CF-29 will not boot from battery

any suggestions as to where I should start troubleshooting this laptop would help me greatly. I tried to use the search function but was not successful with the results that it gave me. it will power up fine on an AC adapter or from the DC charger inside a vehicle.

 

What you say it won't "boot up", do you mean that it PHYSICALLY won't turn on or it turns on and Windows won't boot?

Try removing the additional stick of RAM from the RAM slot and run with ONLY the built in RAM.

Since it turns on with an AC or a DC Lind adapter it would lead me to believe that the battery is bad.

Thanks

 

Or a fuse on the motherboard is blown
I had one running on ac and mediabay battery, but not on the regular battery.

figured out that the fuse located near the backup battery (under side mb) was blown, i think it is F1 on the schematics (white smd fuse, use a multimeter as you cant see it is blown)

 

dumb answer, but could battery be bad. had a dead battery that would not charge, not boot, but thought it was laptop. the battery was the issue........Driller

 

bad battery, blown fuse, bad connection on MB for battery or loose solder. One of those three would be my guess. Checking the battery with a multimeter or in another laptop could eliminate it as the problem. I would start there.

 

Driller -
You didn't say if the unit would boot without battery using AC or DC adapter. I learned early on in dealing with toughbooks that they will usually boot using an adapter (AC OR DC) with no battery at all in the machine. There's a lot of laptops out there that won't do that, and some people don't know that toughbooks will do this. If it will, the battery itself has a problem. If you can, "black box" the battery & see if it works in another machine. CAVEAT: I'm a newbie, but I like these machines. BTW; I have a CF-18DDAZXMM; haven't been able to get the tablet buttons to work. I noticed in an earlier posting by you that you used a Mk2 restore set to try on an Mk1 (or was it a 3?)... getting old and forgetful. However, if you have a set of disks (OEM Mk2 digitizer restore) I would be greatly interested in obtaining same from you (if you still have it) or borrowing, or working out some kind of deal. This Mk2 is CLEAN. looks nearly new, and I'd hate to have to part it out... Any advise to a newbie would be greatly appreciated.
Thanks,
hdwarejunkie

 

BTW, Toughasnails suggested I try a (dead) link to ebay, and I'm apparently not smart enough to figure out how to use the buy-sell-trade stuff. Toughbook support is no help at all; I'm afraid that only the "new" stuff floats their boat. Forgive me; I'm an OLD-timer; owned my first computer in 1976; meant only that I was good with a soldering iron. Have tried to keep up with things, but exponential growth in this area has me scrambling for what once were simple answers.

 

welcome to the nuthouse! only restore disc I have are touchscreen and there's a fellow by name of Rob that will download the discs you might need. check his info at bottom of his credits and go to his website and he may be able to help here. my stuff is touchscreen only. the cf-18's are good units and may be easier to get better prices for parts than the cf-29's, caddys are expensive, I like the cf-51 duo's as there are several ways to tweak them and as well are beginning to come down a little as far as caddys. you can still find some deals. you can't be that old hdware..........Driller

 

That would of been "TopCop1988" and the reason its dead was Mark H sold out of them. I just checked fleabay and could not find any. The MK2 Digitizer restore disk will be a hard one to get.