Question about Dell UltraSharp 1800FP 18.1" LCD Flat Panel Monitor

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Dell 1800FP Dark, No Power but power supply seems fine. Help!

My LCD monitor Dell 1800FP shows no lights when powered on, and seems completely dead. I read some posts on the web, opened it up and measured voltages at the power supply output pins. Both 5V and 12V measure fine. Any suggestion on what else I should try? Thanks! RJMPLS

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  • kiniole Aug 29, 2008

    the monitor was working with no problem at all. it won't switch on. the pin ligh beside the on/off button does not light up. it seems that the switch is broken. the monitor did not manifest any pending problem before. i've tried using another power cable. please advise, thanks

    808 395-2162 or email kiniole@gmail.com

  • rlf221 Apr 03, 2009

    Replaced the power supply, and still no life from the monitor. What is next to replace and is this monitor really worth saving?

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I just repaired 3 1800FP's - all dead, no lights.
Firstly a dead 2AS01 is 95% of the problem, because some fool designer left out the protective zener diode - cheapness.
Mouser Electronics does not have this part, but lists it at 37 cents in lots of 2500, and gettable at $2.66 somewhere else.
You must also replace the two small value electrolytics near this IC, as some had an ESR of 40 where <0.5 is where it should be.
I suppose as the electro's dry out, the spikes can zap the IC. The quacks on ebay flogging 2sa01's alone, probably hope to sell you another one down the track (at a fat markup).

There are 2 'Sam Young 2200uf' electros that really should be replaced, with ESR or 2-30 ! Ideally replace ALL electros, as the others will be off - but those 4 as a minimum and using a jewelers loupe, resolder other joints on the transformer and anything that looks more dull silverish, than the rest. A 1 inch used and worn paint scraper will get the case open easy.

DANGER, CAUTION : Finally when refitting the inverter board, ensure the steel tab is over the TOP middle of the board facing away from the power socket (SO YOU CAN SEE IT) . The board sides in flat. It is possible to scew the board down with a slight bend, with the tab pressing over the pcb tracks - very , very bad!

Now all I need is for some kind soul to improve the fix by stating what the value of the missing zener should be.

PS. Just because the caps are not bulging does not mean they should be OK. Most wrecked 10 year old power supplies have better ESR's, so the electronics must be hot under the cover.
I have seen bulging caps with a GOOD ESR, and non bulging ones with an ESR of 47.

Canberra

Posted on Aug 28, 2008

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I purchased the ICE2AS01 8-pin DIP chip from ebay and resoldered the TO-220 diodes that are attached to heatsinks. Everything works fine now. http://thriftyvegan.com/1800fp/repairinfo.html I purchased 3 chips just to have some on hand as they are discontinued. Paid around $20 total. Thank you Alex Belenkiy

Posted on Aug 20, 2007

  • Alex Belenkiy Aug 20, 2007

    the above link was from the guy i purchased the item from on Ebay. Here is his store:
    http://search.ebay.com/_W0QQsassZtomezak...

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Hi, simply replacing the ICE2AS01 and resoldering diode packs is not really good enough, it will work, but will fail again. Failure is, the solder connections stress/fracture and causes the ICE2AS01 chip to burn up. Most people that sell you the ICE2AS01 replacement chip do not give all the instructions you need, and do nothing to address the reason why the solder connections fail in the first place. Failure to properly fix it may cause catastrophic failure of your main logic board the next time it fails. For more information on this chip availability, please see our web site, www.resurrectek.com We sell chips and power supplies. Also. checking the power supply with a meter will not likely show if it is really good or bad, if the solder connections are cracked, it needs refurbished no matter what the output reading are. Regards, Mike

Posted on Feb 26, 2008

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Thanks to all you help guys,this realy worked

Posted on Feb 23, 2008

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Help mi ZD901-R928-R924-ICE2ASO1-11NM60- SVEMIJE CRKLO NABAVIOSAM IC TRANZISTOR AL DIODA IOTPORNICI SU MI PROBLEM NAJVECI DIODA ZD901 NEZNAM KOJAJE UBACIOSAM ZENERICU 7VOLTI AL NEMAM NORMALAN RAD KOLO OSCILUJE SVESAM PROVERIO kenanh@verat.net SERBIA MONTENEGRO TENKSS

Posted on Nov 12, 2007

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I have had the exact same problem. I was told by a guy on ebay to check the smartboard main micro. I think that I will be replacing the smartboard for $35 on ebay.

Posted on Jul 12, 2007

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1 Answer

I get no power - no LED lights up - does that mean a bad power supply?? I saw a message board with all kinds of comments but all from 2005


Yeah it seems that there is not power. Try plugging the monitor to a different power source and check whether it works. If not then it could be the power supply of the monitor which is faulty.

Nov 03, 2009 | Dell UltraSharp 1800FP 18.1" LCD Flat...

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My Dell 1800FP monitor went black


Confirm your cables did not work themselves loose. Try using a different power cable to confirm that it was not the cable. Finally try a lamp in the socket you are using for the monitor power cable, if you are not using a power bar but even then just to rule that out. If the only thing left is that your monitor is dead, you will need to recycle that one and purchase yourself another one. Sorry

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change the power cable then check, if the problem persists take it to the service technician the fault may be in the power supply

Jun 14, 2009 | Dell UltraSharp 1800FP 18.1" LCD Flat...

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1800FP green LED is on, screen is black


power pack has issues could be a chip on the power pack or some capacitors on the power pack. the power pack supplies power to the inverter.


Feb 20, 2009 | Dell UltraSharp 1800FP 18.1" LCD Flat...

1 Answer

I have a Dell 1800FP monitor. I get no power lights at all


Hi,
finding the fault in power supply is bit difficult , as it either works or goes bad . You can check this website for reworked power
supplies.
http://resurrectek.com/osCommerce/

Thanks
proton

Jan 29, 2009 | Dell UltraSharp 1800FP 18.1" LCD Flat...

1 Answer

Dell 1800fp monitor problem


check the main board from which your monitor gets its main power from to see if it is working or supplying the required power needed by your monitor to work.
if it is not working or supplying the required power,get a new one and try again.
after this procedure and your problem still continues,if you can afford,i will advise you to get a new monitor rather than repairing the old one since the old one if not properly repaired will give you more problems in the near future which will cost money you to repair
thank you for contacting us with your problems you are always welcomed

Jan 01, 2009 | Dell UltraSharp 1800FP 18.1" LCD Flat...

2 Answers

Dell 1800FP - no power


Hi pcpiuk

If you have a multimeter, and want to get into the electronics of it all, you could rip the covers off and sus it out. Here is a pictorial guide on whats in it. You need to check the power supply for operation. If it appears to be producing voltage(they usually do or they dont) then it will be ok. The common cause of failure in the power supply is the regulator IC ICE2AS01 an 8-pin DIP chip, and resolder the entire PC. Around power devices I use solder with 2% silver content as it creates much tougher solder joint. If the power supply checks ok, then the inverter is the next spot to check. Just replace it if it appears to be the problem. You can get spares to rebuild the power supply and even new boards from ebay or Dell direct.
If you have any trouble getting parts, comment back to me here.
I am more than happy to answer any other questions you may have about it, please get back to me here, or use the ASK function to go straight to me :) If you are still unsure, have problems, or we need to look at the situation more deeply, then before you give a rating for this advice, hit the ASK button Thanks for using FixYa, If you consider the advice I have given you as sound, a FixYa rating is a great reward for my efforts to help you. Cheers.

regards
robotek

Jun 26, 2008 | Dell UltraSharp 1800FP 18.1" LCD Flat...

1 Answer

Dell UltraSharp 1800FP, green power light, black screen....


Its probably the inverter that lights up the screen that went bad.I have replaced inverter before with much sucess. If you feel comfortable opening the unit up I found one on ebay. Here is the link.

http://cgi.ebay.com/1800FP-LM181E06-FPD1830-18-LCD-Inverter-KUBNKM045A_W0QQitemZ300179625342QQihZ020QQcategoryZ74936QQssPageNameZWDVWQQrdZ1QQcmdZViewItem

Dec 09, 2007 | Dell UltraSharp 1800FP 18.1" LCD Flat...

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