Question about Dell E173FP 17" LCD Monitor

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Dell 17 lcd.power light blinking, now test screen is there but da

I have replaced the transistors, and the fuse but now the power light has stopped blinking, but the test box is barely there. any thoughts?

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Look for other components in the board that are defective. drive to the back light is stil low.

Posted on Jul 31, 2009

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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.


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

Nov 06, 2010 | Dell E173FP 17" LCD Monitor

1 Answer

Hello, my Dell E173FP 17" LCD Monitor has a blinking power light and wont turn on.


It has shorted out transistors in the inverter circuits, check them out first, also check the fuse in the inverters section.
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 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://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

Oct 11, 2010 | Dell E173FP 17" LCD Monitor

1 Answer

THE MONITORES POWER LIGHT KEEPS BLINKING AND THE MONITOR WON'T WORK AND STAYS BLACK


It has shorted out transistors in the inverter circuits, also look for cold solder joints, fuse.
http://s807.photobucket.com/albums/yy352/budm/Dell%20E173FPb/

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, 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 monitors to get some ideas what to look for: http://s807.photobucket.com/home/budm/allalbums

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

Aug 09, 2010 | Dell E173FP 17" LCD Monitor

1 Answer

Monitor led is blinking green but screen is black. Unplugged and replugged all cables already.


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
Replacement board: www.lcdrepair.us

May 19, 2010 | Dell E173FP 17" LCD Monitor

1 Answer

Power light blinks with no picture


Look for bad fuse and transistors in the inverter circuits, see picture of failed Dell monitors here: http://s807.photobucket.com/home/budm/allalbums

Mar 19, 2010 | Dell E172FP 17" LCD Flat Panel Monitor

1 Answer

Dell E173FPs LCD screen (4 years old) is blank, power button is blinking green. I have read numerous articles about the same problem on similar models (E173FPc?) caused by poor solder connections at...


Replacing transistors would be the last thing in that troubleshooting. First, check all electrolytic capacitors if there are any of them "bubbled", replace those. Next, if there is the fuse used for supplying DC voltage to the inverter area, take it off and check if LED will still blink as before. If there's no such fuse, you can cut the trace, supplying DC voltage to the inverter, another words, you need to unload inverter from power supply and check LED behavior then, if it will stay steady, then next steps will be to troubleshoot the inverter, otherwise, using ohmmeter ring all capacitors and diodes in the power supply part, especially connected to PWM chip at primary side of pulse transformer. By the way, what kind of chip is there?

Apr 05, 2009 | Dell E173FP 17" LCD Flat Panel Monitor

1 Answer

Dell 17'' flat panel monitor power light is blinking


some transistors on the board have shorted they supply power to the inverter to run the lamps, they power is not cut off intermittently and the protection circuit has stopped the monitor. the fix is here

http://josepino.com/other_projects/?howto-repair-dell
goo dluck if you want it fixed for you let me know

Mar 22, 2009 | Dell E173FPf 17" TFT LCD Flat Panel...

6 Answers

Dell E172FPb 17" LCD Monitor Problem


Your inverter power supply has gone bad. You will need to replace the whole board or replace the the 2sc5707 transistors in the inverter area. Check out this link for installation videos and how to for that model
http://www.lcdrepair.us/Installation.html
They also sell the whole board as well as repair kits

Oct 27, 2007 | Dell E153FP 15" LCD Monitor

2 Answers

Dell 1703ft (17" UltraSharp LCD) powers on, but no picture


This is most probably cause by one or more Faulty Electrolytic Capacitors, I find these are the MOST commonest form of "Fault" in these LCD's TFT's units. I ususally simply replace "On Spec" all High Value Electros, in fact ALL Electro's are suspect and often I just "Shotgun" and replace 'em all. Usually fixes all problems. Always use High Temperature Caps. Try this and see if it helps. All too often it is these Electro's.. GL.

May 19, 2007 | Dell UltraSharp 1704FPT 17" Flat Panel LCD...

6 Answers

Dell Blinking Power Light


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.

Dec 05, 2006 | Dell E173FP 17" LCD Monitor

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