27" LCD Color Monitor
Dell 2707WFP
62
9.2 Trouble shooting
9.2.1 Main Board
No power
No power
Press power key and look if
the picture is normal
The AC of 100-240 is normal Please
reinsert and make sure
Reinsert or check the
power section
OK
Measure Q711 PIN 5/6/7/8 = 1.8 V
U701 PIN 2 = 2.5 V
U702 PIN 2 = 3.3 V
NG
NG
OK
Measure CN701 PIN7/8/9 = 12 V
CN701 PIN14 = 5 V
Check power section
NG
OK
Replace U706, Q711, U701, U702
X401 X301 and X501
Oscillate waveforms are normal?
Replace X401,
X301, and X501
NG
OK
Replace U301, U401, U501
Summary of Contents for 2707WFP - UltraSharp - 27" LCD Monitor
Page 24: ...27 LCD Color Monitor Dell 2707WFP 24 ...
Page 33: ...27 LCD Color Monitor Dell 2707WFP 33 5 2 Electrical Block Diagram 5 2 1 Main Board ...
Page 40: ...27 LCD Color Monitor Dell 2707WFP 40 Remove the bezel Remove the Bezel Panel ...
Page 55: ...27 LCD Color Monitor Dell 2707WFP 55 8 PCB Layout 8 1 Main Board ...
Page 56: ...27 LCD Color Monitor Dell 2707WFP 56 ...
Page 57: ...27 LCD Color Monitor Dell 2707WFP 57 8 2 Power Board ...
Page 58: ...27 LCD Color Monitor Dell 2707WFP 58 ...
Page 59: ...27 LCD Color Monitor Dell 2707WFP 59 8 3 Key Board 8 4 USB Board ...
Page 60: ...27 LCD Color Monitor Dell 2707WFP 60 ...
Page 79: ...27 LCD Color Monitor Dell 2707WFP 79 12 Exploded View ...