Question about Dell E176FP 17" LCD Monitor

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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

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You should use good caps such as PANASONIC FM or FC series from DIGIKEY because they are LOW ESR type, 105C rating, and high ripple current handling. If you put in general purpose caps, they may last only weeks or few months.

Posted on May 16, 2010


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Hit power button, powrers up for a few seconds, then goes off. Dell 1704FPTt Flat Panel.

Please see my pictures here and look for bad caps as shown in my pictures.

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:
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:

Learn about bad caps:

Capacitors kit: he can make you a set of caps for you.

Replacement board:

Nov 10, 2010 | Dell 1704FPTt 17" TFT LCD Flat Panel...

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Dell 17'' lcd Model 1704FPTt Purchased s/hand. Replaced 3 caps 1000uf ,10v After about three weeks the same 3 caps failed again. What to check now (thank you)

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.

Mar 23, 2010 | Dell E176FP 17" LCD Monitor

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Monitor stays on for two seconds and cuts off.

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):

Worst case will be bad lamps.

Feb 18, 2010 | Dell UltraSharp 1704FPT 17" Flat Panel LCD...

2 Answers

Dell monitor power on and power light goes on and off

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:

Feb 16, 2010 | Dell E176FP 17" LCD Monitor

1 Answer

My Dell flat panel monitor #1704FPTt will not stay lighted for more than 1 second. It started fading when first turned on about 2 weeks ago, otherwise it has been fine. Can it be fixed (it is about 8 years...

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):

Jan 20, 2010 | Dell 1704FPTt 17" TFT LCD Flat Panel...

1 Answer

Lcd 17" 1704FPTt monitor Starts then powers off in 2 sedconds

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

Jan 12, 2010 | Dell E173FP 17" LCD Monitor

2 Answers

Dell 1704FPTt 17" TFT LCD Flat

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,

Mar 02, 2008 | Dell 1704FPTt 17" TFT LCD Flat Panel...

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