Can't get battery to seat so the clock won't go. this is a c battery but if I stick it in the tope of the holder it doesn't touch anything on the negative part.

You must have broken it!

possible but not probable that you will get spares for the clock
take the clock with you to places like Jaycar as they have a range of battery holders and compartments that may substitute in place

Could be something simple, like a bad cable.

The first thing to check is the battery: is it fully charged, are the contacts in good condidtion and do they make good contact with the contacts on the switch.
Next thing to check is the brushes. Remove the rear cover and check the brushes and springs that hold them down on the armature. If the brushes are worn to where they dont' make good contact or the springs are not holding them down with enough pressure they won't make good contact and sometimes a good hit will make them touch enough to work again. The brush part number is CB-440, if the springs are bad you have to replave the whold brush holder, part number 638614-1.

Go to the settings, there must be the ''calibrate screen'' item, or in the ''display settings'' section. For more info, write the precise phone model.

Shut down and unplug your computer.

Unscrew the two screws on the back of the case and open the side panel of the case.

Remove your RAM memory stick(s) from their holders.

Replace them into their respective holders again.

Ensure they are seated properly and clipped in.

Plug your power cord back in and see if your computer will boot. You can leave the side panel off just don't stick your fingers in there when it's plugged in.

If the problem persists, then you may have one or more bad RAM memory sticks.
If you have more than one stick installed, try removing one and reboot.

Always unplug your PC before removing RAM sticks and try not to touch the copper contacts on the RAM stick to avoid static damage, they can be delicate.

Good luck and please post back about how you make out.

One of the most common reasons for your computer not starting up is the RAM MEMORY STICK not being seated properly.

Unplug your machine then unscrew and remove the small RAM access panel on the bottom of your laptop.

Unclip and pull out the RAM stick(s) from the holder. Try not to touch the copper contacts on the RAM stick to prevent static damage to them.

Firmly reinsert them all the way back into the holder(s).

Replace access cover and reboot.

There are many reasons why a pc won't boot, this is just one of the easiest to check.

Good luck Jaysim and please post back how you make out.

Yes, Towards the back of the front seat and on the side are two big bolts.
I beleive they are allen head bolts. Remove the two bolts and the seat slides out.
If you have a rear seat, pull up on the front of the rear seat so the front will slide back.

Now you see electrical wires and a cdi sitting in a plastic holder. That plastic holder is the battery cover.
Don't unplugg anything, just pull the cdi out of the plastic holder so you can remove the cover.
There will be one screw holding that cover down. remove the screw and lift out the cover.

There is your battery for you to change out, charge, or check.

First your seat should have a key hole to unlock your seat from the frame. Look for something that resemble a key hole where you can stick your ignition key into and twist clock or counter-clock wise for 1/4 turn and pop-up the seat. Happy hunting

According to Nissan PDFs on line, it seems pretty straight forward, although it seems pretty cramped around the headlight assemblies (go figure...) For the driver's side, it recommends removing the battery to make some room in the 2004 book (I would agree, after seeing mine). For all, it recommends at least removing the negative battery cable.
It states several times NOT TO TOUCH THE BULB. The grease from your fingers will reduce the life of the bulb, if not damage it immediately.

I pasted the links for the PDFs below- one for the 2002 and one for the 2004. I can't wait to tackle mine in -20 weather.
Oh yeah- you will have to re-program your radio after disconnecting the battery.
Update: (Dec. 29/07) I changed mine today, and it was very easy.
1. Remove battery for driver's side bulb.
2. Unplug electrical connection to bulb. There is a locking clip that you depress with your thumb to unlock the connection to the bulb casing.
3. Turn the locking collar counterclockwise to unlock, and remove.
4. Remove dead bulb.
5. After comparing the bulbs to make sure they match, holding the new bulb by the plastic casing at the rear, insert the new bulb making sure the notches seat into the seating tabs. Remember- DON'T TOUCH THE BULB!
6. Re-install the locking collar clockwise, and the electrical connection plug.
7. Re-install the battery for driver's side installation. (Might be a good time to clean the posts if they are corroded.)
8. Test the bulb. Re-set your clock and re-tune the radio.

www.nissan-techinfo.com/nissan/refgh0v/og/sentra/2002-Nissan-Sentra.pdf
www.courtesyparts.com/nissan-manual/pdf/2004-Nissan-Sentra.pdf
UPDATE- with small enough hands, you do not have to disconnect the battery. This is a wasted step.
ANOTHER UPDATE: I just used these instructions, and they were very good, but for older Sentras it's a little different.


On a 1996 there is no "clicking" mechanism to turn counter clockwise. Instead there is a wire holder keeping the bulb in place. You have to remove the wire holder, and then you can pull out the bulb in its holder. On the holder there was a plastic piece marked "press here" which when pressed, allows you to pull the old bulb out of the holder.

Hope helped (remember rated this help).