Where is the internal battery located - Sony HVR-Z7U DV Camcorder

Its a bad internal back-up battery.

No there is no internal battery. It uses the same battery for regular operation and flash. You will need to reset the clock if you remove the battery or if the battery has run dry.

The menu and time operation will all appear only if the battery is in place.

The error message refers to the battery on the bottom of the notebook that powers it when it's not connected to A/C power. If you go into the F2 at startup or use HP Support Assistant, you can run a comprehensive battery test

Internal means inside. An internal battery is a battery located inside the device. To get to the battery one has to open a battery compartment or loosen some screws to remove the back.

You will have to take the laptop apart to remove the internal battery. It is not an easy job. It is located on the motherboard.

Just as a follow-up I managed to locate the problem. I opened the camcorder up as it is out of warranty anyways and found that there is a thin flat flexible cable which I will call a ribbon cable that is broken. It connects the main circuit board to the one that holds the external battery and internal battery. I have called Canon to purchase this part (it has a part number etched on it which when you read it off they say it sounds like a legitimate part number) and so far have not been able to get it (they assume it is part of the main circuit board assembly and have not been able to actually locate this part number). As it stands now I know the problem and can not get the part.

The internal battery is located under the cover for the AA batteries compartment.  The internal battery holder is located next to the middle battery of the line of three batteries.  The end of the holder has the internal battery size printed on it (CR 1220).

no, there is not an internal battery in canon g6 for operating it.
probably the battery does not touch the internal connectors of the camera.

Remove the Front facia surround Undo four screws holding internal works to outside body You will need a T6 star screwdriver for this. Remove internal works from body at the base you will see silver foil covering feel over this you will find 4 T5 star screws securing this remove these and also remove speaker by two locating T8 star screws. Gently remove the electronic board keep all locating cables intact You will then see two T4 star screws holding battery holder remove these and the plastic holder .Unclip battery and disconnect from Pcb Board fit new battery and reassemble. .

Here's the battery you need: http://www.batteries.com/productprofile.asp?appid=254536 It's not inside the camera, it's the rectangular black box located on the back of the camera. It should just slide off.