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Dell E153FPc
37
Panel Power Circuit
Inverter Control Relative Circuit
OK
Check R172 should have response from
0V to 5V when we switch the power
switch from on to off
Check the PPWR panel power relative circuit,
Q105, Q104 In normal operation,
when LED =green, R172 should =5V
If PPWR no-response when the power switch
Turn on and turn off, replace the U102
OK
NG
Measured the Q104 pin 3= 5V?
Check U202 pin4, 16, 28=3.3V
OK
NG
Measured the inverter connector CN104
Pin1 on/off control=3.3V (on)
Pin2 PWM signal control dim 0V-5V
Replace Inverter board to new one
And check the screen is normal?
OK
Check the BKlt-On relative circuit,
R162, in normal operation, when LED=green,
R162 BKlt-On should=3.3V, If BKlt-On
no-reponse when the power switch turn
on-off, Replace U102
Check NO SCREEN APPEAR block
NG
NG
NG, still no screen
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Содержание E153FPc
Страница 14: ...Dell E153FPc 14 5 Block Diagram 5 1 Monitor Exploded View www ma163 com 电子技术资料网 ...
Страница 17: ...Dell E153FPc 17 5 2 Software Flow Chart www ma163 com 电子技术资料网 ...
Страница 19: ...Dell E153FPc 19 5 3 Electrical Block Diagram 5 3 1 Main Board www ma163 com 电子技术资料网 ...
Страница 25: ...Dell E153FPc 25 The end Lay the FFCL as the figure show www ma163 com 电子技术资料网 ...
Страница 33: ...Dell E153FPc 33 8 PCB Layout 8 1 Main Board www ma163 com 电子技术资料网 ...
Страница 34: ...Dell E153FPc 34 8 2 Inverter Power Board www ma163 com 电子技术资料网 ...
Страница 45: ...Dell E153FPc 45 www ma163 com 电子技术资料网 ...
Страница 47: ...Dell E153FPc 47 d Select the communication Setting Port Name e Click the ConNect button www ma163 com 电子技术资料网 ...
Страница 61: ...Dell E153FPc 61 14 Definition of Pixel Defects CLAA150XG 09 www ma163 com 电子技术资料网 ...
Страница 62: ...Dell E153FPc 62 www ma163 com 电子技术资料网 ...