Cf-19 Power Issues

Yesterday I powered on my CF-19 like normal, and it booted/posted fine, and then came to Windows. Since the battery died while it was asleep, it asked me how I wanted to load Windows. After I told it to load normally, the screen went black and everything stopped.

Since then, it won't power on, and won't charge. Even when the power adapter is plugged into the 19, I'm not getting the red/orange/green charge lights. I have checked the charger and it is working. I hooked a multimeter to it last night.

Today, I pulled the bottom cover off and looked for remnants of mystical blue smoke, and everything is good to the naked eye. No odd smells, nothing scorched.

Are there fuses/capacitors/links that could have gone bad? If I need to (hate to) I can send it to heartland.

Model: CF-19 Mk1
Upgrades: added WWAN card to internal sled

Basically stock.

 

Pull the battery and AC power. Cycle the power switch a half dozen times, holding the switch on for a few seconds each time. Plug in the AC and see if it boots. Start there and see what happens.

 

Roger that. Also, found a MK2 on ebay in MUCH better shape than mine. Ordered it for $212, and all it needs it my HD sled. Did that just in case.

 

Negative. No change.

 

pull memory, all drives, battery, etc try it then.

 

Did that earlier when looking for scorch marks.

 

You may need to pull the CMOS battery... Let is sit for 10 minutes or so. Plug it back in then reboot...

Short of that my friend... You may have a scrambled boot sector. (Which really shouldn't be affecting your battery charge indicator!) Either way your MK1 setup likely is not plug and play into the MK2 you bought.... Different drivers.

I have had this happen to me... Laptop in hibernation or standby and power is removed. Sometimes it is recoverable and other times you need to reload Winders...

 

I don't think the issue is anything with the hard drive (but I can see not being able to hot swap over to mk2) because I won't boot/post at all. Something on the powerside/mobo is wonky. Ill give the cmos battery a shot and see if that makes a difference.

 

Negative, no joy. No change at all. It has to be something board level or something is disconnected.

 

Judging from your logon you appear to be a ham... So you should know schematics. If you have a board diagram... Locate all the fuses and check for continuity. If you have lost a fuse... Scavenge one from another board or, if you have the room... A small buss fuse will work.

Sounds like a fuse issue... But I don't know why you would lose one.


EDIT: If you need the board layout or schematics... Let me know and I'll email them to you.

 

Im agreeing with you. I think its a fuse on the board somewhere. Ill PM you with my addy and get in deep. Ive got most of what I need with me or at home, so I should be able to go through and figure it all out.

 

Schematic sent... The fuses are usually little white boxes about the size of 2 match heads... The locations are usually marked similar to... F1, F2, F3, etc... They are usually easy to find. With the board layout you may try using the Ctrl + F search function while inside the PDF.

 

Got them, thank you.

Pros:
I should be able to get this fixed
Found a location for the gps antenna that I have

Cons
Wow do they suck at heat transference from the processor to the heat pipe. There is paste and pads on here. Should I go ahead and replace them (worried about the distance they covered) or leave them alone?

 

If there is paste on there that means that someone took it apart before you. OEM units have no paste. If it is still in good shape you can try to reshape the pad and push it back together with your fingernail to plump it up so that it makes good contact again. If you have ANY doubt, if it is too cracked or looks burned at all... Just buy a new pad. Shawn posted a link in a thread around here somewhere.

The heat transference actually works well with the heat pipe technology when everything is together correctly. We've had users working all day in desert heat with no issues.

Keep us posted.

 

Nice! I may redo the pads and the paste anyway just for peace of mind. Anytime Ive done work in the past, I would replace it. Cheap and makes you feel better.

I will post back later on what I find.

 

I also sent you a nice Service Manual that has complete diagnostics. It may help... I'm not sure... But it is still nice to have.

It's even larger than the last two put together at 13MB!

 

Did I hear my name?

Fujipoly Extreme System Builder Thermal Pad - 60 x 50 x 1.5 - Thermal Conductivity 11.0 W/mK - FrozenCPU.com

 

Hahaha that's awesome. Thanks for the link!

 

Shawn,
Repeat what you said ummmm last week???about NOT using Thermal Paste in conjunction with the pads. A long ago link discussed it and of course I can't find THAT one....some sort of study where paste was seen to detract from conductivity rather then being helpful.(repeat... if used WITH the pads)
Thanks man,

Jeff...for Toughbooks AFAIK...

 

In the past I was always told paste or pads. Not both. I'd personally only do arctic silver. But there is a huge gap on mine for some reason. I'll post pics.

 

No need to post pics... we know. DO NOT just use paste. The gap is too much. If you are using a new pad there is no reason for paste. If you are going to reuse and it looks good... Use a tiny bit of arctic silver if you like. I have never seen things get worse with the paste. But then I didn't do in-depth studies... Just what I have noticed.