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Why won't my Panasonic DVD/VHS recorder repower after a power outage.

I experienced the same problem with my Panasonic DVD recorder. My girl friend replaced 2 aluminum electrolytic capacitors - leaded 100uF 250 volts AEC-Q200 on the power supply on the unit. After plugging up unit after a year of no power, it powered up immediately. Plus, it would work for 3 weeks or so before a storm cause a power outage, which cause the unit not to repower up afterword. Does anybody have anymore suggestions.

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If it's that delicate, but you still want to keep it, you could try changing-out the mains fuse in the unit for a really, really low amps one.
You might be getting a power-surge as the power goes off, or as it comes back on. A very low fuse, might blow on the surge, which will leave you needing to replace the fuse, but not the capacitors.?
Best of luck.

Posted on Mar 09, 2018

Testimonial: "Thanks for your help."

  • Tim Lucero
    Tim Lucero Mar 10, 2018

    Another factor is that DVD/VHS recorders are not manufactured anymore. Furthermore, a brand new that was manufactured years ago costs almost if no over $1000 on Ebay and Amazon.



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SOURCE: I have freestanding Series 8 dishwasher. Lately during the filling cycle water hammer is occurring. How can this be resolved

Hi there,
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take it to a tech to check the system control chip could be bad.good luck

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SOURCE: Black screen on Zenith plasma tv's

Hello, My name is Dave and I can help you fix your Plasma TV. Give me a call. Feel free to give me a call @ 1-503-432-9904 or message me at

Thank you!


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Posted on Mar 23, 2009

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SOURCE: DVD RAM DRIVE does not recognize any contents on recorder DVDs.

First, one correction. Panasonic website for parts asks $437 plus tax and shipping for replacement part for PANSONIC SA-HT1500 dvd recorder.

My solution. I opened the box and unplug and plug back cable with black tape going to HDD, and tighten cable near DVD-RAM drive. I closed the unit, connected as before, and whooala, everything is back in normal. Apparently, so connections loose over time.
So, for now, my SA-HT1500 dvd recorder works OK, and I can see all contents on recorded DVDs and DVD-RAMs, and I am able to record from and to DVDs.

I also find out that in the worst scenario, there is flat fee charge for repair in autorized Panasonic repair center. The phone number is 847-468-5543, and it is in Elgin, Illinois. You have to leave message on their answering machine, and they will call you back. There is $130 flat fee for all parts, labor and shipping. Definitely worthy compare to ridiculous price for replacement part on Panasonic website.

Posted on Jun 04, 2009

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Related Questions:

1 Answer

Cpu fan spin and stop

1) Computer unplugged from power, computer case open, Anti-Static Precautions FOLLOWED;

Use a flashlight, and inspect the Electrolytic Capacitors.
(Provided your motherboard doesn't use just Solid Polymer Capacitors)

Radial Aluminum Electrolytic Capacitor

Close examination reveals no bad 'caps', then test the Power Supply's 3 main voltages;
3.3 Volts
5 Volts
12 Volts
All are DC Voltage

Or use a KNOWN to be good, Compatible power supply for a temporary test unit.

For additional questions please post in a Comment.


Feb 19, 2013 | Computers & Internet

1 Answer

Blackout in Motherboard, what is the problem

1) Not trying to sound like 'Mr.Negative' here, but even a new Power Supply can be bad. Happens.


I see Electrolytic Capacitors all over that motherboard.
(Radial Aluminum Electrolytic Capacitors to be more specific)

Leads me to the following;

If you have tested the three main voltages coming out of the Power Supply, 3.3 Volts (DC), 5 Volts (DC), and 12 Volts (DC), and know the Power Supply is good, take a look at the capacitors on the motherboard.

Look at the one's immediately surrounding the Processor socket.
THESE are used in the motherboard voltage regulator circuit, for the Processor.

They are NOT the only ones, used in the motherboard voltage regulator circuit, and specifically referring to the one's for the Processor.

There are others not close to the Processor socket, that are also used. (For voltage regulation for the Processor)

What am I 'talking' about?
A Processor has to have a steady, 'clean', supply of Voltage.
It MUST also be kept in the voltage range for the Processor.
Cannot have too much, or too little voltage.

More on the motherboard voltage regulator circuit,

Upon reading the article it will detail how to find all of the capacitors, that deal with voltage regulation for the Processor. You have to follow the circuit traces on the motherboard.

Visual identification of bad Electrolytic Capacitors,

{NOTE* Sometimes the Electrolytic Paste inside the capacitor dries up, and the capacitor shows no outward visual signs of failure ]

Find some bad Radial Aluminum Electrolytic Capacitors?
Identifying manufacturer, and codes, for values,

One place I recommend to buy Radial Aluminum Electrolytic Capacitors,

[In the fields;

A) Manufacturer: Leave alone
B) Lead Style: Leave alone.
C) Capacitance: Click on the value you need.
D) Tolerance: Leave alone
E) Voltage Rating: Click on the value you need
F) Operating Temperature Range: Leave alone.
G) Termination Style: Radial

H) Dimensions: Leave alone. In the examples in the chart that will come up, you can find the Outer Diameter, and Length you need.

I) Product: Computer Grade Electrolytic Capacitors, but you may want to leave alone. All the capacitors that will be listed in the chart, ARE computer grade, at least.

Now click on -> Apply Filters <- stated under the fields to the Right.
Scroll the page down.

{ Remember these capacitors are rated in MicroFarads. -> uf, not PicoFarads, ->pf. Scroll it down }

Also, hope whoever had the motherboard before you, knew about Anti-Static Precautions. You have been following them, right?

Processor also has fresh, new thermal paste on it? Heatsink is seated tightly, and level on Processor?

The 4-pin ATX +12 Volt power cable is plugged in?

For additional questions please post in a Comment.

Jul 15, 2012 | Gigabyte GA-8GEM667K Motherboard

1 Answer

No Displays or No Boot Up or Start Up on the Foxconn Winfast 6150K8MA-8EKRS

Always start with power. Is the computer getting the correct amount of power?

Power supply should be checked to see if the three main voltages are okay. 3.3 Volt, 5 Volts, and 12 Volts, (DC), power rails.

1) If ALL of the LED lights were on at once they would use less than 1 Watt of power.

2) EACH fan uses 2 to 3 Watts.

3) A typical Processor can use from 51 to 125 Watts. Just depends on what Processor it is.

Power Supply's three main voltages check out? Check the Electrolytic Capacitors on the motherboard,

(Starts at 0:04)

The capacitors used on the motherboard are Radial Aluminum Electrolytic Capacitors,

For additional questions please post in a Comment.

Jul 15, 2012 | Foxconn 6150K8MA-8EKRS Motherboard

1 Answer

Does this means my motherboard is burned out

No it means you have a bunch of bad Electrolytic Capacitors.

Maybe a bad motherboard.

(Hey good photo!)

Looks like they are by the Northbridge chip. Under that black finned Heatsink.
(The Northbridge, and Southbridge chip makes up the motherboard chipset. )

Due to how bad they look, (Looks like i can see small holes, in the top of three of them), I would venture to say the computer was in;

1) Electrical storm. Lightning strike hit near your utility power pole.

2) Utility power company working on the utility line, replaced a line pole transformer for your area, and had the voltage set to high on the transformer. (If so you had better check, or have checked, your power. 120 volts AC range, is 108 to 127 volts. 220 volts AC range, is 208 to 227.
(My country uses 120 Volts AC.
I had a line transformer that was set to 164 Volts!
Had journeyman lineman set it down from the utility company!)

3) Brownout: Power in your area went out. Caused by overload on the utility power companies power transmission system. Too much power used at all once, by the power utility customers.
Causes a power surge.

3) Power supply voltage switch set to 110 volts, and computer plugged into 220.

That's what usually pops holes in the thin aluminum Vent Cover, of those Radial Aluminum Electrolytic Capacitors.

No holes? Just black flecks of Electrolytic Paste that has fried?
Then the capacitors just went bad, is all.
This happens. Details in a minute.

Not a lightning strike, or power surge, or wrong voltage setting?
I would say a good chance you can replace them, and have a working mobo again. (MOtherBOard)

Electrolytic Capacitor basic construction;

The style used on your motherboard are Radial. Both leads come out of the bottom. (Leads; think stiff wires)
They are also Aluminum Electrolytic capacitors.

Radial Aluminum Electrolytic Capacitor

The outside case is a thin aluminum cylinder. What you mostly see is a plastic sleeve on the outside.

The top of the cylinder is sealed with a Vent Cover.
A thin round flat aluminum disk, that has a shape etched partway into it. Usually a lK or X.

The bottom of the cylinder is sealed also. A thin, synthetic rubber round disk. It is the Bung. The leads of the capacitor poke through the Bung.

Inside are 3 types of strips.
A) One strip is a foil thin metal strip, and is the Conducting Strip. It has the Positive ( + ) lead connected to it.

B) One strip is also a foil thin metal strip, but has a non-conducting medium applied to it. It is the Non-Conducting strip, and has the Negative ( - ) lead connected to it.

C) The last strip is composed of a paper-like substance, and is soaked with Electrolytic Paste.

The Electrolytic paste soaked strip is laid in-between the two metal strips, and all three are rolled up tightly.
(There are MANY of these layers in an average Electrolytic Capacitor)

When an Electrolytic Capacitor goes bad the paste inside develops a gas. Hydrogen gas.
The gas expands inside the case. The resulting pressure compromises a seal, or both seals.

Can pop the Vent Cover open, as in your photo, and ooze out.
And/or can ooze out around the Vent Cover.

And/or can push one side of the rubber like Bung, out of the case, and ooze out.
(Capacitor is usually on a lean because of this)
And/or can ooze out around the outside edges of the Bung.

So much paste loss, and the capacitor operates at a weakened state.
Too much paste loss, and the capacitor fails.

Primer over.

Yes. Those capacitors have gone to 'capacitor heaven'.

(Not just the Japanese manufacturers. Also on other manufacturers)

(Need help using the above let me know in a Comment)

Due to your statement,
" Does this mean my motherboard is burned out?",
makes me think it was involved in a power surge.

Electrolytic Capacitor's paste breaks down over time. The computer engineers know this, and use capacitors rated at 2 times what is needed.
This way when the capacitor breaks down to 50 percent good, it is still 100 percent good for it's application.

They are used as Filters, and Voltage Regulators.
They are also the weakest link.

It MAY be that the power surge just fried a few capacitors. OR, it may be that the power surge went past them, and fried other components on the motherboard.

Motherboard chipset, chokes, also other Integrated Circuits, (I.C.), and what have you.
Not worth your trouble, EVEN if you can obtain the motherboard chips. (Plus they are mounted with a BGA surface mount)

Just went p-oof one day when you were using it? Myself I would try replacing the capacitors, but that's just how I ride.

Need guidance in doing so post in a Comment. This IS my A.O.E.

{ Just a note. In case you are thinking of rating this, hold off.
After it is rated, and a small time period, we can no longer converse.
At least that has been what I have seen in the last 3 years here.

Rating? Points? Don't care. Hearing back from you is what I prefer }

Jul 08, 2012 | Computers & Internet

1 Answer

Machine will not boot up shuts down after 5 secs

My question is have you checked the Electrolytic Capacitors on the motherboard? THOROUGHLY checked them.
(Motherboard out in hand, good lighting, and perhaps a magnifying glass)
If the Power Supply voltages are 3.3 Volts. 5 Volts, and 12 Volts, the capacitors on the motherboard are next in the diagnoses.

[ What was the Voltages, by the way? ]

Electrolytic Capacitors are used as Filters, and Voltage Regulators, on the motherboard.
The ones used as voltage regulators are in the Motherboard Voltage Regulator Circuit.

Part of what the motherboard voltage regulator does, is to regulate voltage for the Processor.

The Processor must have a steady, 'clean', supply of Voltage, and it MUST stay within a tight tolerance range.
Too little, or too much, and the Processor turns off. (BIOS turns it off)

{Capacitors in the motherboard voltage regulator circuit, that regulate voltage for the Processor, are in a Series circuit. If just ONE goes bad, the circuit is down }

An Electrolytic Capacitor used on motherboards, and in Power Supply's, for personal computers, is a Radial Aluminum Electrolytic Capacitor.

Radial refers to the design. With the radial design the leads, (2), both come out of the same end,

Basic construction of an Electrolytic Capacitor is;

1) An outside case (Shell) that resembles an aluminum Coca-Cola can, with no top, or bottom.

2) The top cover is a Vented Cover. Flat aluminum thin disk with a shape etched partway into it. The shape is usually an X or K.

3) The bottom cover is a Bung. A synthetic rubber disk shaped piece, that has the two leads coming through it. (Positive and Negative lead. Lead.......think stiff wire )

4) There are three strips inside the capacitor's case.

A) Conducting Strip. Also known as the Positive strip.
A thin strip of metal aluminum foil, that has the Positive lead connected to it.

B) Non-Conducting Strip. Also known as the Negative strip.
A thin strip of metal aluminum foil also, but has a non-conducting medium applied to it.
The Negative lead attaches to it.

C) A paper-like strip soaked with Electrolytic Paste.

The paper-like paste soaked strip, is laid in-between the two metal foil strips, and all three are rolled up tightly.

Computer design engineers know that Electrolytic Capacitors will eventually fail. They are the weakest link. They slowly fail because the paste is a chemical. The chemical breaks down.

For this reason, the engineers use capacitors that are rated at twice of what is needed.
As the capacitor breaks down to what is 50 percent of it's capacitance, it is still 100 percent good, as far as what is needed for that circuit.

When an Electrolytic Capacitor breaks down, it is the paste inside that is breaking down.
The paste develops a gas, (Hydrogen Gas), and the gas pushes against the seals, at the Top, and Bottom.
(Vented Cover at Top, Bung at Bottom)

The seals may then be compromised.
1) The X or K, at the top in the Vented Cover, may break open, and paste will slowly ooze out.

2) The edge around the disk shaped Vented Cover may break open, and paste may slowly ooze out.

3) The synthetic rubber disk shaped Bung at the bottom, may have one edge slightly pushed out, (Usually makes the capacitor tilt on the motherboard), and paste will ooze out.

So much paste loss, and the capacitor operates at a weakened state.
Too much paste loss, and the capacitor fails.





(Starts at 0:04)

Post in a Comment as to your findings Antony, and if the 'caps' are good, we'll go on.


Jan 08, 2012 | Packard Bell iMedia Computers & Internet

1 Answer

In hardware monitor i see bad values of voltage, if i measure with a multimeter the values are ok. after about 3 minutes the pc shout down. i cant find manual or schematic all tested links dont...

1) Do the voltage values stay the same right before the shutdown, or do they drop?

2) Plus, Voltage values; Are you getting a full 3.3 Volts, 5 Volts, and 12 Volts?

3) Check the Electrolytic Capacitors on the motherboard for visual signs of failure.

A) Electrolytic Capacitors are used on the motherboard as Filters, or Voltage Regulators, (Motherboard voltage regulator circuit)

B) Computer designers know that Electrolytic Capacitors break down over time. This is why they use capacitors that are rated at 50 percent more than is needed. When the capacitor (Electrolytic) breaks down to the 50 percent level, it is still good enough.

C) The Electrolytic Capacitors used on the motherboard are Radial Aluminum Electrolytic Capacitors.

Basic construction of a R.A.E.C. is;
1) A cylindrical aluminum case shaped like a Coca-Cola can, but with no top, or bottom

2) Top seal is a Vent Cover. A flat round thin disk composed of Aluminum, that has a shape etched partway into it, in the middle. Usually a K or X.

3) Bottom seal is a Bung. A flat round thin disk composed of synthetic rubber.

4) Three strips.
A) One strip is metal tinfoil composed of Aluminum.
B) One strip is also aluminum tinfoil, but has a non-conducting medium applied to it.
C) One strip is a paper-like strip that is soaked with Electrolytic Paste.

Strip A is the Conducting strip. It has the Positive lead, (Think wire) attached to it.
Strip B is the Non-Conducting strip. It has the Negative lead attached to it.

Strip C is placed in-between Strip A and B, and all three are rolled up tightly.
The Positive lead, and Negative lead, poke down through the Bung at the bottom of the capacitor.

When the capacitor starts to fail a gas is developed inside. (Hydrogen Gas) The paste breaks down, and makes the gas.

The gas expands, and breaks the top Vent Cover open at the K or X, AND/OR, pushes one side edge of the Bung out.

The gas then slowly pushes the Electrolytic Paste out. (It oozes out)

So much paste loss, and the capacitor operates at a weakened state.
Too much paste loss, and the capacitor fails.

The paste can also dry up inside, and show no visual outward signs of failure.

Power unplugged to computer, Anti-Static Precautions observed, the motherboard should be removed for visual inspection of the capacitors.
It may require using a magnifying glass, and a good light.

Post back in a Comment as to your findings.


Oct 03, 2011 | Shuttle MK40VN Motherboard

2 Answers

I have intel 845 GVSR mother board in that some capacitor are week i want replace it but i not getting same value capacitor. The capacitor value is 820mfd/6.3 v. Please suggest equalant value


may I ask how did you know the capacitors are already weak? Do they look bloated and acid just came out?

The value of 820 mfd must not be changed, The value of voltage can be increase at 10 volts maximum!

Usually i go for the parts in my local computer shop where you could get theparts taken from a dead board!

Hope thats helps you out!

Dec 07, 2010 | Intel D845GVSR Motherboard

1 Answer

We have mercury 845 gvm motherboard dead what can we do to repair

Electrolytic Capacitor replacement is about as far as you can go, unless you have a reflow machine, and access to purchase the various chipsets on the motherboard.

[Most of the time when it is stated that a motherboard is bad, I have found it was a bad Power Supply instead. LED lights light, fans may spin, but the Processor is not getting enough power to turn on. Try a KNOWN to be good, compatible Power Supply for a test unit. Perhaps there is an unused computer that you can borrow one out of for a test ]

Visual signs of capacitor failure. (Problem is they don't always show signs of failure. The Electrolytic Paste inside the capacitor can dry up ) {Motherboards and Power Supply's most generally stick with Radial Aluminum Electrolytic Capacitors}

A capacitor's values are rated in MicroFarads, and Voltage. A lot of Electrolytic Capacitors, (Radial Aluminum) are marked with a manufacturer code, and do not state uf or Volts. (The symbol for Microfarads looks like uf. This is actually the symbol, ?F. It is also abbreviated as MFD)

The main manufacturers are Japan and China, (Taiwan)
Info to help you decipher the manufacturer code markings,

Radial Aluminum Electrolytic Capacitors are Cheap.
(I borrowed two 330uf 10 volt capacitors off of a new/old Pentium II motherboard, and installed them in a modem that needed it.

Soldering/De-soldering leaded capacitors:

(You're not going to see any 200 volt 'caps' on a motherboard. Power Supply? Yes)

For further questions concerning your problem, please state in a Comment.

Oct 23, 2010 | Mercury Computers & Internet

1 Answer

Zenith Presentation Capacitor

Hello again! Sorry, I was not more exact... capacitors are not all alike...too long to go into...100uf 50volt Electrolytic Capacitors are what you need.
I always use the phone to order what I need and when you tell the parts person you need a 100uf 50 volt cap it's already understood that you want Electrolytic capacitors. It' s pretty rare to have to order the other types of capacitors as they are extremely long lived and are not in "high stress" circuits anyway.
Can you please tell me the model # of these sets. I will obtain (if I don't already have it) the service manual and make sure I am telling you 100% correctly what your problem is. Zenith tv's have always been notorius for this problem all through the '80s \ '90s \ early 2000s though. That's why I am telling you it is this same capacitor in all these sets
It makes me happy to help a school too! I am the single Dad of two elementary school age girls.
Is your school system in the USA? Just curious... Hope you have nice day!

Oct 06, 2008 | Televison & Video

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