Question about LG L1930B 19" LCD Monitor

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I want to bye its LCD main board because have some red saddow.

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Look on ebay for the main board will be chaeper than trying to get a new one from LG

Posted on Dec 10, 2009


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Don't know much about TV,s but I would look for a reset. Either electronic option in the settings or perhaps a manual one on the TV to return the TV to its original factory software.

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On power boards if its overheating could be dry joints, look at solder joints for cracks round the joint or darker places on board.

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TV blinks red 3 times and does not come on

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Error / Audio Error in this case main board defective please replace the main board

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How di I fix the audio on my coby tv? I can hear a scratching sound only. I was able to connect to netflix via my ps3 and the audio worked. Is this something you can assist with

Unfortunately the failure to mention needs repair by a qualified technician. The solution that is easily accessible by changing the main board , but are now discontinued . I hope I have been helpful . Bye Bye

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The problem is the main board.

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I have power and stand bye light is on but tv will not turn on

Short circuit protection circuit inside the TV, activates. It finds some short circuit in the circuit board. Usually, it might be to its main board. Troubleshooting to this kind of fault is really a skilled one. Will be best to contact any service technician. If you wish to get some details, check the site linked here. Pull up older posts. Check the site in 'Mosaic' view. It will make search easy.

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1 Answer

Red light blinking

blinking of red light indicates that fault in main board or related boards. you need to open back cover remove each cable connected with main board one by one & put on tv after each cable is disconnected. if red light stops blinking on disconnecting any of the cables, that means related board is defective, if it does not stops blinking, check the power supply is generating proper voltages. if it is ok that means the main board is defective.

Sep 26, 2011 | Panasonic TC-32LX24 32 in. LCD TV

1 Answer

Red color problem

Could be a bad main board or a bad LCD panel.

Make sure your cable is not causing it by wiggling it at each end.

Check that none of the capacitors on the main board or power board are bad.

Call Viewsonic and find your closest service provider. Have them check on the price of the main board. If it's under $50 it might be worth buying to see if it fixes the ptoblem.

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