Circuit scheme Thinkpad R32

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mgrunt · #1 Post by **mgrunt** » Fri Apr 11, 2008 9:26 am

Hello, I have old (bud nice) IBM ThinkPad R32. This notebook have one problem. It run on battery, but not on AC/DC adapter. Have anybody circuit scheme for this notebook? Error on the notebook is near power source location on board and I can repair it. Thanks a lot.

whizkid · #2 Post by **whizkid** » Fri Apr 11, 2008 9:35 am

Welcome to the forum!

IBM and Lenovo do not release schematics for ThinkPads. I've never known one to be available at all.

I would review the hardware maintenance manual and follow the diagnostic procedures, and replace appropriate components. The HMM will only suggest entire modules to replace, but sometimes they can be repaired. A connector would be simple, but to me, repairing a DC/DC circuit would take so much more effort that I'd probably buy a used motherboard.

Zedicus · #3 Post by **Zedicus** » Fri Apr 11, 2008 9:52 am

posibly its the DC fuse, its fairly close to the dc input on the circut board and quite tiny. start checking fuse looking things with an ohm meter until u findone that is open.

a lot of times you can solder over the top of the fuse and bypass it if its blown, its not ideal, but its easier then changing a micro fuse.

NOTE: i get the fealing theres not a lot of board level modders on these forums??

whizkid · #4 Post by **whizkid** » Fri Apr 11, 2008 10:30 am

Zedicus wrote:NOTE: i get the fealing theres not a lot of board level modders on these forums??

There really aren't a lot here. You can find information on disabling internal memory to use the full amount on an added stick on the 240* series.

There's information on modding some CPUs or modules to increase the FSB.

You can hack BIOS to allow un-approved internal devices, or tweak CPU cache settings.

There may be some other projects too.

mgrunt · #5 Post by **mgrunt** » Mon Apr 14, 2008 9:47 am

The fuses are OK. It's a pitty, so nice notebook. May be it's possible connect AC/DC adapter to battery contact, but I'm not sure...

#6 Post by **Harryc** » Mon Apr 14, 2008 9:52 am

Have you checked the output of the AC adapter?

mgrunt · #7 Post by **mgrunt** » Mon Apr 14, 2008 9:59 am

Yes, it's ok, because i use this adapter to my second notebook (R31). Power connector in notebook it's too ok.

ajkula66 · #8 Post by **ajkula66** » Mon Apr 14, 2008 10:44 am

Zedicus wrote:

NOTE: i get the fealing theres not a lot of board level modders on these forums??

You will not find too many people trying to improve Ferrari or Rolls-Royce, either...

Circuit scheme Thinkpad R32

Circuit scheme Thinkpad R32

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