New lg plasma wont turn on

Fault at its main digital board. Short circuited component/s at it. Contact any service technician; or the authorized service center. If you wish to get some details; check the site linked here. Pull up older posts. http://electronicshelponline.blogspot.com/ In most cases, the main board might have to be replaced. If so, a software [firmware] update too might be necessary.

check for shorted components on YSus board and Y Driver boards (the boards on the left with the back off) This job is for a tech type person.

Standby light goin On/Off, means the power supply regulator board is OK. Blinking of the standby light indicates a fault. It might be to the backlight inverter board, or the main board. These blinks of standby light are called blinking codes, from the number of blinks occur at one time switch ON, you can get an idea about the faulty board inside the TV. Count this blinks. If you wish to get more details about these blinking codes, check the site linked here.http://electronicshelponline.blogspot.com/
Pull up previous posts by its left sidebar, or type in the brand name and model number to of your set, to its search box, and press 'Enter' or view it in Mosaic / Timeslide option.

How many times do the power LED blinks at once after switch on. Count it carefully. These blinks are fault indications, which can help you an idea about the faulty internal section circuit. If you wish to get more details about these blinking codes, check this link.

if the tv unit goes to safety mode after you turn on that was mean an error was detected. check for bad component parts at y and z sustain board.

I unpluged mine and the light was still blinking when it was unpluged. I thought that was weird. So I pluged it back in and just heald the power button in untill the light went out. It went out within ten seconds. I pushed the power button again and the tv went on. WOOHOO!!! Just needed reset, I guess.

chk power supply voltages or replace power supply

on my 88 acura legend it was the "starter" "main" relay a hard part to find on the internet to get the right on. on hot days do you have a problem? if so its the main/starter and it is under your stering on the left. i just unpluged the bad on and pluged the new one in it was a 5-10min if you want to take the old one out you will find a bolt there its a pain but not nesisary

Just answered this on a different one. I have the Daewoo Plasma Digital Dream model dp-42sm, My dads tv expert friend looked at it and told us the ysus board was out. I got on ebay and bought the item from a store for 125 dollars used tested good with 12 dollar shipping, I put the part in myself it was very simple just take your time dont try and rush you have to take the actual bar the stand hooks onto off and the 2 boards going into the ysus board. It fixed the problem and is still in working order im using it now as the computer monitor.