20 Most Recent JVC LT-47em59 47 in. TV Questions & Answers

Shut TV off. Reset TV & router and any cable or DSL modems by unplugging for a good minute then plug them all back in and wait at least a minute or two for all to reboot.

Fault to the main power supply regulator section. Either it will be a separate board, or the part of main board. Check and replace damaged component/s at its main power regulator [SMPS] section circuit. Contact any service technician. If you wish to get some details; check the site linked here. Surf the site with patience. Pull up older posts. http://electronicshelponline.blogspot.com/ It will be best to replace the power supply regulator board as card basis rather than making "Surgery" to it; which usually will make loss for both money and time. Even though you can make it right, it will cost around an amount equal to the cost of a new board; including the cost of (spare parts + service charge) More to say, most of the spare parts to it will be difficult to get from open electronic spare part market. This is true to most of the flat panel TV power supply boards; irrespective of its brand and screen size.

Sounds like some kind of data interference or glitch. Dry caps will cause interference. By not smoothing inputting signals.

Make sure tv is receiving power, then check the power board.

First, look at the screen in darkened room to see if you can see any slight glow from the screen, if it does, then the problem can be the T-CON (not getting the 12vdc) or the main logic board not feeding the signals to the T-CON board.
if not, next place to check will be the power supply module, make sure it has 24vdc which is required by the backlight inverter to work, the reason for not having 24vdc can be from bad DC filter caps (leaking/bulging top, high ESR) or short circuits in the inverter board which will cause the 24vdc supply to go into shutdown mode, so you may have to disconnect the power cable that feed the inverter board to see if the 24vdc will work without the inverter board hookup, you will need to apply about 3~4 amp of load to the 24vdc to make sure it can handle that. There are fuses on the backlight inverter boards also. So there are some troubleshoot you will have to do to find out the causes of the problem you are having.

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://s807.photobucket.com/home/budm/allalbums

http://en.wikipedia.org/wiki/Capacitor_plague

Parts: www.shopjimmy.com
Capacitors kit: http://lcdalternatives.auctivacommerce.com/Default.aspx

usually a blue pix indicates there is no video signal going to the tv...they use it to prevent burning an image into the screen...try replacing the video cable or using a different video input

same thing happened to my laptop ended up buying a new screen on ebay but im not to sure with a tv

Hi,
Let the unit cool down for 1 hour keep away all the obstruction from the vent and give proper ventilation. If the symptom is still there then the problem is internal. Blinking of LED means that you a problem either on the power supply section on on its load. First check for bulged capacitor on the power section and replaced it. Second look for open fuse. If the symptom is still there, it is advisable to send to repair shop because series of test will be done to isolate the problem.
Have a nice day!
JDVillanueva

hello,
Ur power supply board is dead, u know basic electronics’ and soldering? Most of the times, the power supply board just have dead leakages gases capacitors.These capacitors always bulges up on it top,or puff up on it top.Replaced these gases leakages capacitors will get your tv power stable,and work again.Or tries websites like Shopjimmy.com,Ebay.com to buy a whole refurbish power supply board for the replacement.

The cable connections for your TV are not connected properly or are loose or the cables might have damage or the connection ports are broken.

http://www.jvc.net/cs/car/firmware/

no info generic answer read owners manual or search online for one

it needs service, that means using tools and meters and spare parts to find cause. dead screen black screened at all times.? even in HD TV antenna mode for HD TV? or just the remote CLICKER batteries dead. tell things that work and no not work , even LED actions. the maker has no books on this old TV https://jvcproducts.com/us/contact/support.html here they are ask them>? what rare TV. good luck fixing any RARE TV. moved you to TELEVISION.