42
No Power & LED Off
No power
Check primary
rectifier voltage
Check IC802,
C804, T801,
Check circuit if
short
Check F801, P801,
RT,801,D801
Check pin7 of IC802
voltage about 16V
CheckC810, D803, C807,
Check pin2 of IC802 voltage
about 3V
Check primary OVP, OLP and secondary
feedback, OVP circuit
Check pin5 of IC802
voltage is below 1.4V
Check R833, R834, R835,
R804, R807, c812
END
Summary of Contents for G2220HD - 21.5" LCD Monitor
Page 17: ...17 Power Off 1W Off...
Page 21: ...21 5 Stick the foil 6 Stick the foil 7 Plug in the keypad cable 8 Assemble the back cover...
Page 22: ...22 9 Assemble the stand and screw the screws 10 Assemble the base...
Page 25: ...25 5 Remove the keypad cable 6 Pull out the lamp wire 7 Remove the foil 8 Remove the foil...
Page 26: ...26 9 Pull out the LVDS 10 Remove the chassis 11 Remove the keypad 12 Remove the panel...
Page 27: ...27 5 4 Block diagram Power Board...
Page 28: ...28...
Page 29: ...29...
Page 30: ...30...
Page 31: ...31 IF Board...
Page 32: ...32...
Page 33: ...33...
Page 34: ...34...
Page 35: ...35 5 5 Lay out 5 5 1 IF board lay out...
Page 36: ...36...
Page 37: ...37 5 5 2 P I Board lay out...
Page 47: ...47 6 Dimmession Drawing...