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Power Supply failure in Philips VR288/55 VCR

VCR failed to switch on after mains failure.

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Toshiba VCR V-e41A fails to switch on . The fuse is intact. need circuit diagram to repair. please suggest
Above is a VCR Training manual, this is what is used to teach the Engineers how to troubleshoot and repair these types of units.

Usually in these units, it is either the Power Supply is faulty, or, Check the Mode Switch, these are common causes of NO GO. One MUST ALWAYS start at the PSU, as if the Voltages are NOT correct there nothing else can be.
Above is a DIY troubleshooting and repair website for the VCR.

Jul 22, 2010 | Toshiba VCRs

1 Answer

Panasonic AG-DS550 VCR shuts itself down about 2 seconds after switched on. No error code appears in that brief interval. Toggling the power switch immediately is ineffective, but after waiting a while,...

This is a typical symptom of a power supply failure. There are some self-checks performed at power-up that are not completing correctly. Were there any symptoms before the complete failure? Often, the units start to behave strangely before complete shutdown. The power supply failure is tied to defective capacitors in most cases. These supplies are what are called "switch-mode" supplies and must oscillate to work. Defective caps will either not provide the kikcker to start the oscillation or prevent the oscillation completely. While there are other causes, this is the most common. AG units are professional decks and should be serviced by authorized service centers.

Hope this helps,

Dec 07, 2009 | Panasonic VCRs

1 Answer

No power getting into unit. Is there a fuse or is the power supply shot?

There is an internal fuse, usually sits near the mains input socket on the internal power supply. It may have just "popped" so replacing it might activate the VCR. However if it has blown severley then there will be a short circuit in the power. If is has not blown then you need to check that you are getting the secondary voltage from the transformer using a multi meter. It is most probable one of the capacitors in the power supply has failed. Take a close look at them to see if there is any swelling on the top of any capacitor, if so replace it.

Jul 29, 2009 | JVC VCRs

1 Answer

VCR will not turn on.

Remove top cover of the VCR. Then look near the back where the plug-in and power supply is. There should be a little glass fuse. You should keep that fuse and take it to the store and replace it with same exact one. If your VCR can be self-repaired, than this is the only thing you can try.

Mar 11, 2009 | Philips VCRs

1 Answer

Rca vhs vcr model vr355

The clock uses very little power so a weak supply might still be able to provide stable voltage to it.
All the other functions require enough power to drag down a supply that is on its last legs and I think that is where the problem lays.

If the display brightness seems normal, then either a different section is being used for the missing functions or a weak capacitor in the power supply can no longer filter the DC voltage well enough to provide stable voltage to motors, the main board, etc.

To determine what is at fault will require some technical skills and a couple of instruments normally not found at home.

About the only thing you might try on your own is to open the case, look for a customarily separate board that appears related to the AC input cord which should be unplugged at this time.
You will see cylindrical parts ranging in diameter from 1/4" to about 1 1/4" and various heights.
The tops are normally visible and the cases are of aluminum. Look for any that seem to have bulging tops or a crusty deposit around their base.
Those things are visible indicators of failure.

If you find such parts and have an appropriate soldering iron (not a higher power 'gun') you might remove these and buy replacements.
That could be a problem since most electronics supply places won't even talk to you.
If you want to try on line, look at , one of the few who will sell single quantities of parts.
The values will look something like this:


These parts are polarized so if you don't see a '+' or '-' on the board, be sure to mark it before removing so any new part does not fail immediately after replacing.

Aug 18, 2008 | RCA VR355 VHS VCR

1 Answer

Zenith Inteq

This can be something mechanicaly binding in the mechanism. It is also possible that the power supply is starting to fail, and when under load it goes into protect. It is also possible that there are some circuits in the VCR that are pulling too much current due to some failures.

The VCR should be checked by an experienced service tech who knows VCR's.

Jerry G.

Jun 08, 2008 | Zenith VCRs

1 Answer


The power supply has some bad components in it. This is a "switch mode" supply that means that simple fail;ures can show up in odd ways. Usually there are capacitors that go bad in these. Search the web for "repair kits" for these models. These kits will contain the most common replacement parts for the power supplys.

Mar 14, 2008 | VCRs

2 Answers

Fuses blow afer power surge

These are switch mode power supplies and very difficult to repair. If you don't find all the blown components, they just blow up again when you try it. If that model has a separate module for the supply, you can try and order a replacement, but they usually are too expensive.
What model is it? Maybe I have a junker I can take the supply from for you?

Jan 02, 2008 | Toshiba M665 VCR

1 Answer

Poor playback

Because the cable signal is OK, this eliminates the tuner as your problem and leaves the power supply which is a common problem. It is a switch mode type which often have trouble maintaining control of its output voltages and produce trouble downstream in the video circuitry. Either the power supply is failing which can be wholesale replaced for about a $150, or something somewhere else is failing and loading down the supply causing it to overwork. Usually in this case, you can hear a whine noise if you listen close.

Dec 28, 2007 | Sony SLV-N750 VHS/S-VHS playback VCR

1 Answer

Playback sound

Unit might be picking up 60 cycle hum or other electromagnetic field. Is VCR sitting on/under another piece of electronic equipment? If so, it could pick up such from the power supply circuitry of that other device. Try moving the VCR away from other equipment and see if the unwanted sound disappears.

Mar 09, 2007 | Philips VR550 VHS VCR

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