35
W / LED, No Backlight
Check R803=12V
NG
OK
Check adapter or MB
Check ON/OFF
Check Interface board
NG
OK
Check IC801
NG
OK
Change
NG
OK
Change IC801
Check the input of Q805, Q806
NG
Check the output of PT801, PT802
Check connecter & lamp
OK
NG
Change PT801, PT802
OK
Check IC801 PIN15 have the output of square wave at short time
Change Q805, Q806,D801,D802,D803,Q804
Summary of Contents for AT1945
Page 1: ...1 Acer AT1945 AT1946 Service Guide ...
Page 7: ...7 Monitor Features General Specifications Chapter 1 ...
Page 8: ...8 ...
Page 13: ...13 Optical Specifications Test Conditions Optical Specifications ...
Page 14: ...14 Connecting Peripherals Front panel controls Chapter 2 ...
Page 17: ...17 Using the OSD Menus ...
Page 18: ...18 ...
Page 19: ...19 ...
Page 20: ...20 ...
Page 21: ...21 ...
Page 22: ...22 ...
Page 23: ...23 ...
Page 24: ...24 ...
Page 29: ...29 Fig 9 Fig 10 Disassemble the IR board Fig 11 Disassemble the front panel ...
Page 30: ...30 Fig 12 ...
Page 42: ...42 PCB Layout Main Board Layout Chapter 8 ...
Page 43: ...43 ...
Page 44: ...44 Power Board ...
Page 45: ...45 Key Board IR board ...