When i turn my tv on, it can take up to 10 mins to get a picture on, it started with the sound coming in a bit after ther channel changed.
Have Legend EDTV powers up and green light just blinks then goes on steady.. All Manual Controls wont work and i get no Pictuture it is model number L1527.
The problem is inside th vga hdmi board ,i have repaired 2 of these
units the 37 inch version and found a bad 100 mf 10 v capacitor . little bit of soldering/de soldering skill is needed .
cost of cap 0 dollars got it from old radio.
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The tv have a long board call a LCD inverter board.This long LCD inverter board is dead.That why,the tv have picture only flashes like a min. than,died and have sound left only.The LCD long inverter board help the LCD screen panel to have a backlight to produced a picture.Tries websites like Shopjimmy.com,Ebay.com to buy a refurbish long LCD inverter board for the replacement.
The problem is inside the vga hdmi board ,i have repaired 2 of these
units the 37 inch version and found a bad 100 microf 10 v capacitor . a little bit of soldering/de soldering skill is needed .
cost of cap 0 dollars got it from old radio.but it takes along time to repair-you have to remove the back cover and note lot of screws .ernie
Hi my name is Roety,
I can help you with your issue ,
This is most likely a power supply issue
I usually replace the swollen capacitors I can see
A repairman would charge about $300 to replace them for you.
If I have helped you with your issue
If you have more questions you can still respond
I will reply asap
You have an AC resistance problem on the interface board. Passive components such as silver mica and electrolytic capacitors are not charging and discharging properly. This causes a delay or disruption in the start-up process. Byte signals are weak and intermittent due to other thermal components failing such as 'diodes, smd mosfets,...etc...''' Believe it or not this happens from manufacturers using 'inferior-grade' circuit components that fail under considerable load conditions. By replacing a few parts with better quality parts will solve this issue for you. To replace these parts requires removing the back cover and using some test equipment. If you can get someone who is technically proficient I can e-mail them instructions on how to fix this problem on the circuit board.
Sounds like you have a faulty capacitor on your invertor..Gently press on the screen when there is no picture.is there light on the screen? If so, there is backlight but no video..hence a mainboard or power supply problem..If there is no backlight then the problem is the invertors or the power supply not supplying 24volts. The invertor is located on left or right hand side of screen..Check that all connections are secured and not loose.Check that the power supply capacitor tops on the power supply do not have bulging tops..If not, and voltage is reaching the invertor, then remove the invertor and check for bad solder joints and leaking capacitors.