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Power supply failure for TCL plasma PDP42U4AS

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Ways to fix red lights blinking four times


Red Power LED
flashes once
every two
seconds.
OR
Red Power LED
flashes four
times, once
every second,
followed by a
two second
pause.
None Power failure
(power supply is
overloaded).
1. Check that the voltage selector,
located on the rear of the power
supply, is set to the appropriate
voltage. Proper voltage setting
depends on your region.
2. Open the hood and ensure the 4-wire
power supply cable is seated into the
connector on the system board.
3. Check if a device is causing the
problem by removing ALL attached
devices (such as hard, diskette, or
optical drives, and expansion cards).
Power on the system. If the system
enters the POST, then power off and
replace one device at a time and
repeat this procedure until failure
occurs. Replace the device that is
causing the failure. Continue adding
devices one at a time to ensure all
devices are functioning properly.
4. Replace the power supply.
5. Replace the system board.

Jun 14, 2014 | HP Compaq dc5000 Small Form Factor PC...

1 Answer

My HP D530C does not power on. The power LED flashes 4 times. What is the fault? Pls let me know asap. Thanks.


HP xw6200 Workstation - Diagnostic LED Code: Four Flashes ISSUE: When the workstation is powered on, the front LED might flash red four times, once per second, followed by a two second pause. SOLUTION: The front LED flashing four times is a sign of a power failure. To fix this issue, complete the following steps:
  1. Open the access panel, and check to see if the four-wire power supply cable is properly connected to the system board.
  2. There may be a faulty device. Locate it by removing all devices and then reinstalling them one at a time until the workstation fails. Replace the device causing the failure. Continue adding devices to ensure all are functioning properly.
  3. Verify the power supply functionality, as follows:
    1. Disconnect AC power.
    2. Remove all internal power supply cables from the system board.
    3. Plug in AC power.
      • If the power supply fan spins, and the BIST LED illuminates, then the power supply is good. Replace the system board.
      • If the power supply fan does not spin, or the BIST LED does not illuminate, replace the power supply.

Dec 13, 2011 | HP Compaq d530c PC Desktop

1 Answer

Power supply is damage


Hi,

Good day. For your power supply you better bring it to the nearest technical repair store. Plasma tv pc desktop are very sensitive and its dangerous if your just going to replace the power supply by yourself. Look for a number to contact for assistance on the receipt you got when you purchase the device. They will be able to give you suggestions in fixing the power supply. Hope this information help resolve your problem.

Thanks for using fixya and have a great day.

Jun 10, 2011 | Gateway FMC-901 w/ 42-inch Plasma TV...

1 Answer

The computer suddenly shut down & will not re-boot. On turning on there may be a few seconds to allow option of opening up in safe mode which is applied but within a few seconds the system shuts down...


Bad Power Supply.
Weak voltage power rail.

One of the leading causes of computer failure.
Replace the Power Supply.

[The next cause of failure is the computer is dirty inside, as well as inside the Power Supply's case.
Dirt, dust, etc, takes a Power Supply down quick ]

Need guidance of how to replace your Power Supply, or guidance in finding a decent replacement Power Supply let me know in a Comment.

Regards,
joecoolvette

Dec 02, 2010 | Packard Bell PC Desktops

1 Answer

Fuse for gx150 power supply


The fuse is located inside the ATX switch mode power supply and it is solder onto the circuit. There are dangerous voltages inside this power supply. I suggest you get a new switch mode power supply because failure of a component inside the power supply has caused the fuse to blow and replacing the fuse would most likely not fix the power supply.

Apr 03, 2010 | Dell PC Desktops

1 Answer

Powes ups then dies


Do a visual inspection of the Electrolytic Capacitors on the motherboard first.

Then check the power supply with a power supply tester, (About $15), OR replace the power supply with a known, good one for a test.

Visual Signs of Capacitor Failure, http://www.capacitorlab.com/visible-failures/index.htm

Want to know more just state so in a Comment.

Feb 16, 2010 | HP Pavillion s7420n PC Desktop

1 Answer

UPS, no power except during power failure


check the fuse or check battery

Jul 07, 2009 | PC Desktops

1 Answer

I have a hp pavilion a705w bout 12-30-04 it wont boot most times


That's because it has a failing power supply. I post this a lot. Why? Because 70% or more of computer failure, is directly related to the power supply. Next up is Electrolytic Capacitor failure on the motherboard, (The 'Caps' that surround the processor, more specifically. These are Voltage Regulators for the processor)

Then harddrive failure.

Many times you'll see a solution posted to use a Restoration disk, or System Restore. This is just a 'Band-Aid' approach. The power supply, for you, is the problem.

Apr 12, 2009 | HP Pavilion a705w PC Desktop

4 Answers

Plasma tv picture gone - sound ok. picture shadowy / blotchy


do you have more info on make and model?

Jun 03, 2008 | PC Desktops

1 Answer

My Compaq Presario will not start since we had a power failure in our town yesterday. It seems like it is unplugged, but it is plugged in. Can you help?


Can you check if the power is connected to the ac outlet, and if the cpu has a power. If no power in the cpu even the power cord is pluuged in the outlet of the power source the problem is your power supply. Maybe the fuse blow up when the power is back after the power failure. But sometimes the cpu has no power but the monitor have a power it's also power supply failure the dc output of power supply is not working. the best solution is to replace the power supply with the same wattages or higher.

Apr 15, 2008 | PC Desktops

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