![background image](http://html1.mh-extra.com/html/benq/m2700hd/m2700hd_service-manual_2734252051.webp)
50
Black Screen
Black Screen
Power Fail
Check power supply
:
Pin1, 2 ,6 ,7of CN101
Check Crystal of U111
Check CCFL
-
Enable
of U111
Scaler Fail
Check: X102
Inverter Fail
OK
NG
OK
OK
NG
Check Reset
Of U111
Check pin14 of
CN101
Check R116,R117,R118,R121
,Q105
Check R251,R252,C248
OK
NG
NG
NG
OK
OK
Check power supply
supply of U111
NG
OK
Check U101,U102,IC101
Summary of Contents for M2700HD
Page 23: ...BenQ M2700HD Service Manual 22 13 Assemble the hinge cover ...
Page 28: ...BenQ M2700HD Service Manual 27 14 Remove the panel ...
Page 29: ...28 5 Circuit Board and Standard Parts Replacement 5 1 Block diagram Power Board ...
Page 30: ...29 ...
Page 31: ...30 ...
Page 32: ...31 ...
Page 33: ...32 IF Board ...
Page 34: ...33 ...
Page 35: ...34 ...
Page 36: ...35 ...
Page 37: ...36 ...
Page 38: ...37 ...
Page 39: ...38 ...
Page 40: ...39 ...
Page 41: ...40 ...
Page 42: ...41 ...
Page 43: ...42 Keypad ...
Page 44: ...43 IF board layout Keypad board layout PI board layout ...