I turn it on, then the lens slide forward, back, then forward again. Monitor reads, remove lens cap and turn power off and on. Lens cap isn't on but no matter how much I turn on or off, it just keeps doing this. Cannot take photos nor videos.

it sounds like it has slipped a gear in the lens.. you could try to manually push the lens in when it comes out and that might reset it but it also might break it.. best is to send it back to panasonic.. is a easy fix

There's a Music Bank 7-disc player in use in my bedroom these days. Nice unit, but they used to come in for service once in a while- from what I could tell, these units don't 'park' the CD drawers on a soft power off- they simply shut down. When powered up again, they sometimes let the disc last in play slide off the tray & jam the machine. I've had no issues, as long as I always hit stop, wait for it to park, and then shut off. The analog output's sound has been very good (has a coax out as well).

Chances are something is blocking the lens. It could be a lens cap, or your finger, or even a grain of dust or sand.

Here's the best first course of action:
1. Turn off the camera
2. Blow sharply into the areas around the lens/lens cap.
3. Turn it on again and see if that resolves the problem. Be sure nothing is physically obstructing the lens. (No lens cap, no finger, etc.)
4. If blowing doesn't work, try using a can of compressed air like you would buy at an office supply store, and blow out the area around the lens and lens housing. Chances are, if nothing was obstructing the lens that you could see, it might be a bit of dust or sand. Even a little sand can totally screw up the lens and keep it from moving in or out.
5. If this doesn't work, you should take your camera to a camera shop and have it professionally inspected and cleaned. Check out how much this will cost, though, before you do -- it might not make sense to pay what they want to charge, versus just buying a new camera.

No matter what type of laptop you own or how you use it, the CD-ROM or DVD drive is an important part of the unit. With the CD or DVD drive in place, you can play your favorite music or watch your favorite movies, so when that CD or DVD player stops working it is important to get it back in service as soon as possible.

1.Locate the bypass hole on the CD-ROM drive. There is a very small hole, generally located underneath the eject button, on every CD-ROM drive. Unbend a paper clip and insert it into the hole until the CD tray pops out.
2.Remove any CD that is in the tray and replace it with a CD laser lens cleaner. These laser lens cleaners are available at computer shops and electronics retailers.
3.Run the laser lens cleaning program, then try to play a CD again. If that CD fails to play, replace it with another CD and try again.
4.Shut the computer down and remove the AC power cord if cleaning the laser lens does not resolve the issue. Turn the laptop upside down and slide the battery release lever to the unlocked position.
5.Remove the battery and set it aside. Then locate the screws that hold the CD-ROM drive in place and remove those screws. Slide the CD-ROM drive out of the bay, then slide it back into the bay until it snaps securely into place. Replace the screws that hold the drive in place, turn the laptop back on and try to read the CD again.
6.Log on to your computer and right click on the "My Computer" icon. Select "Properties" from the menu and click on the "Hardware" tab. Click the "Device Manager" button and expand the CD-ROM section. Right click on the CD-ROM and choose "Update Driver" from the menu to download and install the latest device driver from the CD-ROM manufacturer.

I hope you find it very helpful. Thank you for using fixya

It seems you're having problems with the lens sticking (either not retracting or retracting then coming out then going back again, etc.) This "off, then on" problem is caused by some little cogs around the lens that easily slip out of place in this camera. The camera has trouble sensing if the lens is in or out, which is why it keeps asking you to turn it off then on again.

One solution is to give the camera a firm tap around the lens area. I don't necessarily recommend that since those cogs in there are obviously delicate. Other than that, repair is going to require opening up the camera and setting those little things back into place. I know that isn't the answer you wanted to hear, but it seems to be the only one.Please don't forget to rate me if satisfied.Thank you.

According to ehow:

Turn off your Canon 1000D and remove the memory card, lens, battery and time/date secondary battery. The secondary battery is a small, round battery about the size of a dime found in the same compartment as the main battery. It is located in a vertical slot. Slide out the secondary battery by pressing your finger on the battery and pulling it toward you.

Place the body cap on your camera to keep dust out. Attach the front and back lens caps on your lens to prevent scratches and other damage.

Let the camera sit for 20 minutes. This will clear the camera's memory.

Place the date/time secondary battery and a fully charged primary battery in the camera and turn it on.

Press the shutter release button (the button you push to take a picture). If you are still receiving an Error 99, the problem is most likely caused by the camera body itself. The camera body must be serviced by a professional camera technician.

Turn off the camera and insert the memory card. Turn the camera back on and press the shutter release button. If you are receiving an Error 99, the error is most likely caused by the memory card. Turn off your camera and insert a different memory card. Turn the camera back on and press the shutter release again.

Turn off the camera and reattach the lens. Turn on the camera and press the shutter release button. If you receive an Error 99, turn the camera off and remove the lens.

Turn the camera so that it is face down, and gently clean the lens contacts on the camera body with a number 2 pencil eraser or soft cloth. The lens contacts are the eight small, gold pieces on the bottom of the lens mount. Be careful not to let any of the eraser scraps fall into the camera body.

Turn the lens so that the side that attaches to the camera is upside down. Use the eraser or soft cloth to clean the lens contacts on the lens, being careful not to let any eraser scraps fall into the lens.

Reattach the lens to the camera. Turn on the camera and press the shutter release button. If you are receiving an Error 99, the error is most likely caused by the lens. Take the lens to a professional camera technician for repair.

According to ehow:

Turn off your camera and remove the memory card, lens, battery and time/date secondary battery. The secondary battery is a small, round battery about the size of a dime found in the same compartment as the main battery. It is located in a vertical slot. Slide out the secondary battery by pressing your finger on the battery and pulling it toward you.

Place the body cap on your camera to keep dust out. Attach the front and back lens caps on your lens to prevent scratches and other damage.

Let the camera sit for 20 minutes. This will clear the camera's memory.

Place the date/time secondary battery and a fully charged primary battery in the camera and turn it on.

Press the shutter release button (the button you push to take a picture). If you are still receiving an Error 99, the problem is most likely caused by the camera body itself. The camera body must be serviced by a professional camera technician.

6 Turn off the camera and insert the memory card. Turn the camera back on and press the shutter release button. If you are receiving an Error 99, the error is most likely caused by the memory card. Turn off your camera and insert a different memory card. Turn the camera back on and press the shutter release again.

Turn off the camera and reattach the lens. Turn on the camera and press the shutter release button. If you receive an Error 99, turn the camera off and remove the lens.

Turn the camera so that it is face down, and gently clean the lens contacts on the camera body with a number 2 pencil eraser or soft cloth. The lens contacts are the eight small, gold pieces on the bottom of the lens mount. Be careful not to let any of the eraser scraps fall into the camera body.

Turn the lens so that the side that attaches to the camera is upside down. Use the eraser or soft cloth to clean the lens contacts on the lens, being careful not to let any eraser scraps fall into the lens.

Reattach the lens to the camera. Turn on the camera and press the shutter release button. If you are receiving an Error 99, the error is most likely caused by the lens. Take the lens to a professional camera technician for repair.

What the troubleshooting guide suggest is to turn off the camera and turn it back on which sound like what you have been doing. The cause of this generally points to a camera malfunction between the camera and lens. This makes me believe that either something is restricting the lens from moving like the lens cap is tethered to the camera and tight on the lens so it can't do it's "pre" view and goes into the shut down mode. If the lens has any restriction be it the lens cap, ever ready case or anything that is restricting the lens movement remove it and try it again. I have another theory which is completely opposite to anything even suggested and that is the camera can't read the SD card so goes into shut down mode. If you remove the SD card and check to make sure the "lock" switch is in the unlock position. I'll give you a diagram for this.
The little switch needs to be pushed forward towards the gold contacts.
Diagram

The cause of this could be the problem of the lens and the easiest thing you can do in any attempt to fix your PlayStation 2 Slimeline console To remove the slide tray you have to remove the two small screws, ... Locate the lens (the circular glass part) and very gently rub the cotton bud around the lens .... a laser power meter to measure what is going on when you turn the pots.   

It could be some grit or sand causing the lens cover to not open, so the camera won't initialize. Try cutting a slip of paper narrow enough to slide between the lens opening frame and the lens cover. Move it in and out to clear any grit that might cause the spring-loaded cover to bind. Good luck !