Replace power supply board - Dell W4201C 42 in. Plasma HDTV

If your Hisense 55-inch 4K TV with Android is turning off randomly, and you have found that the power supply board is wet, it is likely that the issue is caused by a problem with the power supply. Replacing the power supply board may resolve the problem, but it's important to consider the following before making a decision:
Safety: If the power supply board is wet, there is a risk of electrical shock, so it is important to make sure that the TV is unplugged and that you take appropriate safety precautions before handling the power supply board.Root cause: The problem could be due to a leak or another issue that caused water damage to the power supply board. If the root cause of the water damage is not addressed, the new power supply board may also be damaged.Difficulty: Replacing the power supply board can be a difficult task, and it requires some technical knowledge and the right tools. It's important to make sure that you are comfortable with the task and that you have the necessary tools before attempting to replace the power supply board.Cost: replacing the power supply board may not be a cheap solution, and it may be more cost-effective to consider a new TV.It's important to have a professional technician to check the TV and confirm if the power supply board is the issue and if it needs to be replaced.
If you're not comfortable with the task of replacing the power supply board, it's best to contact Hisense support for further assistance or have a professional technician to check the TV.

Hi
Either the power supply is
not generating a proper 48
Volts or the controller board
is not detecting a 48 Volt
output from the power
supply board.

1. Make sure the power supply
board is correctly connected to
the controller board.
2. Power on the printer. If the
message appears, do the power
supply operational check (page
195). If the power supply fails the
check, replace it. If it passes the
check, go to the next step.
3. Power on the printer. If the
message appears, replace the
controller board. Record the
message and return it with the
defective board.

Hi Muhammad
4 blinks Power SOS P-Board
BOARDS DESCRIPTION: P MAIN Board = Power Supply (VT30 Models) - Non-serviceable. Must be replaced for service.
P SUB Board = Power Supply (VT30 Models) - Non-serviceable. Must be replaced for service.
P Board = Power Supply (All Other Models) P2 Board = Power Supply (All Other Models)

Hope this helps
Len...

Without seeing the board or the schematics, I can't say that replacing the power supply will fix your problem. There could be a short external to the power supply that is causing your problem. You can buy replacement parts from
Shopjimmy.com or Ebay.com
There are a few decent parts sellers on Ebay who actually offer warranties

U replaced the tv power supply board,the board u replaced,that is the board where the power a/c cord plug into it?Check ur old power supply board,examines all parts,see if u have any capactors parts are bulging or puffing up on it tops.Yes,than it is power supply board issue.But by replacing the power supply board only get 50/50 chances for the tv to work.Might be the problems,might not be the power supply board issue alone some times.The chances are tv Tuner signal board is dead also.That the board,where the tv incomming broadcasting signal cable plug into it.Try website like Ebay.com to buy a refurbish tv Tuner signal board for the replacement.

The power supply board have 6 capacitors dead,must have very high current going through the tv to have that many cap to died on the power supply board.U have good electronic skills trouble shoot the power supply board again,have something else is dead in there?Or try website like Ebay.com to buy a refurbish power supply board for the replacement.

Power supply board is dead.Replaced the power supply board will solved this problems.Tries websites Shopjimmy.com,Ebay.com to buy a refurbish power supply board for the replacement.

The exact same thing happened to my D815EAA2. In my case an overheating power supply destroyed the board. Do the following:

1. Check the power supply you replaced it with works on another system.
2. If it still doesn't work with your board, the board will need to be replaced.

Its been a while since i worked on that power board. But I believe you are refering to the orange diode that runs into the single connector for the video board next to the power supply. I replaced mine with a 1n914 diode after replacing the 2200uf lytic cap and the tv fired right up.

Hello,

The Power Supply Board is listed below. Please note, there are 2 models with the same beginning number (PDP4294). Verify your model number before selecting the Power Supply Board as each board is different depending on the model number.

For PDP4294LV use:
Akai PDP4294LV Power Supply Board Replacement

For PDP4294LV1 use:
Akai PDP4294LV1 Power Supply Board Replacement