SOURCE: the screen blinks like a negitive then now the tv
Ur power IC inverter board it dead.
U need a new one.
SOURCE: screen is black two green blinking lights 1 red
Does the lamp ignite when you turn the TV on? If the lamp ignites, then turns off within a couple seconds, it is likely a bad Color Wheel.
If the Lamp does not ignite at all, then it is likely a bad lamp or bad ballast.
SOURCE: No picture no sound. All three lights blinking off
Hello,
The issue you describe is consistent with a power supply board issue. This is the board where the AC goes to.
I do not think it needs replacement, rather some defective capacitors are causing this issue.
Open
unit up and take a look at the power supply board.You will probably see
one or more electrolytic filter capacitors that are bulged up in the
top-not perfectly flat like the others.
The value of these
capacitors will be different, most likely they will be somewhere
around-820 to 2200uF/25 V( or /10V sometimes)
You
can replace them with same values but I would recommend the voltage
rating to be higher(like 35V for an original 25V) for reliability
purposes.
What happens is,these bulged top capacitors will cause a
low and unfiltered DC voltage=main board will malfunction(the relay
will keep clicking until the caps are holding enough charge to bring the
voltage up over a threshold point).
You can buy these capacitors
at any Fry's or Radioshack store or you can order them online at vendors
like "mcmelectronics.com"(look for electrolytic capacitors).
After replacing these capacitor(capacitors) most likely the normal operation will be restored.
Note: There
may be also some other causes for this symptom ,like a defective T con
board ,or main board,but the bulged top capacitors are the most common
cause for this issue.
If you don't know about TV repairers, take
the TV to the nearest repairman to fix the fault for you. Also, note
that TV stores a lot of current, so wait a while before opening the TV
back cover.
I hope this helps.
Good luck.
SOURCE: TV went off, no sound or picture, red light and 2
What is the Model # that is printed on back of TV?
SOURCE: black screen,no picture no sound.
Hello,
It's the problem of overheating in the power supply board of the TV.on the power supply board of the TV there are few capacitors and IC.any of this IC is got short or may be weak.so due to this when you start the TV the current passes from electric outlet to the power supply board of TV.but when the current passes from that weak/faulty part at that time current gets stopped or slow and the board overheats and TV shuts off. this is a common problem faced by many other users too.the possible option to solve this issue is to check the power supply board by a meter and continuity tester and replace the faulty component on the board which is short due to which power supply board is getting overheated. hope this will help in solving the problem.....
45 views
Usually answered in minutes!
×