Question about Video Cameras

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Receiving a beeping noise and error code of C:31:22

Upon changing out my cassette a small black tube with a metal lining inside fell out. I can not seem to find where it goes back to & now when I go to try to tape or play back my tapes I get a beeping noise with the above error code. My manual says this code is a malfuntion that I should be able to service myself however, if would be helpful to be able to know or see exactly where this little part goes back to. Any help would be appreciated!

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  • kellm Jul 23, 2009

    I have a Sony Hi8 Video Camera Recorder
    Model#: CCD-TRV318

  • Broadcast Innovations May 11, 2010

    dear ..plz explaing which model does u have ?


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  • 72 Answers

the error is related to S REEL TABLE , which usually ocuurs due the amount of tension with
new tape , u can't solve this problem ur own .. u need to take it to the service centre as they will
do tape path alignment for the same .

Posted on Jul 24, 2009

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Posted on Jan 02, 2017

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SOURCE: error message 31:22 reinsert cassette tape

reel sensor is the problem of your camera it is a common problem to that model,maybe the pinch roller is loosen to the post cause of the lock of that is been broke..that roller is that one that pulling the tape...only a technician can put it back to the mechanism and replace that sony service they replace the whole assembly and cost a lots...i suggest find other service center for fixing it...hope that roller is not lost in your camera...

Posted on Sep 07, 2007

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Continuous beep/crackled audio

Beep noise you hear is a BIOS Beep Code

The computer's way of letting you know something is wrong, and an area to look into for it.

Loud and continuous beep, usually indicates a problem with the Processor (CPU).
To be more specific the Processor is overheating.

More specific than that, it is caused by the laptop is dirty inside.

Air is used to cool the hardware components inside the laptop, with the cooling system.
The two hardware components that give off the most heat, is the CPU (Processor), and graphics chipset. (GPU)

The cooling system consists of;
1) Fan Assembly
2) Cooling Tube
3) Heatsink

Click on the image to enlarge.
The aluminum die-cast metal plate you see to the far right, sits on the Processor. (CPU)
The small metal plate is connected to a Cooling Tube.

The small aluminum metal plate to it's left, sits on the graphics chipset. (GPU)
As you can see it also is connected to a Cooling Tube.

Both Cooling Tubes end in a black rectangular finned, Heatsink.
What is not seen of the cooling system, is the Fan Assembly,

The flat part of the D-shaped shroud, of the Fan Assembly; rests up against the finned rectangular Heatsink.

A) The Cooling Tubes are a slightly flattened copper tube, sealed on both ends, and filled with Nitrogen.

B) The Cooling Tubes end in a finned Heatsink. A thin small strip of metal, that has tall thin fins protruding from it.

C) The Fan Assembly consists of a small multi-bladed fan, encased in a D-shaped shroud.
The fan draws air up from the Center, (Bottom of laptop), and exhausts the air through the fins of the Heatsink. (Then out the side of the laptop)

Heat from the Processor, and graphics chipset, is absorbed by their small respective metal plates, that sit on them.
The Cooling Tubes then absorb the heat from the small metal plates.
The Cooling Tubes transfer the heat up to the finned Heatsink.

The Heatsink absorbs the heat, then radiates the heat away with it's tall, thin fins.
Air flow from the Fan Assembly, helps carry heat away from the fins of the Heatsink.

When the fan blades, center hub, and surrounding cage, (Shroud), get dirty; the cooling capacity drops tremendously.
Just a light coat is all it takes.

When the fins of the Heatsink are clogged with 'Gunk', the cooling capacity drops tremendously.
Gunk = Dirt, dust, lint, hair, food crumbs, name it.

Also in-between the small metal plate on the Cooling Tube, and the Processor; is Thermal Paste.

The top of the Processor, and the bottom of that small metal plate on the Cooling Tube; are not perfectly smooth.
A magnified view would detail, 'Ridges, Valleys, and Pitholes'.
When the two parts are mated together, there are air pockets formed.

Thermal Paste fills these imperfections, and is an Excellent conductor of heat.

In-between the graphics chipset (GPU), and it's respective small metal plate, a small piece of Thermal Pad is used.
A Thermal Pad is a material that is impregnated with Thermal Paste.

After time (Age), and also due to overheating; the Thermal Paste can dry up.
Looses it's thermal conductivity properties.
Same goes for a Thermal Pad, as it's Thermal Paste dries up.

After cleaning it is suggested to replace the Thermal Paste PROPERLY, and replace the Thermal Pad.

A Thermal Pad CANNOT be reused.
Do NOT care if it looks like new.
Once the impression is made into it, from the small metal plate, it's DONE. Small metal plate will not contact, the Thermal Pad's surface correctly again. REPLACE.

Suggest use a can of compressed air for computers, Tweezers, and a small soft brush. (Makeup brush?)
This is an example of what a dirty laptop looks like inside.
Using the Dell XPS M1710 for an example,

This is Dell Support > XPS 15 (L502X) Notebook PC > Main Support page,

Click on the Manuals & Documentation tab.
(Product Support / System Configuration / Drivers & Downloads / Parts & Upgrades / Manuals & Documentation / etc )

Click on the blue - Service Manual (1451KB)

The Zoom In icon ( + ) at the top, increases the view size; when you click on it..
The Zoom Out icon ( - ) decreases the view size.

Click on - Heatsink - in the right column.

HMMM, never mind!
Seems this particular PDF file is messed up. Or it's on my end. You may have better luck.
Instead scroll the page down until you come to - System Board,

The Adobe Reader page number box is at the Top, to the right of the Down Arrow.
1) Put your mouse cursor in the page number box, left-click once.
(Everything in page number box is now highlighted in blue)
Now Backspace any numbers out.

2) Type the page number you want.
3) Press the Enter key.

Go to Page 45


When you get to Step 27, you can access the cooling system, to remove it. (Replace Thermal Paste/Thermal Pad)


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2 Answers

While watching a show on internet my daughter Dell M5030 went blank and when I tried to turn it back on, I got a blank screen and a beeping noise, so I have taken the battery out unplugged and plugged...

Tell your daughter that laptops get dirty inside.

The cooling fan is on the bottom of the laptop.
The laptop\'s bottom is CLOSE to whatever it is placed on.

Your lap? Forget it? It\'s a laptop in name only. Needs to be placed on a flat hard surface, THEN on your lap.

Due to the fact the fan draws air up from the bottom, all kinds of debris can be \'inhaled\'.
Dirt, dust, hair, lint, carpet deodorizer, (It\'s in the air folks), and food crumbs,..........just to name a few.

This \'Gunk\' coats the cooling system for the laptop, and causes it to overheat.

A general example of a laptop that is dirty inside, using the Dell XPS M1710 for an example,

The series of beeps you hear are BIOS Beep Codes.
This is the computers way of telling you something is wrong, and an area to look into for it. The series of beeps you heard, (beep code), is the Processor has a problem.

Processor has REPEATEDLY been overheating.

Let me state that one more time for her,


Along with the laptop being dirty inside, the Thermal Paste on the Processor has dried up.

The top of a Processor, and the bottom of the small metal plate that sits on it, are Not perfectly smooth. A detailed view would reveal,
\'Ridges, Valleys, and Pitholes\'.

When the two parts are mated together, there are air pockets created in-between them.
Air in this case is an Insulator, Not a Conductor.

Thermal Paste fills the above mentioned imperfections, and is an Excellent conductor of heat.

Going deeper;

The above is an example of the Dell Inspiron M5030 Notebook PC\'s, cooling system.

Here we see the odd shaped metal plate at the top, (Aluminum), that sits on the Processor, and graphics chipset.

There is a curved copper Cooling Tube coming away from it.
The Cooling Tube is a slightly flattened copper tube, sealed on both ends, and filled with Nitrogen.

What is not readily seen, is there is a rectangular finned Heatsink. This is on the right side of the Fan Assembly.
You can see it, but not it\'s fins.

Then there is the multi-bladed small fan, that is in the black D-shaped shroud.
-> Fan Assembly.

Heat is absorbed from the aluminum metal plate, from the Processor, and graphics chipset.

The Cooling Tube then absorbs the heat from the aluminum metal plate. The Cooling Tube then transfers the heat up to the finned rectangular Heatsink.

The Heatsink absorbs the heat, then radiates it away with it\'s Tall, Thin, fins.
Air flow from the Fan Assembly, helps carry heat away from the fins of the Heatsink.

After time, due to age, and repeated overheating; the Thermal Paste dries up.
Looses it\'s thermal conductivity properties.

Should be PROPERLY replaced. Cheap stuff to buy, and is cheap insurance.

With some new fresh Thermal Paste, maybe a small piece of Thermal Pad, some Q-tips, small soft brush, (Makeup brush?), Isopropyl Alcohol, (Rubbing alcohol), and a can if compressed air for computers; I can guide you step by step in fixing the problem.

(Thermal Pad for computers. It is a material that is impregnated with Thermal Paste. Size is approximately 1 Inch by 1 Inch, and 1/16th Inch thick )

Stating the following. Is not computer problem related, and you can \'E-slap\' me if you want..................

Back in my day, mothers were cherished.
Especially by a daughter.

"Oh, something happened to my laptop, and it doesn\'t work now?
That\'s OK Mom. We\'ll figure it out.

I know you didn\'t mean to cause my laptop any harm, and I love you"

Laptop -> Mom.
Mom -> Laptop

Hmmm, which means more to me?

DUH! -> MOM!

As I stated, with your patience I can guide you step by step.
Or a computer repair shop can fix this.


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