Power on's for 2mins and gets off
This issue is related to a power problem as long as the TV turns on and off by itself.
problem is consistent with overheating on the power supply board of the
TV. it might have worked fine in the past, but that's electronics for
you. Power surge, irregular power supply, excess power supply, etc can
affect the unit thereby making it to misbehave.
The power supply
board of the TV has few capacitors and IC. If any of these IC's gets
short or become weak, it can cause the TV to turn off on it's own.
current passes from electric outlet to the power supply board of TV.
The current also goes to the weak/faulty part, then the current stops
or slow and the board overheats and TV shuts off on it's own.
solve this issue, check the power supply board and read it with a meter
and continuity tester, in order to detect the faulty part and replace
the faulty part on the board which is short due to which power supply
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. Or you can by a refurbished complete power board from
www/shopjimmy.com to save you some stress.
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 have the ability to read the fault,
then you might be needing the help of a repairman or you can call a
friend that has the ability to help you out.
I wish you the best of luck.
Sep 28, 2011 |
LG TV Receivers & DVRs