Question about LG Flatron L1710S 17" LCD Monitor

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Inverter problem , prefer to repair the board not buy new parts

Can yuo give repair information or testing of the inverter so i can repair it , as part are not easy to comby here in perth australia

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Repairing lcd inverter is like repairing a hv circuit used for strobe lights. try to check first all electrolytic capacitors, then loose board solder, also occularly check both ccfl bulbs for breakage and burnt marks.. best is if you can download schematic diagram for it so that you may check also all semiconductors on the board.

Posted on Jun 01, 2008

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Posted on Jan 02, 2017

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Backlight inverter board for LG TV What is correct part to restore illumination to TV


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Jan 27, 2016 | LG Televison & Video

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WHIRLPOOL MICROWAVE GIVING F-7 CODE


hello sir 

you are right magnetron is fully interrupted....... but tell me  !. do you want to repair machine( 4 sec problem) 2. do you want to buy inverter , magnetron  please tell i am ready to help you sir


I believe that is a microcomputer board failure. You will have to replace this board. Website below.

I have gotten parts from "repairclinic" on line and they worked fine. I saved $600 on the last repair of an oven. Good luck.






or sir you can find and fix each and every type of code error


http://www.applianceaid.com/micro_faultcodes.html#WLP

Oct 18, 2008 | Whirlpool MH6140XK Microwave Oven

1 Answer

Why does it have sound but no picture?


Check and replace damaged component/s at its back-light inverter board, or replace this board as card basis. If you wish to get some details; check the site linked here. Surf the site with patience. Pull up older posts. It will be best to replace the inverter board as card basis.
http://electronicshelponline.blogspot.com/
To some model sets; especially LED back-lighted types; the back-light inverter circuit will be part of the main power supply board [SMPS]. In such cases, the power supply board might need replacement.

Nov 10, 2015 | LG Televison & Video

1 Answer

Philips 32pf9641d/10 fault works well for 90 mins then goes black still images on screen but no backlight ? power supply or inverters? if inverters can they be repaired or replacement only,


Hi.

As you said when there is no backlight the problem is either inverter or power board. In some case the main controller board may be responsible.
You need to test the parts to find out what part is responsible. Testing is done tracking voltage from PSU to inverter. Voltage to inverter is usually supplied by the higher VDC line from PSU. Here broad description of how to test the three parts: Before proceeding...
The TV can be repaired at component level or replacing boards, depending on your skills and experience. If you want to repair at component level, after diagnosing the faulty board you test components and circuits individually. In that case to test inverter in full you will need an oscilloscope to read the phase of inverter AC section (oscillators or IC must be tested).

Note: If Inverter has voltage out to CCF lamps, then the parts mentioned above are OK, in that case you have a faulty LCD panel. The TV is usually not worth repair as the LCD panel is expensive. LCD panel faults are not common.

Here replacement parts for most flat panel TV models:ShopJimmy.

See also:
PartStore

Regards.

Ginko.

Sep 20, 2011 | Televison & Video

1 Answer

JVC TV, LT-26C31BJE Sound but no picture. Is it likely to be a low cost repair, or buy a new tv time?


Hi cross_keys,
Before thinking of a new set, try this first.

You may power on the unit in the dark room and directly shine the flashlight to the LCD monitor. You will barely see an image or picture because the fault is either the inverter board or the lamp (backlight). You may isolate the problem but it will require you some tools and test instruments. Also, you must know some basic safety precaution in electronics troubleshooting.

Best way to find the faulty parts between the two you need to test the output of the inverter board. You can do it using the voltmeter or if does not available you may substitute a two 12v car bulb in series to the output of the inverter board. Powering on the unit and look if the bulb will glow or not. Yes, your lamp was busted. No, the inverter board fail.

You may look online for the replacement of defective parts. http://shop.ebay.com/i.html?_nkw=LT-26C31BJE&_sacat=0&_odkw=42RV600E&_osacat=0&_trksid=p3286.c0.m270.l1313

Hope I helped you.

Have a nice day!

Thanks for using Fixya.

Mar 02, 2011 | JVC Televison & Video

2 Answers

Bad inverter


Inverter Board? You can try shop that repair electrical things or the TV shop...

May 14, 2010 | KDS K-24mdwb LCD Monitor

2 Answers

I have a Fujitsu Siemens Lifebook s7020 with no backlight. The display is showing everything but it's hard to see because there's no backlight. Everything is also fine with an external screen. I have a...


The Inverter board must be tested and eventually replaced. The inverter is the small board located at the base of display. This is connected to one side to the backlight lamp, to which supplies AC high voltage, and on the other side to motherboard, where receives DC voltage.

Inverter contacts to otherboard and to lamp must be tested , using a multimeter to read volts. The inverter is an AC board, and for safety reason the test must be done by a trained repairer.
If the inverter is OK check the contacts to motherboard and wiring harness to motherboard..

Also ensure that light is not just dimmer because energy save mode is on, or because the laptop is running on batteries.

Sep 07, 2009 | Fujitsu Siemens LifeBook S7020 Notebook

1 Answer

F9 error


Your Microwave uses "UltraWave technology"
I'll explain a few things about this wonderful technology...
The control board (accepts the pushbutton commands) has to talk to the inverter board to tell it how much power should be applied to the magnetron. The inverter board will then power the magnetron and inform the control board if the magnetron is working OK.
If there is something wrong with the magnetron or inverter board or a there is a communication breakdown between the control board and the inverter board...WA-LA-----F9----

A pretty reliable test for the Magnetron is to operate the oven and listen for a ticking sound 5-6 times about a second apart. If you can hear the ticking....The magnetron has failed..if no ticking, the control or inverter board failed.

The Magnetron sells for about $78.00 and is simple to replace. Check your owners manual for limited warranty on the MAG and electronic parts.

Jun 10, 2008 | Kenmore 62622 Microwave Oven

2 Answers

Replacing Inverter Board


I did some poking around and only found a few places that sold inverter boards for this monitor. Ebay has one that sells for about $80: http://cgi.ebay.com/Backlight-Inverter-for-Gateway-FPD1930-LCD-Monitor_W0QQitemZ160070918225QQcategoryZ174QQrdZ1QQssPageNameZWINQ3aPOST0Q3aRECOQ3aBINQQcmdZViewItem I wasn't able to find any specific instructions posted, however, taking a typical LCD panel apart and replacing the board shouldn't be too difficult. The only hard part is not getting shocked, which is why this is not a job for the typical user. Anyway to disassemble the typical LCD you remove the pedestal from the back of the LCD then remove the screws around the back of the LCD, remove the back and look for the inverter board. Typically it is covered with a metal shield; again the hard part is knowing how to correctly handle the parts. Considering you can buy a new 17" LCD for $120 to $150 (and has a 1 year warranty) you might want to consider investing in a new monitor instead. If you have any other questions let us know, otherwise please don?t forget to rate this posting.

Feb 03, 2007 | Gateway FPD1760 17" LCD Monitor

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