Top 10 LG 37LC7D 37 in. LCD HDTV Questions & Answers

Try One of your working TVS and connect it to your cable outlet of the TV that is having problems. If that TV Does not work then there may be a degraded fitting or the Leg coming of the splitter to that outlet could have a Low Signal Problem
Next Take the First TV that was not working properly and put it on the cable outlet of one of the TVs that is working properly and if the TV set works on that Channel then you know it is not your TV that it must be the cable

there is a sound or speaker out jack on the back of the tv, this must be sent to a reciever of some sorts. any older home sound system will do. use the audio in jacks or aux. jack and your on your way!!! its not that hard !!! just take your time and it will be so easy!!!!!!

Find someone in an area that the Company will ship to and send them the money to get the replacement board. then give them the shipping address and have them send it to you . I would be willing to help if all it will cost me is the time. You would have to take care of the E-Bay Bill and The shipping costs from my location to yours.

Here's a link to the service manual for a slightly larger LG LCD TV. Perhaps it may be of some help? The troubleshooting section appears to be the same for many models of LG TVs...

http://www.observations.biz/MANUALS/LG_LCDTV/42LF66.pdf

You can't fix it. There is a bad board in this set; either the main board or the power supply board. You'll have to call a professional.

I have had the exact same problem with my 47LG70 after 13 months of use. I changed my remote control sensor but it did not help. Before you do that, try something simple which seems irrelevant. On this website, others have posted success by plugging in any standing set of headphones into the remote control or headphone jack on the rear TV panel. This solved my problem. So I proceeded to thoroughly dust all of the input/output component jacks on the rear and side of the TV with an air-can. This solved my problem and I do not need to have the headphones plugged in. So try these two things before changing the sensor.

The caps (capacitors) in the powerboard are going out. This is a very common problem in all class and price ranges of modern lcd and plasma tv's/ monitor's. I don't know if this problem has been like this for awhile or it just started, but either way, if the tv takes an abnormal amount of time to "warm" up then it most likely will go out all the way sometime in the (near) future. If you have a tiny bit of will and knowledge ypou can open the unit and get to the print board. Examine this for "popped" capacitors, they will have a buldging top instead of a flat one. Im gonna try to include a pic of them here, if i can get it this time, I've tried bfore lol. But you can google image a "popped" or "bad" capacitor and you would be able, with ease, to diagnose if you have any of these. Usually only one or two. Radioshack sells capacitors (couple anyway) for $1.59 each. MAKE SURE the replacement is of the SAME voltage or HIGHER, or you will be right back replacing those 2. Every capacitor has a negative pole marked with an (-) on the side of the capacitor(by one of the "legs", always puit the negative (-) "leg" of the new capacitor in the same hole in the printboard as where the previous negative (-) "leg" of the capacitor was ( a capacitor with the negative and positive "legs" put in backwards will result in the new piece "popping" as sson as you turn it on!!) make sure the "uf" rating (for example the most common popped capacitor is the 1000 uf) is the same as the one you are replacing. I needed 1000 uf, 105 c and 26v (volt) ratings for the 1 capacitor I needed to replace to fix my LG 19" lcd panel monitor I found by the trash that the light came on off, but it didn't come on. I replaced that capacitor with ; 1000uf, 85 c and 36 v (volts0...It works fine eventhough the volts and the temperature rating (36v and 85c) was not the same as the (26v(volt) and 105c ) capacitor I removed !! Further, I've replaced capacitors that had the celcius rating of 105 with the only ones Radioshack had, namely 85 c(celsius) they have been working great, but I'm not sure about any effect, nor have I heard or read (yet?) about that making an urgent difference. Many threads that I've read people have done the same, so we should be ok (my stuff has been running good for a while longer then most brand new ones!.............(all these ratings ; 'uf ' and 'c' etc are on the side of the capacitor you are replacing and on the side of the ones you are replacing them with)...For all this all you need is the cheapest solder gun u can find (I bought one for $7.99 at Radioshack), a camera (to take pictures as you go to remember how to reassemble the unit) and, once you have your materials, 20 minutes to replace 2 or 3 capacitors and you are good to go...Most monitors and tvs (lcd/plasma) I've seen you have to lay flat on the ground/bed/blanket etc, to work on (screen side down). Usually there are 2 or 3 screws (or a few more) to remove, then you will have to carefully (its comes off easily most times)insert a flat screwdriver inbetween the casing and gently pry it up as you go around the whole frame. Sometimes you have to remove the little washer arouind the cable input orso, just be gentle and you cant go wrong. Once insidet here will be a box with wires running to the sides etc...unplug, gently, these wires and open the box. Inside you will find 2 or 3 circuitboards, check them all for "popped" capacitors, replace, reassemble and plug it in....Have fun becoming an overnight tv mechanic lol! If this helped (or not)please rate, thank you!

Ur tuner board is dead.Replaced this board to get picture back.Tries Shopjimmy.com,Ebay.com for the board part.

Any brand of USB Wireless Adapter will work. Netgear, Linksys, etc

I bought one also from ALDI for my son's Xbox 360, it is only 3 weeks in use and I have the same problem. The red led is on, indicating that it is in standby mode and recieving power but I can't turn it on either by pressing the power on button on the TV it's self or the on button on the remote. This started happening a few days ago and it's totally random. I found that if you unplug the TV from the power point or alternatively switch off the power point for a minute, than power it on again it will "WORK AGAIN" for a while. Like I said it is random, eventually it will return to the not being able to be switched on state at which time you will have to repeat the process. So thus, this is not really a solution. I am about to return the TV for a refund, and it's a shame because otherwise it's not too bad. and looks OK too.