V
NG
OK
Check ON/OFF circuit
Check IC801 PIN5 have triangle wave
NG
OK
Change IC801
Check IC801 PIN9/PIN10 PWM wave
NG
OK
Check R816/R817/R818/R819
Check the output of PT801
Check connecter & lamp
OK
NG
Change PT801
Summary of Contents for X233HZ
Page 1: ...1 Acer X233HZ X243HQ Service Guide...
Page 11: ...11 Back light Unit Electrical Characteristics...
Page 12: ...12 Optical Specifications...
Page 25: ...25...
Page 26: ...26...
Page 30: ...30 5 The panel...