Acer AT2645 Service Manual page 33

No Power (No LED indicator)
Check power cord and board interface
OK
Check F901, BD901, C910
OK
Check D902, C920
OK
Check T901
OK
Check D950, C952, C953, C954
No display (LED indicator green)
Check the source
OK
Check LVDS cable
OK
Check 24V power supply
OK
Check BL ON/OFF signal
OK
Check C999 (+) 12V
OK
Check IC903, IC970, IC971, IC904
OK
Check Q921, IC951, IC901
OK
Check U401
OK
Check panel
NG
NG
Replace F901 or BD901 or C910
NG
Replace D902 or C920
NG
Replace T901
NG
Reset source
NG
Reset LVDS cable
NG
Check B+ voltage, T902, D970, C975
NG
Check U409
NG
Replace C999
NG
NG
Replace Q921, IC951, IC901
NG
Replace U401
NG
Replace panel
Plug in power cord and interface
Replace D950 or C952 or C953 or C954
Replace IC903, IC970, IC971, IC904
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