I have a dell monitor e172fpb. When it is plugged in and not connected to the desk top. The green power light flashes on and off repeatively and the screen flashes not bright but dim on and off two. I need help what is the problem. Thanks..

dbeukeboom, Unit is OLD!!! Trade for new or try to refurbish(repair) the internal power supply(visit YOUTUBE for video clips) !!! The lcd panel is ok, it's the electronics that's bad!! After you do the YOUTUBE thing, then come back to fixya and read the fixya profiles of "budmrtn" "buddymc" "12fixlouie" and all the other tech's that already know what you should know. 12fixlouie

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

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.

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

There are two possibilities, one is bad caps in the power supply, number two is shorted out transistors (P/N c5706/5707) in the inverter circuits. Please open it up and report back what you see so we can guide you further, see example fo failed monitors due to bad caps, lamps, etc: http://s807.photobucket.com/home/budm/allalbums

phil_bischof, Not many sub's for it!! Because the package not standard "TO220AB" It is TO220FP package device. You can try www.digikey.com for this part number: MBRF20200CTGOS-ND and ask them if you really need to buy 10 of them for $27.88 or will they sell you only 1 for $2.80 + shipping? Have you determined cause of rectifier failure? Good luck, guy. 12fixlouie

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

bad capacitors inside the monitor they need to be replaced, or if the power light is blinking then there are transistors that need replacement

Hello,

Your backlight inverter inside the monitor is out. If you are comfortable soldering you can repair it yourself. We have a step by step repair guide on our web site at: www.ccl-la.com/LCDrepair5.htm

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

Buddy
Corporate Computer

REPLACE 2SC5707 IN POWER INVERTER BOARD.
This parts is used to fix Some dell and hp lcd monitor.
DELL E172FPb, E173FPb. HP Pavilion F1703, Pavilion F1503. If you can't get this item to work let me know, I can help I have fixed a lot of these monitor with no problem.