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Model 50-306c my inverter turns on but doesn't put out 110 power. what should i check ? where can i get a repair manual. thank don

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6ya6ya
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Posted on Jan 02, 2017

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cmcduncand
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SOURCE: My inverter is in alarm and won't produce 110

I have had this happen a few times.

Sadly replacement is the Best option.
Repairs can be %75 the cost of a new one.

The best invert we have been using is a Pure Sine 1500 watt inverter.

Sad news but hope this tip helps.

R/
David

Posted on Jan 30, 2010

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The fact that the light appears on the screen shows the fact that the power source and the inverter are functioning - the failure is located in the mainboard. Because the status light doesn't changes color it means that the processor of the monitor is no longer loading the firmware - the damage is too great to be repaired. The board will have to be replaced and that will be expensive: $110 for a new board + the shipping to your location. If you don't have at least a basic experience in repairing electronics a visit to repair shop will cost you another $100.
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I I HAVE A philips 42pf5320/10 IT TURNS ON GREEN LIGHT IS ON BUT THERE IS NO BACK LIGHT, NO ONSCREEN DISPLAY, NO PICTURE.


Hi.

If your TV is LCD this are the procedure/steps to fix your problem.

Half picture on top of the screen, and the bottom half is black it means the back-light of your TV on the bottom is not working.


This are the step on how to find the trouble of your TV:

First, you have to remove the back cover of your TV to see the internal parts inside.

Secondly,after you open the back cover and the internal parts will reveal.Try to find where is the power supply board.It is usually connected to the power cord and it have a AC input that connects directly in you outlet.
It look like this:
nineng_4.jpg
This image is not exactly looks like your power supply because you don't indicate the brand name and model # of your TV.

Thirdly,plug-in the power cord then power it ON and be careful,check the output voltage of the power supply using a multimeter (range in DC) ,if it is have a 24vdc for the supply of inverter board.It is the board that gives a high voltage to the back-light of LCD TV.

Fourthly,if the power supply got the reading of 24vdc it means the power supply is good.Then try to check the input voltage of the inverter if it is have 24vdc.

The inverter looks like this:
nineng_5.jpg
This image is not exactly looks like your inverter board because you don't indicate the brand name and model # of your TV.

Fifthly, if the inverter have a input voltage please check the output voltage of it.It should have 500vdc so be careful to perform the voltage data in that point because it has a high voltage or hot area.

NOTE: if you don't have voltage reading on the input of the inverter board (24vdc) and the power supply an output of 24vdc,please check the wire that connect to each other.

Sixthly, If the inverter board have a reading of 500vdc on all outputs connectors (it is usually have 4 to 6 outputs).Your back-light lamp at the bottom are busted replaced it.
Or if your inverter board doesn't have a output voltage replace it.

You can buy the parts here:
Just click this direct link. http://www.electronica-usa.com/Merchant2/merchant.mvc?Screen=SFNT&Store_Code=EU

Or here:http://www.shopjimmy.com/

And also to eBay.com at your search engine.

Reminders:
If you don't have any basic knowledge about the electronics and testing equipment please don't attempt to do this steps.Its better to send it to the qualified technician or on the authorized service center of your TV.

If this solution will help you to fix your problem,please don't forget to vote and rate my answer.Thank you and good luck

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1 Answer

Hitachi L26D103. Less than 2 years old. Working fine one day. Turned on the next day and the sound works, but not the picture. This is an issue when in both the TV and DVD modes.


Good day!

If your TV doesn't have a picture even you play a DVD it means there is problem to your TV.It could be the Inverter board or the cold cathode lights is busted.


This are the steps on how to fix that problem.
  1. Remove the back cover of your TV.
  2. After that,plug in the TV and power it ON to perform a voltage data.
  3. Check the the output voltage of your power supply by using multimeter tester (range in DC) then check the 24vdc(supply of inverter board).
  4. If you have 24vdc in power supply output,check also the input voltage of inverter board if have 24vdc.If doesn't check the wire connection from power supply to the inverter board.
  5. If have you input voltage of inverter then check the high voltage output of it,if have at least 500vdc so be careful to check it because it have a high voltage.
  6. If doesn't have high voltage output replace the inverter board and if have a output voltage the cold cathode lamp inside is busted so you have to replace it
The inverter board looks like this:
bugoy31_2.jpg


You can buy it to this link: http://www.shopjimmy.com/catalogsearch/result/?q=Hitachi+L26D103+inverter+board

If this solution will be helpful please rate my answer. Thank you and good luck.

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