I have a JCV EM37T TV, the picture is flickering when turned on and I have no idea how to fix it. Any ideas on how I can try to fix this issue?
It's likely that the power supply electrolytic capacitors have failed.
Replacing them requires knowledge of electronics, the ability to solder and an appropriate soldering iron.
SOURCE: Wavy Picture and Flicker
Now we have here a falure to communicate!!???LOL good movie bacjk in the late 60'S Can you guess what one?? your problem sounds to me like a main B+ capacitor, or a capacitopr off the main scvan sweep dirived power supply> good luck
SOURCE: DLP TV keeps flickering
Please recheck component connections in both units and make sure to hook up them according to corresponding colors like blue to blue, red to red and orange to orange.
SOURCE: Samsung DLP 42" flickering green screen
Just unplug and plug back in. Worked for me.
Try it a few times.
May not work for everyone.
SOURCE: I have a sony 50"
The flickering lines on the tv are usually caused by faulty sustain boards. There are usually two of them in most models and replacing them both should resolve your issue(should cost you about 200-250 bucks for both parts). Replacing them should not be too tough if you have some know-how of electronics. Otherwise please get me your zipcode so that I can help you find a local tv tech in your area who can do the job for you.
SOURCE: MY SAMSUNG LE37M87BDX HAS NO
It can be the 24vdc power supply is bad due to bad caps with domed tops, or bad backlights inverter board, check for 24vdc first, it can also be dead T-CON board, please read below to help you narrowing down the cause of the problem.
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 is some troubleshooting 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:
Basic LCD monitor and TV troubleshooting guide:
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 pictures: 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 and long life rating such as PANASONIC FM or FC series.
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