Question about Dell E173FP 17" LCD Monitor

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I have a Dell E172FPb LCD monitor with a black screen and blinking power light, no leaky or swollen capacitors inside, what can I do to repair it? Thanks.

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  • padq71 Nov 09, 2010

    Hi budmrtn, thanks a lot for your time, I'm going g to follow these directions over the weekend. I'll post back the results.

  • padq71 Nov 17, 2010

    Hey budmrtn, I replaced the transistors, but my local store had bigger ones that needed to be trimmed in order to fit, also the back panel had to be modified, then I resolder all transformers pins, still didn't work, then I replaced the fuse PF 751, problem solved, I did this last Friday, as of today it is still OK. Thanks for your help.

  • padq71 Nov 17, 2010

    Sure, how do I do that?

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Check out the four transistors (c5706/5707) Emitter to Collector (see picture of the transistor in my transistor album for pinout), it should read open circuit (should be checked out off the board). This is common problem. Make sure to inspect the solder joint in on the board, especially around the inverter transformer pins. Make sure the fuse read out less than one Ohm also.
http://s807.photobucket.com/albums/yy352/budm/Dell%20E173FPb/

Basic LCD monitor and LCD 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, Monitors, Caps : http://s807.photobucket.com/home/budm/allalbums

Learn about bad caps: http://en.wikipedia.org/wiki/Capacitor_plague
Capacitor kits: http://lcdalternatives.auctivacommerce.com/ he can make you a set of caps for you.

Replacement board: http://www.lcdrepair.us

Posted on Nov 07, 2010

  • padq71 Nov 09, 2010

    Hi budmrtn, I'm going to follow these directions over the weekend, I'll post the results after that.
    Thanks a lot for your time.

  • Bud Martin
    Bud Martin Nov 17, 2010

    Thank you for the feedback. Please leave a good rating for me.

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alexanderhic, When the ac to dc power supply inside lcd monitors develop "electronic noise" on the dc rails that power up the vga to lcd digital LCD interface board it can cause very "squirrelie" things to appear on the screen of your lcd panel. You will need to visit YOUTUBE to find DIY video clips to know how to disassemble unit to do inspection for BAD SWOLLEN filter capacitors that may have failed and learn how to replace them with new ones. See how many "hits" you get if you query the web for "swollen capacitors" or "bulging capacitors" or "failed electrolytic filter capacitors" or "CapXon capacitors" If this was of some help pllease leave additional comment or testimonial and rate this response on fixya. 12fixlouie

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The power light on our model E172FPb Dell monitor is blinking. The screen does not turn on. What could be the problem


Most common failures in the LCD monitors are bad capacitors (bulging top/seal or leaking) in the power supply, blown fuses, 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.
http://en.wikipedia.org/wiki/Capacitor_plague
http://www.badcaps.net

Boards: www.lcdrepair.us

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1 Answer

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hi, extremely common problem for dell 17 in monitors. the capacitors and transistors on the power board internally have gone bad. to get repaired, it may cost 40-50 at a shop. i have repaired these in the past and they always come out well for at least 3 more years. may want to find another monitor though. if you would like steps on how to repair, let me know and i will find my old repair threads to give to you.

May 12, 2010 | Dell E173FP 17" LCD Monitor

1 Answer

The DELL E172FPb LCD Monitor (switch light flicks green)scr black


You need to open it up and inspect the componente inside, look at the fuse and the transistors in the inverter circuits first, also look for sign of over heating on the board, see pictures here for the guide: http://s807.photobucket.com/home/budm/allalbums

Mar 20, 2010 | Dell E173FP 17" LCD Monitor

1 Answer

Dell E172FPb monitor black screen green flashing power button


Hello,

We have a dis-assebly and repair guide posted on our web site at:
www.ccl-la.com/monitor_repair.htm
The problem is usually the driver transistors, our guide shows where they are and what to replace to get your monitor back running again.

I hope this helps, If so please rate my solution.

Buddy
Corporate Computer
www.ccl-la.com

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1 Answer

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Hello,

If you've tested turning the monitor on without the VGA cable and it's still blinking I'd say there's a problem with one of the capacitors on the power supply card on your screen, when you're able to check it would you mind telling me the brand / reference of it ?

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Monitor


i had a similar issue with my dell E172FPB, I have never seen a E173FP but this link might help you
http://syscon.wordpress.com/2007/07/13/dell-dell-e172fpb-lcd-backlight-repair/

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Just wanted to say Thank You for the info on this site. I had the same problem as previously posted. When powered up, the monitor showed a fast flash of the desktop and then went black, with the power indicator flashing green. I read the posts, purchased the capacitors and the 4 - 2sc5707 transistors through ebay. I ordered them on the 6th and rec'd them today. I only had one bad capacitor and one transistor that checked bad, but I ordered 5 caps and 4 transistors. When ordering the caps be careful of the height of the caps. I found this to be a problem because I ordered the 50v, 105 degree Panasonic caps that didn't fit with the enclosure attached, so I used the 4 good caps removed previously and replaced the bad one with a 470uf, 50v. 85 degree cap from Rubycon I found among my spare parts. Installed the parts and the monitor is working properly (for the last two hours) so I'm happy for as long as the repair lasts. Thanks again for the info.

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