Samsung 226BW Service Manual - Page 42
No Video PC Analog Signal
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UPC - 729507700663
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4-2 No Video (PC Analog Signal) 4 Troubleshooting 5 Is pin9 of CN700(BKLT_EN)high(3.3V)? No Check TFT_LCD panel or inverter and connection between then. Yes Does the analog video signal No appear at R104, R105, R106 6 (Red,Green,Blue)? Yes 7 Does the X710 No oscilate Properly? Yes Replace LCD Panel. Check pc signal. Check the X300. 4-3
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4 Troubleshooting
4-3
Is pin9 of
CN700(BKLT_EN)high(3.3V)?
4-2 No Video (PC Analog Signal)
5
Check TFT_LCD panel or inverter
and connection between then.
Yes
No
Does the analog video signal
appear at R104, R105, R106
(Red,Green,Blue)?
Check pc signal.
Yes
No
Does the X710
oscilate Properly?
Check the X300.
No
Yes
Replace LCD Panel.
6
7