20 Most Recent LG Studioworks 700S 17" CRT Monitor - Page 2 Questions & Answers

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This is a fault solution which can be checked and corrected by you assuming that there is no component failure. There is a high possibility that the components over a period of heating and cooling, tend to bring on a problem of dry soldering. So my advice is to check the set for some loose joints that have played on to give you these erratic shut downs or poor performance.The fault seems to be with teh VERTICAL DRIVE SECTION, possible that the vertical IC is having DRY SOLDERING.

The best way to check for loose connections is to tap lightly when the set is powered on , If there is change while tapping then it seems that there are DRY solder joints. Remove main plug, the covers - with caution of high voltage, check for dry joints, use a good soldering iron to solder all suspected points.

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Most problems in the crt monitor are caused by a bad flyback transformer. It is far cheaper to replace the monitor with a new one.

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I think that two capacitors in the powers supply circuitry(incise the monitor) has gone bad. Just open and you'll see them.
This should solve your problem.Best of Luck.Please rank me appropriately. If you want any clarification, Please get back to me

lg monitor sound ngeret,, ga power lights the flame ...... y KNP .... Boss??? please solution

Unlock the base first. Keep the monitor upside down on a soft flannel or any thing like that. there is tow clip locks on the top portion of the cabinet. Unlock it very carefully, after unscrew out the two screws at its botton side. Pull the back cover causiously.

HelloCheck the DC voltage in to LOT. If not power supply section should be troubleshooted. If there is voltage and still no EHT, LOT should be suspected.

Suspect the LOT

HelloThe problem is with some loose solder points inside the circuit board of the set. Just resolder all the suspected solder points by applying a little more solder, without making any solder bridge short in between adjecent solder points. Note the solder points of components, that will heat up while working. Resolder these solder points as I stated earlier.

HelloThe display processor IC [ on the neck card ] has damaged. Replace it with same number.

HelloSelect reset option by monitor menu, set it to default first. Then try to adjust the width and height of the screen. If this does not help you, try other resolutions set by the system.

HelloIf the monitor displays these vertical bars, after a service has been done to it, and if LOT has replaced, there is a mismatching problem with replaced LOT and the defelction yoke.

There is some short circuit on the circuit baord. Check it. Horizontal output transistor and LOT should be suspected.

replace flyback transformer ... 100% guarantee again your monitor works normally to adjust knobs of new flyback click this link http://www.fixya.com/support/t10292274-39_m_trying_fix_21_inch_jvc_tv_its