Question about LG Studioworks 700S 17" CRT Monitor

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Tic tic problems

I have a lg 700 black monitor, some sound hearing just like tic tic tic i am change a mosfet 10n20c because its very heated (change to irf630) but again moseft is heat and damadge. Please help me the problem shortout.

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Check filtering capacitor of lot+B & replace it

Posted on Jun 01, 2009

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Posted on Jan 02, 2017

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Black when powered on


When it have this kind of error is a problem of the power-board.
Anyway you must open it and look at the all capacitors and if are them inflated, if them are inflated must change them.

But can be a problem with inverters... control the transistors - MOSFET on the powerboard.

Good luck!

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Microtek flatvision display horizontal continuous moving.


that is problem of diode near EHT that diode connected to big heat sink having three leads two series diodes in one diode replace it even meter shows ok .If persists then check mosfet irf 630 and path of its gate touch heat sink if it overheats then yoke is faulty replace it

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Hello.Ihave a princeton vl1919 monitor.The problem is when you press the power button the light comes on for about a few seconds then goes out then you hear a tic tic ticing noise can i try and replace the...


Try looking for bad caps first, see example of failed PRINCETON monitors because of bad caps here: http://s807.photobucket.com/home/budm/allalbums
Post back what you see so we can guide you further.
The ticking sound is from power supply turning on and off.

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3 Answers

Tic tic sound with L.E.D blinking


it can be a broken monitor or a faulty video card. try replacing your video card. hope this helps

Jul 03, 2009 | LG Studioworks 700S 17" CRT Monitor

2 Answers

Black screen on a 20ls7d LCD TV


I work at CNN Have had 6 of these monitors go out in as many months. Take out the power supply and change the 2 exploded 680u capacitors. They're being overheated by the underrated MOSFETs on the reverse side of the board. I'm looking for some substitute MOSFETs that handle power better; but replacing the caps will usually fix the problem. Otherwise replace the supply.

Jun 07, 2009 | LG 20LS7DC 20 in. LCD TV

1 Answer

Tic tic tic sound


Check for other problems. You might need to buy another FET as well. But this time don't put the FET back in until you make sure nothing can blow it.

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1 Answer

Acer CRT Monitor with tic tac sound


1. horizontel transistor bad.

2. dry points on neck board.

3. cheak the power supply out put

4. LOT problem

Oct 13, 2008 | Computers & Internet

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