LG 37LG30 37 in. LCD HDTV - Page 5 - Answered Questions & Fixed issues
My LG 37" will run fine from a half to a couple
The power supply board is dying about to be dead,not giving the right voltage to the other boards on the tv anymore.That the board,where the power a/c cord plug into it.Tries websites like Shopjimmmy.com,Ebay.com to buy a refurbish power supply board for the replacement.
Remote not control TV.Remote light on when
Hello,
Common faults are: some buttons not working, not working at all, corroded battery terminals. Often buttons are sticky because of some dirt accumulated over the years from the sticky little hands of your kids?
The hardest part of repair is often to open the covers. You do not need much experience in electronics repair to repair a remote. Also it is perfectly safe as there is no way to get an electric shock as they work with batteries.
step 1Test your remote with Digital Camera
Check your batteries first or buy new batteries. Once you have good batteries, you can test with a digital camera by pushing the buttons and having camera on and pointing to the infrared led. You should see red light if the remote is working. If no light comes up you obviously have a dead remote but do not despair and procede to the next step
step 2Open the remote control but there is a catch or a few catches.
Remove the screws if any. Sometimes screws may be hidden under a sticker or rubber feet. Often there are no screws at all but just plastic catches hidden so you have to be clever to open it without breaking the case. Use something blunt and flat toclick the covers open. This is often a challenge but should not be too difficult.
step 3Take a picture of every phase so you remember how to re-assemble
Since you are using a digital camera you might as well take pictures of the disassembly so re-assemly will be easier.
step 4Pull everything apart
Did you take a picture of the keyppad layout? Sometimes keypad is just one rubber membrane but sometimes the keys fall away like pieces of a Lego puzzle. And if the buttons are marked with numbers and functions you may struggle to re-assemble them in right order? Use a small plastic takeaway box or similar to store the bits so you don't lose parts.
step 5Inspect the circuit board and repair dry joints
Remotes are often dropped on the floor and may develope dry joints on the battery contacts or circuit board. Inspect the contacts and circuit board under good light with a magnifying lense or if lucky you might have a microscope or just a very good eyesight? Solder all suspicious joints. If there is a sign of water damage you can use methylated spirits and toothbrush to…
step 6Wash the covers and the buttons
Use a smal bowl or similar to wash and contain all the parts so you don't lose bits down the drain. Use old toothbrush to clean all button holes and buttons. Warm water with dishwash liquid does the job. Take particular care with those small buttons and clean them properly. If you can leave the bits to soak overnight they come clean easy. Ultrasonic cleaner would be goo…
step 7Rinse, drain and dry the parts
Rinse with warm water. Use a drainer to contain all the parts without losing small bits down the drain. As extra security use sink plug. Dry with a paper towel. Wipe the buttons dry individually as they may still have some dirt which makes them sticky when in use.
step 8Repair case and re-assemble
If there is damage to the case or buttons you need to do the required repairs. Use hot glue or super glue depending on fault. Let dry overnight if you had to glue something. Re-assemble bits in reverse order and make sure you have the buttons in right place and right way around. Small nicks and dents on plastic cover can often be repaired by heating carefully with a h…
step 9Test with Digital Camera
Test every button as before. Sometimes you have to push two remote buttons simultaneously as with recording buttons on my Panasonic VCR. Once you have completed test with your camera you can use the remote.
That's it, I hope you got it going again...
My 32LG70 won't turn on and the screen remains blank.
Try resoldering everything back onto the power board.They become brittle sometimes.
That doesn't do it then buy a cheap cap meter off ebay for around a tenner and firstly pull off every single electrolytic then ceramic capacitor and test.
Very easy to test,look on YouTube for videos.
Replace faulty&marginal caps and your problem should be gone.Remember m8,take your time,don't rush these things.
Runs for 10 minutes and goes off the display. What
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Go into your “Time” menu in the TV and make sure noting is turned on to automatically turn off the TV.
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Make sure the TV’s power cord is installed correctly into the back of the TV and into the wall outlet.
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Sometimes using a different remote to channels on the cable/satellite box can cause the TV to power off. This was common with the Motorola boxes because some of their remote codes were similar to LG power off code. This issue was resolved by a firmware update on the TV.
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When you power the TV back on and the Channels are erased, then the problem is due to a bad main board and need to be replaced.
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Other than that, it could be the power supply and or the main board power off the TV. The only way to tell with a LG service remote and some TV repair tools.
I hope this information has helped you.
Good Luck.
Remote doesn't work.
Hi,
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Try the following: use an air-can and dust the multiple component input/output
slots everywhere on the TV itself. If this doesn't solve the problem, connect
standard 1/8" headphones into the remote control OR the headphones jack on
the TV. Then unplug the TV for a minute. Plug it back in, turn it on, and see
what happens. Hope this helps,...it may not seem relevant, but it works for
some reason.
Good luck...
HMDI Conection
HDMI port on TV could have bad connections....happens sometimes when plugging and unplugging cable...machine soldered....bad weld!!!
What is the best Calibration Settings for the LG
If you have a Blu-Ray player, you can use a number of Blu-Ray discs (Spiderman 3, Terminator 2: Skynet Edition, Monsters Inc; for example) that have "optimizers" on them to help you adjust your settings. Some DVDs do as well, though not quite as in-depth. That's a start. There are other calibration discs (specifically) that are available for purchase as well. Basically, it all boils down to personal taste. Remember that contrast is the 'white level' and brightness is 'black level'. Choose the settings that look best to YOU, as you are the one that will be viewing it. However, the discs will help you distinguish the differences between too much/too little contrast, color, brightness, sharpness; as it's not always easy to figure out on your own. They usually also tell you what to look for as you make your adjustments. Good luck!
How do i adjust the vertical hold on my lg tv
LG does not have an adjustable setting for the vertical hold. You would need an Engineering Remote to get into the software setting on the main board. Howerver, you would have to work for LG to get your hands on that remote.
Your issue my be caused by a bad main board or with a bad input signal to the TV.
Lcd tv won't turn on
first check outlet power then check power cable if both ok then it may power supply board.
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