I have 3 Dell monitors (model 2407WFP) that don't have any power. I have replaced all of the caps in the power board and main board, checked the fuse and other parts. I still can't get any power. I'm not sure what else the problem might be. Any other suggestions before I start buying replacement boards, or I trash them would be greatly appreciated.
Be sure you check the MOV protective components and High Voltage circuit as well. Component level repair on monitors is very tricky.
So many of the circuits are dependent on each other. You could chase your tail for a long time trying to figure out.
SOURCE: NEC monitor no power, power light blinks
How did you check the capacitors without pulling them off the board?
SOURCE: LCD MONITOR - NO POWER
Thanks so much.
I have repaired the inverter/power board.
Best regard.
SOURCE: Dell E153FP monitor
I have a Dell E173FP LCD, my monitor don't want to stop showing his Main menu , I had the problem since 3 months and didn't get a solution for it , some time it keeps showing the main Menu without stoping ,sometime not...crazy monitor.... But i have a friend that faced same prob and toldme to open the it and see inside it if there is a detached cable or anything...just don't know how to..please tell us a soultion.
SOURCE: BenQ FP51g LCD monitor
Dear Friend:
There is a Switch transistor to power on -off the hi voltaje for lights. Check 15V from power source go to this transistor colector, Using soldering Iron, make a juntion between colector and emiter, to short 15V to Hi voltaje power. I´m fixing 10 monitor the same trouble. I will remove a liter transistor.
Late I will post here the driver transistor number, and the replace number transistor I will use.
Pictures , etc. Best Regard
SOURCE: monitor fuse keeps blowing
There is definately a shorted component that causes the fuse to blow. Nomaly the ceremic capacitors are the cause of the problem. Check to see if there is visiual dark or burnt ceremic caps with label sameting like this "SCK 083" near the fuse area and change it. Hope it helps,cheers.
Basic LCD monitor and TV troubleshooting guide:
http://www.fixya.com/support/r6150077-basic_lcd_monitors_troubleshooting
http://www.fixya.com/support/r5093881-lcd_flat_panel_tv_troubleshooting_guide
http://www.fixya.com/support/r7406380-tv_training_manuals
Failed TV and Monitors pictures: http://s807.photobucket.com/albums/yy352/budm/
Learn about bad caps: http://en.wikipedia.org/wiki/Capacitor_plague
Capacitors kit: http://lcdalternatives.auctivacommerce.com/ he can make you a set of caps for you.
Or www.digikey.com just make sure to use caps with low ESR, 105c, high ripple current, long life rating such as PANASONIC FM or FC series.
Basic LCD monitor and TV troubleshooting guide:
http://www.fixya.com/support/r6150077-basic_lcd_monitors_troubleshooting
http://www.fixya.com/support/r5093881-lcd_flat_panel_tv_troubleshooting_guide
Failed TV and Monitors: http://s807.photobucket.com/albums/yy352/budm/
Learn about bad caps: http://en.wikipedia.org/wiki/Capacitor_plague
Capacitors kit: http://lcdalternatives.auctivacommerce.com/ he can make you a set of caps for you. Replacement board: http://www.lcdrepair.us
Or www.digikey.com just make sure to use caps with low ESR, 105c, high ripple current, long life rating such as PANASONIC FM or FC series.
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