CF-M34T MK1 electronic issue

Hello guys !
If somebody can help me with this ....
Panasonic TOUGHBOOK CF-M34T42AZZ is my "under pillow laptop" , no heat, no noise, fast enough, permanent turned on.
Since I have it I have ignored 2 things:
1. battery drain if is OFF in 3-4 days
2. if i unplug the adapter it show like it still charging (no swiching from AC to BATT)
I decide there is time to do something so, I have open it and observe few things: BATTFET is on, the +5V is present, the HD64F3434TF16 is very alive, i can hear the inversters noise.
I have the manual found on web (15,2MB 266pages) but there is not the diagram for my modell... too many differences in the supply area and power control. I did try use the concept but I have lost myself in signals BATTFETON, ACIN, BATTREF, ADPTIN, OVP&OCPL ... verry hard to follow them on board...
The power on swich circuit is different from modell to modell
So far nothing really damaged found, removed some bad state fets but they are good... just kept in wrong state... maybe the BIOS is wrong ? in present run this V151L15.L01 but i have try and some other and do the same V112L12.L01 or V110L15.L01

The right diagram will solve my nightmare so please if somebody have it ...
CF-M34T MK1 Celeron 300MHz processor
the board is a: DFUP7053ZA0 MAIN PCB

Very apreciate !!!

BEST REGARDS

 

That’s normal if the battery is 4 years old and older

All my Toughbooks that have older used batterys if they are unplugged for a few days although they were charged to 100% will not run for very long
If you have it plugged in and unplug it will probably run on battery for a few hours

The cf-m34 battery uses a fairly small battery
My cf-72 battery is even smaller and I notice the same issues as you

btw the closest Schematic I could find was for the mk-3


Alex

 

Hi
Battery outside laptop can stay charged for many mounths.
The laptop when is turned off must consume close to nothing so, outside or inside, must be the same for a longer perioud than 3-4 days.
What I have saw, was intense activity inside...
I have study the diagrams from the other modells and identify the parts involved into "drain". They should not be powered when is OFF! So there is something bad or wrong.
The part that usual must stay permanent under voltage is very very minimal. It's consumtion si neglijable. Maybe this modell have a design problem.
It not match with all the diagrams I have got already (
Thanks

 

OK , I understand now, the battery is good
Some component is drawing power when the laptop is off

Do you have any extra modifications?
Anything added on could cause a draw
I remember in some of my desktop systems that the laser on the external mouse stays on when the desktop is off

Alex

 

Critron,

you are also welcome to the forum

You are not alone I have CF-M34 mk3 and it does the same thing.

Does your CF-M34 have wwan card in it if so it is posable that is running your battery down. I hope we can solve this one

 

Hi guys ! Good to be here
About the extra modifications... no... no added anything.
More than this I have removed from inside all not needed parts like the GSM modem module and the combo LAN/MODEM board.
Consumtion is located in the power management block... when after power off it must cut itself his power.

 

Critron,

Did you disable the wwan modem in the bios as not it may stop some of the laptop switching off.

There is also some dip switchs tha have to be set to tell the laptop it does not have the wwan modem installed.

The Setting for them should be in the services manual and they are the same for a marks as in the setting for the switchs.

I have the hole service manual printed and I am not at home to look it up.

 

Critron,

I have done a quick google and got this from here http://toughbook.wikispaces.com/CF-m34

DIP switch functions:
Switch 4, changes LCD type? Appears as input to HD64F3434 controller.
Switches 1, 2, 3: Change installed RF module type:

* ON,OFF,OFF = RIM 802/902 module (connects to CN18)
* ON,OFF,ON = Sierra Wireless SB300 (connects to CN19)
* ON,ON,OFF = WAVE module (connects to CN20)
* OFF,ON,ON = "H"? nommfmzkskd further data known
* OFF,ON,OFF = "Enfora", no further data known
* ON,ON,ON = no RF Module installed

Could you try this and report back

 

In BIOS I have disable all the not neccesary pheriperals to be minimal.
This CF-M34T MK1 have very little processor 300MHz and I need all the resources that it have to go well with winXP... so everything not neccessary are OUT or deactivated from options in BIOS
BTW I can play AVI files on it

About the DIP Swich... I don't know what that set... I will pay more atention about this ... but there is another problem that have no relation with the drain.. remove the charger it show up it still charge... (I have remove 1 mosfet IRF2705 and this problem solved ... amazing huh? )

Man I wait or your manual hope there is my MK1 with Celeron 300MHz and T letter
Thanks alot

 

1 , 2 , 3 are on the ON position
4 is on the OFF position

 

Critron,

I have looked at the service manual I have and I have good news it has your version of the CF-M34 in it I can not tell the if the mottherboard is in it or not I can send it to you.

could you e-mail me at eeepc3ie (at) mcgcs.net and I will send it to you.

I have used winrar to compress it.

PS could you add your location to profile so we could also help us to give you better help

 

Thanks man
I sent you a PM now I wait
Regards

 

uffff my problem is still in actuality

Need the electrical diagram from modell:
Panasonic TOUGHBOOK CF-M34T MK1 build with CELERON @300MHz
(CF-M34T4D9EF or CF-M34T42AZZ)
Thank you very much

 

Mmhmmm...

Maybe THIS would be a simpler solution...

http://www.surpluscomputers.com/348988/panasonic-toughbook-laptop-700mhz-cf-m34.html

I know it's a fair bit of money for one of these, but it is def a few steps up, and if you NEED one of these uber-TINY units...

mnem
Woops! FOUND IT!

 

Is it just me or are the specs on that unit a bit off? The 700Mhz model did not have the built in wireless and the USB port is 1.1, not 2.0 (if memory serves correct).

 

Man thanks for the advice but if I wanted to get another unit probably I was done it already. And didn't lose time here. This is the fight between me and "it".
Is posible also to be in a wrong place with more SW issues and less HW pure electronic issues.

 

I don't know about the WiFi - maybe they were custom configured for a large order. Wireless A/B is ABOUT RIGHT for the age of these; It is, after all, just a matter of adding a Mini-PCI card.

Agreed though, I'm pretty sure the USB is REv 1.1, and also pretty sure the memory maxed out at 384MB too; (128MB onboard, up to 256 add-on) since it's a Win2K machine.

Understood, both of ya. I just thought I'd try and offer a bit of outside prespective on the thing... seems like you've been suffering a LOT in this battle.

mnem
... Whether 'tis nobler in the mind to suffer the slings and arrows of outrageous fortune, or take up arms against a sea of troubles and by opposing end them?