Loose connection It connects and then the connection is lost

Blue screen usually means that the signal is lost between the camera and the screen for some reason. Check the connections and see if any are loose, or worse frayed or sliced. May be a loose connection. If the camera is in the elements, then it could be as simple as unplugging and plugging in again.

Check for loose battery connections or corroded connections. Check also for a loose ground wire to frame or engine block. If they all seems fine make sure your battery is fully charged and if so check fuses. Think simple first then go up the line for bigger problems. Hope this helps.

Week signal.

Check connections to battery, starter etc..may be loose..not connected.

It may caused by loose connection between your External Hard Drive and your PC.. try another USB hub or change your Cable wire... thanks

if it is a wireless connection try moving closer to the router or look up a thing call port fortwarding...basically making a direct connection between your PS3 and your router.

You may be having an issue with an usb hub try connecting it to another usb port. If this is a notebook and you are connecting it through a port replicator disconnecting the notebook from the replicator can cause you to loose connection to the printers.

cant get it to connect to computer as i switched computers,lost the disk

There must be something that has been introduced to your area that is causing distortion in your WiFi signal. 802.11 or WiFi is very susceptible to noise or signal distortion and can come from many things from interfering objects to other wireless signals such as Wireless phones. There are also many other things that can cause signal distortion I would look to see if you have added anything new around the time the unit lost signal. If your unit is working properly when you are closer to the router than this has to be the problem. Range is a big iffy factor when messing with WiFi.

You may have a loose solder connection on a PC board in the color circuits. You might try jarring the set by hitting it at different places on the cabinet. NOT TOO HARD ! Like not with a hammar. If there is a loose connection it may show up. Also check to make the color level control hasn't gotten turned down. Hope this helps. Sometimes when you move a set you flex the circuit boards. If there is a poor connection it may show up--- in your case in the color circuits. Stargazer