Hello,
The problem should be from the front panel control board. The board is defective or has disconnected from the inside.
To
actually find out what's wrong, you need to disassemble the TV. But
before then you need to be sure there is nothing wrong with the remote. I
would advise you test the remote on another Sony TV irrespective of
its model to be sure about the condition of the remote. You can test it
on a family or friend's TV.
Once you confirm the remote is good,
then you have to check the front control panel board of the TV, as it
may have loosed contact or may have developed a fault.
Turn off
the TV, remove it from the wall, wait for about 30mins before you
attempt to disassemble it in order to avoid electric shock because TV
stores a lot of current even after it is being turned off.
Get a
screw driver, remove TV screws, open the TV back cover, carefully bring
out the main panel/board to gain access to the front panel.
Check
the wires connected to the front panel, make sure they are intact. Also
check if the buttons are not stuck . If all seem intact and problem
persists, then it means the board is detective and needs to be replaced.
I hope you understand the message I am trying to pass across.
Good luck.
Hello,
The issue you describe is consistent with a power supply board issue. This is the board where the AC goes to. This problem may have occurred as a result of irregular power supply, or excess power supply or power surge.
The TV is receiving current but cannot circulate or transfer the current to other necessary part of the TV because of the defective power supply board.
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.
Okay! Thank you for using FIXYA
×
.
button on the TV while still holding down the Up Arrow button. The TV will turn off and then turn itself back on.677 views
Usually answered in minutes!
This is not the problem. Now, when I plug in the tv, though it makes a click that sounds like it is on, the power light does not light up, even the standby light. Now it is completely dead.
I will keep this contact information, because I will not have the chance to try this solution for several days, as I must travel on business.
×