Re: 701 question

New Message Reply Date view Thread view Subject view Author view Attachment view

From: Bill Morrow (penzance_at_gate.net)
Date: Sun Sep 10 2000 - 13:14:56 EDT

OK, the minute is up..
my bet is the keyboard...
it is the part most prone to failure, the failure is only with a few keys and not the entire keyboard...
AND, i'm sure someone will correct me on THIS assertion, i'm not entirely sure there ARE two keyboard
controllers on a laptop..
(please use fresh fruit when throwing things<g>)

p machule wrote:

> Wait a minute !
> The fact that the unit works with an external keyboard does NOT prove that the keyboard controller is fine.
> This is a laptop ...not a desktop .
> It has 2 ( sort off ) keyboard controller(s).
> Part one translates the row and columm stuff , part two is what we normally see on standard motherboards .
> It takes standard keyboard signals ,plays with them , and and sends them to the chipset.
> I'm sure that on most laptops this chip is one chip and resides on the motherboard.
>
> Good luck ;-}
>
> ...peter..
> ----- Original Message -----
> From: Kate Ross <kate_at_bored.lexxdog.com>
> To: <penzance_at_gate.net>
> Cc: ThinkPad List <thinkpad_at_cs.utk.edu>
> Sent: Sunday, September 10, 2000 10:48 AM
> Subject: Re: 701 question
>
> > So my question for the list now is does anyone have a spare KB or dead
> > unit with a good KB that thay they want to part with for a reasonable
> > price ?
> >
> > kate
> >
> > Bill Morrow wrote:
> > >
> > > Kate..
> > >
> > > i'm not entirely sure i agree with your conclusion..
> > >
> > > did you not say earlier that you attached an external keyboard and that it
> > > worked..?!
> > >
> > > the 701's are still serviceable..
> > >
> > > Kate Ross wrote:
> > >
> > > > Ok apears that the issue is likely with the KB controller itself. I
> > > > pulled the unit apart and with just the right side oof te kb attached
> > > > all the keys work great. With the left side only attached you get ghost
> > > > keys appaering the the right side. I would suspect that from what i know
> > > > this means I have a bad system board :( I was really haoping to be able
> > > > to use this system whe i am in the hostital in a few month's time so I
> > > > would like to work this out. Should i even consider such and old unit
> > > > for service ?
> > > >
> > > > thanx,
> > > >
> > > > kate
> > > >
> > > > Bill Morrow wrote:
> > > > >
> > > > > Kate..
> > > > >
> > > > > the 701 keyboard is composed of two "membranes" (one for each half) and its
> > > > > rather easy to get into it and clean the "contacts"..
> > > > > BUT, these "contacts" are little more than printed wiring..
> > > > >
> > > > > go into easy setup (hold down the F1 key while powering the 701 on..
> > > > > select the test icon, then hit Ctrl-A, then Ctrl-K..
> > > > > you will be presented with a keyboard layout..
> > > > > depress each key and the related point in the display kbd will turn on or
> > > > > off..
> > > > >
> > > > > try it..
> > > > >
> > > > > works with most thinkpads..
> > > > >
> > > > > Kate Ross wrote:
> > > > >
> > > > > > I just recently aquired a gorgeous 701cs, the unit looks almost brand
> > > > > > new and seems to function great except for one issue, the KB is working
> > > > > > abit oddly, for instance hitting L gives me LS, as does hitting just S.
> > > > > > It would appear to be a KB or controller issue. Anyone have any
> > > > > > suggestions for these units ? Should I look for a repleacement KB, or
> > > > > > maybe try dissasembling this one and cleaning all the connectors ?
> > > > > >
> > > > > > thanx,
> > > > > >
> > > > > > kate
> > > > >
> > > > > --
> > > > > ---
> > > > > Well from the looks of the KB test looks like one of the row/colum
> > > > > select lines are sharter as the doubled keys repeast ina patter, ie:
> > > > >
> > > > > s or l pressed both present sl
> > > > > w or o pressed both present wo
> > > > > caps or f7 pressed both present caps+f7
> > > > > f1 or f8 --> f1+f8
> > > > > . or x --> x+.
> > > > > 2 or 9 --> 2+9
> > > > >
> > > > > all other keys seem to be ok.
> > > > >
> > > > > Anyone have any dissasembly advice for theese units ?
> > > > >
> > > > > kate
> > 

--
---

Happy trails...

** Bill Morrow **   :-)
WEB page http://thinkpads.com
e-mail: bill_at_thinkpads.com, penzance_at_gate.net
open forum:  http://www.afaonline.com:8080/webboard/$webb.exe/~2/login?
sic transit gloria

New Message Reply Date view Thread view Subject view Author view Attachment view

This archive was generated by hypermail 2.1.3 : Thu Jan 23 2003 - 09:56:25 EST