Regarding dell 17'' lcd Model 1704FPTt caps(first) thank you with your knowledgeable posts. I replaced the 3 caps with 85c type I just went on the 1000uf and the 10v. The type is Suntan CD286. I'm a armature armed only with a muiltimetre. Thanks

http://s807.photobucket.com/albums/yy352/budm/Dell%201704FPT/

No bad caps, blown fuses?

Please see my pictures here and look for bad caps as shown in my pictures.
http://s807.photobucket.com/albums/yy352/budm/Dell%201704FPT/

If you are going to DIY and have proper tools and know safety precaution then please read on:
Most common failures in the LCD monitors are bad capacitors (bulging top/seal or leaking) in the power supply (they should be replaced in a set), blown fuses; poor solder joints, failed inverter circuits (blown fuse, shorted transistors, shorted/open transformers), bad lamps (poor solder connections or worn out lamps). You will need to open it up and inspect the inside, see example of failed DELL monitors to get some ideas what to look for: http://s807.photobucket.com/home/budm/allalbums
Post back what you see inside so we can guide you further and it will help out other people in the future also.

Basic LCD monitor troubleshooting guide:
http://www.fixya.com/support/r6150077-basic_lcd_monitors_troubleshooting

http://www.fixya.com/support/r5093881-lcd_flat_panel_tv_troubleshooting_guide

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

Look for bad caps first: http://s807.photobucket.com/albums/yy352/budm/Dell%201704FPT/

Basic LCD monitor troubleshooting guide:

http://www.fixya.com/support/r6150077-basic_lcd_monitors_troubleshooting

Failed TV and Monitors: http://s807.photobucket.com/home/budm/allalbums

http://en.wikipedia.org/wiki/Capacitor_plague
Capacitors kit: http://lcdalternatives.auctivacommerce.com/ he can make you a set of caps for you.
Please post back what you find.

I always replace as a set, there are 8 large caps by the heat sink (for the 5v logic and 12-18v back light circuits) and 2 more large caps by the inverter transformers as shown in the pictures: http://s807.photobucket.com/albums/yy352/budm/Dell%201704FPT/

http://www.badcaps.net/
http://en.wikipedia.org/wiki/Capacitor_plague

Hi, sorry to hear you didn't prevail, i have been doing this for over 30 years and some still stump me... But you see, just changing the capacitors well seldom permanently "Fix" anything for very long. You see, those "Blown Capacitors" were a "SYMPTOM" and are a "RESULT" of some other problem, seldom these days for capacitors fault, Unless, they are overheated. To spontaneously fail. The thing that "Kills" Capacitors, is AC Ripple/Voltage, and Over-voltage. So you see you MUST first find why those conditions exist before you can even begin to replace anything Capacitors included. So as ALWAYS the first place we start is at the Power Supply, now you make sure those voltages are correct. and if they aren't find out what not, and what is causing the problem. Then, in that way you can isolate the fault and fix the cause at the same time. That way it is "Fixed" and not symptomatically treated. Also it is nearly impossible to do anything without a service manual, you MUST try to get one of those, they will also help you identify exactly what is wrong and where to look and what to do.

First place to look is the caps in the power supply section, look for caps with bulging top, replace all will be best bet even you only find one bad cap. Here are the boards (there are two versions): http://www.lcdrepair.us/1704fptt-1905fp-inverter-power.html

http://www.lcdrepair.us/1905fp-inverter-power.html

Worst case will be bad lamps.

First place to look will be the power supply caps, look for caps with bulging top, post back what you see inside so we can guide you further, see example of failed monitors due to bad caps: http://s807.photobucket.com/home/budm/allalbums

http://www.lcdrepair.us/e176-177fpc-inverter-power.html

http://www.lcdrepair.us/e176FPf-inverter-power-logic.html

http://www.lcdrepair.us/e176-177fpm-inverter-power.html

Fist place to check will be the power supply, look for bad caps with bulging tops, check to see if you do have 12vdc feeding the back light inverter circuits, see example of failed monitors (90% are due to bad caps): http://s807.photobucket.com/home/budm/allalbums

Look for shorted out transistors (4) (C5606/5707) in the inverter transformer driving circuits.

I used to repair LCD monitor from Dell. There are 4 screws for rear panel and no screw for front frame. If there is no visible screw, you have to look for "capped" screw holes (little covers that fit flush with the case to hide the screws). If you don't see these neither, this must be a tension fit case. So, face the screen up and look for "rectangular hole" on the side edge (usually at the bottom edge of the screen). This will be a challenge to open without breaking it. You'll need a very thin flat screw driver and wedge it into that narrow rectangular hole. You can use any prybar if you don't have screw driver. It is not too deep. You may stab something important inside and pry it. Once it starts to spread, start sliding it along the seem and you should feel the tension tabs start "popping" open. Continue to work your way around until it's off. Hope this will help you to get the rear panel off. If there is anything I can help you with, feel free to let me know.
Thank you,