Question about Philips Refurbished POWER SUPPLY 50/60 HZ (75111271) Power Supply

1 Answer

High pitched squeal coming from power supply on my philips VCR

We had a Brown out/Black out recently and the video started making a high pitched squeal from the power supply. Very occasionally after switching it off it will work for 2-5 minutes and then start making the high pitched squeal again with no power to the vcr. On the whole though it just makes the noise and no power to the VCR. I have removed the power supply cleaned it and viewed it to see it anything obvious would stare back at me. but this was to no avail. I am living in Australia and would appreciate any help anyone out there could give as this is the only useful site I could find. It would be much appreciated. Thank You. PS. It is a Philips VR3261/75

Posted by on

1 Answer

  • Level 1:

    An expert who has achieved level 1.

    Problem Solver:

    An expert who has answered 5 questions.

  • Contributor
  • 5 Answers
Re: High pitched squeal coming from power supply on my...

Hi , i am a hardware engineer in the uk here to help if i can, the vga, doesnt normaly squeel , i have not heard of this problem , is the graphics card pci or does it go into the brown slot,if its pci the try change the card to a new one if its a brown slot where the card goes it may be the board slots blown as you say the vga only works for a few moments , see if that helps regards steve

Posted on Mar 19, 2007

Add Your Answer

0 characters

Uploading: 0%


Complete. Click "Add" to insert your video. Add


3 Points

Related Questions:

1 Answer

Power Supply Dry Run Problem

You need to have the case's power switch plugged into the jumper pin header of the motherboard. Plug in the PSU into the 120 volt mains, enable the PSU via the switch (the one you turned on in the video) and then press the power switch on the computer CASE.
That should do it!

May 29, 2013 | System Power Supplies

1 Answer

5 yr old Asus with antec 450 power supply has had NO issues ever. Now I need to turn the ps off and on 2 or 3 times before the start switch at the front of the comp will work.... once it boots up...

there are several filter capacitors inside the power supply that are defective and /or are changing value. this accounts for the high pitch squeel you are hearing...the only REAL way to test for these problems are with an esr meter or lcr bridge, but you can physically look at the capacitors and see if any of them are bulged up or leaking., my suggestion is to go to and get another 450W or better PS...they are pretty cheap there

Dec 27, 2010 | Antec SP450 450W SmartPower ATX 2.0 20/24...

1 Answer

When I switch the power on the inverter, it squeals briefly and then shuts down.

Two possible problems; input voltage too low, or the output load too high. If input remains at 12v or higher and it shuts off with no load, then the inverter is bad.

Mar 19, 2010 | Vector 750-watt Power Inverter Power...

1 Answer

My Power Suplly makes a high pitch noise and the

The problem lies in the reduction of operational frequency. It is mainly caused during the loose of ferrite cores or failure of HV diodes across the primary coil.
1) Check the looseness of ferritte cores parts loose or fixed properly ?
2) If OK Just check the components parallel to the high voltage side of the big transformer.
3) Check low voltage schottky rectifier diodes. One must be shorted. Just remove and here the sound. If it disappears, it must be faulty. During this test, the output voltages may increase to three times also. So, to safeguard, disconnect the filter capacitors.
Solution :
1) If any of the core becomes loose, just join it properly with epoxy or glue.
2 & 3) If any device fault occurs, just replace it in case of schottky rectifier diodes better replace with higher capacity. Capacity with numbers are given below :
1N5822 => 3 A
F12C20=> 6A per channel total 12A
MBR 20150 => 10A per channel.
MBR 3035WT => 15A per channel

Jan 28, 2010 | Dell - NPS-200PB-73M (NPS200PB73M) Power...

1 Answer

I was using my Monster Power PowerCenter PC 800 power surge protector. My tv was running off it, Xbox360, and I had an iron plugged in too. All of the sudden it shut everything off and had a high pitch...

You have to open it up. Check for busted fuse, or a burnt
part. Your Power Center PC800 just experienced an overload. It could have blown an internal fuse at the least
and a burnt out part at its worst.

Nov 14, 2009 | System Power Supplies

1 Answer

New replacement power supply makes continuous high-pitch sound

If the computer turns and works (other than the noise) then the wiring is correct. The ATX plug should be keyed so it is almost impossible to hook up incorrectly, and the wiring is for the most part standardized. However, there could be a problem if it is an older computer and your replacement power supply is from a Dell. Dell ATX power supplies, mostly from the PII to PIII era were not wired to the standard ATX pinouts. So, if you put a non-Dell power supply in an older Dell, or if you put an older Dell power supply in a non-Dell PC of any age, your wiring will not be correct. Usually incorrect wiring means either it fries or just doesn't start at all.

Specialized PC's or high end servers may also use non standard power connectors.

If you paid less than $40.00 for the power supply, the problem is most likely just a bad / poorly made power supply. Most of the budget power supplies are extremely cheaply made. They will sometimes have a lot of noise/whine/hum, and often fail quickly. In a lot of cases you will be able to tell the quality of the power supply just by the weight. The cheap ones are usually as light as can be. A good power supply will have some heft to it, as it will have large heatsinks and heavy duty components. If you have a Radio Shack nearby you could pick up a Thermaltake 300 to 450 watt power supply and try it and see if the problem goes away. They have a pretty flexible return policy. If you have a high quality power supply, it could be that you just got a bad one. Try another to confirm. If you try a Thermaltake and it still whines (and never made noise before this problem came up) then it could be that other components in the PC are near failure--possible as a result of your previously failing power supply. My experience though has been that unless the power supply popped (as in literally blew out) the motherboard and other internals aren't usually affected.
I am assuming here that the computer is starting up. If not, make sure that that all the necessary power leads are hooked up. Newer motherboards may have have a 20 or 24 pin main ATX power connector. They may also have a secondary 4-pin 12v connector to power the CPU. If you are mixing a really old or new revision power supply with an opposite age motherboard there may be a problem of not having the appropriate connections available.

Finally, if you are under-powered, you could also experience problems. What is the wattage of your new power supply and what type of computer/CPU? If you are running a 200 watt power supply to power a modern motherboard/CPU you may not be able to supply the power needed. This could result in a stressed power supply, which may make noise, or just power offs or system instability.

I very much recommend spending the extra dollars for a well made power supply. I have replaced many of the $20.00 units. Even if they say they are 350 or 450+ watts, they don't hold up. Often the computer will start random power offs and then the supply will fail completely. A good supply will usually come with a 5 year warranty and will be generally problem free.

Here is a link to a wiring diagram for the ATX plug--just to be complete.

Oct 03, 2009 | System Power Supplies

2 Answers

I have an IBM 74P4410 power supply on which the DC led does not light up. There is no signs of damaged or heat stressed components. Any idea?

To make sure that your PC is working, try to check the CPU Fan is working. If not then no power supply going through into your Motherboard. At this case see to it that you connect properly your power supply into your motherboard and with all the power buttons are correctly connect. Look at it inside your CPU ok! then tell us what is next problem on your unit.

Jul 29, 2009 | IBM X346 HOT PLUG POWER SUPPLY (74P4410)...

1 Answer

High pitch noise, no POST

it sounds like it has died and blown up (last time that happened to me it smelled bad too.)

Jul 14, 2009 | System Power Supplies

1 Answer

Plugged computer back in after move and won't start. green light in mb on.

pls try change the power cable if it works then check your power pack if the FAN doesn't roll that means you have to change the power pack thanks.

May 24, 2008 | System Power Supplies

3 Answers

Compaq power supply HP212 (old)

If connector have two big brown wires (pins 1 and 11) and a small brown wire (pin 2). then short circuit the small brown wire with a big brown wire (pins 1 and 2).
Also short circuit the small black wire (pin 16) with a big black wire (pin 17).
Ps. The Power Supply needs a minimal load ex: 1A.

Dec 04, 2007 | Dell HP-150SS (HP150SS) 150-Watt Power...

Not finding what you are looking for?
System Power Supplies Logo

406 people viewed this question

Ask a Question

Usually answered in minutes!

Top Philips System Power Supplies Experts

Tina Nalty
Tina Nalty

Level 2 Expert

121 Answers

Brian Sullivan
Brian Sullivan

Level 3 Expert

27725 Answers


Level 3 Expert

452 Answers

Are you a Philips System Power Supply Expert? Answer questions, earn points and help others

Answer questions

Manuals & User Guides