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

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Ice 2as01 is broken again

The dell 1800fp is no power. I change ICE 2AS01 chip by myself, but, it only take two days, the chip is broken again. I think other part is broken too. but, I don't know which part. How can I test it. Thank you.

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Resolder diodes D903 and D906 in the secondary of power supply. The diodes are the two mounted to a heatsink. These are the reason the 2AS01 goes out in the first place. The solder joints on these two diodes breaks loose. If you don't solder them, the 2AS01 will go out again.

Posted on Aug 13, 2008

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3 Answers

Dell 1800FP


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...

1 Answer

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

Dell 1800FP, no signal found (analog). Green LED on, get message


check if your signal cable is properly connected to your system unit and make sure that non of the pins of your signal cable is broken.if any of the pins are broken,try and change the whole signal cable and re-connect it again
after following the above instruction,reboot your computer
thank you for contacting as with your problems,you are always welcomed

Jan 26, 2009 | Dell UltraSharp 1800FP 18.1" LCD Flat...

2 Answers

Monitor is dead


I have made a solution for this for you which can be found on my website here:
http://www.dorchestercomputerrepairs.com/1800.html

Hop this gets you going again.

Sparkyuiop

Sep 01, 2008 | Dell UltraSharp 1800FP 18.1" LCD Flat...

1 Answer

My dell ultrasharp 1800fp monitor keeps flashing on and off, its not a power problem as the power button stays on and when i disconnect the the monitor cable from my pc the no signal message stays on the...


Inside there is a IC chip on the power pack that goes bad, replacement is called for also look for bad capacitors when you are inside looking around, those need to be replaced as well
hope this clears things up. dells third party who built these units did a rotten job on this model. that chip always fails.

Aug 19, 2008 | Dell UltraSharp 1800FP 18.1" LCD Flat...

1 Answer

1800FP ICE chip


The ICE chip is not so easy to get. Your best bet is to use the ebay source. cheap quick and easy. It would need to be an electronics wholesaler, a trade type distributor to get that part. Most would not stock it.

Jul 06, 2008 | Dell UltraSharp 1800FP 18.1" LCD Flat...

1 Answer

1800FP monitor ICE chip


you NEED the EXACT ICE CHIP, not just any old chip. They make millions of IC'S, you can get a reman power supply on ebay for cheap from ressurectek, tell him jimmyvisthekey sent you. Later.

Jul 06, 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...

6 Answers

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


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

May 21, 2007 | Dell UltraSharp 1800FP 18.1" LCD Flat...

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