20 Most Recent LG 37LG30 37 in. LCD HDTV - Page 5 Questions & Answers


Tries tv unplug,replug it back like about an hour later.By letting tv resetting itself.Tv should be working again.If still have the same problems.The power supply board is the causes and problems.That the board,where the power a/c cord plug into it.Tries websites like Shopjimmy.com,Ebay.com to buy a refurbish power supply board for the replacement.

LG 37LG30 37 in.... | Answered on Feb 17, 2011


Take it back to the shop for a replacement.

LG 37LG30 37 in.... | Answered on Feb 15, 2011


Change the inverter or de darfo block on the inverter.

LG 37LG30 37 in.... | Answered on Feb 08, 2011


Hello there,

This is a common problem but it is not usually a fault with any of your equipment. It is more of a "Battle Royale" between aspect ratio and resolution settings.

If you are unable to get the picture size correct using the aspect ratio settings on the TV, it is usually because the aspect ratio or resolution of an external input is set incorrectly. Similarly it may be that the settings on the TV and the external input are not in harmony with each other. The settings need to match or you can get some very strange results in terms of picture size.

The external input might be a cable/satellite receiver or a digital tuner/converter.

If you have one of these external inputs connected, set your TV to FULL / 16:9 and then go through the various aspect ratio settings on the external input one at a time and note the results. When doing so, switch the TV to either a sports channel where you can see the scores are partly cut-off or a news channel where the ticker is disappearing off the bottom of the screen. It may not be obvious on other channels when you have selected the correct setting.

If you need further assistance, please reply to me from within this page with details of the brand and model number of any external input device you are using and the type of cable you are using to connect it to the TV. The cable can have some bearing on which settings are correct, particularly when HD is involved.

I will then be able to tell you the exact settings for your TV and any external input when they are used in conjunction with each other.

Hope this helps.

Regards,
BElectric

LG 37LG30 37 in.... | Answered on Jan 29, 2011


Not so sure but looks like is seted up on HDMI input. So when you start it is trying to find and decode the signal but probably there isn't one. So try to switch it on another imput like TV or AV. Is there a death screen also, like no light no anything?

LG 37LG30 37 in.... | Answered on Jan 29, 2011


Hello,

I hope I can help you with your issue,


Either the power supply has an issue , or you have a bad buffer board and Ysus scan board or both.red light indicating may mean power supply , 7 blinks the buffers and y board.
A repairman will usually just order the boards and you will spend about $550-$600 on the power supply or over $700 probably around $850 if its the Y board and buffers.


It could be just a few bad capacitors on the Power Supply, there could be a bad capacitor on the Y board if its bad it needs to be replaced with the buffers together
If you want to attempt the repair yourself you can do a visual of the power board caps will appear swollen on top.
The ones you are looking for are located almost center bottom of the power board,Usually I can see them clearly with the back on simply shining a light into the back through the holes


With the back removed you will see a few circuit boards the upper one (ac cord runs to it through a small board) is the power supply, it has a lot of capacitors on it (cylindrical standing straight up soldered in and marked on the sides with the positive/negative sides and uf and Volts values)
Philips uses 2200uf or 3300uf at 35Volts rating capacitors, they cost about 1dollar-2dollar each

The power board and back unscrew with a torx bit and screwdriver size 10 and 15 , if you do not know how to desolder and resolder then do not attempt this as you may damage the TV more than fix it.
We do not recommend do it yourself, but depending on your knowledge and technical ability you may be able to.
You can replace the whole power supply,

Hope this help in solving the problem.....

LG 37LG30 37 in.... | Answered on Jan 18, 2011


On all modes? Did you try leaving it unplugged for about an hour to let it reset itself. Also try using the on screen setup to reset to factory default.
You can also try this:
Let verify first to narrow down to where the problem can be, attach the powered PC speakers to the Audio Line out RCA jacks to see if you can get the sound there, if you do, then the problem can be in the power amp circuits, if you do not get the sound at RCA jacks, then the problem can be in the sound processor circuit. Please post back what you find. You may be better off if the sound does work through the PC speakers, to get the TV repaired; it will be more than $100 and up.
Basic troubleshooting guide here:
http://www.fixya.com/support/r5093881-lcd_flat_panel_tv_troubleshooting_guide
http://www.fixya.com/support/r6150077-basic_lcd_monitors_troubleshooting
http://www.fixya.com/support/r7406380-tv_training_manuals
Failed TV and Monitors: http://s807.photobucket.com/albums/yy352/budm/
Learn about bad caps: http://en.wikipedia.org/wiki/Capacitor_plague
Parts: www.shopjimmy.com
Capacitors kit: http://lcdalternatives.auctivacommerce.com/Default.aspx he can make you a set of caps.
Or www.digikey.com just make sure to use caps with low ESR, 105c, high ripple current, long life rating such as PANASONIC FM or FC series.
Please leave rating if it helps.

LG 37LG30 37 in.... | Answered on Jan 17, 2011


The TV has two power status functions on the same button. First power on the Tv by pressing firmly on the power button displays a ready to use functionality where the TV may not necessarity display any thing on the screen just yet. Second, using the remote control by pressing on the power should display the ready signal screen like before. However, ascertain that the power cables connecting the TV to source of curent is not been disconnected along the entire circuitary. Check on the power outltet sources on the one aspect, and the connection side of the TV. Thereafter, the TV should be ready to be powered on by pressing.

LG 37LG30 37 in.... | Answered on Jan 17, 2011


maybe just poor speakers.....had a similar problem with an old sony. Replaced the speakers twice and always had a noticeable buzzing. Try running external speakers (computer speakers will work) at low volume to see if you hear it in those. If so, you may have sound board issue.

LG 37LG30 37 in.... | Answered on Jan 03, 2011


HDMI would be prefered but scart is fine.
Hope that helps.

LG 37LG30 37 in.... | Answered on Dec 29, 2010


It sounds like your aunt switched the TV's "input" mode. Look for a button labeled "Input" and press it. She will most likely have to press it a few times as it cycles through the various inputs till she reaches the correct one.

LG 37LG30 37 in.... | Answered on Dec 27, 2010


The power LED light indicator still have power on?No,than the power supply board is the causes and the problems.That the board,where the power a/c cord plug into it.Tries websites like Shopjimmy.com,Ebay.com to buy a whole refurbish power supply board for the replacement.

LG 37LG30 37 in.... | Answered on Dec 25, 2010


Hi,
Your Tv was damaged. Need special cure. I suggest you to get it repaired at dealer. Check your warranty term and condition and its period.
Regards

LG 37LG30 37 in.... | Answered on Dec 17, 2010


Hi frank, my name is John. Welcome to FixYa. You need to try, what we call a Cold Start-up. What you do is unplug everything, and let it remain unplugged for one (1) hour. Then plug it all back in the outlet and start it up manually. Thanks for choosing FixYa....John

LG 37LG30 37 in.... | Answered on Dec 12, 2010


The so called PLASTIC STRIPS un correctly called by xxxx1000 is called FLEXIBLE PCB, they are brown in color and easily damaged, they are connection to the LCD panel by Ultrasonic welding NOT SOLDERING and this some time can be the cause of the problem. If any one ever take the LCD PANEL part they will know what they are talking about.
The problem you have can be the the T-CON board, maun board, worst case will be the LCD panel itself.
But first thing to inspect will be the power supply DC filter caps. Next is to reseat the ribbon cable from the LCD panel to the T-CON board (this board is mounted under the metal shield).
So inspect the inside and post back what you find.
If you are going to DIY and have proper tools, electronics knowledge, and know safety precaution then please read on:

Please see my basic troubleshooting guide here:
http://www.fixya.com/support/r5093881-lcd_flat_panel_tv_troubleshooting_guide
http://www.fixya.com/support/r6150077-basic_lcd_monitors_troubleshooting
Failed TV and Monitors: http://s807.photobucket.com/albums/yy352/budm/
Learn about bad caps: http://en.wikipedia.org/wiki/Capacitor_plague
Parts: www.shopjimmy.com
Capacitors kit: http://lcdalternatives.auctivacommerce.com/Default.aspx he can make you a set of caps.
Or www.digikey.com just make sure to use caps with low ESR, 105c, high ripple current, long life rating such as PANASONIC FM or FC series.

LG 37LG30 37 in.... | Answered on Dec 09, 2010


Press the hd zoom # button or format/aspect button on your cable box/satellite box remote to adjust picture size. If that doesn't work try the below troubleshooting steps.

First make sure that your television is on the right input. i.e your cable box might be connected with both a coaxial cable and a component or hdmi cable. You might be on the input for the coaxial cable by mistake. Next check the resolution of your cable box and make sure it matches what your television can display. For example you should not have your cable box set at 1080i if this is a 720p television. Next make sure it is formatted for a 16:9 television under its (the cable box's) set up menu. Try pressing the wide/view mode/aspect/format button on your television's remote to adjust picture size.

LG 37LG30 37 in.... | Answered on Dec 05, 2010


bad capacitors on power supply

LG 37LG30 37 in.... | Answered on Nov 30, 2010


You have capacitors in the power supply that need replaced. If your not electronically inclined then I would have a tech take care of it for you. It's not an expensive procedure.

LG 37LG30 37 in.... | Answered on Nov 28, 2010


U have to litterly turn the tv 20 degrees to the left or to the right.If u wanted the tv move to the left or the tv move to the right.The base stand dose not move,it is a solid base stand to hold the tv in with screws.Some tv u can swivels,but only can do it up and down by 20 degrees screen base swivels that it.Take a hold tight of the LCD screen panel and push it up or down 20 degree,that is ur base swivels.

LG 37LG30 37 in.... | Answered on Nov 15, 2010

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